List containers using image found as outdated

lib/cntfy.nu

@@ -12,6 +12,11 @@ export def publish [
 ] {
   let cfg = ( config read_file cntfy )
 
+  if ( $env.NTFY_LIMIT? == 0) {
+    sleep 5sec
+    let-env NTFY_LIMIT = 3
+  }
+
   let request_body = ({
     topic: $topic
     title: $title

podman-update-check

@@ -49,9 +49,25 @@ export def needs_update [] {
 
 def print_needs_update [ntfy: bool] {
   let data = $in
-  print $"Image `($data.Name)` needs to be updated."
+  let containers = ( containers_for_image $data.Name )
+  print $"Image `($data.Name)` needs to be updated. Used by ($containers | str join ', ')"
 
   if $ntfy {
-      cntfy publish --tags [ podman $data.Name ] --priority 4 --title $"($data.Name) outdated" "updates" $"Container ($data.Name) needs to be updated."
+    (
+      cntfy publish 
+        --tags [ podman $data.Name ] 
+        --priority 4 
+        --title $"($data.Name) outdated" 
+        "updates" $"Container ($data.Name) needs to be updated. Used by ($data.Containers) containers. Used by: ( $containers | str join '\n' )"
+    )
+  }
 }
+
+def containers_for_image [image: string] {
+  ( podman container ls --all --format json 
+    | from json 
+    | where Image == $image 
+    | insert Name {|$it| $it.Names? | get 0 } 
+    | get Name
+  )
 }