quickfix printfs

added sponsor
Update rework (#178 )
2026-04-17 09:57:49 +00:00 · 2025-05-12 15:54:34 +02:00 · 2025-05-12 07:28:49 +02:00 · 2025-05-11 20:50:09 +02:00 · 2025-05-07 11:31:34 +02:00 · 2025-05-07 11:29:21 +02:00
23 changed files with 936 additions and 331 deletions
--- a/.gitignore
+++ b/.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
--- a/README.md
+++ b/README.md
@@ -11,21 +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 and more.</h3>
-
-<h4 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
+<h3 align="center">selective updates, exclude containers, 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>

+<h5 align="center">For Podman - see the fork <a href="https://github.com/sudo-kraken/podcheck">sudo-kraken/podcheck</a>!</h4>
+
 ___
 ## :bell: Changelog

- **v0.5.6.0**: Heavily improved performance due to async checking for updates. 
- **v0.5.5.0**: osx and bsd compatibility changes + rewrite of dependency installer
- **v0.5.4.0**: Added support for a Prometheus+node_exporter metric collection through a file collector.
- **v0.5.3.0**: Local image check changed (use imageId instead of name) and Gotify-template fixed (whale icon removed).
- **v0.5.2.1**: Rewrite of dependency downloads, jq can be installed with package manager or static binary.
+- **v0.6.4**: Restructured the update process - first pulls all updates, then recreates all containers.
+    - Added logic to skip update check on non-compose containers (unless `-r` option).
+    - Added option `-F` to revert to `compose up -d <ContainerName>` targeting specific container and not the stack.
+        - Also added corresponding label and config-option.
+    - Added markdown formatting to `notify_ntfy-sh.sh` template.
+- **v0.6.3**: Some fixes and changes:
+    - Stops when a container recreation (compose up -d) fails, also `up`s the whole stack now.
+    - `-M`, Markdown format url-releasenotes in notification (requires template rework, look at gotify!)
+    - Added [addons/DSM/README.md](./addons/DSM/README.md) for more info Synology DSM info.
+    - Permission checks - graceful exit if no docker permissions + checking if root for pkg-manager.
+- **v0.6.2**: Style and colour changes, prometheus hotfix, new options:
+    - `-u`, Allow auto self update of dockcheck.sh
+    - `-I`, Print container release URLs in the CLI "choose update" list. (please contribute to `urls.list`)
+    - 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
 ___


@@ -35,24 +47,29 @@ ___
 ```
 $ ./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.
 -e X   Exclude containers, separated by comma.
-f     Force stack restart after update. Caution: restarts once for every updated container within stack.
+-f     Force stop+start stack after update. Caution: restarts once for every updated container within stack.
+-F     Only compose up the specific container, not the whole compose stack (useful for master-compose structure).
 -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:
@@ -87,7 +104,7 @@ ___
  - regctl requires `amd64/arm64` - see [workaround](#roller_coaster-workaround-for-non-amd64--arm64) if other architecture is used.

 ## :tent: Install Instructions
-Download the script to a directory in **PATH**, I'd suggest using `~/.local/bin` as that's usually in **PATH**.   
+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
 # basic example with curl:
@@ -103,9 +120,14 @@ 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!  

 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)  
@@ -122,13 +144,18 @@ 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:
@@ -139,26 +166,52 @@ nginx  ->  https://github.com/docker-library/official-images/blob/master/library
 ```
 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.

-## :chart_with_upwards_trend: Prometheus and node_exporter
+## :fast_forward: 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`.
+
+
+## :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:
 ```
    labels:
-      mag37.dockcheck.restart-stack: true
      mag37.dockcheck.update: true
+      mag37.dockcheck.only-specific-container: true
+      mag37.dockcheck.restart-stack: true
 ```
- `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).
 - `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.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).

 ## :roller_coaster: Workaround for non **amd64** / **arm64**
 `regctl` provides binaries for amd64/arm64, to use on other architecture you could try this workaround.
@@ -182,7 +235,7 @@ Test it with `./regctl --help` and then either add the file to the same path as

 ## :whale: 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   
+>Unauthenticated users: 10 pulls/hour  
 >Authenticated users with a free account: 100 pulls/hour

 This is not an issue for registry checks. But if you have a large stack and pull more than 10 updates at once consider updating more often or to create a free account.
@@ -218,6 +271,8 @@ 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)
+- [stepdg](https://github.com/stepdg)

 ___

--- a/addons/DSM/README.md
+++ b/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).
--- a/addons/DSM/dsm1.png
+++ b/addons/DSM/dsm1.png
--- a/addons/DSM/dsm2.png
+++ b/addons/DSM/dsm2.png
--- a/addons/DSM/dsm3.png
+++ b/addons/DSM/dsm3.png
--- a/default.config
+++ b/default.config
@@ -0,0 +1,25 @@
+### 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 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.
+#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).
--- a/dockcheck.sh
+++ b/dockcheck.sh
@@ -1,44 +1,89 @@
 #!/usr/bin/env bash
-VERSION="v0.5.6.0"
-### ChangeNotes: Heavily improved performance due to asynchronous update checks. 
+VERSION="v0.6.4"
+### ChangeNotes: Restructured update process - first pulls all images, then recreates all containers. Added -F option.
 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 $RawUrl | sed -n "/VERSION/s/VERSION=//p" | tr -d '"')"
-LatestChanges="$(curl -s -r 0-200 $RawUrl | sed -n "/ChangeNotes/s/# ChangeNotes: //p")"
+LatestRelease="$(curl -s -r 0-50 "$RawUrl" | sed -n "/VERSION/s/VERSION=//p" | tr -d '"')"
+LatestChanges="$(curl -s -r 0-200 "$RawUrl" | sed -n "/ChangeNotes/s/# ChangeNotes: //p")"
+
+# User customizable defaults
+if [[ -s "${HOME}/.config/dockcheck.config" ]]; then
+  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."
  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."
-  echo "-f     Force stack restart after update. Caution: restarts once for every updated container within stack."
+  echo "-f     Force stop+start stack after update. Caution: restarts once for every updated container within stack."
+  echo "-F     Only compose up the specific container, not the whole compose stack (useful for master-compose structure)."
  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 "-n     No updates; only checking availability."
+  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."
  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:-}
+OnlySpecific=false
+SpecificContainer=${SpecificContainer:=""}
+Excludes=()
+GotUpdates=()
+NoUpdates=()
+GotErrors=()
+SelectedUpdates=()
+regbin=""
+jqbin=""
+
+# Colours
 c_red="\033[0;31m"
 c_green="\033[0;32m"
 c_yellow="\033[0;33m"
@@ -46,95 +91,121 @@ c_blue="\033[0;34m"
 c_teal="\033[0;36m"
 c_reset="\033[0m"

