[Feature] Script allow run process in background

[lockwobr]

Problem Statement

Today if you launch a process in the background from script with the way works, it ends up hanging the test because the process is not put to the background.

Solution Description

Either added a new primitive to start a process in the background, or maybe a better option is to add a flag to script allow forking a process to the background.

Alternatives

No response

Additional Context

No response

Slack discussion

No response

Research

• I have searched other issues in this repository and mine is not recorded.

[eddycharly]

Thanks for opening the issue @lockwobr !
Can you elaborate on the use case ?

[lockwobr]

For testing I build my operator with coverage so I can merge my chainsaw test code coverage with my unit test code coverage. Tell now I just run the operator in background before running the chainsaw tests, but I need to test migration code between versions of the operator, so I want to be able to in middle of the chainsaw test kill the old and start a new version of the operator binary to trigger the migration code, and also capture the code coverage stats. There are ways around this but way more involved.

[lockwobr]

Also to be more clear. When you try to do something like this in a script it will hang because its not running in the background.

nohup ${LOCALBIN}/manager > ${REPORTING}/int/std.out &
echo "$!" > ${PID}

[nvetel]

+1