versionbump

info: Permission checks, now compose up on whole stack, -M markdown option added.

.gitignore

@@ -1,5 +1,7 @@
 # ignore users custom notify.sh
 /notify.sh
 /urls.list
+# ignore user config
+/dockcheck.config
 # ignore the auto-installed regctl
 regctl

README.md

@@ -11,25 +11,33 @@
 </p>
 
 <h2 align="center">CLI tool to automate docker image updates or notifying when updates are available.</h2>
-<h3 align="center">Features:</h3>
+<h3 align="center">selective updates, exclude containers, custom labels, notification plugins, prune when done etc.</h3>
-<h3 align="center">selective updates, exclude containers, custom labels, notification plugins, prune when done and more.</h3>
-
-<h4 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
 
 <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>
 
+<h5 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
+
 ___
 ## :bell: Changelog
 
-- **v0.5.8.0**: Added version checks to all templates and a notification if a new template is released.
+- **v0.6.3**: Some fixes and changes:
-- **v0.5.7.0**: Rewritten templates - now with a function to notify when there's a new Dockcheck release.
+    - Stops when a container recreation (compose up -d) fails, also `up`s the whole stack now.
-    - Manually migrate your current `notify.sh` settings to a new template for new functionality.
+    - `-M`, Markdown format url-releasenotes in notification (requires template rework, look at gotify!)
-- **v0.5.6.1**: Async xargs hotfix - due to errors `failed to request manifest head ... context canceled`
+    - Added [addons/DSM/README.md](./addons/DSM/README.md) added for more info Synology DSM info.
-    - Defaulted subprocess to 1 with `MaxAsync=1`, increase to find a stable value in your environment.
+    - Permission checks - graceful exit if no docker permissions + checking if root for pkg-manager.
-    - Added `-x N` option to pass `MaxAsync` value at runtime.
+- **v0.6.2**: Style and colour changes, prometheus hotfix, new options:
-    - To disable xargs `-P` flag (max processes) all together, set `MaxAsync` to 0.
+    - `-u`, Allow auto self update of dockcheck.sh
-- **v0.5.6.0**: Heavily improved performance due to async checking for updates.
+    - `-I`, Print container release URLs in the CLI "choose update" list. (please contribute to `urls.list`)
-- **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
+    - Extras: `-m`, Monochrome mode now hides the progress bar.
+- **v0.6.1**: Hotfixes: (try removing set+shopt+shopt if debugging more errors)
+    - xargs/pipefail, removed `-set -e` bash option for now.
+    - unbound variables fixed (hopefully)
+    - dependency installer from pkgmanager rewritten
+- **v0.6.0**: Refactored a lot of code, cleaner logic and syntax, safer variables.
+    - Safer bash options with `set -euo pipefail`, `shopt -s nullglob` and `failglob`.
+    - Added a `default.conf` for user settings - persistent through updates.
+    - Added `notify_slack.sh` template for slack curl api.
+
 ___
 
 
@@ -39,9 +47,9 @@ ___
 ```
 $ ./dockcheck.sh -h
 Syntax:     dockcheck.sh [OPTION] [part of name to filter]
-Example:    dockcheck.sh -y -d 10 -e nextcloud,heimdall
+Example:    dockcheck.sh -y -x 10 -d 10 -e nextcloud,heimdall
 
-Options:"
+Options:
 -a|y   Automatic updates, without interaction.
 -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.
@@ -49,14 +57,18 @@ Options:"
 -f     Force stack restart after update. Caution: restarts once for every updated container within stack.
 -h     Print this Help.
 -i     Inform - send a preconfigured notification.
+-I     Prints custom releasenote urls alongside each container with updates (requires urls.list).
 -l     Only update if label is set. See readme.
--m     Monochrome mode, no printf color codes.
+-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.
 -p     Auto-Prune dangling images after update.
 -r     Allow updating images for docker run, wont update the container.
 -s     Include stopped containers in the check. (Logic: docker ps -a).
--t     Set a timeout (in seconds) per container for registry checkups, 10 is default.
+-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.
 -v     Prints current version.
+-x N   Set max asynchronous subprocesses, 1 default, 0 to disable, 32+ tested.
 ```
 
 ### Basic example:
@@ -107,11 +119,15 @@ wget -O ~/.local/bin/dockcheck.sh "https://raw.githubusercontent.com/mag37/dockc
 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.
 
+## :handbag: 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`.
 
 ## :loudspeaker: Notifications
-Trigger with the `-i` flag.  
+Trigger with the `-i` flag if `notify.sh` is present and configured.  
+Will send a list of containers with updates available and a notification when `dockcheck.sh` itself has an update.  
 Run it scheduled with `-ni` to only get notified when there's updates available!  
-Will also send a notification when `dockcheck.sh` itself has an update.
 
 Use a `notify_X.sh` template file from the **notify_templates** directory, copy it to `notify.sh` alongside the script, modify it to your needs! (notify.sh is added to .gitignore)  
 **Current templates:**
@@ -127,13 +143,18 @@ Use a `notify_X.sh` template file from the **notify_templates** directory, copy
 - [Matrix-Synapse](https://github.com/element-hq/synapse) - [Matrix](https://matrix.org/), open, secure, decentralised communication.
 - [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
 
 Further additions are welcome - suggestions or PR!  
 <sub><sup>Initiated and first contributed by [yoyoma2](https://github.com/yoyoma2).</sup></sub>  
 
-### :date: Release notes addon to Notifications
+### :date: 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.  
+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.  
+To also list the URL's in the CLI output (choose containers list) use the `-I` option or variable config.  
+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:
 ```
 Containers on hostname with updates available:
@@ -149,17 +170,36 @@ Pass `-x N` where N is number of subprocesses allowed, experiment in your enviro
 Change the default value by editing the `MaxAsync=N` variable in `dockcheck.sh`. To disable the subprocess function set `MaxAsync=0`.
 
 
-## :chart_with_upwards_trend: Prometheus and node_exporter
+## :chart_with_upwards_trend: Extra plugins and tools:
+
+### :small_orange_diamond: 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).
+
+### :small_orange_diamond: 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:
 ```
 dockcheck.sh -c /path/to/exporter/directory
 ```
 
-See the [README.md](./addons/prometheus/README.md) for more detailed information on how to set it up!
+See the [README.md](./addons/prometheus/README.md) for more detailed information on how to set it up!  
-
 <sub><sup>Contributed by [tdralle](https://github.com/tdralle).</sup></sub>  
 
+### :small_orange_diamond: Zabbix config to monitor docker image updates
+If you already use Zabbix - this config will Shows number 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)
+
+### :small_orange_diamond: 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).
+
+### :small_orange_diamond: 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).
+
 ## :bookmark: Labels
 Optionally add labels to compose-files. Currently these are the usable labels:
 ```
@@ -228,6 +268,7 @@ dockcheck is created and released under the [GNU GPL v3.0](https://www.gnu.org/l
 ## :heartpulse: Sponsorlist
 