-MaxAsync=32
-Timeout=10
-Stopped=""
-while getopts "aynpfrhlisvmc:e:d:t:" options; do
+while getopts "ayfFhiIlmMnprsuvc:e:d:t:x:" options; do
  case "${options}" in
-    a|y) AutoUp="yes" ;;
-    c)   CollectorTextFileDirectory="${OPTARG}"
-         if ! [[ -d  $CollectorTextFileDirectory ]] ; then { printf "The directory (%s) does not exist.\n" "${CollectorTextFileDirectory}"  ; exit 2; } fi ;;
-    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" ; } ;;
+    a|y) AutoMode=true ;;
+    c)   CollectorTextFileDirectory="${OPTARG}" ;;
+    d)   DaysOld=${OPTARG} ;;
    e)   Exclude=${OPTARG} ;;
-    m)   declare c_{red,green,yellow,blue,teal,reset}="" ;;
+    f)   ForceRestartStacks=true ;;
+    F)   OnlySpecific=true ;;
+    i)   Notify=true ;;
+    I)   PrintReleaseURL=true ;;
+    l)   OnlyLabel=true ;;
+    m)   MonoMode=true ;;
+    M)   PrintMarkdownURL=true ;;
+    n)   DontUpdate=true; AutoMode=true;;
+    p)   AutoPrune=true ;;
+    r)   DRunUp=true ;;
    s)   Stopped="-a" ;;
    t)   Timeout="${OPTARG}" ;;
-    v)   printf "%s\n" "$VERSION" ; exit 0 ;;
-    d)   DaysOld=${OPTARG}
-         if ! [[ $DaysOld =~ ^[0-9]+$ ]] ; then { printf "Days -d argument given (%s) is not a number.\n" "${DaysOld}" ; exit 2 ; } ; fi ;;
-    h|*) Help ; exit 2 ;;
+    u)   AutoSelfUpdate=true ;;
+    v)   printf "%s\n" "$VERSION"; exit 0 ;;
+    x)   MaxAsync=${OPTARG} ;;
+    h|*) Help; exit 2 ;;
  esac
 done
 shift "$((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
-    curl -L $RawUrl > "$ScriptPath" ; chmod +x "$ScriptPath"
-    printf "\n%s\n" "--- starting over with the updated version ---"
+  if command -v curl &>/dev/null; then
+    curl -L $RawUrl > "$ScriptPath"; chmod +x "$ScriptPath"
+    printf "\n%b---%b starting over with the updated version %b---%b\n" "$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
-    wget $RawUrl -O "$ScriptPath" ; chmod +x "$ScriptPath"
-    printf "\n%s\n" "--- starting over with the updated version ---"
+  elif command -v wget &>/dev/null; then
+    wget $RawUrl -O "$ScriptPath"; chmod +x "$ScriptPath"
+    printf "\n%b---%b starting over with the updated version %b---%b\n" "$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 ; }
-  if [[ $(command -v git) ]] && [[ "$(git ls-remote --get-url 2>/dev/null)" =~ .*"mag37/dockcheck".* ]] ; then
+  cd "$ScriptWorkDir" || { printf "%bPath error,%b skipping update.\n" "$c_red" "$c_reset"; return; }
+  if command -v git &>/dev/null && [[ "$(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 $ChoiceClean ; do
-        if [[ "$CC" -lt 1 || "$CC" -gt $UpdCount ]] ; then # Reset choice if out of bounds
-          echo "Number not in list: $CC" ; unset ChoiceClean ; break 1
+      for CC in $ChoiceClean; do
+        if [[ "$CC" -lt 1 || "$CC" -gt $UpdCount ]]; then # Reset choice if out of bounds
+          echo "Number not in list: $CC"; unset ChoiceClean; break 1
        else
          SelectedUpdates+=( "${GotUpdates[$CC-1]}" )
        fi
      done
    fi
  done
-  printf "\nUpdating containers:\n"
-  printf "%s\n" "${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) - $ImageEpoch )/86400 ))
-  if [ "$ImageAge" -gt "$DaysOld" ] ; then
+  ImageAge=$(( ( $(date +%s) - ImageEpoch )/86400 ))
+  if [[ "$ImageAge" -gt "$DaysOld" ]]; then
    return 0
  else
    return 1
@@ -144,40 +215,36 @@ datecheck() {
 progress_bar() {
  QueCurrent="$1"
  QueTotal="$2"
+  BarWidth=${BarWidth:-50}
  ((Percent=100*QueCurrent/QueTotal))
-  ((Complete=50*Percent/100)) # Change first number for width (50)
-  ((Left=50-Complete)) # Change first number for width (50)
+  ((Complete=BarWidth*Percent/100))
+  ((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"
-  [[ "$QueTotal" == "$QueCurrent" ]] && printf "\r[%b%s%b] %s/%s \n" "$c_teal" "$BarComplete" "$c_reset" "$QueCurrent" "$QueTotal"
+  if [[ "$QueTotal" != "$QueCurrent" ]]; then
+    printf "\r[%s%s] %s/%s " "$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  ->  $url") && found=true
-    done < "$ScriptWorkDir"/urls.list
-    [[ $found == false ]] && Updates+=("$update  ->  url missing") || continue
+      if [[ "$update" == "$container" ]] && [[ "$PrintMarkdownURL" == true ]]; then Updates+=("- [$update]($url)"); found=true;
+      elif [[ "$update" == "$container" ]]; then Updates+=("$update  ->  $url"); found=true;
+      fi
+    done < "${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
-  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="$1"
@@ -185,23 +252,31 @@ binary_downloader() {
  case "$(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" ;
-  elif [[ $(command -v wget) ]]; then wget $GetUrl -O "$ScriptWorkDir/$BinaryName" ;
-  else printf "%s\n" "curl/wget not available - get $BinaryName manually from the repo link, exiting."; exit 1;
+  if command -v curl &>/dev/null; then curl -L "$GetUrl" > "$ScriptWorkDir/$BinaryName";
+  elif command -v wget &>/dev/null; then wget "$GetUrl" -O "$ScriptWorkDir/$BinaryName";
+  else printf "\n%bcurl/wget not available - get %s manually from the repo link, exiting.%b" "$c_red" "$BinaryName" "$c_reset"; exit 1;
  fi
  [[ -f "$ScriptWorkDir/$BinaryName" ]] && chmod +x "$ScriptWorkDir/$BinaryName"
 }

