Add an example for helm chart with multiple images

[filipenf]

Shows how to override multiple images in a helm template

Description
Documentation-only changes: Add a snippet showing how to override multiple images from skaffold-built artifacts. I was testing with this and thought an example in the doc would be useful. Thoughts?

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[aaron-prindle]

Thanks for the submission @filipenf! Currently you have updated:
docs/content/en/docs/pipeline-stages/deployers/helm.md

We have recently forked our docs into a docs and a docs-v2 folder. Can you also update the
docs-v2/content/en/docs/pipeline-stages/deployers/helm.md
file with this change as well?

Additionally our repo has a unit test to enforce Conventional Commits. Can you ammend your commit message to add a prefix - docs: eg:
docs: Add an example for helm chart with multiple images

Once these are resolved we can merge!

[filipenf]

@aaron-prindle thanks for the info, I just checked the helm.md in the v2 path you mentioned and I noticed that it is missing a few of the sections from the original file. Would you also like me to match those or should I just add the new bits?

[aaron-prindle]

@filipenf just the new bits thanks! I believe the other differences are inherent to Skaffold v1 vs v2 (so they should be different)

[filipenf]

@aaron-prindle I added just the new bits and updated the commit message, however I noticed that the whole ## Image Configuration section is missing in the v2 doc. Is that expected?

[aaron-prindle]

@filipenf ah, I see now. Yes, if you wouldn't mind adding that section as well here that would be great. Thanks for the extra analysis here!

[aaron-prindle]

LGTM! Thanks!

[codecov]

Codecov Report

Merging #7874 (aabee23) into main (290280e) will decrease coverage by 3.80%.
The diff coverage is 53.94%.

@@            Coverage Diff             @@
##             main    #7874      +/-   ##
==========================================
- Coverage   70.48%   66.67%   -3.81%     
==========================================
  Files         515      593      +78     
  Lines       23150    28698    +5548     
==========================================
+ Hits        16317    19135    +2818     
- Misses       5776     8157    +2381     
- Partials     1057     1406     +349     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/credits/export.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/deploy.go	40.90% <0.00%> (-12.94%)	⬇️
cmd/skaffold/app/cmd/test.go	44.44% <0.00%> (ø)
cmd/skaffold/skaffold.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/inspect_tests.go	62.50% <14.28%> (-1.14%)	⬇️
cmd/skaffold/app/cmd/render.go	35.48% <18.18%> (-5.90%)	⬇️
cmd/skaffold/app/cmd/lsp.go	28.12% <28.12%> (ø)
cmd/skaffold/app/cmd/run.go	64.28% <33.33%> (-9.63%)	⬇️
cmd/skaffold/app/cmd/fix.go	56.41% <37.50%> (-20.07%)	⬇️
cmd/skaffold/app/cmd/verify.go	41.17% <41.17%> (ø)
... and 366 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[iosifnicolae2]

When using schema v3 artifactOverrides does not exist, instead I've used setValueTemplates as follow:

manifests:
  helm:
    releases:
    - setValueTemplates:
        firstContainerImage.repo: '{{.IMAGE_REPO}}'
        firstContainerImage.tag: '{{.IMAGE_TAG}}'
        secondContainerImage.repo: '{{.IMAGE_REPO2}}'
        secondContainerImage.tag: '{{.IMAGE_TAG2}}'
        ...