 - [avegy](https://github.com/avegy)
+- [eichhorn](https://github.com/eichhorn)
 
 ___
 

addons/DSM/README.md

@@ -0,0 +1,35 @@
+## Using Dockcheck in DSM
+Dockcheck cannot directly update containers managed in the Container Manager GUI, but it can still be used to notify you of containers with updates available. There are two ways to be notified, each with their own caveats:
+
+1. Enabling email notifications within the Task Scheduler (_step 6i below_) will send an email that includes the entire script as run. This will not include the `urls.list` links to release notes, but it will show a full list of containers checked, up to date, and needing updates (following the args included in the scheduled task).
+2. The [DSM notification template](https://github.com/mag37/dockcheck/blob/main/notify_templates/notify_DSM.sh) will enable Dockcheck to directly send an email when using the `-i` flag. This is most useful when paired with an accurate [urls.list](https://github.com/mag37/dockcheck/blob/next063/notify_templates/urls.list) file, and results in a neat succinct email notification of only containers to be updated.
+
+This is a user preference, and both notifications are not necessary. However, regardless of the notification method, it is necessary to set up a scheduled task to run Dockcheck at a set interval (otherwise it will only run when manually triggered).
+
+
+## Automate Dockcheck with DSM Task Scheduler:
+
+1. Open Control Panel and navigate to Task Scheduler
+2. Create a Scheduled Task > User-defined script
+3. Task Name: Dockcheck
+4. User: root
+5. Schedule: _User Preference_
+6. Task Settings:
+    1. ✔  Send run details by email (include preferred email) _This is the optional step as described above)_
+    2. User-defined script: `export HOME=/root && cd /path/to/dockcheck && ./dockcheck.sh -n -i -I ` _or other custom args_
+8. Click OK, accept warning message
+
+
+## Set up the DSM Notification template
+
+Copy the [dockcheck/notify_templates/notify_DSM.sh](https://github.com/mag37/dockcheck/blob/main/notify_templates/notify_DSM.sh) to the same directory as where you keep `dockcheck.sh`.  
+Use as is (uses your default notification email setting) or edit and override manually.
+
+![](./dsm1.png)
+
+![](./dsm2.png)
+
+![](./dsm3.png)
+
+
+Made with much help and contribution from [@firmlyundecided](https://github.com/firmlyundecided) and [@yoyoma2](https://github.com/yoyoma2).

default.config

@@ -0,0 +1,24 @@
+### Custom user variables
+# Copy this file to "dockcheck.config" to make it active
+# Can be placed in ~/.config/ or alongside dockcheck.sh
+#
+# 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.
+#ForceRestartStacks=true    # Force stack restart after update. Caution.
+#DRunUp=true    # Allow updating images for docker run, wont update the container.
+#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

dockcheck.sh

@@ -1,26 +1,33 @@
 #!/usr/bin/env bash
-VERSION="v0.5.8.0"
+VERSION="v0.6.3"
-### ChangeNotes: Added version checks to all templates and a notification if a new template is released.
+### ChangeNotes: Permission checks, now compose up on whole stack, -M markdown option added.
 Github="https://github.com/mag37/dockcheck"
 RawUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
 
+set -uo pipefail
+shopt -s nullglob
+shopt -s failglob
+
 # Variables for self updating
 ScriptArgs=( "$@" )
 ScriptPath="$(readlink -f "$0")"
 ScriptWorkDir="$(dirname "$ScriptPath")"
 
 # Check if there's a new release of the script
-LatestRelease="$(curl -s -r 0-50 $RawUrl | sed -n "/VERSION/s/VERSION=//p" | tr -d '"')"
+LatestRelease="$(curl -s -r 0-50 "$RawUrl" | sed -n "/VERSION/s/VERSION=//p" | tr -d '"')"
-LatestChanges="$(curl -s -r 0-200 $RawUrl | sed -n "/ChangeNotes/s/# ChangeNotes: //p")"
+LatestChanges="$(curl -s -r 0-200 "$RawUrl" | sed -n "/ChangeNotes/s/# ChangeNotes: //p")"
 
 # User customizable defaults
-MaxAsync=1
+if [[ -s "${HOME}/.config/dockcheck.config" ]]; then
-Timeout=10
+  source "${HOME}/.config/dockcheck.config"
+elif [[ -s "${ScriptWorkDir}/dockcheck.config" ]]; then
+  source "${ScriptWorkDir}/dockcheck.config"
+fi
 
 # Help Function
 Help() {
   echo "Syntax:     dockcheck.sh [OPTION] [part of name to filter]"
-  echo "Example:    dockcheck.sh -y -d 10 -e nextcloud,heimdall"
+  echo "Example:    dockcheck.sh -y -x 10 -d 10 -e nextcloud,heimdall"
   echo
   echo "Options:"
   echo "-a|y   Automatic updates, without interaction."
@@ -30,20 +37,50 @@ Help() {
   echo "-f     Force stack restart after update. Caution: restarts once for every updated container within stack."
   echo "-h     Print this Help."
   echo "-i     Inform - send a preconfigured notification."
+  echo "-I     Prints custom releasenote urls alongside each container with updates (requires urls.list)."
   echo "-l     Only update if label is set. See readme."
-  echo "-m     Monochrome mode, no printf color codes."
+  echo "-m     Monochrome mode, no printf colour codes and hides progress bar."
-  echo "-n     No updates; only checking availability."
+  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 updating images for docker run; 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 "-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."
   echo
   echo "Project source: $Github"
 }
 
-# Colors
+# Initialise variables
+Timeout=${Timeout:=10}
+MaxAsync=${MaxAsync:=1}
+BarWidth=${BarWidth:=50}
+AutoMode=${AutoMode:=false}
+DontUpdate=${DontUpdate:=false}
+AutoPrune=${AutoPrune:=false}
+AutoSelfUpdate=${AutoSelfUpdate:=false}
+OnlyLabel=${OnlyLabel:=false}
+Notify=${Notify:=false}
+ForceRestartStacks=${ForceRestartStacks:=false}
+DRunUp=${DRunUp:=false}
+MonoMode=${MonoMode:=false}
+PrintReleaseURL=${PrintReleaseURL:=false}
+PrintMarkdownURL=${PrintMarkdownURL:=false}
+Stopped=${Stopped:=""}
+CollectorTextFileDirectory=${CollectorTextFileDirectory:-}
+Exclude=${Exclude:-}
+DaysOld=${DaysOld:-}
+Excludes=()
+GotUpdates=()
+NoUpdates=()
+GotErrors=()
+SelectedUpdates=()
+regbin=""
+jqbin=""
+
+# Colours
 c_red="\033[0;31m"
 c_green="\033[0;32m"
 c_yellow="\033[0;33m"
@@ -51,94 +88,123 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"
 