 distro_checker() {
-  if [[ -f /etc/arch-release ]] ; then PkgInstaller="pacman -S"
-  elif [[ -f /etc/redhat-release ]] ; then PkgInstaller="sudo dnf install"
-  elif [[ -f /etc/SuSE-release ]] ; then PkgInstaller="sudo zypper install"
-  elif [[ -f /etc/debian_version ]] ; then PkgInstaller="sudo apt-get 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"
+  isRoot=false
+  [[ ${EUID:-} == 0 ]] && isRoot=true
+  if [[ -f /etc/alpine-release ]] ; then
+    [[ "$isRoot" == true ]] && PkgInstaller="apk add" || PkgInstaller="doas apk add"
+  elif [[ -f /etc/arch-release ]]; then
+    [[ "$isRoot" == true ]] && PkgInstaller="pacman -S" || PkgInstaller="sudo pacman -S"
+  elif [[ -f /etc/debian_version ]]; then
+    [[ "" == true ]] && PkgInstaller="apt-get install" || PkgInstaller="sudo apt-get install"
+  elif [[ -f /etc/redhat-release ]]; then
+    [[ "$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
 }

@@ -210,41 +285,68 @@ dependency_check() {
  AppName="$1"
  AppVar="$2"
  AppUrl="$3"
-  if [[ $(command -v $AppName) ]]; then export $AppVar="$AppName" ;
-  elif [[ -f "$ScriptWorkDir/$AppName" ]]; then export $AppVar="$ScriptWorkDir/$AppName" ;
+  if command -v "$AppName" &>/dev/null; then export "$AppVar"="$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 "\nRequired 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="$1"
-        if [[ "$PkgExitcode" == 0 ]] ; then { export $AppVar="$AppName" && printf "\n%b$AppName installed.%b\n" "$c_green" "$c_reset"; }
-        else printf "\n%bPackagemanager install failed%b, falling back to static binary.\n" "$c_yellow" "$c_reset"
+        if $PkgInstaller "$AppName"; then
+          AppName="$1"
+          export "$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" ;
-elif docker-compose -v &> /dev/null; then DockerBin="docker-compose" ;
-elif docker -v &> /dev/null; then
+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; }
+if docker compose version &>/dev/null; then DockerBin="docker compose" ;
+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
@@ -252,17 +354,8 @@ 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"
@@ -273,9 +366,9 @@ 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}"
@@ -286,52 +379,60 @@ 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

+  # Skipping non-compose containers unless option is set
+  ContLabels=$(docker inspect "$i" --format '{{json .Config.Labels}}')
+  ContPath=$($jqbin -r '."com.docker.compose.project.working_dir"' <<< "$ContLabels")
+  [[ "$ContPath" == "null" ]] && ContPath=""
+  if [[ -z "$ContPath" ]] && [[ "$DRunUp" == false ]]; then
+    printf "%s\n" "NoUpdates !$i - not checked, no compose file"
+    return
+  fi
+
  local NoUpdates GotUpdates GotErrors
  ImageId=$(docker inspect "$i" --format='{{.Image}}')
  RepoUrl=$(docker inspect "$i" --format='{{.Config.Image}}')
  LocalHash=$(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 [[ "$LocalHash" = *"$RegHash"* ]] ; then
-      echo NoUpdates "$i"
+  if RegHash=$($t_out "$regbin" -v error image digest --list "$RepoUrl" 2>&1); then
+    if [[ "$LocalHash" = *"$RegHash"* ]]; then
+      printf "%s\n" "NoUpdates $i"
    else
-      if [[ -n "$DaysOld" ]] && ! datecheck ; then
-        echo NoUpdates "+$i ${ImageAge}d"
+      if [[ -n "${DaysOld:-}" ]] && ! datecheck; then
+        printf "%s\n" "NoUpdates +$i ${ImageAge}d"
      else
-        echo GotUpdates "$i"
+        printf "%s\n" "GotUpdates $i"
      fi
    fi
  else
-    # Here the RegHash is the result of an error code
-    echo GotErrors "$i - ${RegHash}"
+    printf "%s\n" "GotErrors $i - ${RegHash}"  # Reghash contains an error code here
  fi
 }

 # Make required functions and variables available to subprocesses
 export -f check_image datecheck
-export Excludes_string="${Excludes[@]}" # Can only export scalar variables
-export t_out regbin RepoUrl DaysOld
+export Excludes_string="${Excludes[*]:-}" # Can only export scalar variables
+export t_out regbin RepoUrl DaysOld DRunUp jqbin

-# Check for POSIX xargs with -P option, fallback without async 
-if (echo "test" | xargs -P 10 >/dev/null 2>&1)  ; then
+# Check for POSIX xargs with -P option, fallback without async
+if (echo "test" | xargs -P 2 >/dev/null 2>&1) && [[ "$MaxAsync" != 0 ]]; then
  XargsAsync="-P $MaxAsync"
 else
  XargsAsync=""
-  printf "%bMissing POSIX xargs, consider installing 'findutils' for asynchronous lookups.%b\n" "$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#* }
@@ -345,73 +446,74 @@ 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 <<<"${NoUpdates[*]}"))
-GotUpdates=($(sort <<<"${GotUpdates[*]}"))
+NoUpdates=($(sort <<<"${NoUpdates[*]:-}"))
+GotUpdates=($(sort <<<"${GotUpdates[*]:-}"))
 unset IFS

 # Run the prometheus exporter function
-if [ -n "$CollectorTextFileDirectory" ] ; then
-  source "$ScriptWorkDir"/addons/prometheus/prometheus_collector.sh && prometheus_exporter ${#NoUpdates[@]} ${#GotUpdates[@]} ${#GotErrors[@]}
+if [[ -n "${CollectorTextFileDirectory:-}" ]]; then
+  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 ${GotUpdates[*]} ]] ; then
-   printf "\n%bContainers with updates available:%b\n" "$c_yellow" "$c_reset"
-   [[ -z "$AutoUp" ]] && options || printf "%s\n" "${GotUpdates[@]}"
-   [[ -n "$Notify" ]] && { [[ $(type -t send_notification) == function ]] && send_notification "${GotUpdates[@]}" || printf "Could not source notification function.\n" ; }
+if [[ -n ${GotUpdates[*]:-} ]]; then
+  printf "\n%bContainers with updates available:%b\n" "$c_yellow" "$c_reset"
+  if [[ -s "$ScriptWorkDir/urls.list" ]] && [[ "$PrintReleaseURL" == true ]]; then releasenotes; else Updates=("${GotUpdates[@]}"); fi
+  [[ "$AutoMode" == false ]] && list_options || printf "%s\n" "${Updates[@]}"
+  [[ "$Notify" == true ]] && { type -t send_notification &>/dev/null && send_notification "${GotUpdates[@]}" || printf "\nCould not source notification function.\n"; }
 fi

