[GITOPS-5120] Add e2e test for write-back GIT repository as annotation.

[dkarpele]

Add e2e test for write-back GIT repository as annotation.

1. 007-git-repository: use local kustomize app with local image. Annotations:

• write-back-method: git
• git-repository:local_repo

03-run-updater-revert.yaml reverts the changes made to local git repo to make all tests consistent. Without it the next run of this test or any other test that uses 001-simple-kustomize-app will fail.

2. 008-git-repository-helm: use local helm app with public image. Annotations:

• write-back-method: git
• git-repository:local_repo.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.49%. Comparing base (44fef15) to head (c4ab12b).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1068   +/-   ##
=======================================
  Coverage   63.49%   63.49%           
=======================================
  Files          15       15           
  Lines        2326     2326           
=======================================
  Hits         1477     1477           
  Misses        758      758           
  Partials       91       91           

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[chengfang]

any reason this test does not undo the changes to 008-simple-helm-app/.argocd-source-image-updater-008.yaml, similar to 007-git-repository?

[dkarpele]

The difference between test 7 and 8 is in argocd-image-updater.argoproj.io/write-back-target: kustomization in test 7. Test 7 changes 001-simple-kustomize-app/kustomization.yaml file itself while test 8 adds file .argocd-source-image-updater-008.yaml.

Test 8 was originally copied from Test 2. Test 2 also doesn't have revert git commit back step. Because of the file name (with 008) it doesn't break other tests in the test suite. I can work on the implementation of the revert step for Test 8 and Test 2 in this PR.

[dkarpele]

So, I added a revert step only to Test 8.
Test 2 doesn't check image name equality that's why Test 2 passes always - even after retry. So reverting commit for Test 2 is just not necessary.