From af0d0d3f6ea8b6c3869fe2784a34ba947c7ae01f Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Fri, 3 Oct 2025 09:22:17 +0200
Subject: [PATCH 01/21] label and update list rework (#229)

* Reformatting the updates available list

* rewritten list padding to be dynamic

* Label rework + clearer messages (#228)

- Moved up label check and logic to earlier in the process, to iterate the whole run the same way if `-l` option is passed.
- Added messaging to make it clearer.
- Clarified Readme and --help message.
- Clarified prune message (to mean ALL dangling, not just currently updated).
---
 README.md    | 27 +++++++++++++--------------
 dockcheck.sh | 33 ++++++++++++++++-----------------
 2 files changed, 29 insertions(+), 31 deletions(-)

diff --git a/README.md b/README.md
index c3bb07c..c677456 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,15 @@
 ___
 ## Changelog
 
+
+- **v0.7.2**:
+    - Label rework:
+      - Moved up label logic to work globally on the current run.
+      - Only iterating on labeled containers when used with `-l` option, not listing others.
+      - Clarified messaging and readme/help texts.
+    - List reformatting for "available updates" numbering to easier highlight and copy:
+      - Padded with zero, changed `)` to `-`, example: `02 - homer`
+      - Can be selected by writing `2,3,4` or `02,03,04`.
 - **v0.7.1**:
     - Added support for multiple notifications using the same template
     - Added support for notification output format
@@ -36,18 +45,6 @@ ___
     - Bugfix: snooze dockcheck.sh-self-notification and some config clarification.
     - Added authentication support to Ntfy.sh.
     - Added suport for sendmail in the SMTP-template.
-- **v0.6.9**:
-    - Bugfix: label logic didn't skip recreation (skipped pulling).
-    - Added comma separated search filtering so you can selectively search exactly which containers to check/update.
-      - eg: `dockcheck.sh -yp homer,dozzle`
-- **v0.6.8**:
-    - Bugfix: Unbound variable in notify_v2.sh
-    - New option: "DisplaySourcedFiles" *config* added to list what files get sourced
-- **v0.6.7**: Snooze feature, curl, and consolidation
-    - Added snooze feature to delay notifications
-    - Added configurable default curl arguments
-    - Consolidated and standardized notify template update notifications
-    - Added curl error handling
 ___
 