 # Optionally get updates if there's any
-if [ -n "$GotUpdates" ] ; then
-  if [ -z "$AutoUp" ] ; then
+if [[ -n "${GotUpdates:-}" ]]; then
+  if [[ "$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
+    printf "\n%bUpdating container(s):%b\n" "$c_blue" "$c_reset"
+    printf "%s\n" "${SelectedUpdates[@]}"
+
    NumberofUpdates="${#SelectedUpdates[@]}"
+
    CurrentQue=0
-    for i in "${SelectedUpdates[@]}"
-    do
+    for i in "${SelectedUpdates[@]}"; do
      ((CurrentQue+=1))
-      unset CompleteConfs
-      # Extract labels and metadata
+      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"' <<< "$ContLabels")
-      [ "$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=""
+      [[ "$ContPath" == "null" ]] && ContPath=""
      ContUpdateLabel=$($jqbin -r '."mag37.dockcheck.update"' <<< "$ContLabels")
-      [ "$ContUpdateLabel" == "null" ] && ContUpdateLabel=""
-      ContRestartStack=$($jqbin -r '."mag37.dockcheck.restart-stack"' <<< "$ContLabels")
-      [ "$ContRestartStack" == "null" ] && ContRestartStack=""
+      [[ "$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 "$ContPath" ] ; then
-        if [ "$DRunUp" == "yes" ] ; then
+      if [[ -z "$ContPath" ]]; then
+        if [[ "$DRunUp" == true ]]; then
          docker pull "$ContImage"
          printf "%s\n" "$i got a new image downloaded, rebuild manually with preferred 'docker run'-parameters"
        else
@@ -419,30 +521,61 @@ if [ -n "$GotUpdates" ] ; then
        fi
        continue
      fi
+
+      docker pull "$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" "$c_reset"
+
+    CurrentQue=0
+    for i in "${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=""
+      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"' <<< "$ContLabels")
+      [[ "$ContRestartStack" == "null" ]] && ContRestartStack=""
+
+      # Checking if compose-values are empty - hence started with docker run
+      [[ -z "$ContPath" ]] && continue
+
      # cd to the compose-file directory to account for people who use relative volumes
-      cd "$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 [[ $ContConfigFile = '/'* ]] ; then
-        CompleteConfs=$(for conf in ${ContConfigFile//,/ } ; do printf -- "-f %s " "$conf"; done)
+      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" "$conf"; done)
+        CompleteConfs=$(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 ]] && { [[ "$ContUpdateLabel" != true ]] && { echo "No update label, skipping." ; continue ; } }
-      docker pull "$ContImage"
      # 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
+      # Set variable when compose up should only target the specific container, not the stack
+      if [[ $OnlySpecific == true ]] || [[ $ContOnlySpecific == true ]]; then SpecificContainer="$ContName"; fi
+
+      printf "\n%bNow recreating (%s/%s): %b%s%b\n" "$c_teal" "$CurrentQue" "$NumberofUpdates" "$c_blue" "$i" "$c_reset"
      # Check if the whole stack should be restarted
-      if [[ "$ContRestartStack" == true ]] || [[ "$ForceRestartStacks" == true ]] ; then
-        $DockerBin ${CompleteConfs} stop ; $DockerBin ${CompleteConfs} ${ContEnvs} up -d
+      if [[ "$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 ${ContName}
+        ${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" == true ]] || [[ "$AutoPrune" =~ [yY] ]]; then printf "\n Auto pruning.."; docker image prune -f; fi
    printf "\n%bAll done!%b\n" "$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
--- a/extras/example.gif
+++ b/extras/example.gif
--- a/extras/example_old.gif
+++ b/extras/example_old.gif
--- a/notify_templates/notify_DSM.sh
+++ b/notify_templates/notify_DSM.sh
@@ -1,5 +1,6 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
-# INFO: ssmtp is depcerated - consider to use msmtp instead.
+NOTIFY_DSM_VERSION="v0.1"
+# INFO: ssmtp is deprecated - consider to use msmtp instead.
 #
 # Copy/rename this file to notify.sh to enable the notification snipppet.
 # mSMTP/sSMTP has to be installed and configured manually.
@@ -17,10 +18,9 @@ else
 	echo "No msmtp or ssmtp binary found in PATH: $PATH" ; exit 1
 fi

-send_notification() {
-[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-UpdToString=$( printf '%s\\n' "${Updates[@]}" )
 FromHost=$(hostname)
+
+trigger_notification() {
 CfgFile="/usr/syno/etc/synosmtp.conf"

 # User variables:
@@ -34,15 +34,11 @@ SenderName=$(grep 'smtp_from_name' $CfgFile | sed -n 's/.*"\([^"]*\)".*/\1/p')
 SenderMail=$(grep 'smtp_from_mail' $CfgFile | sed -n 's/.*"\([^"]*\)".*/\1/p')
 SenderMail=${SenderMail:-$(grep 'eventmail1' $CfgFile | sed -n 's/.*"\([^"]*\)".*/\1/p')}

-printf "\nSending email notification.\n"
-
-printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n\n$UpdToString"
-
 $MailPkg $SendMailTo << __EOF
 From: "$SenderName" <$SenderMail>
 date:$(date -R)
 To: <$SendMailTo>
-Subject: $SubjectTag Updates available on $FromHost
+Subject: $SubjectTag $MessageTitle $FromHost
 Content-Type: text/plain; charset=UTF-8; format=flowed
 Content-Transfer-Encoding: 7bit

@@ -52,3 +48,35 @@ __EOF
 # This ensures DSM's container manager will also see the update
 /var/packages/ContainerManager/target/tool/image_upgradable_checker
 }
+
+send_notification() {
+		[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+		UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+		printf "\nSending email notification.\n"
+
+		MessageTitle="Updates available on"
+		# Setting the MessageBody variable here.
+		printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n\n$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 email dockcheck notification.\n"
+
+		MessageTitle="New version of dockcheck available on"
+		# Setting the MessageBody variable here.
+		printf -v MessageBody "Installed version: $1\nLatest version: $2\n\nChangenotes: $3\n"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_DSM.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_DSM_VERSION/s/NOTIFY_DSM_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_DSM_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_DSM.sh update avialable:\n $NOTIFY_DSM_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+		trigger_notification
+}
--- a/notify_templates/notify_apprise.sh
+++ b/notify_templates/notify_apprise.sh
@@ -1,30 +1,55 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_APPRISE_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Modify to fit your setup - if API, set AppriseURL to your Apprise ip/domain.