-Stopped=""
+while getopts "ayfhiIlmMnprsuvc:e:d:t:x:" options; do
-while getopts "aynpfrhlisvmc:e:d:t:x:" options; do
   case "${options}" in
-    a|y) AutoUp="yes" ;;
+    a|y) AutoMode=true ;;
-    c)   CollectorTextFileDirectory="${OPTARG}"
+    c)   CollectorTextFileDirectory="${OPTARG}" ;;
-         if ! [[ -d  $CollectorTextFileDirectory ]] ; then { printf "The directory (%s) does not exist.\n" "${CollectorTextFileDirectory}"  ; exit 2; } fi ;;
+    d)   DaysOld=${OPTARG} ;;
-    n)   AutoUp="no" ;;
-    r)   DRunUp="yes" ;;
-    p)   AutoPrune="yes" ;;
-    l)   OnlyLabel=true ;;
-    f)   ForceRestartStacks=true ;;
-    i)   [ -s "$ScriptWorkDir"/notify.sh ] && { source "$ScriptWorkDir"/notify.sh ; Notify="yes" ; } ;;
     e)   Exclude=${OPTARG} ;;
-    m)   declare c_{red,green,yellow,blue,teal,reset}="" ;;
+    f)   ForceRestartStacks=true ;;
+    i)   Notify=true ;;
+    I)   PrintReleaseURL=true ;;
+    l)   OnlyLabel=true ;;
+    m)   MonoMode=true ;;
+    M)   PrintMarkdownURL=true ;;
+    n)   DontUpdate=true; AutoMode=true;;
+    p)   AutoPrune=true ;;
+    r)   DRunUp=true ;;
     s)   Stopped="-a" ;;
     t)   Timeout="${OPTARG}" ;;
-    v)   printf "%s\n" "$VERSION" ; exit 0 ;;
+    u)   AutoSelfUpdate=true ;;
+    v)   printf "%s\n" "$VERSION"; exit 0 ;;
     x)   MaxAsync=${OPTARG} ;;
-    d)   DaysOld=${OPTARG}
+    h|*) Help; exit 2 ;;
-         if ! [[ $DaysOld =~ ^[0-9]+$ ]] ; then { printf "Days -d argument given (%s) is not a number.\n" "${DaysOld}" ; exit 2 ; } ; fi ;;
-    h|*) Help ; exit 2 ;;
   esac
 done
 shift "$((OPTIND-1))"
 
-# Self-update function
+# Set $1 to a variable for name filtering later
+SearchName="${1:-}"
+
+# Setting up options and sourcing functions
+if [[ "$DontUpdate" == true ]]; then AutoMode=true; fi
+if [[ "$MonoMode" == true ]]; then declare c_{red,green,yellow,blue,teal,reset}=""; fi
+if [[ "$Notify" == true ]]; then
+  if [[ -s "${ScriptWorkDir}/notify.sh" ]]; then
+    source "${ScriptWorkDir}/notify.sh"
+  else Notify=false
+  fi
+fi
+if [[ -n "$Exclude" ]]; then
+  IFS=',' read -ra Excludes <<< "$Exclude"
+  unset IFS
+fi
+if [[ -n "$DaysOld" ]]; then
+  if ! [[ $DaysOld =~ ^[0-9]+$ ]]; then
+    printf "Days -d argument given (%s) is not a number.\n" "$DaysOld"
+    exit 2
+  fi
+fi
+if [[ -n "$CollectorTextFileDirectory" ]]; then
+  if ! [[ -d  $CollectorTextFileDirectory ]]; then
+    printf "The directory (%s) does not exist.\n" "$CollectorTextFileDirectory"
+    exit 2
+  else
+    source "${ScriptWorkDir}/addons/prometheus/prometheus_collector.sh"
+  fi
+fi
+
 self_update_curl() {
   cp "$ScriptPath" "$ScriptPath".bak
-  if [[ $(command -v curl) ]]; then
+  if command -v curl &>/dev/null; then
-    curl -L $RawUrl > "$ScriptPath" ; chmod +x "$ScriptPath"
+    curl -L $RawUrl > "$ScriptPath"; chmod +x "$ScriptPath"
-    printf "\n%s\n" "--- starting over with the updated version ---"
+    printf "\n%b---%b starting over with the updated version %b---%b\n" "$c_yellow" "$c_teal" "$c_yellow" "$c_reset"
     exec "$ScriptPath" "${ScriptArgs[@]}" # run the new script with old arguments
     exit 1 # Exit the old instance
-  elif [[ $(command -v wget) ]]; then
+  elif command -v wget &>/dev/null; then
-    wget $RawUrl -O "$ScriptPath" ; chmod +x "$ScriptPath"
+    wget $RawUrl -O "$ScriptPath"; chmod +x "$ScriptPath"
-    printf "\n%s\n" "--- starting over with the updated version ---"
+    printf "\n%b---%b starting over with the updated version %b---%b\n" "$c_yellow" "$c_teal" "$c_yellow" "$c_reset"
     exec "$ScriptPath" "${ScriptArgs[@]}" # run the new script with old arguments
-    exit 1 # Exit the old instance
+    exit 0 # exit the old instance
   else
-    printf "curl/wget not available - download the update manually: %s \n" "$Github"
+    printf "\n%bcurl/wget not available %b- download the update manually: %b%s %b\n" "$c_red" "$c_reset" "$c_teal" "$Github" "$c_reset"
   fi
 }
 
 self_update() {
-  cd "$ScriptWorkDir" || { printf "Path error, skipping update.\n" ; return ; }
+  cd "$ScriptWorkDir" || { printf "%bPath error,%b skipping update.\n" "$c_red" "$c_reset"; return; }
-  if [[ $(command -v git) ]] && [[ "$(git ls-remote --get-url 2>/dev/null)" =~ .*"mag37/dockcheck".* ]] ; then
+  if command -v git &>/dev/null && [[ "$(git ls-remote --get-url 2>/dev/null)" =~ .*"mag37/dockcheck".* ]]; then
     printf "\n%s\n" "Pulling the latest version."
-    git pull --force || { printf "Git error, manually pull/clone.\n" ; return ; }
+    git pull --force || { printf "%bGit error,%b manually pull/clone.\n" "$c_red" "$c_reset"; return; }
     printf "\n%s\n" "--- starting over with the updated version ---"
-    cd - || { printf "Path error.\n" ; return ; }
+    cd - || { printf "%bPath error.%b\n" "$c_red"; return; }
     exec "$ScriptPath" "${ScriptArgs[@]}" # run the new script with old arguments
-    exit 1 # exit the old instance
+    exit 0 # exit the old instance
   else
-    cd - || { printf "Path error.\n" ; return ; }
+    cd - || { printf "%bPath error.%b\n" "$c_red"; return; }
     self_update_curl
   fi
 }
 