 
@@ -69,7 +66,7 @@ Options:
 -h     Print this Help.
 -i     Inform - send a preconfigured notification.
 -I     Prints custom releasenote urls alongside each container with updates in CLI output (requires urls.list).
--l     Only update if label is set. See readme.
+-l     Only include containers with label set. See readme.
 -m     Monochrome mode, no printf colour codes and hides progress bar.
 -M     Prints custom releasenote urls as markdown (requires template support).
 -n     No updates, only checking availability.
@@ -283,10 +280,12 @@ Optionally add labels to compose-files. Currently these are the usable labels:
       mag37.dockcheck.only-specific-container: true
       mag37.dockcheck.restart-stack: true
 ```
-- `mag37.dockcheck.update: true` will when used with the `-l` option only update containers with this label and skip the rest. Will still list updates as usual.
+- `mag37.dockcheck.update: true` will when used with the `-l` option only check and update containers with this label set and skip the rest.  
 - `mag37.dockcheck.only-specific-container: true` works instead of the `-F` option, specifying the updated container when doing compose up, like `docker compose up -d homer`.
 - `mag37.dockcheck.restart-stack: true` works instead of the `-f` option, forcing stop+restart on the whole compose-stack (Caution: Will restart on every updated container within stack).
 
+Adding or modifying labels in compose-files requires a restart of the container to take effect.
+
 ## Workaround for non **amd64** / **arm64**
 `regctl` provides binaries for amd64/arm64, to use on other architecture you could try this workaround.
 Run regctl in a container wrapped in a shell script. Copied from [regclient/docs/install.md](https://github.com/regclient/regclient/blob/main/docs/install.md):
diff --git a/dockcheck.sh b/dockcheck.sh
index d46f4da..fec5085 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.7.1"
-# ChangeNotes: Add support for multiple notifications of the same type, output formatting, and file output
+VERSION="v0.7.2"
+# ChangeNotes: Reformatted updates list, rewrote label logic to work globally when used with `-l`.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 
@@ -42,7 +42,7 @@ Help() {
   echo "-h     Print this Help."
   echo "-i     Inform - send a preconfigured notification."
   echo "-I     Prints custom releasenote urls alongside each container with updates in CLI output (requires urls.list)."
-  echo "-l     Only update if label is set. See readme."
+  echo "-l     Only include containers with label set. See readme."
   echo "-m     Monochrome mode, no printf colour codes and hides progress bar."
   echo "-M     Prints custom releasenote urls as markdown (requires template support)."
   echo "-n     No updates; only checking availability without interaction."
@@ -342,12 +342,13 @@ dependency_check() {
 dependency_check "regctl" "regbin" "https://github.com/regclient/regclient/releases/latest/download/regctl-linux-TEMP"
 dependency_check "jq" "jqbin" "https://github.com/jqlang/jq/releases/latest/download/jq-linux-TEMP"
 
-# Numbered List function
-# if urls.list exists add release note url per line
+# Numbered List function - pads with zero
 list_options() {
-  num=1
+  local total="${#Updates[@]}"
+  [[ ${#total} < 2 ]] && local pads=2 || local pads="${#total}"
+  local num=1
   for update in "${Updates[@]}"; do
-    echo "$num) $update"
+    printf "%0*d - %s\n" $pads $num $update
     ((num++))
   done
 }
@@ -423,6 +424,10 @@ check_image() {
     printf "%s\n" "NoUpdates !$i - not checked, no compose file"
     return
   fi
+  # Checking if Label Only -option is set, and if container got the label
+  ContUpdateLabel=$($jqbin -r '."mag37.dockcheck.update"' <<< "$ContLabels")
+  [[ "$ContUpdateLabel" == "null" ]] && ContUpdateLabel=""
+  [[ "$OnlyLabel" == true ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "Skip $i"; return; } }
 
   local NoUpdates GotUpdates GotErrors
   ImageId=$(docker inspect "$i" --format='{{.Image}}')
@@ -448,7 +453,7 @@ check_image() {
 # Make required functions and variables available to subprocesses
 export -f check_image datecheck
 export Excludes_string="${Excludes[*]:-}" # Can only export scalar variables
-export t_out regbin RepoUrl DaysOld DRunUp jqbin
+export t_out regbin RepoUrl DaysOld DRunUp jqbin OnlyLabel
 
 # Check for POSIX xargs with -P option, fallback without async
 if (echo "test" | xargs -P 2 >/dev/null 2>&1) && [[ "$MaxAsync" != 0 ]]; then
@@ -478,6 +483,8 @@ done < <( \
   xargs $XargsAsync -I {} bash -c 'check_image "{}"' \
 )
 
+[[ "$OnlyLabel" == true ]] && printf "\n%bLabel option active:%b Only checking containers with labels set.\n" "$c_blue" "$c_reset"
+
 # Sort arrays alphabetically
 IFS=$'\n'
 NoUpdates=($(sort <<<"${NoUpdates[*]:-}"))
@@ -533,10 +540,6 @@ if [[ -n "${GotUpdates:-}" ]]; then
       ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
       ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
       [[ "$ContPath" == "null" ]] && ContPath=""
-      ContUpdateLabel=$($jqbin -r '."mag37.dockcheck.update"' <<< "$ContLabels")
-      [[ "$ContUpdateLabel" == "null" ]] && ContUpdateLabel=""
-      # Checking if Label Only -option is set, and if container got the label
-      [[ "$OnlyLabel" == true ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "No update label, skipping."; continue; } }
 
       # Checking if compose-values are empty - hence started with docker run
       if [[ -z "$ContPath" ]]; then
@@ -568,8 +571,6 @@ if [[ -n "${GotUpdates:-}" ]]; then
       [[ "$ContName" == "null" ]] && ContName=""
       ContEnv=$($jqbin -r '."com.docker.compose.project.environment_file"' <<< "$ContLabels")
       [[ "$ContEnv" == "null" ]] && ContEnv=""
-      ContUpdateLabel=$($jqbin -r '."mag37.dockcheck.update"' <<< "$ContLabels")
-      [[ "$ContUpdateLabel" == "null" ]] && ContUpdateLabel=""
       ContRestartStack=$($jqbin -r '."mag37.dockcheck.restart-stack"' <<< "$ContLabels")
       [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
       ContOnlySpecific=$($jqbin -r '."mag37.dockcheck.only-specific-container"' <<< "$ContLabels")
@@ -578,8 +579,6 @@ if [[ -n "${GotUpdates:-}" ]]; then
       printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
       # Checking if compose-values are empty - hence started with docker run
       [[ -z "$ContPath" ]] && { echo "Not a compose container, skipping."; continue; }
-      # Checking if Label Only -option is set, and if container got the label
-      [[ "$OnlyLabel" == true ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "No update label, skipping."; continue; } }
 
       # cd to the compose-file directory to account for people who use relative volumes
       cd "$ContPath" || { printf "\n%bPath error - skipping%b %s" "$c_red" "$c_reset" "$i"; continue; }
@@ -602,7 +601,7 @@ if [[ -n "${GotUpdates:-}" ]]; then
         ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d ${SpecificContainer} || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
       fi
     done
-    if [[ "$AutoPrune" == false ]] && [[ "$AutoMode" == false ]]; then printf "\n"; read -rep "Would you like to prune dangling images? y/[n]: " AutoPrune; fi
+    if [[ "$AutoPrune" == false ]] && [[ "$AutoMode" == false ]]; then printf "\n"; read -rep "Would you like to prune all dangling images? y/[n]: " AutoPrune; fi
     if [[ "$AutoPrune" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then printf "\nAuto pruning.."; docker image prune -f; fi
     printf "\n%bAll done!%b\n" "$c_green" "$c_reset"
   else

From be58805824c75d3a97154bb3902f0b68c50dca30 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 6 Oct 2025 10:18:38 +0200
Subject: [PATCH 02/21] hot-patch unquoted variable in updates list

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index fec5085..65e0882 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -348,7 +348,7 @@ list_options() {
   [[ ${#total} < 2 ]] && local pads=2 || local pads="${#total}"
   local num=1
   for update in "${Updates[@]}"; do
-    printf "%0*d - %s\n" $pads $num $update
+    printf "%0*d - %s\n" "$pads" "$num" "$update"
     ((num++))
   done
 }

From 05e5b23e7bb9cf0cf5f5930576cf9fda6ed76e06 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 7 Oct 2025 08:24:31 +0200
Subject: [PATCH 03/21] bugfix - unquoted var in list

Versionbump.
---
 dockcheck.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 65e0882..42c241a 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.7.2"
-# ChangeNotes: Reformatted updates list, rewrote label logic to work globally when used with `-l`.
+VERSION="v0.7.3"
+# ChangeNotes: Bugfix - unquoted variable in list. Also: Please consider donating.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 

From 24cae63b61e033640cb12891144126f12b61e603 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 7 Oct 2025 08:25:44 +0200
Subject: [PATCH 04/21] bugfix - unquoted var in list

Versionbump.
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c677456..9f7e04e 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
 ___
 ## Changelog
 
-
+- **v0.7.3**: Bugfix - unquoted variable in printf list caused occasional issues. 
 - **v0.7.2**:
     - Label rework:
       - Moved up label logic to work globally on the current run.

From 12a51d8e8351dd560972b3d584c8f2b6d45604c1 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Wed, 8 Oct 2025 19:00:29 +0200
Subject: [PATCH 05/21] added new sponsors

---
 README.md | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 9f7e04e..60733bf 100644
--- a/README.md
+++ b/README.md
@@ -344,11 +344,15 @@ dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/l
 
 ## Sponsorlist
 
-- [avegy](https://github.com/avegy)
-- [eichhorn](https://github.com/eichhorn)
-- [stepdg](https://github.com/stepdg)
-- [acer2220](https://github.com/acer2220)
-- [shgew](https://github.com/shgew)
+:small_orange_diamond: [avegy](https://github.com/avegy)
+:small_orange_diamond: [eichhorn](https://github.com/eichhorn)
+:small_orange_diamond: [stepdg](https://github.com/stepdg)
+:small_orange_diamond: [acer2220](https://github.com/acer2220)
+:small_orange_diamond: [shgew](https://github.com/shgew)
+:small_orange_diamond: [jonas3456](https://github.com/jonas3456)
+:small_orange_diamond: [4ndreasH](https://github.com/4ndreasH)
+:small_orange_diamond:
+
 ___
 
 ### The [story](https://mag37.org/posts/project_dockcheck/) behind it. 1 year in retrospect.

From 8970ee3f20c31ef9a61e0e5795b0647250f78941 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 21 Oct 2025 20:47:10 +0200
Subject: [PATCH 06/21] added to the sponsorlist

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 60733bf..a9fc38f 100644
--- a/README.md
+++ b/README.md
@@ -351,7 +351,9 @@ dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/l
 :small_orange_diamond: [shgew](https://github.com/shgew)
 :small_orange_diamond: [jonas3456](https://github.com/jonas3456)
 :small_orange_diamond: [4ndreasH](https://github.com/4ndreasH)
-:small_orange_diamond:
+:small_orange_diamond: [markoe01](https://github.com/markoe01)
+:small_orange_diamond: [mushrowan](https://github.com/mushrowan)
+:small_orange_diamond: 
 
 ___
 

From 7ea97d06ce21dd164f641348cec415b6ae3309b8 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Sat, 1 Nov 2025 09:14:49 +0100
Subject: [PATCH 07/21] New option -R and bugfix + cleanup (#236)

* Cleaned up legacy structure
* Add -R flag to skip container recreation after pulling images (#235)
* Added new -R option: Skip Container recreation
---------

Co-authored-by: mag37 <robin.ivehult@gmail.com>
Co-authored-by: NapalmZ <willy.baessato@gmail.com>
---
 README.md                    |  16 +++---
 default.config               |   2 +-
 dockcheck.sh                 | 101 +++++++++++++++++++----------------
 extras/apprise_quickstart.md |  30 ++---------
 4 files changed, 71 insertions(+), 78 deletions(-)

diff --git a/README.md b/README.md
index a9fc38f..a4228cd 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,14 @@
 ___
 ## Changelog
 
-- **v0.7.3**: Bugfix - unquoted variable in printf list caused occasional issues. 
+- **v0.7.4**:
+    - Added new option `-R`:
+      - Will skip container recreation after pulling images.
+      - Allows for more control and possible pipeline integration.
+    - Fixes:
+      - Bugfix for *value too great* error due to leading zeroes - solved with base10 conversion.
+      - Clean up of some legacy readme sections.
+- **v0.7.3**: Bugfix - unquoted variable in printf list caused occasional issues.
 - **v0.7.2**:
     - Label rework:
       - Moved up label logic to work globally on the current run.
@@ -41,10 +48,6 @@ ___
       - `<channel>_CONTAINERSONLY` : Only notify for docker container related updates
       - `<channel>_ALLOWEMPTY` : Always send notifications, even when empty
       - `<channel>_OUTPUT` : Define output format
-- **v0.7.0**:
-    - Bugfix: snooze dockcheck.sh-self-notification and some config clarification.
-    - Added authentication support to Ntfy.sh.
-    - Added suport for sendmail in the SMTP-template.
 ___
 
 
@@ -72,6 +75,7 @@ Options:
 -n     No updates, only checking availability.
 -p     Auto-Prune dangling images after update.
 -r     Allow checking for updates/updating images for docker run containers. Won't update the container.
+-R     Skip container recreation after pulling images.
 -s     Include stopped containers in the check. (Logic: docker ps -a).
 -t N   Set a timeout (in seconds) per container for registry checkups, 10 is default.
 -u     Allow automatic self updates - caution as this will pull new code and autorun it.
@@ -353,7 +357,7 @@ dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/l
 :small_orange_diamond: [4ndreasH](https://github.com/4ndreasH)
 :small_orange_diamond: [markoe01](https://github.com/markoe01)
 :small_orange_diamond: [mushrowan](https://github.com/mushrowan)
-:small_orange_diamond: 
+:small_orange_diamond:
 
 ___
 
diff --git a/default.config b/default.config
index d5d21aa..2b5f75c 100644
--- a/default.config
+++ b/default.config
@@ -19,6 +19,7 @@
 #OnlyLabel=true    # Only update if label is set. See readme.
 #ForceRestartStacks=true    # Force stop+start stack after update. Caution: restarts once for every updated container within stack.
 #DRunUp=true    # Allow updating images for docker run, wont update the container.
+#SkipRecreate    # Skip container recreation after pulling images.
 #MonoMode=true    # Monochrome mode, no printf colour codes and hides progress bar.
 #PrintReleaseURL=true   # Prints custom releasenote urls alongside each container with updates (requires urls.list)`
 #PrintMarkdownURL=true    # Prints custom releasenote urls as markdown
@@ -89,4 +90,3 @@
 # TELEGRAM_TOPIC_ID="0"
 #
 # FILE_PATH="${ScriptWorkDir}/updates_available.txt"
-
diff --git a/dockcheck.sh b/dockcheck.sh
index 42c241a..a3ebef0 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.7.3"
-# ChangeNotes: Bugfix - unquoted variable in list. Also: Please consider donating.
+VERSION="v0.7.4"
+# ChangeNotes: New option -R to pull without recreation. Fixes: value too great error, legacy cleanups.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 
@@ -47,6 +47,7 @@ Help() {
   echo "-M     Prints custom releasenote urls as markdown (requires template support)."
   echo "-n     No updates; only checking availability without interaction."
   echo "-p     Auto-prune dangling images after update."
+  echo "-R     Skip container recreation after pulling images."
   echo "-r     Allow checking for updates/updating images for docker run containers. Won't update the container."
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
   echo "-t     Set a timeout (in seconds) per container for registry checkups, 10 is default."
@@ -78,6 +79,7 @@ Exclude=${Exclude:-}
 DaysOld=${DaysOld:-}
 OnlySpecific=${OnlySpecific:-false}
 SpecificContainer=${SpecificContainer:-""}
+SkipRecreate=${SkipRecreate:-false}
 Excludes=()
 GotUpdates=()
 NoUpdates=()
@@ -95,7 +97,7 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"
 
-while getopts "ayfFhiIlmMnprsuvc:e:d:t:x:" options; do
+while getopts "ayfFhiIlmMnprsuvc:e:d:t:x:R" options; do
   case "${options}" in
     a|y) AutoMode=true ;;
     c)   CollectorTextFileDirectory="${OPTARG}" ;;
@@ -110,6 +112,7 @@ while getopts "ayfFhiIlmMnprsuvc:e:d:t:x:" options; do
     M)   PrintMarkdownURL=true ;;
     n)   DontUpdate=true; AutoMode=true;;
     p)   AutoPrune=true ;;
+    R)   SkipRecreate=true ;;
     r)   DRunUp=true ;;
     s)   Stopped="-a" ;;