-send_notification() {
-[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-UpdToString=$( printf '%s\\n' "${Updates[@]}" )
 FromHost=$(hostname)

-printf "\nSending Apprise notification\n"
+trigger_notification() {

-MessageTitle="$FromHost - updates available."
-# Setting the MessageBody variable here.
-printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n$UpdToString"
-
-# Modify to fit your setup:
-apprise -vv -t "$MessageTitle" -b "$MessageBody" \
-   mailto://myemail:mypass@gmail.com \
-   mastodons://{token}@{host} \
-   pbul://o.gn5kj6nfhv736I7jC3cj3QLRiyhgl98b \
-   tgram://{bot_token}/{chat_id}/
-
-### If you use the Apprise-API - Comment out the apprise command above.
-### Uncomment the AppriseURL and the curl-line below:
-# AppriseURL="http://apprise.mydomain.tld:1234/notify/apprise"
-# curl -X POST -F "title=$MessageTitle" -F "body=$MessageBody" -F "tags=all" $AppriseURL
+   ### Modify to fit your setup:
+   apprise -vv -t "$MessageTitle" -b "$MessageBody" \
+      mailto://myemail:mypass@gmail.com \
+      mastodons://{token}@{host} \
+      pbul://o.gn5kj6nfhv736I7jC3cj3QLRiyhgl98b \
+      tgram://{bot_token}/{chat_id}/

+   ### If you use the Apprise-API - Comment out the apprise command above.
+   ### Uncomment the AppriseURL and the curl-line below:
+   # AppriseURL="http://apprise.mydomain.tld:1234/notify/apprise"
+   # curl -X POST -F "title=$MessageTitle" -F "body=$MessageBody" -F "tags=all" $AppriseURL
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    printf "\nSending Apprise notification\n"
+
+    MessageTitle="$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 Apprise 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_apprise.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_APPRISE_VERSION/s/NOTIFY_APPRISE_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_APPRISE_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_apprise.sh update avialable:\n $NOTIFY_APPRISE_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_discord.sh
+++ b/notify_templates/notify_discord.sh
@@ -1,28 +1,43 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_DISCORD_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Modify to fit your setup - set DiscordWebhookUrl

-send_notification() {
-    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
-
-    echo "$UpdToString"
-    FromHost=$(hostname)
-
-    # platform specific notification code would go here
-    printf "\nSending Discord notification\n"
-
-    # Setting the MessageBody variable here.
-    MessageBody="🐋 Containers on $FromHost with updates available: \n$UpdToString"
+FromHost=$(hostname)

+trigger_notification() {
    # Modify to fit your setup:
    DiscordWebhookUrl="PasteYourFullDiscordWebhookURL"

    MsgBody="{\"username\":\"$FromHost\",\"content\":\"$MessageBody\"}"
-
    curl -sS -o /dev/null --fail -X POST -H "Content-Type: application/json" -d "$MsgBody" "$DiscordWebhookUrl"
-
 }

+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    printf "\nSending Discord notification\n"
+    # Setting the MessageBody variable here.
+    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 Discord dockcheck notification\n"
+    MessageBody="$FromHost - New version of dockcheck available: \n Installed version: $1 \nLatest version: $2 \n\nChangenotes: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_discord.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_DISCORD_VERSION/s/NOTIFY_DISCORD_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_DISCORD_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_discord.sh update avialable:\n $NOTIFY_DISCORD_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
+}
--- a/notify_templates/notify_generic.sh
+++ b/notify_templates/notify_generic.sh
@@ -1,16 +1,44 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_GENERIC_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # generic sample, the "Hello World" of notification addons

-send_notification() {
-  [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-  UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+FromHost=$(hostname)

-  FromHost=$(hostname)
-
-  # platform specific notification code would go here
-  printf "\n%bGeneric notification addon:%b" "$c_green" "$c_reset"
-  printf "\nThe following docker containers on %s need to be updated:\n" "$FromHost"
-  printf "$UpdToString"
+trigger_notification()  {
+    # Modify to fit your setup:
+    printf "\n$MessageTitle\n"
+    printf "\n$MessageBody\n"
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    # platform specific notification code would go here
+    printf "\n%bGeneric notification addon:%b" "$c_green" "$c_reset"
+    MessageTitle="$FromHost - updates available."
+    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 "\nGeneric 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_generic.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_GENERIC_VERSION/s/NOTIFY_GENERIC_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_GENERIC_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_generic.sh update avialable:\n $NOTIFY_GENERIC_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_gotify.sh
+++ b/notify_templates/notify_gotify.sh
@@ -1,13 +1,35 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+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.
 # Modify to fit your setup - set GotifyUrl and GotifyToken.

+FromHost=$(hostname)
+
+trigger_notification() {
+    # Modify to fit your setup:
+    GotifyToken="Your Gotify token here"
+    GotifyUrl="https://api.gotify/message?token=${GotifyToken}"
+
+    if [[ "$PrintMarkdownURL" == true ]]; then
+        ContentType="text/markdown"
+    else
+        ContentType="text/plain"
+    fi
+
+    JsonData=$( 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 "${GotifyUrl}" 1> /dev/null
+}
+
 send_notification() {
    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
-    FromHost=$(hostname)

    # platform specific notification code would go here
    printf "\nSending Gotify notification\n"
@@ -16,14 +38,24 @@ send_notification() {
    MessageTitle="${FromHost} - updates available."
    printf -v MessageBody "Containers on $FromHost with updates available:\n$UpdToString"

