[ClusterLabs] Bash automation for Pacemaker, Corosync, DRBD, GFS, CLVM, and LCMC

[Jehan-Guillaume de Rorthais]

Hi Travis,

Le Sun, 23 Mar 2025 18:23:50 -0700,
Travis Bean <tbean74 at gmail.com> a écrit :

> I developed a Bash script to automate the installation and
> configuration of open-source software (i.e., launchpad.net/linuxha). I
> want to make sure the syntax of this script is perfect so I can use it
> as a teaching tool to educate people about Linux.
> […]when I first got this custom setup successfully working on two virtual
> machines, it was really a miracle.
> 
> I haven’t been able to thoroughly test this Bash script out to make
> sure it functions as intended for all environments, so I need feedback
> to make sure I haven’t overlooked something with my current syntax.

I should admit this is a huge amount of work. What a patience, cheers!

However, at least in regard with the Pacemaker/Corosync parts, it seems to me
you actually wrote in bash what tools like pcs/pcsd or crmsh are already doing
quite nicely. But, based on https://code.launchpad.net/linuxha, it seems your
script is way older than your email on this list, as I can find reference of old
technologies, your "Copyfree 2016" and indeed commits from 2016. I'm not
sure when pcs/pcsd appeared…

Anyway, nowadays, I would use Ansible and pcs/pcsd to build such clusters. It's
easier, faster, safer.

If you really want to maintain such a script for some reason, in regard with
your bash syntax, maybe you could start feed your script to "shellcheck" first.
Then, it all depend on your coding style, the bash-ism you are ready to accept,
how strict you want to be, etc…

Regards,