     t)   Timeout="${OPTARG}" ;;
@@ -213,6 +216,7 @@ choosecontainers() {
     else
       ChoiceClean=${Choice//[,.:;]/ }
       for CC in $ChoiceClean; do
+        CC=$((10#$CC)) # Base 10 interpretation to strip leading zeroes
         if [[ "$CC" -lt 1 || "$CC" -gt $UpdCount ]]; then # Reset choice if out of bounds
           echo "Number not in list: $CC"; unset ChoiceClean; break 1
         else
@@ -554,53 +558,58 @@ if [[ -n "${GotUpdates:-}" ]]; then
 
       docker pull "$ContImage" || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
     done
-    printf "\n%bDone pulling updates. %bRecreating updated containers.%b\n" "$c_green" "$c_blue" "$c_reset"
+    printf "\n%bDone pulling updates.%b\n" "$c_green" "$c_reset"
 
-    CurrentQue=0
-    for i in "${SelectedUpdates[@]}"; do
-      ((CurrentQue+=1))
-      unset CompleteConfs
-      # Extract labels and metadata
-      ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
-      ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
-      ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
-      [[ "$ContPath" == "null" ]] && ContPath=""
-      ContConfigFile=$($jqbin -r '."com.docker.compose.project.config_files"' <<< "$ContLabels")
-      [[ "$ContConfigFile" == "null" ]] && ContConfigFile=""
-      ContName=$($jqbin -r '."com.docker.compose.service"' <<< "$ContLabels")
-      [[ "$ContName" == "null" ]] && ContName=""
-      ContEnv=$($jqbin -r '."com.docker.compose.project.environment_file"' <<< "$ContLabels")
-      [[ "$ContEnv" == "null" ]] && ContEnv=""
-      ContRestartStack=$($jqbin -r '."mag37.dockcheck.restart-stack"' <<< "$ContLabels")
-      [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
-      ContOnlySpecific=$($jqbin -r '."mag37.dockcheck.only-specific-container"' <<< "$ContLabels")
-      [[ "$ContOnlySpecific" == "null" ]] && ContRestartStack=""
+    if [[ "$SkipRecreate" == true ]]; then
+      printf "%bSkipping container recreation due to -R.%b\n" "$c_yellow" "$c_reset"
+    else
+      printf "%bRecreating updated containers.%b\n" "$c_blue" "$c_reset"
+      CurrentQue=0
+      for i in "${SelectedUpdates[@]}"; do
+        ((CurrentQue+=1))
+        unset CompleteConfs
+        # Extract labels and metadata
+        ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
+        ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
+        ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
+        [[ "$ContPath" == "null" ]] && ContPath=""
+        ContConfigFile=$($jqbin -r '."com.docker.compose.project.config_files"' <<< "$ContLabels")
+        [[ "$ContConfigFile" == "null" ]] && ContConfigFile=""
+        ContName=$($jqbin -r '."com.docker.compose.service"' <<< "$ContLabels")
+        [[ "$ContName" == "null" ]] && ContName=""
+        ContEnv=$($jqbin -r '."com.docker.compose.project.environment_file"' <<< "$ContLabels")
+        [[ "$ContEnv" == "null" ]] && ContEnv=""
+        ContRestartStack=$($jqbin -r '."mag37.dockcheck.restart-stack"' <<< "$ContLabels")
+        [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
+        ContOnlySpecific=$($jqbin -r '."mag37.dockcheck.only-specific-container"' <<< "$ContLabels")
+        [[ "$ContOnlySpecific" == "null" ]] && ContRestartStack=""
 
-      printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
-      # Checking if compose-values are empty - hence started with docker run
-      [[ -z "$ContPath" ]] && { echo "Not a compose container, skipping."; continue; }
+        printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
+        # Checking if compose-values are empty - hence started with docker run
+        [[ -z "$ContPath" ]] && { echo "Not a compose container, skipping."; continue; }
 
-      # cd to the compose-file directory to account for people who use relative volumes
-      cd "$ContPath" || { printf "\n%bPath error - skipping%b %s" "$c_red" "$c_reset" "$i"; continue; }
-      ## Reformatting path + multi compose
-      if [[ $ContConfigFile == '/'* ]]; then
-        CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s " "$conf"; done)
-      else
-        CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s/%s " "$ContPath" "$conf"; done)
-      fi
-      # Check if the container got an environment file set and reformat it
-      ContEnvs=""
-      if [[ -n "$ContEnv" ]]; then ContEnvs=$(for env in ${ContEnv//,/ }; do printf -- "--env-file %s " "$env"; done); fi
-      # Set variable when compose up should only target the specific container, not the stack
-      if [[ $OnlySpecific == true ]] || [[ $ContOnlySpecific == true ]]; then SpecificContainer="$ContName"; fi
+        # cd to the compose-file directory to account for people who use relative volumes
+        cd "$ContPath" || { printf "\n%bPath error - skipping%b %s" "$c_red" "$c_reset" "$i"; continue; }
+        ## Reformatting path + multi compose
+        if [[ $ContConfigFile == '/'* ]]; then
+          CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s " "$conf"; done)
+        else
+          CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s/%s " "$ContPath" "$conf"; done)
+        fi
+        # Check if the container got an environment file set and reformat it
+        ContEnvs=""
+        if [[ -n "$ContEnv" ]]; then ContEnvs=$(for env in ${ContEnv//,/ }; do printf -- "--env-file %s " "$env"; done); fi
+        # Set variable when compose up should only target the specific container, not the stack
+        if [[ $OnlySpecific == true ]] || [[ $ContOnlySpecific == true ]]; then SpecificContainer="$ContName"; fi
 
-      # Check if the whole stack should be restarted
-      if [[ "$ContRestartStack" == true ]] || [[ "$ForceRestartStacks" == true ]]; then
-        ${DockerBin} ${CompleteConfs} stop; ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
-      else
-        ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d ${SpecificContainer} || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
-      fi
-    done
+        # Check if the whole stack should be restarted
+        if [[ "$ContRestartStack" == true ]] || [[ "$ForceRestartStacks" == true ]]; then
+          ${DockerBin} ${CompleteConfs} stop; ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
+        else
+          ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d ${SpecificContainer} || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
+        fi
+      done
+    fi
     if [[ "$AutoPrune" == false ]] && [[ "$AutoMode" == false ]]; then printf "\n"; read -rep "Would you like to prune all dangling images? y/[n]: " AutoPrune; fi
     if [[ "$AutoPrune" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then printf "\nAuto pruning.."; docker image prune -f; fi
     printf "\n%bAll done!%b\n" "$c_green" "$c_reset"
diff --git a/extras/apprise_quickstart.md b/extras/apprise_quickstart.md
index 2d1ddd6..c526492 100644
--- a/extras/apprise_quickstart.md
+++ b/extras/apprise_quickstart.md
@@ -38,35 +38,15 @@ You can also use the [caronc/apprise-api](https://github.com/caronc/apprise-api)
 
 
 ### Customize the **notify.sh** file.
-After you're done with the setup of the container and tried your notifications, you can copy the `notify_apprise.sh` file to `notify.sh` and start editing it.
+After you're done with the setup of the container and tried your notifications, you need to follow the configuration setup (explained in detail in the README).
+Briefly: Copy `default.config` to `dockcheck.config` then edit it to change the following, `APPRISE_URL` matching your environment:
 
-Comment out/remove the bare metal apprise-command (starting with `apprise -vv -t...`).
-Uncomment and edit the `AppriseURL` variable and *curl* line
-It should look something like this when curling the API:
 ```bash
-send_notification() {
-Updates=("$@")
-UpdToString=$( printf "%s\n" "${Updates[@]}" )
-FromHost=$(hostname)
-
-printf "\nSending Apprise notification\n"
-
-MessageTitle="$FromHost - updates available."
-# Setting the MessageBody variable here.
-read -d '\n' MessageBody << __EOF
-Containers on $FromHost with updates available:
-
-$UpdToString
-
-__EOF
-
-AppriseURL="http://IP.or.mydomain.tld:8000/notify/apprise"
-curl -X POST -F "title=$MessageTitle" -F "body=$MessageBody" -F "tags=all" $AppriseURL
-
-}
+NOTIFY_CHANNELS="apprise"
+APPRISE_URL="http://apprise.mydomain.tld:1234/notify/apprise"
 ```
 
-That's all!
+That's it!
 ___
 ___
 

From c34d52bde064f1dc7506891c17ad995c2bc0e909 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Sat, 1 Nov 2025 09:25:11 +0100
Subject: [PATCH 08/21] the missing )

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a4228cd..3b0209e 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,7 @@ After the updates are complete, you'll get prompted if you'd like to prune dangl
 ___
 
 ## Dependencies
-- Running docker (duh) and compose, either standalone or plugin. (see [Podman fork](https://github.com/sudo-kraken/podcheck)  
+- Running docker (duh) and compose, either standalone or plugin. (see [Podman fork](https://github.com/sudo-kraken/podcheck))
 - Bash shell or compatible shell of at least v4.3
   - POSIX `xargs`, usually default but can be installed with the `findutils` package - to enable async.
 - [jq](https://github.com/jqlang/jq)

From c33c9f4387a5a9a40496a0107f8abff24ab26e64 Mon Sep 17 00:00:00 2001
From: Oleh Astappiev <4512729+astappiev@users.noreply.github.com>
Date: Thu, 13 Nov 2025 06:17:25 +0100
Subject: [PATCH 09/21] Fix version check condition (#239)

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index a3ebef0..a0150df 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -358,7 +358,7 @@ list_options() {
 }
 
 # Version check & initiate self update
-if [[ "$LatestRelease" != "undefined" ]]; then
+if [[ "$LatestSnippet" != "undefined" ]]; then
   if [[ "$VERSION" != "$LatestRelease" ]]; then
     printf "New version available! %b%s%b ⇒ %b%s%b \n Change Notes: %s \n" "$c_yellow" "$VERSION" "$c_reset" "$c_green" "$LatestRelease" "$c_reset" "$LatestChanges"
     if [[ "$AutoMode" == false ]]; then

From f1cc8190f9426c2208189872d5099b4c596d54ba Mon Sep 17 00:00:00 2001
From: Andrei Mateescu <andrei@amateescu.me>
Date: Fri, 12 Dec 2025 12:00:42 +0200
Subject: [PATCH 10/21] Add the Pangolin stack to urls.list (#241)

Adds a few items from the Pangolin stack (https://github.com/fosrl/) and others that are usually used together.
---
 notify_templates/urls.list | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/notify_templates/urls.list b/notify_templates/urls.list
index 2b31c3b..aeba433 100644
--- a/notify_templates/urls.list
+++ b/notify_templates/urls.list
@@ -15,12 +15,14 @@ calibre https://github.com/linuxserver/docker-calibre/releases
 calibre-web https://github.com/linuxserver/docker-calibre-web/releases
 cleanuperr https://github.com/flmorg/cleanuperr/releases
 cross-seed https://github.com/cross-seed/cross-seed/releases
+crowdsec https://github.com/crowdsecurity/crowdsec/releases
 cup https://github.com/sergi0g/cup/releases
 dockge https://github.com/louislam/dockge/releases
 dozzle https://github.com/amir20/dozzle/releases
 flatnotes https://github.com/dullage/flatnotes/releases
 forgejo https://codeberg.org/forgejo/forgejo/releases
 fressrss https://github.com/FreshRSS/FreshRSS/releases
+gerbil https://github.com/fosrl/gerbil/releases
 gluetun https://github.com/qdm12/gluetun/releases
 go2rtc https://github.com/AlexxIT/go2rtc/releases
 gotify https://github.com/gotify/server/releases
@@ -45,9 +47,11 @@ mealie https://github.com/mealie-recipes/mealie/releases
 meilisearch https://github.com/meilisearch/meilisearch/releases
 monica https://github.com/monicahq/monica/releases
 mqtt https://github.com/eclipse/mosquitto/tags
+newt https://github.com/fosrl/newt/releases
 nextcloud-aio-mastercontainer https://github.com/nextcloud/all-in-one/releases
 nginx https://github.com/docker-library/official-images/blob/master/library/nginx
 owncast https://github.com/owncast/owncast/releases
+pangolin https://github.com/fosrl/pangolin/releases
 prowlarr https://github.com/Prowlarr/Prowlarr/releases
 prowlarr-ls https://github.com/linuxserver/docker-prowlarr/releases
 qbittorrent https://www.qbittorrent.org/news
@@ -66,6 +70,7 @@ snappymail https://github.com/the-djmaze/snappymail/releases
 sonarr https://github.com/Sonarr/Sonarr/releases/
 sonarr-ls https://github.com/linuxserver/docker-sonarr/releases
 syncthing https://github.com/syncthing/syncthing/releases
+tailscale https://github.com/tailscale/tailscale/releases
 tautulli https://github.com/Tautulli/Tautulli/releases
 thelounge https://github.com/thelounge/thelounge/releases
 traefik https://github.com/traefik/traefik/releases

From 8ee5575081ecf2c4bc712307b0119d78b088069a Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Fri, 12 Dec 2025 11:12:57 +0100
Subject: [PATCH 11/21] Added option -b to enable image backups pre pull.
 (#242)

* added new variables, options and setup

* datecheck function rewrite

* moved the cleanup and prune logic to always run. Changed some wording on messages.

* added function to print currently backed up images

* Patched bugfix to not recreate stopped containers

* changed the RepoDigests grab and logic

* Moved the backup - cleanup to always trigger if -b option is used. Added -p&-b warning.

* version bump and readme fixes
---
 README.md      |  51 +++++++++++++-------
 default.config |   1 +
 dockcheck.sh   | 128 ++++++++++++++++++++++++++++++++++++++++---------
 3 files changed, 140 insertions(+), 40 deletions(-)

diff --git a/README.md b/README.md
index 3b0209e..f811796 100644
--- a/README.md
+++ b/README.md
@@ -13,15 +13,22 @@
 </p>
 
 <h2 align="center">CLI tool to automate docker image updates or notifying when updates are available.</h2>
-<h3 align="center">selective updates, exclude containers, custom labels, notification plugins, prune when done etc.</h3>
+<h3 align="center">selective updates, include/exclude containers, image backups, custom labels, notification plugins, prune when done etc.</h3>
 
-<h4 align="center">:whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks but for actual pulls - <a href="#whale-docker-hub-pull-limit-chart_with_downwards_trend-not-an-issue-for-checks-but-for-actual-pulls">read more</a></h4>
+<h4 align="center">:whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks only for actual pulls - <a href="#whale-docker-hub-pull-limit-chart_with_downwards_trend-not-an-issue-for-checks-but-for-actual-pulls">read more</a></h4>
 
 <h5 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
 
 ___
 ## Changelog
 
+- **v0.7.5**:
+    - Added new option **BackupForDays**; `-b N` and `-B`:
+      - Backup an image before pulling a new version for easy rollback in case of breakage.
+      - Removes backed up images older than *N* days.
+      - List currently backed up images with `-B`.
+    - Fixes:
+      - Bugfix for `-s` *Stopped* to not recreate stopped containers after update.
 - **v0.7.4**:
     - Added new option `-R`:
       - Will skip container recreation after pulling images.
@@ -38,16 +45,6 @@ ___
     - List reformatting for "available updates" numbering to easier highlight and copy:
       - Padded with zero, changed `)` to `-`, example: `02 - homer`
       - Can be selected by writing `2,3,4` or `02,03,04`.
-- **v0.7.1**:
-    - Added support for multiple notifications using the same template
-    - Added support for notification output format
-    - Added support for file output
-    - Added optional configuration variables per channel to (replace `<channel>` with any channel name):
-      - `<channel>_TEMPLATE` : Specify a template
-      - `<channel>_SKIPSNOOZE` : Skip snooze
-      - `<channel>_CONTAINERSONLY` : Only notify for docker container related updates
-      - `<channel>_ALLOWEMPTY` : Always send notifications, even when empty
-      - `<channel>_OUTPUT` : Define output format
 ___
 
 
@@ -61,6 +58,8 @@ Example:    dockcheck.sh -y -x 10 -d 10 -e nextcloud,heimdall
 
 Options:
 -a|y   Automatic updates, without interaction.
+-b N   Enable image backups and sets number of days to keep from pruning.
+-B     List currently backed up images, then exit.
 -c D   Exports metrics as prom file for the prometheus node_exporter. Provide the collector textfile directory.
 -d N   Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower.
 -e X   Exclude containers, separated by comma.
@@ -86,18 +85,19 @@ Options:
 ### Basic example:
 ```
 $ ./dockcheck.sh
-. . .
+[##################################################] 5/5
+
 Containers on latest version:
 glances
 homer
 