-    # Modify to fit your setup:
-    GotifyToken="Your Gotify token here"
-    GotifyUrl="https://api.gotify/message?token=${GotifyToken}"
-
-    curl \
-        -F "title=${MessageTitle}" \
-        -F "message=${MessageBody}" \
-        -F "priority=5" \
-        -X POST "${GotifyUrl}" 1> /dev/null
-
+    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 Gotify 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_gotify.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_GOTIFY_VERSION/s/NOTIFY_GOTIFY_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_GOTIFY_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_gotify.sh update avialable:\n $NOTIFY_GOTIFY_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_matrix.sh
+++ b/notify_templates/notify_matrix.sh
@@ -1,20 +1,13 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_MATRIX_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Modify to fit your setup - set MatrixServer, Room_id and AccessToken

-send_notification() {
-    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
-    FromHost=$(hostname)
-
-    # platform specific notification code would go here
-    printf "\nSending Matrix notification\n"
-
-    # Setting the MessageBody variable here.
-    MessageBody="🐋 Containers on $FromHost with updates available: \n$UpdToString"
+FromHost=$(hostname)

+trigger_notification() {
    # Modify to fit your setup:
    AccessToken="Your Matrix token here"
    Room_id="Enter Room_id here"
@@ -22,7 +15,37 @@ send_notification() {
    MsgBody="{\"msgtype\":\"m.text\",\"body\":\"$MessageBody\"}"

    # URL Example:  https://matrix.org/_matrix/client/r0/rooms/!xxxxxx:example.com/send/m.room.message?access_token=xxxxxxxx
-
    curl -sS -o /dev/null --fail -X POST "$MatrixServer/_matrix/client/r0/rooms/$Room_id/send/m.room.message?access_token=$AccessToken" -H 'Content-Type: application/json' -d "$MsgBody"
-
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    # platform specific notification code would go here
+    printf "\nSending Matrix notification\n"
+
+    # Setting the MessageBody variable here.
+    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 Matrix 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_matrix.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_MATRIX_VERSION/s/NOTIFY_MATRIX_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_MATRIX_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_matrix.sh update avialable:\n $NOTIFY_MATRIX_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_ntfy-sh.sh
+++ b/notify_templates/notify_ntfy-sh.sh
@@ -1,26 +1,57 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_NTFYSH_VERSION="v0.2"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Setup app and subscription at https://ntfy.sh
 # Use your unique Topic Name in the URL below.

-send_notification() {
-[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-UpdToString=$( printf '%s\\n' "${Updates[@]}" )
 FromHost=$(hostname)

-printf "\nSending ntfy.sh notification\n"
+trigger_notification() {
+    # Modify to fit your setup:
+    NtfyUrl="ntfy.sh/YourUniqueTopicName"

-MessageTitle="$FromHost - updates available."
-# Setting the MessageBody variable here.
-printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n$UpdToString"
-
-# Modify to fit your setup:
-NtfyUrl="ntfy.sh/YourUniqueTopicName"
-
-curl -sS -o /dev/null --show-error --fail \
-  -H "Title: $MessageTitle" \
-  -d "$MessageBody" \
-  $NtfyUrl
+    if [[ "$PrintMarkdownURL" == true ]]; then
+        ContentType="Markdown: yes"
+    else
+        ContentType="Markdown: no" #text/plain
+    fi

+    curl -sS -o /dev/null --show-error --fail \
+      -H "Title: $MessageTitle" \
+      -H "$ContentType"      \
+      -d "$MessageBody" \
+      "$NtfyUrl"
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    printf "\nSending ntfy.sh 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 ntfy.sh 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_ntfy-sh.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_NTFYSH_VERSION/s/NOTIFY_NTFYSH_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_NTFYSH_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_ntfy-sh.sh update avialable:\n $NOTIFY_NTFYSH_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_pushbullet.sh
+++ b/notify_templates/notify_pushbullet.sh
@@ -1,27 +1,51 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_PUSHBULLET_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Requires jq installed and in PATH.
 # Modify to fit your setup - set Url and Token.

-send_notification() {
-[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-UpdToString=$( printf '%s\\n' "${Updates[@]}" )
 FromHost=$(hostname)

-# platform specific notification code would go here
-printf "\nSending pushbullet notification\n"
-
-MessageTitle="$FromHost - updates available."
-# Setting the MessageBody variable here.
-printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n$UpdToString"
-
-# Modify to fit your setup:
-PushUrl="https://api.pushbullet.com/v2/pushes"
-PushToken="Your Pushbullet token here"
-
-# Requires jq to process json data
-jq -n --arg title "$MessageTitle" --arg body "$MessageBody" '{body: $body, title: $title, type: "note"}' | curl -sS -o /dev/null --show-error --fail -X POST -H "Access-Token: $PushToken" -H "Content-type: application/json" $PushUrl -d @-
+trigger_notification() {
+    # Modify to fit your setup:
+    PushUrl="https://api.pushbullet.com/v2/pushes"
+    PushToken="Your Pushbullet token here"

+    # Requires jq to process json data
+    jq -n --arg title "$MessageTitle" --arg body "$MessageBody" '{body: $body, title: $title, type: "note"}' | curl -sS -o /dev/null --show-error --fail -X POST -H "Access-Token: $PushToken" -H "Content-type: application/json" $PushUrl -d @-
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    # platform specific notification code would go here
+    printf "\nSending pushbullet notification\n"
+
+    MessageTitle="$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 pushbullet 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_pushbullet.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_PUSHBULLET_VERSION/s/NOTIFY_PUSHBULLET_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_PUSHBULLET_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_pushbullet.sh update avialable:\n $NOTIFY_PUSHBULLET_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/notify_pushover.sh
+++ b/notify_templates/notify_pushover.sh
@@ -1,22 +1,14 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_PUSHOVER_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Requires jq installed and in PATH.
 # Modify to fit your setup - set Url and Token.

