test: run linux package tests nightly against latest contrib main [new]

[mowies]

Supersedes #760

Changes compared to the previously reverted PR:

• adapted the base-release.yaml to the changed gorelease setup for otelcol-contrib

Copied description from old PR:

This PR enables nightly testing of the otelcol-contrib linux packages based on the latest main branch version of otelcol-contrib built in https://github.com/open-telemetry/opentelemetry-collector-contrib.
This change was made possible by splitting the otelcol-contrib gorelease config into 2 separate files, one for building and one for packaging/archives/docker images/etc.
(The split goreleaser build is a goreleaser pro feature)

Using the split building approach was the only viable option to achieve this. I did lots of research on this, it was talked about in the Collector SIG meeting and I also asked the GoReleaser folks for their help.

Consequences of this change:

• better testing
• slightly less maintainability of the goreleaser files and generator code for otelcol-contrib since they have special handling now

Fixes #659

[mowies]

I ran a successful test release on my fork. Workflow run links and test release below:

• k8s
• OTLP
• Core
• Contrib
• Builder (failed because of the missing cmd/builder/ tag during testing but nothing changed there so I will work upstream)
• Test release

[mx-psi]

For my understanding I would like to know what parts were not testable without the pro key

[mowies]

We use quite a few pro-only features and I specifically made use of a new one in my PR: Importing of prebuilt binaries. Specifically, I either build the otelcol-contrib from scratch or I download the prebuilt binary from the contrib repo and use it.

Other pro-only features we use (probably not a complete list):

• Split and Merge
• Windows MSI installers
• Global hooks
• Monorepo support

[mowies]

In this case testing was much easier with a pro key to be able to actually run a close-to-reality version of the setup from start (pushing a tag) to finish (the actual github release).

[mowies]

after a bit of time in rebase-hell this PR should be ready again for merging 🚀

[mx-psi]

@TylerHelmuth @atoulme can you take a look at this?

[mx-psi]

Re-approving

[mowies]

i had to downgrade the package tests from ubuntu-latest (as of a few days ago 24.04) to 22.04 because of some issue that i can't figure out right now (see this run). i can file a separate issue for that, but i think it's mostly related to the container setup of the package tests

[mx-psi]

@atoulme will merge after this release is done if there are no further comments

[mowies]

ok i manually reverted the previous rebase since #784 happened. PR should be ready again.