 Containers with updates available:
-1) adguardhome
-2) syncthing
-3) whoogle-search
+01) adguardhome
+02) syncthing
+03) whoogle-search
 
 Choose what containers to update:
-Enter number(s) separated by comma, [a] for all - [q] to quit:
+Enter number(s) separated by comma, [a] for all - [q] to quit: 1,2
 ```
 Then it proceeds to run `pull` and `up -d` on every container with updates.  
 After the updates are complete, you'll get prompted if you'd like to prune dangling images.
@@ -245,6 +245,23 @@ The `urls.list` file is just an example and I'd gladly see that people contribut
 Pass `-x N` where N is number of subprocesses allowed, experiment in your environment to find a suitable max!  
 Change the default value by editing the `MaxAsync=N` variable in `dockcheck.sh`. To disable the subprocess function set `MaxAsync=0`.
 
+## Image Backups; `-b N` to backup previous images as custom (retagged) images for easy rollback
+When the option `BackupForDays` is set **dockcheck** will store the image being updated as a backup, retagged with a different name and removed due to age configured (*BackupForDays*) in a future run.  
+Let's say we're updating `b4bz/homer:latest` - then before replacing the current image it will be retagged with the name `dockcheck/homer:2025-10-26_1132_latest`
+- `dockcheck` as repo name to not interfere with others.
+- `homer` is the image.
+- `2025-10-26_1132` is the time when running the script.
+- `latest` is the tag of the image.
+
+Then if an update breaks, you could restore the image by stopping the container, delete the new image, eg. `docker rmi b4bz/homer:latest`, then retag the backup as latest `docker tag dockcheck/homer:<date>_latest b4bz/homer:latest`.  
+After that, start the container again (now with the backup image active) and it will be updated as usual next time you run dockcheck or other updates.
+
+The backed up images will be removed if they're older than *BackupForDays* value (passed as `-b N` or set in the `dockcheck.config` with `BackupForDays=N`) and then pruned.  
+If configured for eg. 7 days, force earlier cleaning by just passing a lower number of days, eg. `-b 2` to clean everything older than 2 days.  
+Backed up images will not be removed if neither `-b` flag nor `BackupForDays` config variable is set.
+
+Use the capital option `-B` to list currently backed up images. Or list all images with `docker images`.  
+To manually remove any backed up images, do `docker rmi dockcheck/homer:2025-10-26_1132_latest`.  
 
 ## Extra plugins and tools:
 
diff --git a/default.config b/default.config
index 2b5f75c..90abfa5 100644
--- a/default.config
+++ b/default.config
@@ -28,6 +28,7 @@
 #CurlRetryCount=3    # Max number of curl retries
 #CurlConnectTimeout=5    # Time to wait for curl to establish a connection before failing
 #DisplaySourcedFiles=false    # Display what files are being sourced/used
+#BackupForDays=7    # Enable backups of images and removes backups older than N days.
 
 ### Notify settings
 ## All commented values are examples only. Modify as needed.
diff --git a/dockcheck.sh b/dockcheck.sh
index a0150df..906ed0d 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.7.4"
-# ChangeNotes: New option -R to pull without recreation. Fixes: value too great error, legacy cleanups.
+VERSION="v0.7.5"
+# ChangeNotes: New option -b N to backup image before pulling for easy rollback.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 
@@ -34,6 +34,8 @@ Help() {
   echo
   echo "Options:"
   echo "-a|y   Automatic updates, without interaction."
+  echo "-b N   Enable image backups and sets number of days to keep from pruning."
+  echo "-B     List currently backed up images, then exit."
   echo "-c     Exports metrics as prom file for the prometheus node_exporter. Provide the collector textfile directory."
   echo "-d N   Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower."
   echo "-e X   Exclude containers, separated by comma."
@@ -58,6 +60,12 @@ Help() {
   echo "Project source: $Github"
 }
 
+# Print current backups function
+print_backups() {
+  printf "\n%b---%b Currently backed up images %b---%b\n\n" "$c_teal" "$c_blue" "$c_teal" "$c_reset"
+  docker images | sed -ne '/^REPOSITORY/p' -ne '/^dockcheck/p'
+}
+
 # Initialise variables
 Timeout=${Timeout:-10}
 MaxAsync=${MaxAsync:-1}
@@ -77,6 +85,7 @@ Stopped=${Stopped:-""}
 CollectorTextFileDirectory=${CollectorTextFileDirectory:-}
 Exclude=${Exclude:-}
 DaysOld=${DaysOld:-}
+BackupForDays=${BackupForDays:-}
 OnlySpecific=${OnlySpecific:-false}
 SpecificContainer=${SpecificContainer:-""}
 SkipRecreate=${SkipRecreate:-false}
@@ -97,9 +106,15 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"
 
-while getopts "ayfFhiIlmMnprsuvc:e:d:t:x:R" options; do
+# Timestamps
+RunTimestamp=$(date +'%Y-%m-%d_%H%M')
+RunEpoch=$(date +'%s')
+
+while getopts "ayb:BfFhiIlmMnprsuvc:e:d:t:x:R" options; do
   case "${options}" in
     a|y) AutoMode=true ;;
+    b)   BackupForDays="${OPTARG}" ;;
+    B)   print_backups; exit 0 ;;
     c)   CollectorTextFileDirectory="${OPTARG}" ;;
     d)   DaysOld=${OPTARG} ;;
     e)   Exclude=${OPTARG} ;;
@@ -156,6 +171,13 @@ if [[ -n "$DaysOld" ]]; then
     exit 2
   fi
 fi
+if [[ -n "$BackupForDays" ]]; then
+  if ! [[ $BackupForDays =~ ^[0-9]+$ ]]; then
+    printf "-b argument given (%s) is not a number.\n" "$BackupForDays"
+    exit 2
+  fi
+  [[ "$AutoPrune" == true ]] && printf "%bWARNING: When -b option is used, -p has no function.%b\n" "$c_yellow" "$c_reset"
+fi
 if [[ -n "$CollectorTextFileDirectory" ]]; then
   if ! [[ -d  $CollectorTextFileDirectory ]]; then
     printf "The directory (%s) does not exist.\n" "$CollectorTextFileDirectory"
@@ -196,11 +218,11 @@ self_update() {
     printf "\n%s\n" "Pulling the latest version."
     git pull --force || { printf "%bGit error,%b manually pull/clone.\n" "$c_red" "$c_reset"; return; }
     printf "\n%s\n" "--- starting over with the updated version ---"
-    cd - || { printf "%bPath error.%b\n" "$c_red"; return; }
+    cd - || { printf "%bPath error.%b\n" "$c_red" "$c_reset"; return; }
     exec "$ScriptPath" "${ScriptArgs[@]}" # run the new script with old arguments
     exit 0 # exit the old instance
   else
-    cd - || { printf "%bPath error.%b\n" "$c_red"; return; }
+    cd - || { printf "%bPath error.%b\n" "$c_red" "$c_reset"; return; }
     self_update_curl
   fi
 }
@@ -209,6 +231,7 @@ choosecontainers() {
   while [[ -z "${ChoiceClean:-}" ]]; do
     read -r -p "Enter number(s) separated by comma, [a] for all - [q] to quit: " Choice
     if [[ "$Choice" =~ [qQnN] ]]; then
+      [[ -n "${BackupForDays:-}" ]] && remove_backups
       exit 0
     elif [[ "$Choice" =~ [aAyY] ]]; then
       SelectedUpdates=( "${GotUpdates[@]}" )
@@ -228,16 +251,39 @@ choosecontainers() {
 }
 
 datecheck() {
-  ImageDate=$("$regbin" -v error image inspect "$RepoUrl" --format='{{.Created}}' | cut -d" " -f1)
+  ImageDate="$1"
+  DaysMax="$2"
   ImageEpoch=$(date -d "$ImageDate" +%s 2>/dev/null) || ImageEpoch=$(date -f "%Y-%m-%d" -j "$ImageDate" +%s)
-  ImageAge=$(( ( $(date +%s) - ImageEpoch )/86400 ))
-  if [[ "$ImageAge" -gt "$DaysOld" ]]; then
+  ImageAge=$(( ( RunEpoch - ImageEpoch )/86400 ))
+  if [[ "$ImageAge" -gt "$DaysMax" ]]; then
     return 0
   else
     return 1
   fi
 }
 
+remove_backups() {
+  IFS=$'\n'
+  CleanupCount=0
+  for backup_img in $(docker images --format "{{.Repository}} {{.Tag}}" | sed -n '/^dockcheck/p'); do
+    repo_name=${backup_img% *}
+    backup_tag=${backup_img#* }
+    backup_date=${backup_tag%%_*}
+    # UNTAGGING HERE
+    if datecheck "$backup_date" "$BackupForDays"; then
+      [[ "$CleanupCount" == 0 ]] && printf "\n%bRemoving backed up images older then %s days.%b\n" "$c_blue" "$BackupForDays" "$c_reset"
+      docker rmi "${repo_name}:${backup_tag}" && ((CleanupCount+=1))
+    fi
+  done
+  unset IFS
+  if [[ "$CleanupCount" == 0 ]]; then
+    printf "\nNo backup images to remove.\n"
+  else
+    [[ "$CleanupCount" -gt 1 ]] && b_phrase="backups" || b_phrase="backup"
+    printf "\n%b%s%b %s removed.%b\n" "$c_green" "$CleanupCount" "$c_teal" "$b_phrase" "$c_reset"
+  fi
+}
+
 progress_bar() {
   QueCurrent="$1"
   QueTotal="$2"
@@ -443,7 +489,7 @@ check_image() {
     if [[ "$LocalHash" == *"$RegHash"* ]]; then
       printf "%s\n" "NoUpdates $i"
     else
-      if [[ -n "${DaysOld:-}" ]] && ! datecheck; then
+      if [[ -n "${DaysOld:-}" ]] && ! datecheck $("$regbin" -v error image inspect "$RepoUrl" --format='{{.Created}}' | cut -d" " -f1) "$DaysOld" ; then
         printf "%s\n" "NoUpdates +$i ${ImageAge}d"
       else
         printf "%s\n" "GotUpdates $i"
@@ -457,7 +503,7 @@ check_image() {
 # Make required functions and variables available to subprocesses
 export -f check_image datecheck
 export Excludes_string="${Excludes[*]:-}" # Can only export scalar variables
-export t_out regbin RepoUrl DaysOld DRunUp jqbin OnlyLabel
+export t_out regbin RepoUrl DaysOld DRunUp jqbin OnlyLabel RunTimestamp RunEpoch
 
 # Check for POSIX xargs with -P option, fallback without async
 if (echo "test" | xargs -P 2 >/dev/null 2>&1) && [[ "$MaxAsync" != 0 ]]; then
@@ -540,11 +586,25 @@ if [[ -n "${GotUpdates:-}" ]]; then
     for i in "${SelectedUpdates[@]}"; do
       ((CurrentQue+=1))
       printf "\n%bNow updating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
-      ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
-      ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
-      ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
+      ContConfig=$(docker inspect "$i" --format '{{json .}}')
+      ContImage=$($jqbin -r '."Config"."Image"' <<< "$ContConfig")
+      ImageId=$($jqbin -r '."Image"' <<< "$ContConfig")
+      ContPath=$($jqbin -r '."Config"."Labels"."com.docker.compose.project.working_dir"' <<< "$ContConfig")
       [[ "$ContPath" == "null" ]] && ContPath=""
 
+      # Add new backup tag prior to pulling if option is set
+      if [[ -n "${BackupForDays:-}" ]]; then
+        ImageConfig=$(docker image inspect "$ImageId" --format '{{ json . }}')
+        ContRepoDigests=$($jqbin -r '.RepoDigests[0]' <<< "$ImageConfig")
+        [[ "$ContRepoDigests" == "null" ]] && ContRepoDigests=""
+        ContRepo=${ContImage%:*}
+        ContApp=${ContRepo#*/}
+        [[ "$ContImage" =~ ":" ]] && ContTag=${ContImage#*:} || ContTag="latest"
+        BackupName="dockcheck/${ContApp}:${RunTimestamp}_${ContTag}"
+        docker tag "$ImageId" "$BackupName"
+        printf "%b%s backed up as %s%b\n" "$c_teal" "$i" "$BackupName" "$c_reset"
+      fi
+
       # Checking if compose-values are empty - hence started with docker run
       if [[ -z "$ContPath" ]]; then
         if [[ "$DRunUp" == true ]]; then
@@ -556,7 +616,13 @@ if [[ -n "${GotUpdates:-}" ]]; then
         continue
       fi
 
-      docker pull "$ContImage" || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
+      if docker pull "$ContImage"; then
+        # Removal of the <none>-tag image left behind from backup
+        if [[ ! -z "${ContRepoDigests:-}" ]] && [[ -n "${BackupForDays:-}" ]]; then docker rmi "$ContRepoDigests"; fi
+      else
+        printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1
+      fi
+
     done
     printf "\n%bDone pulling updates.%b\n" "$c_green" "$c_reset"
 
@@ -569,8 +635,8 @@ if [[ -n "${GotUpdates:-}" ]]; then
         ((CurrentQue+=1))
         unset CompleteConfs
         # Extract labels and metadata
-        ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
-        ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
+        ContConfig=$(docker inspect "$i" --format '{{json .}}')
+        ContLabels=$($jqbin -r '."Config"."Labels"' <<< "$ContConfig")
         ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
         [[ "$ContPath" == "null" ]] && ContPath=""
         ContConfigFile=$($jqbin -r '."com.docker.compose.project.config_files"' <<< "$ContLabels")
@@ -583,14 +649,22 @@ if [[ -n "${GotUpdates:-}" ]]; then
         [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
         ContOnlySpecific=$($jqbin -r '."mag37.dockcheck.only-specific-container"' <<< "$ContLabels")
         [[ "$ContOnlySpecific" == "null" ]] && ContRestartStack=""
+        ContStateRunning=$($jqbin -r '."State"."Running"' <<< "$ContConfig")
+        [[ "$ContStateRunning" == "null" ]] && ContStateRunning=""
+
+        if [[ "$ContStateRunning" == "true" ]]; then
+          printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
+        else
+          printf  "\n%bSkipping recreation of %b%s%b as it's not running.%b\n" "$c_yellow" "$c_blue" "$i" "$c_yellow" "$c_reset"
+          continue
+        fi
 
-        printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
         # Checking if compose-values are empty - hence started with docker run
         [[ -z "$ContPath" ]] && { echo "Not a compose container, skipping."; continue; }
 
         # cd to the compose-file directory to account for people who use relative volumes
         cd "$ContPath" || { printf "\n%bPath error - skipping%b %s" "$c_red" "$c_reset" "$i"; continue; }
-        ## Reformatting path + multi compose
+        # Reformatting path + multi compose
         if [[ $ContConfigFile == '/'* ]]; then
           CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s " "$conf"; done)
         else
@@ -610,14 +684,22 @@ if [[ -n "${GotUpdates:-}" ]]; then
         fi
       done
     fi
-    if [[ "$AutoPrune" == false ]] && [[ "$AutoMode" == false ]]; then printf "\n"; read -rep "Would you like to prune all dangling images? y/[n]: " AutoPrune; fi
-    if [[ "$AutoPrune" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then printf "\nAuto pruning.."; docker image prune -f; fi
-    printf "\n%bAll done!%b\n" "$c_green" "$c_reset"
+    printf "\n%bAll updates done!%b\n" "$c_green" "$c_reset"
+
+    # Trigger pruning only when backup-function is not used
+    if [[ -z "${BackupForDays:-}" ]]; then
+      if [[ "$AutoPrune" == false ]] && [[ "$AutoMode" == false ]]; then printf "\n"; read -rep "Would you like to prune all dangling images? y/[n]: " AutoPrune; fi
+      if [[ "$AutoPrune" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then printf "\nAuto pruning.."; docker image prune -f; fi
+    fi
+
   else
-    printf "\nNo updates installed, exiting.\n"
+    printf "\nNo updates installed.\n"
   fi
 else
-  printf "\nNo updates available, exiting.\n"
+  printf "\nNo updates available.\n"
 fi
 
+# Clean up old backup image tags if -b is used
+[[ -n "${BackupForDays:-}" ]] && remove_backups
+
 exit 0

From 4e0b705b8ba9e6af124bd26526441f2430952803 Mon Sep 17 00:00:00 2001
From: singularity0821 <17620644+singularity0821@users.noreply.github.com>
Date: Sun, 14 Dec 2025 11:49:56 +0100
Subject: [PATCH 12/21] Sanitize message for Matrix notifications (#243)

* Sanitize message for Matrix notifications

* Use variable for jq and increment version of Matrix script

---------

Co-authored-by: martin <martin@meissnitzer.dev>
---
 notify_templates/notify_matrix.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/notify_templates/notify_matrix.sh b/notify_templates/notify_matrix.sh
index efdf37d..fbdb332 100644
--- a/notify_templates/notify_matrix.sh
+++ b/notify_templates/notify_matrix.sh
@@ -1,5 +1,5 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
-NOTIFY_MATRIX_VERSION="v0.4"
+NOTIFY_MATRIX_VERSION="v0.5"
 #
 # Required receiving services must already be set up.
 # Leave (or place) this file in the "notify_templates" subdirectory within the same directory as the main dockcheck.sh script.
@@ -29,7 +29,7 @@ trigger_matrix_notification() {
   AccessToken="${!AccessTokenVar}" # e.g. MATRIX_ACCESS_TOKEN=token-value
   RoomId="${!RoomIdVar}" # e.g. MATRIX_ROOM_ID=myroom
   MatrixServer="${!MatrixServerVar}" # e.g. MATRIX_SERVER_URL=http://matrix.yourdomain.tld
-  MsgBody="{\"msgtype\":\"m.text\",\"body\":\"$MessageBody\"}"
+  MsgBody=$($jqbin -Rn --arg body "$MessageBody" '{msgtype:"m.text", body:$body}')
 
   # URL Example:  https://matrix.org/_matrix/client/r0/rooms/!xxxxxx:example.com/send/m.room.message?access_token=xxxxxxxx
   curl -S -o /dev/null ${CurlArgs} -X POST "$MatrixServer/_matrix/client/r0/rooms/$RoomId/send/m.room.message?access_token=$AccessToken" -H 'Content-Type: application/json' -d "$MsgBody"
@@ -37,4 +37,4 @@ trigger_matrix_notification() {
   if [[ $? -gt 0 ]]; then
     NotifyError=true
   fi
-}
\ No newline at end of file
+}

From fc5c5db72bfa0bf5a676341e7c99661ebd17b043 Mon Sep 17 00:00:00 2001
From: smoochy <34371932+smoochy@users.noreply.github.com>
Date: Sun, 25 Jan 2026 10:47:48 +0100
Subject: [PATCH 13/21] [Issue 255] Fix Notifiy also checking for /etc/HOSTNAME
 (#256)

* - Adjusted **FromHost** variable to have fallback options when `cat /etc/hostname` or `hostname` command fails.
* - Bumped Version to 0.7
---
 notify_templates/notify_v2.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/notify_templates/notify_v2.sh b/notify_templates/notify_v2.sh
index 5ff088f..a44870a 100644
--- a/notify_templates/notify_v2.sh
+++ b/notify_templates/notify_v2.sh
@@ -1,4 +1,4 @@
-NOTIFY_V2_VERSION="v0.6"
+NOTIFY_V2_VERSION="v0.7"
 #
 # If migrating from an older notify template, remove your existing notify.sh file.
 # Leave (or place) this file in the "notify_templates" subdirectory within the same directory as the main dockcheck.sh script.
@@ -40,7 +40,7 @@ done
 
 enabled_notify_templates=( "${!unique_templates[@]}" )
 
-FromHost=$(cat /etc/hostname)
+FromHost="$(cat /etc/hostname 2>/dev/null)" || FromHost="$(hostname 2>/dev/null)" || FromHost="UNKNOWN"
 
 CurrentEpochTime=$(date +"%Y-%m-%dT%H:%M:%S")
 CurrentEpochSeconds=$(date +%s)

From c9a4150b6732573e27594277b6ad2e171dfae8a0 Mon Sep 17 00:00:00 2001
From: smoochy <sm00chy2k@gmail.com>
Date: Mon, 26 Jan 2026 20:14:47 +0100
Subject: [PATCH 14/21] Adjusted default.config & readme

---
 README.md      | 134 ++++++++++++++++++++++++++++++++-----------------
 default.config |  46 ++++++++---------
 2 files changed, 111 insertions(+), 69 deletions(-)

diff --git a/README.md b/README.md
index f811796..5346b53 100644
--- a/README.md
+++ b/README.md
@@ -18,40 +18,41 @@
 <h4 align="center">:whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks only for actual pulls - <a href="#whale-docker-hub-pull-limit-chart_with_downwards_trend-not-an-issue-for-checks-but-for-actual-pulls">read more</a></h4>
 
 <h5 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
-
 ___
+
 ## Changelog
 
 - **v0.7.5**:
-    - Added new option **BackupForDays**; `-b N` and `-B`:
-      - Backup an image before pulling a new version for easy rollback in case of breakage.
-      - Removes backed up images older than *N* days.
-      - List currently backed up images with `-B`.
-    - Fixes:
-      - Bugfix for `-s` *Stopped* to not recreate stopped containers after update.
+  - Added new option **BackupForDays**; `-b N` and `-B`:
+    - Backup an image before pulling a new version for easy rollback in case of breakage.
+    - Removes backed up images older than *N* days.
+    - List currently backed up images with `-B`.
+  - Fixes:
+    - Bugfix for `-s` *Stopped* to not recreate stopped containers after update.
 - **v0.7.4**:
-    - Added new option `-R`:
-      - Will skip container recreation after pulling images.
-      - Allows for more control and possible pipeline integration.
-    - Fixes:
-      - Bugfix for *value too great* error due to leading zeroes - solved with base10 conversion.
-      - Clean up of some legacy readme sections.
+  - Added new option `-R`:
+    - Will skip container recreation after pulling images.
+    - Allows for more control and possible pipeline integration.
+  - Fixes:
+    - Bugfix for *value too great* error due to leading zeroes - solved with base10 conversion.
+    - Clean up of some legacy readme sections.
 - **v0.7.3**: Bugfix - unquoted variable in printf list caused occasional issues.
 - **v0.7.2**:
-    - Label rework:
-      - Moved up label logic to work globally on the current run.
-      - Only iterating on labeled containers when used with `-l` option, not listing others.
-      - Clarified messaging and readme/help texts.
-    - List reformatting for "available updates" numbering to easier highlight and copy:
-      - Padded with zero, changed `)` to `-`, example: `02 - homer`
-      - Can be selected by writing `2,3,4` or `02,03,04`.
+  - Label rework:
+    - Moved up label logic to work globally on the current run.
+    - Only iterating on labeled containers when used with `-l` option, not listing others.
+    - Clarified messaging and readme/help texts.
+  - List reformatting for "available updates" numbering to easier highlight and copy:
+    - Padded with zero, changed `)` to `-`, example: `02 - homer`
+    - Can be selected by writing `2,3,4` or `02,03,04`.
+
 ___
 
-
-![](extras/example.gif)
+![example.gif](extras/example.gif)
 
 ## `dockcheck.sh`
-```
+
+```shell
 $ ./dockcheck.sh -h
 Syntax:     dockcheck.sh [OPTION] [comma separated names to include]
 Example:    dockcheck.sh -y -x 10 -d 10 -e nextcloud,heimdall
@@ -82,8 +83,9 @@ Options:
 -x N   Set max asynchronous subprocesses, 1 default, 0 to disable, 32+ tested.
 ```
 
