Change workspace integration test from core-dev to preview environment

[jenting]

Description

Since the preview environment is now the default environment that the werft job deploy to.
Change the workspace integration test being able to run against preview environment.

The werft job is still running in the core-dev context werft namespace though.
I did not find a way to make it possible that werft job being able to run on another context unless we run the integration test job by manually applies the yaml manifest to preview-environment context default namespace within the werft job.
But it also means we have to copy the related secrets from core-dev to preview environment context.

Therefore, I give up to find a simple way to make the integration test pod being able to run in preview-environment context. Instead, make the integration test being able to run on any machine against the preview-environment context default namespace. But it also mean that we need to fix these two integration tests #9953 since previously design only allow the test be passed when the integration test pod running within the same cluster. (I believe the integration test should be passed regardless of the environment in which it is executed).

In general, it runs go test ... in core-dev context werft namespace against preview-environment context default namespace. It's like what we run go test .. locally against preview-environmentcontextdefault` namespace.

Related Issue(s)

Fixes #9749

How to test

werft run github -j .werft/workspace-run-integration-tests.yaml

Reference werft job https://werft.gitpod-dev.com/job/gitpod-custom-jenting-change-workspace-nightly-9749.55
Reference slack notification https://gitpod.slack.com/archives/C03E52788SU/p1652399601400079

Release Notes

None

Documentation

N/A

[princerachit]

@jenting can you describe the changes you made in this PR. I see you removed a file why so? What was the reason of getting rid of the args and other fields in the YAML?

[jenting]

@jenting can you describe the changes you made in this PR. I see you removed a file why so? What was the reason of getting rid of the args and other fields in the YAML?

I've update the PR description, hope it clear to understand 🙏

[jenting]

/hold

[csweichel]

I believe the integration test should be passed regardless of the environment in which it is executed

💯 🎯

[jenting]

/unhold

Ready to review

[jenting]

/werft run

👍 started the job as gitpod-build-jenting-change-workspace-nightly-9749.68
(with .werft/ from main)

[jenting]

/werft run

👍 started the job as gitpod-build-jenting-change-workspace-nightly-9749.70
(with .werft/ from main)

[sagor999]

LGTM except for minor nit.

/hold

feel free to remove hold when\if addressed that nit.

[jenting]

/unhold