-# Choose from list function
 choosecontainers() {
-  while [[ -z "$ChoiceClean" ]]; do
+  while [[ -z "${ChoiceClean:-}" ]]; do
     read -r -p "Enter number(s) separated by comma, [a] for all - [q] to quit: " Choice
-    if [[ "$Choice" =~ [qQnN] ]] ; then
+    if [[ "$Choice" =~ [qQnN] ]]; then
       exit 0
-    elif [[ "$Choice" =~ [aAyY] ]] ; then
+    elif [[ "$Choice" =~ [aAyY] ]]; then
       SelectedUpdates=( "${GotUpdates[@]}" )
       ChoiceClean=${Choice//[,.:;]/ }
     else
       ChoiceClean=${Choice//[,.:;]/ }
-      for CC in $ChoiceClean ; do
+      for CC in $ChoiceClean; do
-        if [[ "$CC" -lt 1 || "$CC" -gt $UpdCount ]] ; then # Reset choice if out of bounds
+        if [[ "$CC" -lt 1 || "$CC" -gt $UpdCount ]]; then # Reset choice if out of bounds
-          echo "Number not in list: $CC" ; unset ChoiceClean ; break 1
+          echo "Number not in list: $CC"; unset ChoiceClean; break 1
         else
           SelectedUpdates+=( "${GotUpdates[$CC-1]}" )
         fi
       done
     fi
   done
-  printf "\nUpdating containers:\n"
+  printf "\n%bUpdating container(s):%b\n" "$c_blue" "$c_reset"
   printf "%s\n" "${SelectedUpdates[@]}"
   printf "\n"
 }
 
 datecheck() {
-  ImageDate=$($regbin -v error image inspect "$RepoUrl" --format='{{.Created}}' | cut -d" " -f1 )
+  ImageDate=$("$regbin" -v error image inspect "$RepoUrl" --format='{{.Created}}' | cut -d" " -f1)
   ImageEpoch=$(date -d "$ImageDate" +%s 2>/dev/null) || ImageEpoch=$(date -f "%Y-%m-%d" -j "$ImageDate" +%s)
-  ImageAge=$(( ( $(date +%s) - $ImageEpoch )/86400 ))
+  ImageAge=$(( ( $(date +%s) - ImageEpoch )/86400 ))
-  if [ "$ImageAge" -gt "$DaysOld" ] ; then
+  if [[ "$ImageAge" -gt "$DaysOld" ]]; then
     return 0
   else
     return 1
@@ -148,42 +214,36 @@ datecheck() {
 progress_bar() {
   QueCurrent="$1"
   QueTotal="$2"
+  BarWidth=${BarWidth:-50}
   ((Percent=100*QueCurrent/QueTotal))
-  ((Complete=50*Percent/100)) # Change first number for width (50)
+  ((Complete=BarWidth*Percent/100))
-  ((Left=50-Complete)) # Change first number for width (50)
+  ((Left=BarWidth-Complete)) || true # to not throw error when result is 0
   BarComplete=$(printf "%${Complete}s" | tr " " "#")
   BarLeft=$(printf "%${Left}s" | tr " " "-")
-  [[ "$QueTotal" == "$QueCurrent" ]] || printf "\r[%s%s] %s/%s " "$BarComplete" "$BarLeft" "$QueCurrent" "$QueTotal"
+  if [[ "$QueTotal" != "$QueCurrent" ]]; then
-  [[ "$QueTotal" == "$QueCurrent" ]] && printf "\r[%b%s%b] %s/%s \n" "$c_teal" "$BarComplete" "$c_reset" "$QueCurrent" "$QueTotal"
+    printf "\r[%s%s] %s/%s " "$BarComplete" "$BarLeft" "$QueCurrent" "$QueTotal"
+  else
+    printf "\r[%b%s%b] %s/%s \n" "$c_teal" "$BarComplete" "$c_reset" "$QueCurrent" "$QueTotal"
+  fi
 }
 
 # Function to add user-provided urls to releasenotes
 releasenotes() {
-  for update in ${GotUpdates[@]}; do
+  unset Updates
+  for update in "${GotUpdates[@]}"; do
     found=false
     while read -r container url; do
-      [[ $update == $container ]] && Updates+=("$update  ->  $url") && found=true
+      if [[ "$update" == "$container" ]] && [[ "$PrintMarkdownURL" == true ]]; then Updates+=("- [$update]($url)"); found=true;
-    done < "$ScriptWorkDir"/urls.list
+      elif [[ "$update" == "$container" ]]; then Updates+=("$update  ->  $url"); found=true;
-    [[ $found == false ]] && Updates+=("$update  ->  url missing") || continue
+      fi
+    done < "${ScriptWorkDir}/urls.list"
+    if [[ "$found" == false ]] && [[ "$PrintMarkdownURL" == true ]]; then Updates+=("- $update  ->  url missing");
+    elif [[ "$found" == false ]]; then Updates+=("$update  ->  url missing");
+    else continue;
+    fi
   done
 }
 
