From fef472d6181055b7c947f7412d3e783df5ffa736 Mon Sep 17 00:00:00 2001
From: mag37 <robin.ivehult@gmail.com>
Date: Thu, 19 Jan 2023 09:58:06 +0100
Subject: [PATCH] Update dc_function.sh

Added the possibility to check multiple containers by name-wildcarding. Eg `dockcheck ng` would check all containers named anything with `ng` like nginx_local, reverse_nginx
---
 dc_function.sh | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/dc_function.sh b/dc_function.sh
index da25b95..62ea6ad 100644
--- a/dc_function.sh
+++ b/dc_function.sh
@@ -14,9 +14,12 @@ dockcheck () {
     echo "No container name given, here's the list of currently running containers:" 
     docker ps --format '{{.Names}}'
   else
-    RepoUrl=$(docker inspect "$1" --format='{{.Config.Image}}')
-    LocalHash=$(docker image inspect "$RepoUrl" --format '{{.RepoDigests}}' | sed -e 's/.*sha256/sha256/' -e 's/\]$//')
-    RegHash=$(regctl image digest --list "$RepoUrl")
-    if [[ "$LocalHash" != "$RegHash" ]] ; then printf "Updates available.\n" ; else printf "Already latest.\n" ; fi
+    for i in $(docker ps --filter "name=$1" --format '{{.Names}}')
+    do
+      RepoUrl=$(docker inspect $i --format='{{.Config.Image}}')
+      LocalHash=$(docker image inspect $RepoUrl --format '{{.RepoDigests}}' | sed -e 's/.*sha256/sha256/' -e 's/\]$//')
+      RegHash=$(regctl image digest --list $RepoUrl)
+      if [[ "$LocalHash" != "$RegHash" ]] ; then printf "Updates available for $i.\n" ; else printf "$i is already latest.\n" ; fi
+    done
   fi
 }