[SOLVED] Bash script to start stop based on status - Crontab

[turk00111]

Hello,

I am trying to start/stop vm's based off status of other VM's. However, I am unable to get the script to work.

Here is my bash script:

#!/bin/bash

if [ "$(qm status 107)" != "status: running" ]; then
    /usr/sbin/qm start 107
    /usr/sbin/qm shutdown 106
fi

Cron tab:

* * * * * /bin/bash /var/scripts/checkvm.sh

When I run this via the shell it works just fine and reports the correct status. When it is ran via crontab it does not report the qm status 107 correctly. When I echo and output to a file it is blank and does not have "status: running".

I am hoping someone on this forum may know what I am doing wrong and help pulling the correct status to be used in a script.

 

[celemine1gig]

You might be interested in looking into the "hookscript" feature:
https://pve.proxmox.com/pve-docs/pve-admin-guide.html (search for "hookscript")

 

[bbgeek17]

You are correctly using absolute paths inside IF, but for some reason not in IF condition.
Cron does not load user variables so it has no PATH.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[turk00111]

You are correctly using absolute paths inside IF, but for some reason not in IF condition.
Cron does not load user variables so it has no PATH.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

Yes, I tried it with the absolute path before but it didn't work. However it wouldn't work.

I just got it working and typing out what I did. Your comment led me to the idea.

 

[turk00111]

I just solved this thanks to bbgeek17. Thank you again!

here is my working bash file.

#!/bin/bash

vm107=`/usr/sbin/qm status 107`

if [ "$vm107" != "status: running" ]; then
    /usr/sbin/qm start 107
    /usr/sbin/qm shutdown 106
fi