-### Basic example:
-```
+### Basic example
+
+```shell
 $ ./dockcheck.sh
 [##################################################] 5/5
 
@@ -99,12 +101,14 @@ Containers with updates available:
 Choose what containers to update:
 Enter number(s) separated by comma, [a] for all - [q] to quit: 1,2
 ```
+
 Then it proceeds to run `pull` and `up -d` on every container with updates.  
 After the updates are complete, you'll get prompted if you'd like to prune dangling images.
 
 ___
 
 ## Dependencies
+
 - Running docker (duh) and compose, either standalone or plugin. (see [Podman fork](https://github.com/sudo-kraken/podcheck))
 - Bash shell or compatible shell of at least v4.3
   - POSIX `xargs`, usually default but can be installed with the `findutils` package - to enable async.
@@ -112,12 +116,14 @@ ___
   - User will be prompted to install with package manager or download static binary.
 - [regclient/regctl](https://github.com/regclient/regclient) (Licensed under [Apache-2.0 License](http://www.apache.org/licenses/LICENSE-2.0))  
   - User will be prompted to download `regctl` if not in `PATH` or `PWD`.  
-  - regctl requires `amd64/arm64` - see [workaround](#roller_coaster-workaround-for-non-amd64--arm64) if other architecture is used.
+  - regctl requires `amd64/arm64` - see [workaround](#workaround-for-non-amd64--arm64) if other architecture is used.
 
 ## Install Instructions
+
 Download the script to a directory in **PATH**, I'd suggest using `~/.local/bin` as that's usually in **PATH**.  
 For OSX/macOS preferably use `/usr/local/bin`.
-```sh
+
+```shell
 # basic example with curl:
 curl -L https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh -o ~/.local/bin/dockcheck.sh
 chmod +x ~/.local/bin/dockcheck.sh
@@ -128,25 +134,31 @@ wget -O ~/.local/bin/dockcheck.sh "https://raw.githubusercontent.com/mag37/dockc
 # OSX or macOS version with curl:
  curl -L https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh -o /usr/local/bin/dockcheck.sh && chmod +x /usr/local/bin/dockcheck.sh
 ```
+
 Then call the script anywhere with just `dockcheck.sh`.
 Add preferred `notify.sh`-template to the same directory - this will not be touched by the scripts self-update function.
 
 ## Configuration
+
 To modify settings and have them persist through updates - copy the `default.config` to `dockcheck.config` alongside the script or in `~/.config/`.  
 Alternatively create an alias where specific flags and values are set.  
 Example `alias dc=dockcheck.sh -p -x 10 -t 3`.
 
 ## Notifications
+
 Triggered with the `-i` flag. Will send a list of containers with updates available and a notification when `dockcheck.sh` itself has an update.
 `notify_templates/notify_v2.sh` is the default notification wrapper, if `notify.sh` is present and configured, it will override.
 
 Example of a cron scheduled job running non-interactive at 10'oclock excluding 1 container and sending notifications:
 `0 10 * * * /home/user123/.local/bin/dockcheck.sh -nix 10 -e excluded_container1`
 
-#### Installation and configuration:
+## Installation and configuration
+
 Set up a directory structure as below.
-You only need the `notify_templates/notify_v2.sh` file and any notification templates you wish to enable, but there is no harm in having all of them present.
-```
+You only need the `notify_templates/notify_v2.sh` file and any notification templates
+you wish to enable, but there is no harm in having all of them present.
+
+```shell
  .
 ├── notify_templates/
 │   ├── notify_DSM.sh
@@ -167,14 +179,15 @@ You only need the `notify_templates/notify_v2.sh` file and any notification temp
 ├── dockcheck.sh
 └── urls.list         # optional
 ```
+
 - Uncomment and set the `NOTIFY_CHANNELS=""` environment variable in `dockcheck.config` to a space separated string of your desired notification channels to enable.
 - Uncomment and set the environment variables related to the enabled notification channels. Eg. `GOTIFY_DOMAIN=""` + `GOTIFY_TOKEN=""`.
 
 It's recommended to only do configuration with variables within `dockcheck.config` and not modify `notify_templates/notify_X.sh` directly. If you wish to customize the notify templates yourself, you may copy them to your project root directory alongside the main `dockcheck.sh` (where they're also ignored by git).  
 Customizing `notify_v2.sh` is handled the same as customizing the templates, but it must be renamed to `notify.sh` within the `dockcheck.sh` root directory.  
 
+### Snooze feature
 
-#### Snooze feature:
 Configure to receive scheduled notifications only if they're new since the last notification - within a set time frame.
 
 **Example:** *Dockcheck is scheduled to run every hour. You will receive an update notification within an hour of availability.*  
@@ -188,8 +201,8 @@ If an update becomes available for an item that is not snoozed, notifications wi
 
 The actual snooze duration will be 60 seconds less than `SNOOZE_SECONDS` to account for minor scheduling or run time issues.
 
+### Current notify templates
 
-#### Current notify templates:
 - Synology [DSM](https://www.synology.com/en-global/dsm)
 - Email with [mSMTP](https://wiki.debian.org/msmtp) (or deprecated alternative [sSMTP](https://wiki.debian.org/sSMTP))
 - Apprise (with it's [multitude](https://github.com/caronc/apprise#supported-notifications) of notifications)
@@ -208,11 +221,14 @@ The actual snooze duration will be 60 seconds less than `SNOOZE_SECONDS` to acco
 Further additions are welcome - suggestions or PRs!
 <sub><sup>Initiated and first contributed by [yoyoma2](https://github.com/yoyoma2).</sup></sub>
 
-#### Notification channel configuration:
+### Notification channel configuration
+
 All required environment variables for each notification channel are provided in the default.config file as comments and must be uncommented and modified for your requirements.  
 For advanced users, additional functionality is available via custom configurations and environment variables.  
 Use cases - all configured in `dockcheck.config`:  
-(replace `<channel>` with the upper case name of the of the channel as listed in `NOTIFY_CHANNELS` variable, eg `TELEGRAM_SKIPSNOOZE`)
+(replace `<channel>` with the upper case name of the of the channel as listed in
+`NOTIFY_CHANNELS` variable, eg `TELEGRAM_SKIPSNOOZE`)
+
 - To bypass the snooze feature, even when enabled, add the variable `<channel>_SKIPSNOOZE` and set it to `true`.
 - To configure the channel to only send container update notifications, add the variable `<channel>_CONTAINERSONLY` and set it to `true`.
 - To send notifications even when there are no updates available, add the variable `<channel>_ALLOWEMPTY`  and set it to `true`.
@@ -224,7 +240,8 @@ Use cases - all configured in `dockcheck.config`:
   - Add all other environment variables required for the chosen template to function with `<channel>` in upper case as the prefix rather than the template name.
     - For example, if `<channel>` is `mynotification` and the template configured is `slack`, you would need to set `MYNOTIFICATION_CHANNEL_ID` and `MYNOTIFICATION_ACCESS_TOKEN`.
 
-### Release notes addon
+## Release notes addon
+
 There's a function to use a lookup-file to add release note URL's to the notification message.  
 Copy the notify_templates/`urls.list` file to the script directory, it will be used automatically if it's there.  
 Modify it as necessary, the names of interest in the left column needs to match your container names.  
@@ -232,22 +249,28 @@ To also list the URL's in the CLI output (choose containers list) use the `-I` o
 For Markdown formatting also add the `-M` option. (**this requires the template to be compatible - see gotify for example**)  
 
 The output of the notification will look something like this:
-```
+
+```shell
 Containers on hostname with updates available:
 apprise-api  ->  https://github.com/linuxserver/docker-apprise-api/releases
 homer  ->  https://github.com/bastienwirtz/homer/releases
 nginx  ->  https://github.com/docker-library/official-images/blob/master/library/nginx
 ...
 ```
+
 The `urls.list` file is just an example and I'd gladly see that people contribute back when they add their preferred URLs to their lists.
 