-send_notification() {
-    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
-    FromHost=$(hostname)
-
-    # platform specific notification code would go here
-    printf "\nSending pushover notification\n"
-
-    MessageTitle="$FromHost - updates available."
-    # Setting the MessageBody variable here.
-    printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n$UpdToString"
+FromHost=$(hostname)

+trigger_notification() {
    # Modify to fit your setup:
    PushoverUrl="https://api.pushover.net/1/messages.json"
    PushoverUserKey="Your Pushover User Key Here"
@@ -30,3 +22,36 @@ send_notification() {
        -F "message=$MessageBody" \
        $PushoverUrl
 }
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    # platform specific notification code would go here
+    printf "\nSending pushover notification\n"
+
+    MessageTitle="$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 pushover 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: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_pushover.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_PUSHOVER_VERSION/s/NOTIFY_PUSHOVER_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_PUSHOVER_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_pushover.sh update avialable:\n $NOTIFY_PUSHOVER_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
+}
--- a/notify_templates/notify_slack.sh
+++ b/notify_templates/notify_slack.sh
@@ -0,0 +1,52 @@
+### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_SLACK_VERSION="v0.1"
+#
+# Copy/rename this file to notify.sh in the same directory as dockcheck.sh to enable the notification snippet.
+# Setu app and token at https://api.slack.com/tutorials/tracks/posting-messages-with-curl
+# Add your AccessToken and ChannelID below
+
+FromHost=$(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
+}
--- a/notify_templates/notify_smtp.sh
+++ b/notify_templates/notify_smtp.sh
@@ -1,4 +1,5 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_SMTP_VERSION="v0.1"
 # INFO: ssmtp is depcerated - consider to use msmtp instead.
 #
 # Copy/rename this file to notify.sh to enable the notification snipppet.
@@ -16,25 +17,19 @@ else
 	echo "No msmtp or ssmtp binary found in PATH: $PATH" ; exit 1
 fi

-send_notification() {
-[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-UpdToString=$( printf '%s\\n' "${Updates[@]}" )
 FromHost=$(hostname)

+trigger_notification() {
 # User variables:
 SendMailFrom="me@mydomain.tld"
 SendMailTo="me@mydomain.tld"
 SubjectTag="dockcheck"

-printf "\nSending email notification.\n"
-
-printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n\n$UpdToString"
-
 $MailPkg $SendMailTo << __EOF
 From: "$FromHost" <$SendMailFrom>
 date:$(date -R)
 To: <$SendMailTo>
-Subject: [$SubjectTag] Updates available on $FromHost
+Subject: [$SubjectTag] $MessageTitle $FromHost
 Content-Type: text/plain; charset=UTF-8; format=flowed
 Content-Transfer-Encoding: 7bit

@@ -42,3 +37,35 @@ $MessageBody

 __EOF
 }
+
+send_notification() {
+		[ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+		UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+		printf "\nSending email notification.\n"
+
+		MessageTitle="Updates available on"
+		# Setting the MessageBody variable here.
+		printf -v MessageBody "🐋 Containers on $FromHost with updates available:\n\n$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 email dockcheck notification.\n"
+
+		MessageTitle="New version of dockcheck available on"
+		# Setting the MessageBody variable here.
+		printf -v MessageBody "Installed version: $1 \nLatest version: $2 \n\nChangenotes: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_smtp.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_SMTP_VERSION/s/NOTIFY_SMTP_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_SMTP_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_smtp.sh update avialable:\n $NOTIFY_SMTP_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+		trigger_notification
+}
--- a/notify_templates/notify_telegram.sh
+++ b/notify_templates/notify_telegram.sh
@@ -1,19 +1,19 @@
 ### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
+NOTIFY_TELEGRAM_VERSION="v0.1"
 #
 # Copy/rename this file to notify.sh to enable the notification snippet.
 # Required receiving services must already be set up.
 # Modify to fit your setup - set TelegramChatId and TelegramToken.

-send_notification() {
-    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
-    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
-    FromHost=$(hostname)
+FromHost=$(hostname)

-    # platform specific notification code would go here
-    printf "\nSending Telegram notification\n"
+trigger_notification() {

-    # Setting the MessageBody variable here.
-    MessageBody="🐋 Containers on $FromHost with updates available: \n$UpdToString"
+    if [[ "$PrintMarkdownURL" == true ]]; then
+        ParseMode="Markdown"
+    else
+        ParseMode="HTML"
+    fi

    # Modify to fit your setup:
    TelegramToken="Your Telegram token here"
@@ -23,5 +23,36 @@ send_notification() {
    TelegramData="{\"chat_id\":\"$TelegramChatId\",\"text\":\"$MessageBody\",\"message_thread_id\":\"$TelegramTopicID\",\"disable_notification\": false}"