-# Version check & initiate self update
-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" "$LatestChanges"
-  if [[ -z "$AutoUp" ]] ; then
-    read -r -p "Would you like to update? y/[n]: " SelfUpdate
-    [[ "$SelfUpdate" =~ [yY] ]] && self_update
-  else
-    [[ -n "$Notify" ]] && { [[ $(type -t dockcheck_notification) == function ]] && dockcheck_notification "$VERSION" "$LatestRelease" "$LatestChanges" || printf "Could not source notification function.\n" ; }
-  fi
-fi
-
-# Set $1 to a variable for name filtering later
-SearchName="$1"
-# Create array of excludes
-IFS=',' read -r -a Excludes <<< "$Exclude" ; unset IFS
-
 # Static binary downloader for dependencies
 binary_downloader() {
   BinaryName="$1"
@@ -191,23 +251,31 @@ binary_downloader() {
   case "$(uname -m)" in
     x86_64|amd64) architecture="amd64" ;;
     arm64|aarch64) architecture="arm64";;
-    *) printf "\n%bArchitecture not supported, exiting.%b\n" "$c_red" "$c_reset" ; exit 1;;
+    *) printf "\n%bArchitecture not supported, exiting.%b\n" "$c_red" "$c_reset"; exit 1;;
   esac
   GetUrl="${BinaryUrl/TEMP/"$architecture"}"
-  if [[ $(command -v curl) ]]; then curl -L $GetUrl > "$ScriptWorkDir/$BinaryName" ;
+  if command -v curl &>/dev/null; then curl -L "$GetUrl" > "$ScriptWorkDir/$BinaryName";
-  elif [[ $(command -v wget) ]]; then wget $GetUrl -O "$ScriptWorkDir/$BinaryName" ;
+  elif command -v wget &>/dev/null; then wget "$GetUrl" -O "$ScriptWorkDir/$BinaryName";
   else printf "%s\n" "curl/wget not available - get $BinaryName manually from the repo link, exiting."; exit 1;
   fi
   [[ -f "$ScriptWorkDir/$BinaryName" ]] && chmod +x "$ScriptWorkDir/$BinaryName"
 }
 
 distro_checker() {
-  if [[ -f /etc/arch-release ]] ; then PkgInstaller="pacman -S"
+  isRoot=false
-  elif [[ -f /etc/redhat-release ]] ; then PkgInstaller="sudo dnf install"
+  [[ ${EUID:-} == 0 ]] && isRoot=true
-  elif [[ -f /etc/SuSE-release ]] ; then PkgInstaller="sudo zypper install"
+  if [[ -f /etc/alpine-release ]] ; then
-  elif [[ -f /etc/debian_version ]] ; then PkgInstaller="sudo apt-get install"
+    [[ "$isRoot" == true ]] && PkgInstaller="apk add" || PkgInstaller="doas apk add"
-  elif [[ $(uname -s) == "Darwin" ]] ; then PkgInstaller="brew install"
+  elif [[ -f /etc/arch-release ]]; then
-  else PkgInstaller="ERROR" ; printf "\n%bNo distribution could be determined%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+    [[ "$isRoot" == true ]] && PkgInstaller="pacman -S" || PkgInstaller="sudo pacman -S"
+  elif [[ -f /etc/debian_version ]]; then
+    [[ "" == true ]] && PkgInstaller="apt-get install" || PkgInstaller="sudo apt-get install"
+  elif [[ -f /etc/redhat-release ]]; then
+    [[ "$isRoot" == true ]] && PkgInstaller="dnf install" || PkgInstaller="sudo dnf install"
+  elif [[ -f /etc/SuSE-release ]]; then
+    [[ "$isRoot" == true ]] && PkgInstaller="zypper install" || PkgInstaller="sudo zypper install"
+  elif [[ $(uname -s) == "Darwin" ]]; then PkgInstaller="brew install"
+  else PkgInstaller="ERROR"; printf "\n%bNo distribution could be determined%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
   fi
 }
 
@@ -216,41 +284,68 @@ dependency_check() {
   AppName="$1"
   AppVar="$2"
   AppUrl="$3"
-  if [[ $(command -v $AppName) ]]; then export $AppVar="$AppName" ;
+  if command -v "$AppName" &>/dev/null; then export "$AppVar"="$AppName";
-  elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export $AppVar="$ScriptWorkDir/$AppName" ;
+  elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export "$AppVar"="$ScriptWorkDir/$AppName";
   else
-    printf "%s\n" "Required dependency '$AppName' missing, do you want to install it?"
+    printf "%s\n" "Required dependency %b'%s'%b missing, do you want to install it?\n" "$c_teal" "$AppName" "$c_reset"
     read -r -p "y: With packagemanager (sudo). / s: Download static binary. y/s/[n] " GetBin
     GetBin=${GetBin:-no} # set default to no if nothing is given
-    if [[ "$GetBin" =~ [yYsS] ]] ; then
+    if [[ "$GetBin" =~ [yYsS] ]]; then
       [[ "$GetBin" =~ [yY] ]] && distro_checker
-      if [[ -n "$PkgInstaller" && "$PkgInstaller" != "ERROR" ]] ; then
+      if [[ -n "${PkgInstaller:-}" && "${PkgInstaller:-}" != "ERROR" ]]; then
         [[ $(uname -s) == "Darwin" && "$AppName" == "regctl" ]] && AppName="regclient"
-        ($PkgInstaller $AppName) ; PkgExitcode="$?" && AppName="$1"
+        if $PkgInstaller "$AppName"; then
-        if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
+          AppName="$1"
-        else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+          export "$AppVar"="$AppName"
+          printf "\n%b%b installed.%b\n" "$c_green" "$AppName" "$c_reset"
+        else
+          PkgInstaller="ERROR"
+          printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
         fi
       fi
-      if [[ "$GetBin" =~ [sS] || "$PkgInstaller" == "ERROR" || "$PkgExitcode" != 0 ]] ; then
+      if [[ "$GetBin" =~ [sS] ]] || [[ "$PkgInstaller" == "ERROR" ]]; then
           binary_downloader "$AppName" "$AppUrl"
-          [[ -f "$ScriptWorkDir/$AppName" ]] && { export $AppVar="$ScriptWorkDir/$1" && printf "\n%b$AppName downloaded.%b\n" "$c_green" "$c_reset"; }
+          [[ -f "$ScriptWorkDir/$AppName" ]] && { export "$AppVar"="$ScriptWorkDir/$1" && printf "\n%b%s downloaded.%b\n" "$c_green" "$AppName" "$c_reset"; }
       fi
-    else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset" ; exit 1 ;
+    else printf "\n%bDependency missing, exiting.%b\n" "$c_red" "$c_reset"; exit 1;
     fi
   fi
   # Final check if binary is correct
   [[ "$1" == "jq" ]] && VerFlag="--version"
   [[ "$1" == "regctl" ]] && VerFlag="version"
-  ${!AppVar} $VerFlag &> /dev/null  || { printf "%s\n" "$AppName is not working - try to remove it and re-download it, exiting."; exit 1; }
+  ${!AppVar} "$VerFlag" &> /dev/null  || { printf "%s\n" "$AppName is not working - try to remove it and re-download it, exiting."; exit 1; }
 }
 