 ## Asyncronous update checks with **xargs**; `-x N` option. (default=1)
+
 Pass `-x N` where N is number of subprocesses allowed, experiment in your environment to find a suitable max!  
-Change the default value by editing the `MaxAsync=N` variable in `dockcheck.sh`. To disable the subprocess function set `MaxAsync=0`.
+Change the default value by editing the `MaxAsync=N` variable in `dockcheck.config`. To disable the subprocess function set `MaxAsync=0`.
 
 ## Image Backups; `-b N` to backup previous images as custom (retagged) images for easy rollback
+
 When the option `BackupForDays` is set **dockcheck** will store the image being updated as a backup, retagged with a different name and removed due to age configured (*BackupForDays*) in a future run.  
-Let's say we're updating `b4bz/homer:latest` - then before replacing the current image it will be retagged with the name `dockcheck/homer:2025-10-26_1132_latest`
+Let's say we're updating `b4bz/homer:latest` - then before replacing the current image
+it will be retagged with the name `dockcheck/homer:2025-10-26_1132_latest`
+
 - `dockcheck` as repo name to not interfere with others.
 - `homer` is the image.
 - `2025-10-26_1132` is the time when running the script.
@@ -263,17 +286,20 @@ Backed up images will not be removed if neither `-b` flag nor `BackupForDays` co
 Use the capital option `-B` to list currently backed up images. Or list all images with `docker images`.  
 To manually remove any backed up images, do `docker rmi dockcheck/homer:2025-10-26_1132_latest`.  
 
-## Extra plugins and tools:
+## Extra plugins and tools
 
 ### Using dockcheck.sh with the Synology DSM
+
 If you run your container through the *Container Manager GUI* - only notifications are supported.  
 While if running manual (vanilla docker compose CLI) will allow you to use the update function too.  
 Some extra setup to tie together with Synology DSM - check out the [addons/DSM/README.md](./addons/DSM/README.md).
 
 ### Prometheus and node_exporter
+
 Dockcheck can be used together with [Prometheus](https://github.com/prometheus/prometheus) and [node_exporter](https://github.com/prometheus/node_exporter) to export metrics via the file collector, scheduled with cron or likely.
 This is done with the `-c` option, like this:
-```
+
+```shell
 dockcheck.sh -c /path/to/exporter/directory
 ```
 
@@ -281,26 +307,32 @@ See the [README.md](./addons/prometheus/README.md) for more detailed information
 <sub><sup>Contributed by [tdralle](https://github.com/tdralle).</sup></sub>  
 
 ### Zabbix config to monitor docker image updates
+
 If you already use Zabbix - this config will show numbers of available docker image updates on host.  
 Example: *2 Docker Image updates on host-xyz*  
 See project: [thetorminal/zabbix-docker-image-updates](https://github.com/thetorminal/zabbix-docker-image-updates)
 
 ### Serve REST API to list all available updates
+
 A custom python script to serve a REST API to get pulled into other monitoring tools like [homepage](https://github.com/gethomepage/homepage).  
 See [discussion here](https://github.com/mag37/dockcheck/discussions/146).
 
 ### Wrapper Script for Unraid's User Scripts
+
 A custom bash wrapper script to allow the usage of dockcheck as a Unraid User Script plugin.  
 See [discussion here](https://github.com/mag37/dockcheck/discussions/145).
 
 ## Labels
+
 Optionally add labels to compose-files. Currently these are the usable labels:
-```
+
+```yaml
     labels:
       mag37.dockcheck.update: true
       mag37.dockcheck.only-specific-container: true
       mag37.dockcheck.restart-stack: true
 ```
+
 - `mag37.dockcheck.update: true` will when used with the `-l` option only check and update containers with this label set and skip the rest.  
 - `mag37.dockcheck.only-specific-container: true` works instead of the `-F` option, specifying the updated container when doing compose up, like `docker compose up -d homer`.
 - `mag37.dockcheck.restart-stack: true` works instead of the `-f` option, forcing stop+restart on the whole compose-stack (Caution: Will restart on every updated container within stack).
@@ -308,10 +340,11 @@ Optionally add labels to compose-files. Currently these are the usable labels:
 Adding or modifying labels in compose-files requires a restart of the container to take effect.
 
 ## Workaround for non **amd64** / **arm64**
+
 `regctl` provides binaries for amd64/arm64, to use on other architecture you could try this workaround.
 Run regctl in a container wrapped in a shell script. Copied from [regclient/docs/install.md](https://github.com/regclient/regclient/blob/main/docs/install.md):
 
-```sh
+```shell
 cat >regctl <<EOF
 #!/bin/sh
 opts=""
@@ -325,9 +358,11 @@ docker container run \$opts -i --rm --net host \\
 EOF
 chmod 755 regctl
 ```
+
 Test it with `./regctl --help` and then either add the file to the same path as *dockcheck.sh* or in your path (eg. `~/.local/bin/regctl`).
 
 ## Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks but for actual pulls
+
 Due to recent changes in [Docker Hub usage and limits](https://docs.docker.com/docker-hub/usage/)
 >Unauthenticated users: 10 pulls/hour  
 >Authenticated users with a free account: 100 pulls/hour
@@ -336,8 +371,11 @@ This is not an issue for registry checks. But if you have a large stack and pull
 You could use/modify the login-wrapper function in the example below to automate the login prior to running `dockcheck.sh`.
 
 ### Function to auth with docker hub before running
-**Example** - Change names, paths, and remove cat+password flag if you rather get prompted:
-```sh
+
+**Example** - Change names, paths, and remove cat+password flag if you rather get
+prompted:
+
+```shell
 function dchk {
   cat ~/pwd.txt | docker login --username YourUser --password-stdin
   ~/dockcheck.sh "$@"
@@ -345,22 +383,26 @@ function dchk {
 ```
 
 ## `-r flag` disclaimer and warning
+
 **Wont auto-update the containers, only their images. (compose is recommended)**  
-`docker run` dont support using new images just by restarting a container.  
+`docker run` doesn't support using new images just by restarting a container.  
 Containers need to be manually stopped, removed and created again to run on the new image.  
 Using the `-r` option together with eg. `-i` and `-n` to just check for updates and send notifications and not update is safe though!
 
 ## Known issues
+
 - No detailed error feedback (just skip + list what's skipped).
 - Not respecting `--profile` options when re-creating the container.
 - Not working well with containers created by **Portainer**.
 - **Watchtower** might cause issues due to retagging images when checking for updates (and thereby pulling new images).
 
 ## Debugging
+
 If you hit issues, you could check the output of the `extras/errorCheck.sh` script for clues.
 Another option is to run the main script with debugging in a subshell `bash -x dockcheck.sh` - if there's a particular container/image that's causing issues you can filter for just that through `bash -x dockcheck.sh nginx`.
 
 ## License
+
 dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/licenses/gpl-3.0-standalone.html) license.
 
 ## Sponsorlist
@@ -378,4 +420,4 @@ dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/l
 
 ___
 
-### The [story](https://mag37.org/posts/project_dockcheck/) behind it. 1 year in retrospect.
+## The [story](https://mag37.org/posts/project_dockcheck/) behind it. 1 year in retrospect
diff --git a/default.config b/default.config
index 90abfa5..43baea6 100644
--- a/default.config
+++ b/default.config
@@ -5,30 +5,30 @@
 ## Uncomment and set your preferred configuration variables here
 ## This will not be replaced on updates
 
-#Timeout=10    # Set a timeout (in seconds) per container for registry checkups.
-#MaxAsync=10    # Set max asynchronous subprocesses, 1 default, 0 to disable.
-#BarWidth=50    # The character width of the progress bar
-#AutoMode=true    # Automatic updates, without interaction.
-#DontUpdate=true    # No updates; only checking availability without interaction.
-#AutoPrune=true    # Auto-Prune dangling images after update.
-#AutoSelfUpdate=true    # Allow automatic self updates - caution as this will pull new code and autorun it.
-#Notify=true    # Inform - send a preconfigured notification.
-#Exclude="one,two"    # Exclude containers, separated by comma.
-#DaysOld="5"    # Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower.
-#Stopped="-a"    # Include stopped containers in the check. (Logic: docker ps -a).
-#OnlyLabel=true    # Only update if label is set. See readme.
+#AutoMode=true              # Automatic updates, without interaction.
+#AutoPrune=true             # Auto-Prune dangling images after update.
+#AutoSelfUpdate=true        # Allow automatic self updates - caution as this will pull new code and autorun it.
+#BackupForDays=7            # Enable backups of images and removes backups older than N days.
+#BarWidth=50                # The character width of the progress bar
+#CurlConnectTimeout=5       # Time to wait for curl to establish a connection before failing
+#CurlRetryCount=3           # Max number of curl retries
+#CurlRetryDelay=1           # Time between curl retries
+#DaysOld="5"                # Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower.
+#DisplaySourcedFiles=false  # Display what files are being sourced/used
+#DontUpdate=true            # No updates; only checking availability without interaction.
+#DRunUp=true                # Allows for checking containers, which had been created using 'docker run' and don't use docker compose. Won't update the containers.
+#Exclude="one,two"          # Exclude containers, separated by comma.
 #ForceRestartStacks=true    # Force stop+start stack after update. Caution: restarts once for every updated container within stack.
-#DRunUp=true    # Allow updating images for docker run, wont update the container.
-#SkipRecreate    # Skip container recreation after pulling images.
-#MonoMode=true    # Monochrome mode, no printf colour codes and hides progress bar.
-#PrintReleaseURL=true   # Prints custom releasenote urls alongside each container with updates (requires urls.list)`
-#PrintMarkdownURL=true    # Prints custom releasenote urls as markdown
-#OnlySpecific=true    # Only compose up the specific container, not the whole compose. (useful for master-compose structure).
-#CurlRetryDelay=1    # Time between curl retries
-#CurlRetryCount=3    # Max number of curl retries
-#CurlConnectTimeout=5    # Time to wait for curl to establish a connection before failing
-#DisplaySourcedFiles=false    # Display what files are being sourced/used
-#BackupForDays=7    # Enable backups of images and removes backups older than N days.
+#MaxAsync=10                # Set max asynchronous subprocesses, 1 default, 0 to disable.
+#MonoMode=true              # Monochrome mode, no printf colour codes and hides progress bar.
+#Notify=true                # Inform - send a preconfigured notification.
+#OnlyLabel=true             # Only update if label is set. See readme.
+#OnlySpecific=true          # Only compose up the specific container, not the whole compose. (useful for master-compose structure).
+#PrintMarkdownURL=true      # Prints custom releasenote urls as markdown
+#PrintReleaseURL=true       # Prints custom releasenote urls alongside each container with updates (requires urls.list)`
+#SkipRecreate               # Skip container recreation after pulling images.
+#Stopped="-a"               # Include stopped containers in the check. (Logic: docker ps -a).
+#Timeout=10                 # Set a timeout (in seconds) per container for registry checkups.
 