    curl -sS -o /dev/null --fail -X POST "$TelegramUrl/sendMessage" -H 'Content-Type: application/json' -d "$TelegramData"
-
+}
+
+send_notification() {
+    [ -s "$ScriptWorkDir"/urls.list ] && releasenotes || Updates=("$@")
+    UpdToString=$( printf '%s\\n' "${Updates[@]}" )
+
+    # platform specific notification code would go here
+    printf "\nSending Telegram notification\n"
+
+    # Setting the MessageBody variable here.
+    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 Telegram dockcheck notification\n"
+
+    MessageTitle="$FromHost - New version of dockcheck available."
+    # Setting the MessageBody variable here.
+    printf -v MessageBody "$FromHost - New version of dockcheck available.\n\nInstalled version: $1 \nLatest version: $2 \n\nChangenotes: $3"
+
+    RawNotifyUrl="https://raw.githubusercontent.com/mag37/dockcheck/main/notify_templates/notify_telegram.sh"
+    LatestNotifyRelease="$(curl -s -r 0-150 $RawNotifyUrl | sed -n "/NOTIFY_TELEGRAM_VERSION/s/NOTIFY_TELEGRAM_VERSION=//p" | tr -d '"')"
+    if [[ "$NOTIFY_TELEGRAM_VERSION" != "$LatestNotifyRelease" ]] ; then
+        printf -v NotifyUpdate "\n\nnotify_telegram.sh update avialable:\n $NOTIFY_TELEGRAM_VERSION -> $LatestNotifyRelease\n"
+        MessageBody="${MessageBody}${NotifyUpdate}"
+    fi
+
+    trigger_notification
 }
--- a/notify_templates/urls.list
+++ b/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
Author	SHA1	Message	Date
mag37	d80fba750f	quickfix printfs	2025-05-12 15:54:34 +02:00
mag37	7ce523c37d	added sponsor	2025-05-12 07:28:49 +02:00
mag37	8e444a688f	Update rework (#178 ) * first iteration rewriting the update logic * formatting fixes * Added an option to have compose up only target the specific container. Used with either -F flag, config variable or label. * Skipping update check on non-compose containers unless option is set * Versionbump Added new info and upped the version number.	2025-05-11 20:50:09 +02:00
mag37	ba107a424f	version bump	2025-05-07 11:31:34 +02:00
op4lat	e4b5aaeb9d	Enable markdown (#172 )	2025-05-07 11:29:21 +02:00
mag37	f4e51121fe	versionbump info: Permission checks, now compose up on whole stack, -M markdown option added.	2025-05-03 10:20:32 +02:00
mag37	7a0eda659b	Update README.md	2025-05-03 10:16:07 +02:00
mag37	77c0a4974d	Update urls.list added more	2025-05-03 09:56:21 +02:00
mag37	9d0eddbdcb	rolled back syntax error with unescaped dashes?	2025-05-03 00:20:39 +02:00
mag37	eb57b63a10	permission checks, dsm readme, markdown (#171 ) * added check for docker socket permissions * added sudo-check to pkg-manager * corrected variable typo and some printf colors * and newline.. * DSM extra readme added * final tweaks, DSM readme * added markdown to readme * added markdown support to telegram template * removed container specification from compose up -d This will ensure any dependant containers in the same stack will restart, others will be untouched. * Rearranged where the url enrichment happens	2025-05-02 21:40:24 +02:00
Tobias Diekel	e393a781cf	Add option to format releasenotes as markdown (#170 ) * feat: allow markdown formatting for gotify * feat: add option to cli args * fix: use markdown for missing urls * fix: do not print curl * fix: add empty line * bump template version --------- Co-authored-by: Tobias Diekel <td@diekel.eu>	2025-05-02 20:08:04 +02:00
jaaviercr	af202c9d6a	Update dockcheck.sh (#169 ) The script did not stop when there is an error recreating the container (in this case, docker-compose.yml was moved to other folder): ``` Now updating (1/1): nginx latest: Pulling from library/nginx Digest: sha256:c15da6c91de8d2f436196f3a768483ad32c258ed4e1beb3d367a27ed67253e66 Status: Image is up to date for nginx:latest docker.io/library/nginx:latest open /home/foo/bar/docker-compose.yml: no such file or directory All done! ``` Added an exit for for that case.	2025-05-01 17:49:41 +02:00
Ulices	dc1673a752	fix: move new line from `read` to `printf` (#164 )	2025-04-21 18:37:24 +02:00
firmlyundecided	a9e57d0737	Update urls.list (#162 ) added urls for homarr tautulli cleanuperr slskd bookstack lubelogger mealie	2025-04-12 11:14:07 +02:00
mag37	fff0c37fa4	Style and additions (#160 ) * correcting colors * hides progress bar in monochrome mode, added monochrome mode to config * Added config/option to auto self-update, use with caution! * use notification release notes url function for cli options as well * added the flag, reordered flags * change output order + add alpine pkgmngr * changed logic of default.config * added an extras section * modifying urls list, adding option flag * prometheus hotfix + minor tweaks * quick pkginstaller fix --------- Co-authored-by: Joachim Schuster <dev@joachimschuster.de>	2025-04-10 12:03:03 +02:00
mag37	0ea33366e4	prometheus hotfix	2025-04-09 18:21:07 +02:00
mag37	3a8571c625	fixes for odd unbound variables	2025-03-31 11:23:21 +02:00
mag37	710cbc118f	fix: Excludes unbound	2025-03-31 07:22:22 +02:00
mag37	68ec749c39	hotfixes	2025-03-30 22:58:47 +02:00
mag37	778df1de3c	PkgInstaller bug, reformatted	2025-03-30 22:17:15 +02:00
mag37	8dd1bba75b	Clean&refactor (#148 ) * cleaning spaces and consistent formatting * removed more subshells * progress bar cleanup * moved uservars to a .config file * rewritten options from yes/no to true/false * initialized default variables * added bash options: -euo pipefail, shopt -s nullglob and failglob * quoting variables, cleaning syntax, logic and order * unquoted some variables due to breakage * added exit on pull-fail * added new sponsor * added Slack template	2025-03-30 13:31:34 +02:00
mag37	b5c03a2caa	Merge pull request #139 from devzwf/main Update README.md	2025-03-18 05:38:59 +01:00
ZwF	9c4c79b885	Update README.md Add the -x option to the readme...	2025-03-17 22:20:06 -04:00
mag37	d9fe113225	updated gif	2025-03-17 08:39:09 +01:00
mag37	0a9d60f4df	Merge pull request #137 from mag37/notify_versioning notify-template versioning	2025-03-16 20:56:11 +01:00
mag37	c57923f152	versionbump	2025-03-16 20:54:34 +01:00
mag37	fd1769c30f	added versions + version checks to all templates	2025-03-16 20:47:46 +01:00
mag37	965f2dd825	first change to DSM	2025-03-14 20:36:07 +01:00
mag37	48057dfc66	notify and xargs info added Added info about notifying on new dockcheck updates and a info block about async/xargs.	2025-03-09 10:19:22 +01:00
mag37	98e80854be	Merge pull request #135 from mag37/dockcheck_upd_notify rewrite of notify-templates	2025-03-09 10:00:57 +01:00
mag37	dcbdb5becd	minor fixes	2025-03-09 09:57:45 +01:00
mag37	8fc4f41c49	version bump and change notes	2025-03-07 21:11:01 +01:00
mag37	9b0b6137a3	fixed typos	2025-03-07 21:05:58 +01:00
mag37	7ed4286fe7	merged updates from main	2025-03-07 20:47:43 +01:00
mag37	bf1e78d2ff	hotfix changelog	2025-02-26 22:04:05 +01:00
mag37	9fa398e553	Merge pull request #132 from mag37/xargs_hotfix Made MaxAsync=1 the default - edit to change. Added -x option to pass a MaxAsync value on runtime. Made it possible to disable xargs -P-flag by setting MaxAsync=0 or passing -x 0 option.	2025-02-26 21:42:58 +01:00
mag37	9ef2ea7135	versionbump + changenotes	2025-02-26 21:39:33 +01:00
mag37	8c3b899332	async hotfix, defaults to 1 subprocess, added -x option to set custom async value	2025-02-26 21:23:15 +01:00
mag37	8110cd8892	Update README.md	2025-02-25 21:30:41 +01:00
mag37	502a167919	Update README.md	2025-02-25 21:30:20 +01:00
mag37	06ea7fff6d	newline and rephrasing	2025-02-15 13:35:47 +01:00
mag37	c436def448	typo	2025-02-13 21:34:03 +01:00
mag37	96ebe079a4	removed 'not source' message as its optional	2025-02-13 21:28:21 +01:00
mag37	111cb955b1	finalizing new notification structure	2025-02-10 19:46:23 +01:00
mag37	71967277aa	new notification structure	2025-02-09 22:01:08 +01:00
mag37	1548b03a9e	added else with inclusion of new function, rewrote 2 templates for testing	2025-02-07 20:47:01 +01:00