+# Numbered List function
+# if urls.list exists add release note url per line
+list_options() {
+  num=1
+  for update in "${Updates[@]}"; do
+    echo "$num) $update"
+    ((num++))
+  done
+}
+
+# Version check & initiate self update
+if [[ "$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 [[ "$AutoMode" == false ]]; then
+    read -r -p "Would you like to update? y/[n]: " SelfUpdate
+    [[ "$SelfUpdate" =~ [yY] ]] && self_update
+  elif [[ "$AutoMode" == true ]] && [[ "$AutoSelfUpdate" == true ]]; then self_update;
+  else
+    [[ "$Notify" == true ]] && { [[ $(type -t dockcheck_notification) == function ]] && dockcheck_notification "$VERSION" "$LatestRelease" "$LatestChanges" || printf "Could not source notification function.\n"; }
+  fi
+fi
+
 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"
 
 # Check docker compose binary
-if docker compose version &> /dev/null ; then DockerBin="docker compose" ;
+docker info &>/dev/null || { printf "\n%bYour current user does not have permissions to the docker socket - may require root / docker group. Exiting.%b\n" "$c_red" "$c_reset"; exit 1; }
-elif docker-compose -v &> /dev/null; then DockerBin="docker-compose" ;
+if docker compose version &>/dev/null; then DockerBin="docker compose" ;
-elif docker -v &> /dev/null; then
+elif docker-compose -v &>/dev/null; then DockerBin="docker-compose" ;
+elif docker -v &>/dev/null; then
   printf "%s\n" "No docker compose binary available, using plain docker (Not recommended!)"
   printf "%s\n" "'docker run' will ONLY update images, not the container itself."
 else
@@ -258,17 +353,8 @@ else
   exit 1
 fi
 
-# Numbered List function
-options() {
-num=1
-for i in "${GotUpdates[@]}"; do
-  echo "$num) $i"
-  ((num++))
-done
-}
-
 # Listing typed exclusions
-if [[ -n ${Excludes[*]} ]] ; then
+if [[ -n ${Excludes[*]:-} ]]; then
   printf "\n%bExcluding these names:%b\n" "$c_blue" "$c_reset"
   printf "%s\n" "${Excludes[@]}"
   printf "\n"
@@ -279,9 +365,9 @@ ContCount=$(docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}'
 RegCheckQue=0
 
 # Testing and setting timeout binary
-t_out=$(command -v timeout)
+t_out=$(command -v timeout || echo "")
 if [[ $t_out ]]; then
-  t_out=$(realpath $t_out 2>/dev/null || readlink -f $t_out)
+  t_out=$(realpath "$t_out" 2>/dev/null || readlink -f "$t_out")
   if [[ $t_out =~ "busybox" ]]; then
     t_out="timeout ${Timeout}"
   else t_out="timeout --foreground ${Timeout}"
@@ -292,9 +378,9 @@ fi
 check_image() {
   i="$1"
   local Excludes=($Excludes_string)
-  for e in "${Excludes[@]}" ; do
+  for e in "${Excludes[@]}"; do
     if [[ "$i" == "$e" ]]; then
-      echo Skip $i
+      printf "%s\n" "Skip $i"
       return
     fi
   done
@@ -305,25 +391,24 @@ check_image() {
   LocalHash=$(docker image inspect "$ImageId" --format '{{.RepoDigests}}')
 
   # Checking for errors while setting the variable
-  if RegHash=$(${t_out} $regbin -v error image digest --list "$RepoUrl" 2>&1) ; then
+  if RegHash=$($t_out "$regbin" -v error image digest --list "$RepoUrl" 2>&1); then
-    if [[ "$LocalHash" = *"$RegHash"* ]] ; then
+    if [[ "$LocalHash" = *"$RegHash"* ]]; then
-      echo NoUpdates "$i"
+      printf "%s\n" "NoUpdates $i"
     else
-      if [[ -n "$DaysOld" ]] && ! datecheck ; then
+      if [[ -n "${DaysOld:-}" ]] && ! datecheck; then
-        echo NoUpdates "+$i ${ImageAge}d"
+        printf "%s\n" "NoUpdates +$i ${ImageAge}d"
       else
-        echo GotUpdates "$i"
+        printf "%s\n" "GotUpdates $i"
       fi
     fi
   else
-    # Here the RegHash is the result of an error code
+    printf "%s\n" "GotErrors $i - ${RegHash}"  # Reghash contains an error code here
-    echo GotErrors "$i - ${RegHash}"
   fi
 }
 
 # Make required functions and variables available to subprocesses
 export -f check_image datecheck
-export Excludes_string="${Excludes[@]}" # Can only export scalar variables
+export Excludes_string="${Excludes[*]:-}" # Can only export scalar variables
 export t_out regbin RepoUrl DaysOld
 
 # Check for POSIX xargs with -P option, fallback without async
@@ -331,13 +416,13 @@ if (echo "test" | xargs -P 2 >/dev/null 2>&1) && [[ "$MaxAsync" != 0 ]]; then
   XargsAsync="-P $MaxAsync"
 else
   XargsAsync=""
-  [[ "$MaxAsync" != 0 ]] && printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$c_red" "$c_reset"
+  [[ "$MaxAsync" != 0 ]] && printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$c_yellow" "$c_reset"
 fi
 
 # Asynchronously check the image-hash of every running container VS the registry
 while read -r line; do
   ((RegCheckQue+=1))
-  progress_bar "$RegCheckQue" "$ContCount"
+  if [[ "$MonoMode" == false ]]; then progress_bar "$RegCheckQue" "$ContCount"; fi
 
   Got=${line%% *}  # Extracts the first word (NoUpdates, GotUpdates, GotErrors)
   item=${line#* }
@@ -351,48 +436,53 @@ while read -r line; do
   esac
 done < <( \
   docker ps $Stopped --filter "name=$SearchName" --format '{{.Names}}' | \
-  xargs ${XargsAsync} -I {} bash -c 'check_image "{}"' \
+  xargs $XargsAsync -I {} bash -c 'check_image "{}"' \
 )
 
 # Sort arrays alphabetically
 IFS=$'\n'
-NoUpdates=($(sort <<<"${NoUpdates[*]}"))
+NoUpdates=($(sort <<<"${NoUpdates[*]:-}"))
-GotUpdates=($(sort <<<"${GotUpdates[*]}"))
+GotUpdates=($(sort <<<"${GotUpdates[*]:-}"))
 unset IFS
 