 ### Notify settings
 ## All commented values are examples only. Modify as needed.

From 9c780b8b3566161d0a5fc7ec9da4f77b41dc6eb8 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Tue, 27 Jan 2026 09:31:19 +0100
Subject: [PATCH 15/21] Consistent sub-headers

---
 README.md | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 5346b53..1d1e660 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@
 <h4 align="center">:whale: Docker Hub pull limit :chart_with_downwards_trend: not an issue for checks only for actual pulls - <a href="#whale-docker-hub-pull-limit-chart_with_downwards_trend-not-an-issue-for-checks-but-for-actual-pulls">read more</a></h4>
 
 <h5 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
+
 ___
 
 ## Changelog
@@ -152,7 +153,7 @@ Triggered with the `-i` flag. Will send a list of containers with updates availa
 Example of a cron scheduled job running non-interactive at 10'oclock excluding 1 container and sending notifications:
 `0 10 * * * /home/user123/.local/bin/dockcheck.sh -nix 10 -e excluded_container1`
 
-## Installation and configuration
+#### Installation and configuration
 
 Set up a directory structure as below.
 You only need the `notify_templates/notify_v2.sh` file and any notification templates
@@ -186,7 +187,7 @@ you wish to enable, but there is no harm in having all of them present.
 It's recommended to only do configuration with variables within `dockcheck.config` and not modify `notify_templates/notify_X.sh` directly. If you wish to customize the notify templates yourself, you may copy them to your project root directory alongside the main `dockcheck.sh` (where they're also ignored by git).  
 Customizing `notify_v2.sh` is handled the same as customizing the templates, but it must be renamed to `notify.sh` within the `dockcheck.sh` root directory.  
 
-### Snooze feature
+#### Snooze feature
 
 Configure to receive scheduled notifications only if they're new since the last notification - within a set time frame.
 
@@ -201,7 +202,7 @@ If an update becomes available for an item that is not snoozed, notifications wi
 
 The actual snooze duration will be 60 seconds less than `SNOOZE_SECONDS` to account for minor scheduling or run time issues.
 
-### Current notify templates
+#### Current notify templates
 
 - Synology [DSM](https://www.synology.com/en-global/dsm)
 - Email with [mSMTP](https://wiki.debian.org/msmtp) (or deprecated alternative [sSMTP](https://wiki.debian.org/sSMTP))
@@ -221,7 +222,7 @@ The actual snooze duration will be 60 seconds less than `SNOOZE_SECONDS` to acco
 Further additions are welcome - suggestions or PRs!
 <sub><sup>Initiated and first contributed by [yoyoma2](https://github.com/yoyoma2).</sup></sub>
 
-### Notification channel configuration
+#### Notification channel configuration
 
 All required environment variables for each notification channel are provided in the default.config file as comments and must be uncommented and modified for your requirements.  
 For advanced users, additional functionality is available via custom configurations and environment variables.  
@@ -240,7 +241,7 @@ Use cases - all configured in `dockcheck.config`:
   - Add all other environment variables required for the chosen template to function with `<channel>` in upper case as the prefix rather than the template name.
     - For example, if `<channel>` is `mynotification` and the template configured is `slack`, you would need to set `MYNOTIFICATION_CHANNEL_ID` and `MYNOTIFICATION_ACCESS_TOKEN`.
 
-## Release notes addon
+#### Release notes addon
 
 There's a function to use a lookup-file to add release note URL's to the notification message.  
 Copy the notify_templates/`urls.list` file to the script directory, it will be used automatically if it's there.  

From 9755c32f8cc02b4eb924b4c7a89465af8186ee60 Mon Sep 17 00:00:00 2001
From: solitudechn <solitudechn@gmail.com>
Date: Wed, 28 Jan 2026 17:19:34 +0800
Subject: [PATCH 16/21] add-bark-notify (#259)

---
 default.config                  |  4 ++-
 notify_templates/notify_bark.sh | 46 +++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 notify_templates/notify_bark.sh

diff --git a/default.config b/default.config
index 90abfa5..77e18d1 100644
--- a/default.config
+++ b/default.config
@@ -34,7 +34,7 @@
 ## All commented values are examples only. Modify as needed.
 ##
 ## Uncomment the line below and specify the notification channels you wish to enable in a space separated string
-# NOTIFY_CHANNELS="apprise discord DSM file generic HA gotify matrix ntfy pushbullet pushover slack smtp telegram file"
+# NOTIFY_CHANNELS="apprise discord DSM file generic HA gotify matrix ntfy pushbullet pushover slack smtp telegram bark file"
 #
 ## Uncomment the line below and specify the number of seconds to delay notifications to enable snooze
 # SNOOZE_SECONDS=86400
@@ -90,4 +90,6 @@
 # TELEGRAM_TOKEN="token-value"
 # TELEGRAM_TOPIC_ID="0"
 #
+# BARK_KEY=""
+#
 # FILE_PATH="${ScriptWorkDir}/updates_available.txt"
diff --git a/notify_templates/notify_bark.sh b/notify_templates/notify_bark.sh
new file mode 100644
index 0000000..c720cf2
--- /dev/null
+++ b/notify_templates/notify_bark.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# NOTIFY_BARK_VERSION="v1.0"
+
+trigger_bark_notification() {
+    local channel="$1"
+
+    if [[ -z "$jqbin" ]]; then
+        for path in "$jqbin" "jq" "./jq" "../jq" "./jq-linux-TEMP" "../jq-linux-TEMP"; do
+            if command -v "$path" &>/dev/null; then jqbin="$path"; break; fi
+        done
+    fi
+    [[ -z "$jqbin" ]] && { echo "Error: jq missing"; return 1; }
+
+    [[ -z "$BARK_KEY" ]] && { echo "Error: Key not set"; return 1; }
+
+    local sound="${BARK_SOUND:-hello}"
+    local group="${BARK_GROUP:-Dockcheck}"
+    local icon_url="${BARK_ICON_URL:-https://raw.githubusercontent.com/mag37/dockcheck/main/logo.png}"
+    
+
+    local title="${MessageTitle%.}"
+    local newline=$'\n'
+    local formatted_body="## $title${newline}${newline}---${newline}${newline}$MessageBody"
+
+    local json_payload=$( "$jqbin" -n \
+        --arg title "$title" \
+        --arg body "$formatted_body" \
+        --arg group "$group" \
+        --arg sound "$sound" \
+        --arg icon "$icon_url" \
+        '{
+            "title": $title,
+            "markdown": $body,
+            "group": $group,
+            "sound": $sound,
+            "icon": $icon,
+        }' )
+
+
+    if curl -s -f -X POST "https://api.day.app/$BARK_KEY" \
+        -H "Content-Type: application/json; charset=utf-8" \
+        -d "$json_payload" > /dev/null 2>&1; then
+        echo "Bark notification sent successfully (Markdown): $title"
+    fi
+}
\ No newline at end of file

From 1584f23d330c6181263b3c17f789df63b3d29b10 Mon Sep 17 00:00:00 2001
From: smoochy <sm00chy2k@gmail.com>
Date: Wed, 28 Jan 2026 21:39:51 +0100
Subject: [PATCH 17/21] - Adjusted description of "-r" parameter - Adjusted
 order of parameters between dockcheck.sh and readme - Added missing parameter
 values from readme into dockcheck.sh

---
 README.md      | 2 +-
 default.config | 2 +-
 dockcheck.sh   | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 1d1e660..0f93af5 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@ Options:
 -M     Prints custom releasenote urls as markdown (requires template support).
 -n     No updates, only checking availability.
 -p     Auto-Prune dangling images after update.
--r     Allow checking for updates/updating images for docker run containers. Won't update the container.
+-r     Allow checking/updating images created by `docker run`, containers need to be recreated manually.
 -R     Skip container recreation after pulling images.
 -s     Include stopped containers in the check. (Logic: docker ps -a).
 -t N   Set a timeout (in seconds) per container for registry checkups, 10 is default.
diff --git a/default.config b/default.config
index 43baea6..9920947 100644
--- a/default.config
+++ b/default.config
@@ -16,7 +16,7 @@
 #DaysOld="5"                # Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower.
 #DisplaySourcedFiles=false  # Display what files are being sourced/used
 #DontUpdate=true            # No updates; only checking availability without interaction.
-#DRunUp=true                # Allows for checking containers, which had been created using 'docker run' and don't use docker compose. Won't update the containers.
+#DRunUp=true                # Allow checking/updating images created by `docker run`, containers need to be recreated manually.
 #Exclude="one,two"          # Exclude containers, separated by comma.
 #ForceRestartStacks=true    # Force stop+start stack after update. Caution: restarts once for every updated container within stack.
 #MaxAsync=10                # Set max asynchronous subprocesses, 1 default, 0 to disable.
diff --git a/dockcheck.sh b/dockcheck.sh
index 906ed0d..7115571 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -36,7 +36,7 @@ Help() {
   echo "-a|y   Automatic updates, without interaction."
   echo "-b N   Enable image backups and sets number of days to keep from pruning."
   echo "-B     List currently backed up images, then exit."
-  echo "-c     Exports metrics as prom file for the prometheus node_exporter. Provide the collector textfile directory."
+  echo "-c D   Exports metrics as prom file for the prometheus node_exporter. Provide the collector textfile directory."
   echo "-d N   Only update to new images that are N+ days old. Lists too recent with +prefix and age. 2xSlower."
   echo "-e X   Exclude containers, separated by comma."
   echo "-f     Force stop+start stack after update. Caution: restarts once for every updated container within stack."
@@ -49,10 +49,10 @@ Help() {
   echo "-M     Prints custom releasenote urls as markdown (requires template support)."
   echo "-n     No updates; only checking availability without interaction."
   echo "-p     Auto-prune dangling images after update."
+  echo "-r     Allow checking/updating images created by `docker run`, containers need to be recreated manually."
   echo "-R     Skip container recreation after pulling images."
-  echo "-r     Allow checking for updates/updating images for docker run containers. Won't update the container."
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
-  echo "-t     Set a timeout (in seconds) per container for registry checkups, 10 is default."
+  echo "-t N   Set a timeout (in seconds) per container for registry checkups, 10 is default."
   echo "-u     Allow automatic self updates - caution as this will pull new code and autorun it."
   echo "-v     Prints current version."
   echo "-x N   Set max asynchronous subprocesses, 1 default, 0 to disable, 32+ tested."

From 6e3b7ee419241110187ba63a5aaa635b2fabc1f9 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 29 Jan 2026 09:42:33 +0100
Subject: [PATCH 18/21] Added Bark to README and minor cleanups

---
 README.md      | 14 ++++++++------
 default.config | 18 ++++++++++--------
 2 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index 0f93af5..9810726 100644
--- a/README.md
+++ b/README.md
@@ -164,6 +164,7 @@ you wish to enable, but there is no harm in having all of them present.
 ├── notify_templates/
 │   ├── notify_DSM.sh
 │   ├── notify_apprise.sh
+│   ├── notify_bark.sh
 │   ├── notify_discord.sh
 │   ├── notify_generic.sh
 │   ├── notify_gotify.sh
@@ -204,20 +205,21 @@ The actual snooze duration will be 60 seconds less than `SNOOZE_SECONDS` to acco
 
 #### Current notify templates
 
-- Synology [DSM](https://www.synology.com/en-global/dsm)
-- Email with [mSMTP](https://wiki.debian.org/msmtp) (or deprecated alternative [sSMTP](https://wiki.debian.org/sSMTP))
 - Apprise (with it's [multitude](https://github.com/caronc/apprise#supported-notifications) of notifications)
   - both native [caronc/apprise](https://github.com/caronc/apprise) and the standalone [linuxserver/docker-apprise-api](https://github.com/linuxserver/docker-apprise-api)
   - Read the [QuickStart](extras/apprise_quickstart.md)
-- [ntfy](https://ntfy.sh/) - HTTP-based pub-sub notifications.
+- [Bark](https://bark.day.app/) - iOS Push notifications.
+- [Discord](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks) - Discord webhooks.
+- [DSM](https://www.synology.com/en-global/dsm) - Synology.
 - [Gotify](https://gotify.net/) - a simple server for sending and receiving messages.
 - [Home Assistant](https://www.home-assistant.io/integrations/notify/) - Connection to the notify [integrations](https://www.home-assistant.io/integrations/#notifications).
-- [Pushbullet](https://www.pushbullet.com/) - connecting different devices with cross-platform features.
-- [Telegram](https://telegram.org/) - Telegram chat API.
 - [Matrix-Synapse](https://github.com/element-hq/synapse) - [Matrix](https://matrix.org/), open, secure, decentralised communication.
+- [ntfy](https://ntfy.sh/) - HTTP-based pub-sub notifications.
+- [Pushbullet](https://www.pushbullet.com/) - connecting different devices with cross-platform features.
 - [Pushover](https://pushover.net/) - Simple Notifications (to your phone, wearables, desktops)
-- [Discord](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks) - Discord webhooks.
 - [Slack](https://api.slack.com/tutorials/tracks/posting-messages-with-curl) - Slack curl api
+- SMTP Email with [mSMTP](https://wiki.debian.org/msmtp) (or deprecated alternative [sSMTP](https://wiki.debian.org/sSMTP))
+- [Telegram](https://telegram.org/) - Telegram chat API.
 
