Can the "place-tools" and "place-scripts" init-containers merge into one init-container?

[Tomcli]

Feature request

Our team is trying to optimize our Tekton pipelines to have fewer delays. We found out that many Tekton tasks need to run the "place-tools" and "place-scripts" init-containers to set all the Tekton tools and wrap the user scripts. Since some of our machines may have slow container startup time, we want to see can these init-containers merge into one so we can save 1-2s in each of our tasks.

/cc @pritidesai @afrittoli

Use case

[pritidesai]

@rafalbigaj reported, for about 26 seconds of workload, initiating place-tools container is causing an average of 2 seconds of delay after the image is pulled from the container registry.

[afrittoli]

#4352 introduced a new init container.
If we are going to merge the various init containers into one, we might consider including that one too.

[abayer]

/assign @vdemeester

[tekton-robot]

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[vdemeester]

/lifecycle frozen
Still planning to work on this 👼🏼