From 5db23fb0e5a8be7a1abd0d1b9344350c4d6372c6 Mon Sep 17 00:00:00 2001
From: YuruC3 <98943911+YuruC3@@users.noreply.github.com>
Date: Thu, 8 May 2025 00:00:48 +0200
Subject: [PATCH] Added newest edits.

---
 README.md       | 30 ++++++++++++++++++++++++++++--
 bck_watchdog.sh | 39 +++++++++++++++++++++++++++++++++++++++
 watchdog.sh     |  2 +-
 3 files changed, 68 insertions(+), 3 deletions(-)
 create mode 100644 bck_watchdog.sh

diff --git a/README.md b/README.md
index 53c366c..51669a3 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ A bash script working as a helthcheck for a VM.
 
 Takes in a single argument in form of VMID.
 
+`./watchdog.sh <REPLACE_WITH_VMID>` 
+
 ## Requirements
 Copy/clone code into your directory 
 
@@ -11,9 +13,33 @@ Add exec permission on watchdog.sh
 
 `chmod u+x /path/to/watchdog.sh`
 
-## Examples
+## What's bck_watchdog
+It's for a pretty specific usecase when you have HA opnsense running in 2 vm's. 
 
-`./watchdog.sh <REPLACE_WITH_VMID>` 
+If both VM's go down then this would start a third "emergency" VM running OPNSense.
+
+## Examples
 
 `./watchdog.sh 100` 
 
+### Crontab
+
+` 
+*/5 * * * * /bin/bash /path/to/watchdog.sh 100
+` 
+
+This will check every 5 minutes if a VM us runninig.
+
+### Crontab with bck_watchdog
+
+```
+*/5 * * * * /bin/bash /path/to/watchdog.sh 100
+
+*/2 * * * * /bin/bash /path/to/watchdog.sh 1003
+
+*/2 * * * * /bin/bash /path/to/watchdog.sh 1004
+```
+
+This will check the HA 2 nodes every 2 minutes and backup one every 5 minutes.
+
+where 1003 and 1004 are main HA nodes and 100 is the backup.
\ No newline at end of file
diff --git a/bck_watchdog.sh b/bck_watchdog.sh
new file mode 100644
index 0000000..44f8692
--- /dev/null
+++ b/bck_watchdog.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+ORIGINGW=<VM_ID>
+GW1=<VM_ID>
+GW2=<VM_ID>
+
+# check if $ORIGINGW exists
+
+if [[ -z $ORIGINGW ]]
+then
+    echo "Pass a VMID."
+    exit 1
+fi
+
+#------------------------------------------------
+# CONSTS
+VMID="$1"
+QMSTAT="$(/usr/sbin/qm status $ORIGINGW )" > /dev/null
+
+#------------------------------------------------ 
+# CODE
+
+# check if container exists
+if  echo $QMSTAT | grep  "not exist" 
+then
+    printf "\nNo such VM!\n"
+    exit 1
+fi
+
+
+#VMSTATE=$(echo "$QMSTAT" | awk '{print $2}')
+#echo $VMSTATE
+
+if [[ $(/bin/bash /root/./vm_check.sh $GW1) == 1 ]] && [[ $(/bin/bash /root/./vm_check.sh $GW2) == 1 ]]
+then
+	#/usr/sbin/qm start "$VMID"
+	echo "EMERGENCY START OF ORIGINAL GATEWAY"
+	exit 0
+fi
diff --git a/watchdog.sh b/watchdog.sh
index 15d7380..e2392df 100644
--- a/watchdog.sh
+++ b/watchdog.sh
@@ -39,7 +39,7 @@ case $VMSTATE in
         printf "\nStarting VM %s" "$VMID\n"
         #echo ""  # To lazy to fix output spacing 
         /usr/sbin/qm start "$VMID"
-        exit 0
+        exit 1
 
     ;;