 # Run the prometheus exporter function
-if [ -n "$CollectorTextFileDirectory" ] ; then
+if [[ -n "${CollectorTextFileDirectory:-}" ]]; then
-  source "$ScriptWorkDir"/addons/prometheus/prometheus_collector.sh && prometheus_exporter ${#NoUpdates[@]} ${#GotUpdates[@]} ${#GotErrors[@]}
+  if type -t prometheus_exporter &>/dev/null; then
+    prometheus_exporter ${#NoUpdates[@]} ${#GotUpdates[@]} ${#GotErrors[@]}
+  else
+    printf "%s\n" "Could not source prometheus exporter function."
+  fi
 fi
 
 # Define how many updates are available
 UpdCount="${#GotUpdates[@]}"
 
 # List what containers got updates or not
-if [[ -n ${NoUpdates[*]} ]] ; then
+if [[ -n ${NoUpdates[*]:-} ]]; then
   printf "\n%bContainers on latest version:%b\n" "$c_green" "$c_reset"
   printf "%s\n" "${NoUpdates[@]}"
 fi
-if [[ -n ${GotErrors[*]} ]] ; then
+if [[ -n ${GotErrors[*]:-} ]]; then
   printf "\n%bContainers with errors, won't get updated:%b\n" "$c_red" "$c_reset"
   printf "%s\n" "${GotErrors[@]}"
   printf "%binfo:%b 'unauthorized' often means not found in a public registry.\n" "$c_blue" "$c_reset"
 fi
-if [[ -n ${GotUpdates[*]} ]] ; then
+if [[ -n ${GotUpdates[*]:-} ]]; then
-   printf "\n%bContainers with updates available:%b\n" "$c_yellow" "$c_reset"
+  printf "\n%bContainers with updates available:%b\n" "$c_yellow" "$c_reset"
-   [[ -z "$AutoUp" ]] && options || printf "%s\n" "${GotUpdates[@]}"
+  if [[ -s "$ScriptWorkDir/urls.list" ]] && [[ "$PrintReleaseURL" == true ]]; then releasenotes; else Updates=("${GotUpdates[@]}"); fi
-   [[ -n "$Notify" ]] && { [[ $(type -t send_notification) == function ]] && send_notification "${GotUpdates[@]}" || printf "Could not source notification function.\n" ; }
+  [[ "$AutoMode" == false ]] && list_options || printf "%s\n" "${Updates[@]}"
+  [[ "$Notify" == true ]] && { type -t send_notification &>/dev/null && send_notification "${GotUpdates[@]}" || printf "Could not source notification function.\n"; }
 fi
 
 # Optionally get updates if there's any
-if [ -n "$GotUpdates" ] ; then
+if [[ -n "${GotUpdates:-}" ]]; then
-  if [ -z "$AutoUp" ] ; then
+  if [[ "$AutoMode" == false ]]; then
     printf "\n%bChoose what containers to update.%b\n" "$c_teal" "$c_reset"
     choosecontainers
   else
     SelectedUpdates=( "${GotUpdates[@]}" )
   fi
-  if [ "$AutoUp" == "${AutoUp#[Nn]}" ] ; then
+  if [[ "$DontUpdate" == false ]]; then
     NumberofUpdates="${#SelectedUpdates[@]}"
     CurrentQue=0
     for i in "${SelectedUpdates[@]}"
@@ -403,21 +493,21 @@ if [ -n "$GotUpdates" ] ; then
       ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
       ContImage=$(docker inspect "$i" --format='{{.Config.Image}}')
       ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
-      [ "$ContPath" == "null" ] && ContPath=""
+      [[ "$ContPath" == "null" ]] && ContPath=""
       ContConfigFile=$($jqbin -r '."com.docker.compose.project.config_files"' <<< "$ContLabels")
-      [ "$ContConfigFile" == "null" ] && ContConfigFile=""
+      [[ "$ContConfigFile" == "null" ]] && ContConfigFile=""
       ContName=$($jqbin -r '."com.docker.compose.service"' <<< "$ContLabels")
-      [ "$ContName" == "null" ] && ContName=""
+      [[ "$ContName" == "null" ]] && ContName=""
       ContEnv=$($jqbin -r '."com.docker.compose.project.environment_file"' <<< "$ContLabels")
-      [ "$ContEnv" == "null" ] && ContEnv=""
+      [[ "$ContEnv" == "null" ]] && ContEnv=""
       ContUpdateLabel=$($jqbin -r '."mag37.dockcheck.update"' <<< "$ContLabels")
-      [ "$ContUpdateLabel" == "null" ] && ContUpdateLabel=""
+      [[ "$ContUpdateLabel" == "null" ]] && ContUpdateLabel=""
       ContRestartStack=$($jqbin -r '."mag37.dockcheck.restart-stack"' <<< "$ContLabels")
-      [ "$ContRestartStack" == "null" ] && ContRestartStack=""
+      [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
 
       # Checking if compose-values are empty - hence started with docker run
-      if [ -z "$ContPath" ] ; then
+      if [[ -z "$ContPath" ]]; then
-        if [ "$DRunUp" == "yes" ] ; then
+        if [[ "$DRunUp" == true ]]; then
           docker pull "$ContImage"
           printf "%s\n" "$i got a new image downloaded, rebuild manually with preferred 'docker run'-parameters"
         else
@@ -426,29 +516,30 @@ if [ -n "$GotUpdates" ] ; then
         continue
       fi
       # cd to the compose-file directory to account for people who use relative volumes
-      cd "$ContPath" || { echo "Path error - skipping $i" ; continue ; }
+      cd "$ContPath" || { printf "\n%bPath error - skipping%b %s" "$c_red" "$c_reset" "$i"; continue; }
       ## Reformatting path + multi compose
-      if [[ $ContConfigFile = '/'* ]] ; then
+      if [[ $ContConfigFile = '/'* ]]; then
-        CompleteConfs=$(for conf in ${ContConfigFile//,/ } ; do printf -- "-f %s " "$conf"; done)
+        CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s " "$conf"; done)
       else
-        CompleteConfs=$(for conf in ${ContConfigFile//,/ } ; do printf -- "-f %s/%s " "$ContPath" "$conf"; done)
+        CompleteConfs=$(for conf in ${ContConfigFile//,/ }; do printf -- "-f %s/%s " "$ContPath" "$conf"; done)
       fi
       printf "\n%bNow updating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
       # Checking if Label Only -option is set, and if container got the label
-      [[ "$OnlyLabel" == true ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "No update label, skipping." ; continue ; } }
+      [[ "$OnlyLabel" == true ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "No update label, skipping."; continue; } }
-      docker pull "$ContImage"
+      docker pull "$ContImage" || { printf "\n%bDocker error, exiting!%b\n" "$c_red" "$c_reset" ; exit 1; }
       # Check if the container got an environment file set and reformat it
-      if [ -n "$ContEnv" ]; then ContEnvs=$(for env in ${ContEnv//,/ } ; do printf -- "--env-file %s " "$env"; done) ; fi
+      ContEnvs=""
+      if [[ -n "$ContEnv" ]]; then ContEnvs=$(for env in ${ContEnv//,/ }; do printf -- "--env-file %s " "$env"; done); fi
       # Check if the whole stack should be restarted
-      if [[ "$ContRestartStack" == true ]] || [[ "$ForceRestartStacks" == true ]] ; then
+      if [[ "$ContRestartStack" == true ]] || [[ "$ForceRestartStacks" == true ]]; then
-        $DockerBin ${CompleteConfs} stop ; $DockerBin ${CompleteConfs} ${ContEnvs} up -d
+        ${DockerBin} ${CompleteConfs} stop; ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d
       else
-        $DockerBin ${CompleteConfs} ${ContEnvs} up -d ${ContName}
+        ${DockerBin} ${CompleteConfs} ${ContEnvs} up -d || { printf "\n%bDocker error, exiting!%b\n" "$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" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then docker image prune -f; fi
     printf "\n%bAll done!%b\n" "$c_green" "$c_reset"
-    if [[ -z "$AutoPrune" ]] && [[ -z "$AutoUp" ]]; then read -r -p "Would you like to prune dangling images? y/[n]: " AutoPrune ; fi
-    [[ "$AutoPrune" =~ [yY] ]] && docker image prune -f
   else
     printf "\nNo updates installed, exiting.\n"
   fi

