[open0]

I wrote my own remote scriptrunner thing because I hate Ansible so much.

[brightball]

I did this before with perl’s SSH::Batch. You can install it from CPAN and get really simple ability to run code on groups of servers in parallel. Works great.

Eventually I switched to Ansible because it made the more complicated things a lot simpler.

[dheera]

I use bash scripts too on almost all my systems. Containerize deployments. Dockerfiles are a godsend and work indefinitely.