Folks, did Anyone performed DB or Backend Automation on IRIS Dataplatform?

Can you give an example?

Do you mean something like this?

iris session ${INST} -U %sys << EOF
w "stopping the mirror 1 is sucess: " zw ##class(SYS.Mirror).StopMirror("MIRROR") h
EOF

If the question is regarding automated setup configuration of services:

A recent advancement if you are using Linux / Unix platform is to use cpf merge.
https://docs.intersystems.com/iris20231/csp/docbook/DocBook.UI.Page.cls?...
This can manage instance configuration file and CSP applications.

CSP Merge can be applied on the first startup of service in Docker provisioning.

Before that, and for Windows currently, have successfully implemented %INSTALLER classes to reconfigure vanilla servers for application migration and usage.
https://docs.intersystems.com/iris20231/csp/docbook/Doc.View.cls?KEY=GCI...

what's your expectation?