From da968c3b050a0db552645f7b56e82fd2f59d39b7 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Mon, 23 Jan 2023 14:17:39 +0100
Subject: [PATCH] alt.version: non-compose users

Created a alternative version for non-compose users.
---
 dockcheck_docker-run_ver.sh | 114 ++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 dockcheck_docker-run_ver.sh

diff --git a/dockcheck_docker-run_ver.sh b/dockcheck_docker-run_ver.sh
new file mode 100644
index 0000000..b844b2c
--- /dev/null
+++ b/dockcheck_docker-run_ver.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+
+### DOCKER RUN - VERSION.
+### If running docker compose, use the main version.
+
+# Help Function:
+Help() {
+  echo "Syntax:     dockcheck.sh [OPTION] [part of name to filter]" 
+  echo "Example:    dockcheck.sh -a ng"
+  echo
+  echo "Options:"
+  echo "-h     Print this Help."
+  echo "-a     Automatic updates, without interaction."
+  echo "-n     No updates, only checking availability."
+}
+
+while getopts "anh" options; do
+  case "${options}" in
+    a)
+      UpdYes="yes"
+      ;;
+    n)
+      UpdYes="no"
+      ;;
+    h|*) # help or unknown option:
+      Help
+      exit 0;;
+  esac
+done
+
+### Set $1 back to $1 (ignoring the places held by getops)
+shift "$((OPTIND-1))"
+
+### Set $1 to a variable for later
+SearchName="$1"
+
+### Check if required binary exists in PATH or directory:
+if [[ $(builtin type -P "regctl") ]]; then 
+  regbin="regctl"
+elif [[ -f "./regctl" ]]; then
+  regbin="./regctl"
+else
+  printf "Required dependency 'regctl' missing, do you want it downloaded? y/[n]\n"
+  read GetDep
+  if [ "$GetDep" != "${GetDep#[Yy]}" ]; then
+    ### Check arch:
+    case "$(uname --machine)" in
+      x86_64|amd64)
+        architecture="amd64";;
+      arm64|aarch64)
+        architecture="arm64";;
+      *) echo "Architecture not supported, exiting." ; exit ;;
+    esac
+    curl -L https://github.com/regclient/regclient/releases/latest/download/regctl-linux-$architecture >./regctl
+    chmod 755 ./regctl
+    regbin="./regctl"
+  else
+    printf "Dependency missing, quitting.\n"
+    exit
+  fi
+fi
+
+### Check the image-hash of every running container VS the registry
+for i in $(docker ps --filter "name=$SearchName" --format '{{.Names}}') 
+do
+printf ". "
+  RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
+  LocalHash=$(docker image inspect "$RepoUrl" --format '{{.RepoDigests}}')
+  RegHash=$($regbin image digest --list "$RepoUrl" 2>/dev/null)
+  # Check if regtcl produces errors - add to GotErrors if so.
+  if [ $? -eq 0 ] ; then
+    if [[ "$LocalHash" = *"$RegHash"* ]] ; then
+      NoUpdates+=("$i")
+    else
+      GotUpdates+=("$i")
+    fi
+  else
+    GotErrors+=("$i")
+  fi
+done
+
+### List what containers got updates or not
+if [ -n "$NoUpdates" ] ; then
+  printf "\n\033[32;1mContainers on latest version:\033[0m\n"
+  printf "%s\n" "${NoUpdates[@]}"
+fi
+if [ -n "$GotUpdates" ] ; then
+  printf "\n\033[31;1mContainers with updates available:\033[0m\n"
+  printf "%s\n" "${GotUpdates[@]}"
+fi
+if [ -n "$GotErrors" ] ; then
+  printf "\n\033[33;1mContainers with errors, wont get updated:\033[0m\n"
+  printf "%s\n" "${GotErrors[@]}"
+fi
+
+### Optionally get updates if there's any 
+if [ -n "$GotUpdates" ] ; then
+  if [ -z "$UpdYes" ] ; then
+  printf "\n\033[36;1mDo you want to update? y/[n]\033[0m\n"
+  read UpdYes
+  fi
+    if [ "$UpdYes" != "${UpdYes#[Yy]}" ] ; then
+      for i in "${GotUpdates[@]}"
+      do 
+        ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
+        docker pull $ContImage
+        docker restart $i
+      done
+    else
+      printf "\nNo updates installed, exiting.\n"
+    fi
+else
+  printf "\nNo updates available, exiting.\n"
+fi