From 99a83f318aff9472b4bc9fde575a82e10dfb78f2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kov=C3=A1cs=20Zolt=C3=A1n?= <kovacsz@marcusconsulting.hu>
Date: Fri, 22 May 2026 10:45:21 +0200
Subject: [PATCH] feat: Implemented a notification service for unhealthy
 containers.

---
 .metadata                            | Bin 22705 -> 22778 bytes
 .templates/bin/containermon_redeploy |  74 +++++++++++++++++++++++++++
 .templates/bin/watchtower_redeploy   |   1 +
 3 files changed, 75 insertions(+)
 create mode 100755 .templates/bin/containermon_redeploy

diff --git a/.metadata b/.metadata
index 59cbf4c2e1a0c3e1c8d56ee3801ba8067e7f0f69..fa1f92205832aed2ec6b54142e75cdf8d553973d 100644
GIT binary patch
delta 152
zcmdnEk@43?#tq9jc=+c0$YcP5<MX;%CpQXcPYz(?pJc?l`6tISj>!u4d_2kdc_oRN
zd8tLY`FWG&q{Vn#_VH$cbcFa;noizmAUY{RW3mIM$>an^!O17JcsC~sUFP7qAu0e?
n<Tgc-9i(XT12yr@Inw1Ss4@px^d~n2a7>;r!?oGKp-}<=FLp3R

delta 96
zcmeyhk#XZj#tq9jc(P~y$YcP5gDV$^Pi_>@o*cl&KY4=%@8+Kz&p0M;aFCk3L7RVa
zfB^62I3amXmdV+-Gbev^GTFRUx?F`PM&K)0^O=h={F4u|=udtiBec2Fp-}<=4+<nd

diff --git a/.templates/bin/containermon_redeploy b/.templates/bin/containermon_redeploy
new file mode 100755
index 0000000..a650b16
--- /dev/null
+++ b/.templates/bin/containermon_redeploy
@@ -0,0 +1,74 @@
+#!/bin/bash
+#
+# https://github.com/containrrr/shoutrrr/tree/main
+# https://github.com/RafhaanShah/Container-Mon
+#
+# Email notification settings below assume the gateway acting
+# as a smarthost and Docker version v20.10+ is required.
+
+image="ghcr.io/rafhaanshah/container-mon"
+instance="containermon"
+networks=""
+outfile=""
+volume=""
+
+MSG_MISSINGDEP="Fatal: missing dependency"
+
+# Checks the dependencies.
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in cat dirname docker hostname
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+
+# Stops and removes the container (if necessary).
+if [ -n "$("$DOCKER" ps -q -f name=$instance)" ]
+then "$DOCKER" stop "$instance"; fi
+if [ -n "$("$DOCKER" ps -a -q -f name=$instance)" ]
+then "$DOCKER" rm "$instance"; fi
+
+# Checks for an upgrade.
+$DOCKER pull "$image"
+
+# Creates the container.
+$DOCKER create \
+    -e TZ="Europe/Budapest" \
+    -e CONTAINERMON_CHECK_EXIT_CODE=false \
+    -e CONTAINERMON_CHECK_STOPPED=false \
+    -e CONTAINERMON_CRON="*/2 * * * *" \
+    -e CONTAINERMON_FAIL_LIMIT=1 \
+    -e CONTAINERMON_NOTIFICATION_URL="smtp://host.docker.internal:25/?from=$USER@$("$HOSTNAME" -f)&to=$USER@$("$HOSTNAME")&subject=[[Containermon $(hostname)]]" \
+    -e CONTAINERMON_HEALTHY_NOTIFICATION_URL="smtp://host.docker.internal:25/?from=$USER@$("$HOSTNAME" -f)&to=$USER@$("$HOSTNAME")&subject=[[Containermon $(hostname)]]" \
+	-e CONTAINERMON_NOTIFY_HEALTHY=true \
+    -e CONTAINERMON_MESSAGE_PREFIX="" \
+    -e CONTAINERMON_USE_LABELS=true \
+    -v /var/run/docker.sock:/var/run/docker.sock \
+    --add-host="host.docker.internal:host-gateway" \
+    --restart unless-stopped \
+    --label "com.centurylinklabs.watchtower.enable=true" \
+    --name $instance $image
+
+# Connects it to the network(s).
+if [ -n "$networks" ]; then
+    for network in $networks
+    do
+        # Checks the network, creates it if necessary.
+        if [ -z "$("$DOCKER" network ls -q -f name=$network)" ]
+        then "$DOCKER" network create -d bridge "$network"; fi
+        # Then connects.
+        $DOCKER network connect $network $instance
+    done
+fi
+
+# Finally launches it.
+$DOCKER start $instance
+# Adds the time zone handler package to the running container.
+$DOCKER exec  $instance sh -c "apk add tzdata"
+if [ -n "$outfile" -a -w "$("$DIRNAME" "$outfile")" ]; then
+    # Sets a background process to collect the image's output.
+    # This process will automatically terminate when the image stops.
+    "$DOCKER" logs -f $instance >>"$outfile" 2>&1 &
+fi
diff --git a/.templates/bin/watchtower_redeploy b/.templates/bin/watchtower_redeploy
index 10c9015..4cc697f 100755
--- a/.templates/bin/watchtower_redeploy
+++ b/.templates/bin/watchtower_redeploy
@@ -58,6 +58,7 @@ $DOCKER create \
     --add-host="host.docker.internal:host-gateway" \
     --restart unless-stopped \
     --label "com.centurylinklabs.watchtower.enable=true" \
+    --label "containermon.enable=true" \
     --name $instance $image
 
 # Connects it to the network(s).