notify_templates/notify_gotify.sh

@@ -1,5 +1,5 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
-NOTIFY_GOTIFY_VERSION="v0.1"
+NOTIFY_GOTIFY_VERSION="v0.2"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
@@ -12,11 +12,19 @@ trigger_notification() {
     GotifyToken="Your Gotify token here"
     GotifyUrl="https://api.gotify/message?token=${GotifyToken}"
 
-    curl \
+    if [[ "$PrintMarkdownURL" == true ]]; then
-        -F "title=${MessageTitle}" \
+        ContentType="text/markdown"
-        -F "message=${MessageBody}" \
+    else
-        -F "priority=5" \
+        ContentType="text/plain"
-        -X POST "${GotifyUrl}" 1> /dev/null
+    fi
+
+    JsonData=$( jq -n \
+                  --arg body "$MessageBody" \
+                  --arg title "$MessageTitle" \
+                  --arg type "$ContentType" \
+                  '{message: $body, title: $title, priority: 5, extras: {"client::display": {"contentType": $type}}}' )
+
+    curl -s -S --data "${JsonData}" -H 'Content-Type: application/json' -X POST "${GotifyUrl}" 1> /dev/null
 }
 
 send_notification() {

notify_templates/notify_slack.sh

@@ -0,0 +1,52 @@
+### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_SLACK_VERSION="v0.1"
+#
+# Copy/rename this file to notify.sh in the same directory as dockcheck.sh to enable the notification snippet.
+# Setu app and token at https://api.slack.com/tutorials/tracks/posting-messages-with-curl
+# Add your AccessToken and ChannelID below
+
+FromHost=$(hostname)
+
+trigger_notification() {
+    # Modify to fit your setup:
+    AccessToken="xoxb-not-a-real-token-this-will-not-work"
+    ChannelID="C123456"
+    SlackUrl="https://slack.com/api/chat.postMessage"
+
+    curl -sS -o /dev/null --show-error --fail \
+      -d "text=$MessageBody" -d "channel=$ChannelID" \
+      -H "Authorization: Bearer $AccessToken" \
+      -X POST $SlackUrl
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    printf "\nSending Slack notification\n"
+
+    MessageTitle="$FromHost - updates available."
+    # Setting the MessageBody variable here.
+    printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n$UpdToString"
+
+    trigger_notification
+}
+
+### Rename (eg. disabled_dockcheck_notification), remove or comment out the following function
+### to not send notifications when dockcheck itself has updates.
+dockcheck_notification() {
+    printf "\nSending Slack dockcheck notification\n"
+
+    MessageTitle="$FromHost - New version of dockcheck available."
+    # Setting the MessageBody variable here.
+    printf -v MessageBody "Installed version: $1 \nLatest version: $2 \n\nChangenotes: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_slack.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_SLACK_VERSION/s/NOTIFY_SLACK_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_SLACK_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_slack.sh update avialable:\n $NOTIFY_SLACK_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
+}

notify_templates/notify_telegram.sh

@@ -8,6 +8,13 @@ NOTIFY_TELEGRAM_VERSION="v0.1"
 FromHost=$(hostname)
 
 trigger_notification() {
+
+    if [[ "$PrintMarkdownURL" == true ]]; then
+        ParseMode="Markdown"
+    else
+        ParseMode="HTML"
+    fi
+
     # Modify to fit your setup:
     TelegramToken="Your Telegram token here"
     TelegramChatId="Your Telegram ChatId here"

notify_templates/urls.list

@@ -11,6 +11,12 @@ actual_server https://actualbudget.org/blog
 gotify https://github.com/gotify/server/releases
 traefik https://github.com/traefik/traefik/releases
 caddy https://github.com/caddyserver/caddy/releases
+homarr https://github.com/homarr-labs/homarr/releases
+dozzle https://github.com/amir20/dozzle/releases
+beszel https://github.com/henrygd/beszel/releases
+forgejo https://codeberg.org/forgejo/forgejo/releases
+dockge https://github.com/louislam/dockge/releases
+cup https://github.com/sergi0g/cup/releases
 
 calibre https://github.com/linuxserver/docker-calibre/releases
 calibre-web https://github.com/linuxserver/docker-calibre-web/releases
@@ -29,7 +35,15 @@ radarr https://github.com/linuxserver/docker-radarr/releases
 lidarr https://github.com/linuxserver/docker-lidarr/releases
 jellyseerr https://github.com/Fallenbagel/jellyseerr/releases
 jellyfin https://github.com/jellyfin/jellyfin/releases
+tautulli https://github.com/Tautulli/Tautulli/releases
+cleanuperr https://github.com/flmorg/cleanuperr/releases
+slskd https://github.com/slskd/slskd/releases
 
 home-assistant https://github.com/home-assistant/docker/releases
 zigbee2mqtt https://github.com/Koenkk/zigbee2mqtt/releases
 mqtt https://github.com/eclipse/mosquitto/tags
+
+bookstack https://github.com/BookStackApp/BookStack/releases
+lubelogger https://github.com/hargata/lubelog/releases
+mealie https://github.com/mealie-recipes/mealie/releases
+flatnotes https://github.com/dullage/flatnotes/releases