 Further additions are welcome - suggestions or PRs!
 <sub><sup>Initiated and first contributed by [yoyoma2](https://github.com/yoyoma2).</sup></sub>
diff --git a/default.config b/default.config
index 330d45f..f9076a2 100644
--- a/default.config
+++ b/default.config
@@ -1,4 +1,4 @@
-### Custom user variables
+##### Custom user variables #####
 ## Copy this file to "dockcheck.config" to make it active
 ## Can be placed in ~/.config/ or alongside dockcheck.sh
 ##
@@ -30,11 +30,12 @@
 #Stopped="-a"               # Include stopped containers in the check. (Logic: docker ps -a).
 #Timeout=10                 # Set a timeout (in seconds) per container for registry checkups.
 
-### Notify settings
+##### NOTIFY SETTINGS BELOW #####
+##
 ## All commented values are examples only. Modify as needed.
 ##
 ## Uncomment the line below and specify the notification channels you wish to enable in a space separated string
-# NOTIFY_CHANNELS="apprise discord DSM file generic HA gotify matrix ntfy pushbullet pushover slack smtp telegram bark file"
+# NOTIFY_CHANNELS="apprise bark discord DSM file generic gotify HA matrix ntfy pushbullet pushover slack smtp telegram"
 #
 ## Uncomment the line below and specify the number of seconds to delay notifications to enable snooze
 # SNOOZE_SECONDS=86400
@@ -51,11 +52,15 @@
 #                 tgram://{bot_token}/{chat_id}/'
 # APPRISE_URL="http://apprise.mydomain.tld:1234/notify/apprise"
 #
+# BARK_KEY="key-value"
+#
 # DISCORD_WEBHOOK_URL="https://discord.com/api/webhooks/<token string>"
 #
 # DSM_SENDMAILTO="me@mydomain.com"
 # DSM_SUBJECTTAG="Email Subject Prefix"
 #
+# FILE_PATH="${ScriptWorkDir}/updates_available.txt"
+#
 # GOTIFY_DOMAIN="https://gotify.domain.tld"
 # GOTIFY_TOKEN="token-value"
 #
@@ -70,7 +75,8 @@
 ## https://ntfy.sh or your custom domain with https:// and no trailing /
 # NTFY_DOMAIN="https://ntfy.sh"
 # NTFY_TOPIC_NAME="YourUniqueTopicName"
-# NTFY_AUTH=""   # set to either format -> "user:password" OR ":tk_12345678". If using tokens, don't forget the ":"
+## Auth method, set to either format -> "user:password" OR ":tk_12345678". If using tokens, don't forget the ":"
+# NTFY_AUTH=""
 #
 # PUSHBULLET_URL="https://api.pushbullet.com/v2/pushes"
 # PUSHBULLET_TOKEN="token-value"
@@ -89,7 +95,3 @@
 # TELEGRAM_CHAT_ID="mychatid"
 # TELEGRAM_TOKEN="token-value"
 # TELEGRAM_TOPIC_ID="0"
-#
-# BARK_KEY=""
-#
-# FILE_PATH="${ScriptWorkDir}/updates_available.txt"

From 6c969c91695ff6cab90e4c43ebcd42f9168acbe8 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 29 Jan 2026 09:59:45 +0100
Subject: [PATCH 19/21] mend

---
 dockcheck.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockcheck.sh b/dockcheck.sh
index 7115571..aa895bb 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -49,7 +49,7 @@ Help() {
   echo "-M     Prints custom releasenote urls as markdown (requires template support)."
   echo "-n     No updates; only checking availability without interaction."
   echo "-p     Auto-prune dangling images after update."
-  echo "-r     Allow checking/updating images created by `docker run`, containers need to be recreated manually."
+  echo "-r     Allow checking/updating images created by 'docker run', containers need to be recreated manually."
   echo "-R     Skip container recreation after pulling images."
   echo "-s     Include stopped containers in the check. (Logic: docker ps -a)."
   echo "-t N   Set a timeout (in seconds) per container for registry checkups, 10 is default."

From fc0b1a2505942ce51582ce384d684f47df9f22c9 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 29 Jan 2026 13:06:07 +0100
Subject: [PATCH 20/21] Versionbump, changenotes

---
 README.md    | 17 ++++++++---------
 dockcheck.sh |  4 ++--
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 9810726..418b50b 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,14 @@ ___
 
 ## Changelog
 
+- **v0.7.6**:
+  - New:
+    - Added Bark notify-template.
+  - Fixes:
+    - Sanitized message for Matrix notification.
+    - Fixed hostname fallback for notifications.
+    - Clenaed up README.md some.
+    - Sorted and clarified `default.config` - migrate your settings manually (optional).
 - **v0.7.5**:
   - Added new option **BackupForDays**; `-b N` and `-B`:
     - Backup an image before pulling a new version for easy rollback in case of breakage.
@@ -37,15 +45,6 @@ ___
   - Fixes:
     - Bugfix for *value too great* error due to leading zeroes - solved with base10 conversion.
     - Clean up of some legacy readme sections.
-- **v0.7.3**: Bugfix - unquoted variable in printf list caused occasional issues.
-- **v0.7.2**:
-  - Label rework:
-    - Moved up label logic to work globally on the current run.
-    - Only iterating on labeled containers when used with `-l` option, not listing others.
-    - Clarified messaging and readme/help texts.
-  - List reformatting for "available updates" numbering to easier highlight and copy:
-    - Padded with zero, changed `)` to `-`, example: `02 - homer`
-    - Can be selected by writing `2,3,4` or `02,03,04`.
 
 ___
 
diff --git a/dockcheck.sh b/dockcheck.sh
index aa895bb..24e7c62 100755
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-VERSION="v0.7.5"
-# ChangeNotes: New option -b N to backup image before pulling for easy rollback.
+VERSION="v0.7.6"
+# ChangeNotes: Bugfixes and sanitation. Cleanup of default.config - migrate settings manually (optional).
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 

From 7785e869d3ca5e2b9fd1d6e84ec80c18fee668fa Mon Sep 17 00:00:00 2001
From: singularity0821 <17620644+singularity0821@users.noreply.github.com>
Date: Fri, 6 Feb 2026 18:07:58 +0100
Subject: [PATCH 21/21] Add additional URLs to urls.list (#263)

* Sanitize message for Matrix notifications

* Use variable for jq and increment version of Matrix script

* Add additional URLs to urls.list

---------

Co-authored-by: martin <martin@meissnitzer.dev>
---
 notify_templates/urls.list | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/notify_templates/urls.list b/notify_templates/urls.list
index aeba433..e69838a 100644
--- a/notify_templates/urls.list
+++ b/notify_templates/urls.list
@@ -3,33 +3,47 @@
 # This is a list of container names and releasenote urls, separated by space.
 
 actual_server https://actualbudget.org/blog
+adguardhome https://github.com/AdguardTeam/AdGuardHome/releases
 apprise-api https://github.com/linuxserver/docker-apprise-api/releases
 audiobookshelf https://github.com/advplyr/audiobookshelf/releases
+authentik_server https://github.com/goauthentik/authentik/releases
+authentik_worker https://github.com/goauthentik/authentik/releases
+barassistant https://github.com/karlomikus/bar-assistant//releases
+barassistant_api https://github.com/karlomikus/bar-assistant/releases
 bazarr https://github.com/morpheus65535/bazarr/releases
 bazarr-ls https://github.com/linuxserver/docker-bazarr/releases
 beszel https://github.com/henrygd/beszel/releases
+booklore https://github.com/booklore-app/BookLore/releases
 bookstack https://github.com/BookStackApp/BookStack/releases
 bruceforce-vaultwarden-backup https://github.com/Bruceforce/vaultwarden-backup/blob/main/CHANGELOG.md
 caddy https://github.com/caddyserver/caddy/releases
 calibre https://github.com/linuxserver/docker-calibre/releases
 calibre-web https://github.com/linuxserver/docker-calibre-web/releases
 cleanuperr https://github.com/flmorg/cleanuperr/releases
+collabora https://github.com/CollaboraOnline/online/releases
 cross-seed https://github.com/cross-seed/cross-seed/releases
 crowdsec https://github.com/crowdsecurity/crowdsec/releases
 cup https://github.com/sergi0g/cup/releases
+databasus https://github.com/databasus/databasus/releases
 dockge https://github.com/louislam/dockge/releases
 dozzle https://github.com/amir20/dozzle/releases
+esphome https://github.com/esphome/esphome/releases
+feishin https://github.com/jeffvli/feishin/releases
 flatnotes https://github.com/dullage/flatnotes/releases
 forgejo https://codeberg.org/forgejo/forgejo/releases
 fressrss https://github.com/FreshRSS/FreshRSS/releases
+frigate https://github.com/blakeblackshear/frigate/releases
 gerbil https://github.com/fosrl/gerbil/releases
+glances https://github.com/nicolargo/glances/releases
 gluetun https://github.com/qdm12/gluetun/releases
 go2rtc https://github.com/AlexxIT/go2rtc/releases
+godoxy https://github.com/yusing/godoxy/releases
 gotify https://github.com/gotify/server/releases
 hbbr https://github.com/rustdesk/rustdesk-server/releases
 hbbs https://github.com/rustdesk/rustdesk-server/releases
 homarr https://github.com/homarr-labs/homarr/releases
 home-assistant https://github.com/home-assistant/core/releases/
+homepage https://github.com/gethomepage/homepage/releases
 homer https://github.com/bastienwirtz/homer/releases
 immich_machine_learning https://github.com/immich-app/immich/releases
 immich_postgres https://github.com/tensorchord/VectorChord/releases
@@ -38,6 +52,7 @@ immich_server https://github.com/immich-app/immich/releases
 jellyfin https://github.com/jellyfin/jellyfin/releases
 jellyseerr https://github.com/Fallenbagel/jellyseerr/releases
 jellystat https://github.com/CyferShepard/Jellystat/releases
+karakeep https://github.com/karakeep-app/karakeep/releases
 librespeed https://github.com/librespeed/speedtest/releases
 lidarr https://github.com/Lidarr/Lidarr/releases/
 lidarr-ls https://github.com/linuxserver/docker-lidarr/releases
@@ -47,9 +62,12 @@ mealie https://github.com/mealie-recipes/mealie/releases
 meilisearch https://github.com/meilisearch/meilisearch/releases
 monica https://github.com/monicahq/monica/releases
 mqtt https://github.com/eclipse/mosquitto/tags
+navidrome https://github.com/navidrome/navidrome/releases
 newt https://github.com/fosrl/newt/releases
 nextcloud-aio-mastercontainer https://github.com/nextcloud/all-in-one/releases
 nginx https://github.com/docker-library/official-images/blob/master/library/nginx
+opencloud https://github.com/opencloud-eu/opencloud/releases
+outline https://github.com/outline/outline/releases
 owncast https://github.com/owncast/owncast/releases
 pangolin https://github.com/fosrl/pangolin/releases
 prowlarr https://github.com/Prowlarr/Prowlarr/releases
@@ -63,18 +81,25 @@ readeck https://codeberg.org/readeck/readeck/releases
 recyclarr https://github.com/recyclarr/recyclarr/releases
 roundcubemail https://github.com/roundcube/roundcubemail/releases
 sabnzbd https://github.com/linuxserver/docker-sabnzbd/releases
+scanopy https://github.com/scanopy/scanopy/releases
 scrutiny https://github.com/AnalogJ/scrutiny/releases
 sftpgo https://github.com/drakkan/sftpgo/releases
 slskd https://github.com/slskd/slskd/releases
 snappymail https://github.com/the-djmaze/snappymail/releases
+stirling-pdf https://github.com/Stirling-Tools/Stirling-PDF/releases
 sonarr https://github.com/Sonarr/Sonarr/releases/
 sonarr-ls https://github.com/linuxserver/docker-sonarr/releases
+synapse https://github.com/element-hq/synapse/releases
 syncthing https://github.com/syncthing/syncthing/releases
 tailscale https://github.com/tailscale/tailscale/releases
 tautulli https://github.com/Tautulli/Tautulli/releases
 thelounge https://github.com/thelounge/thelounge/releases
 traefik https://github.com/traefik/traefik/releases
+uptime-kuma https://github.com/louislam/uptime-kuma/releases
 vaultwarden-server https://github.com/dani-garcia/vaultwarden/releases
+vikunja https://github.com/go-vikunja/vikunja/releases
+wallos https://github.com/ellite/Wallos/releases
 watchtower https://github.com/beatkind/watchtower/releases
+wopiserver https://github.com/cs3org/wopiserver/releases
 wud https://github.com/getwud/wud/releases
 zigbee2mqtt https://github.com/Koenkk/zigbee2mqtt/releases