feat: support tempalte parameterization for helm

[ericzzzzzzz]

Fixes: #8912

Description

• support comment-style template parameterization for helm
• The new # from-param will take effect on helm rendered manifests result, if # from-param value is provided, and that means it will override original helm native templated value provided though value file. If not value is not provide, the helm render behaves as the same as no # from-param added in templated files.

[codecov]

Codecov Report

Merging #8911 (b83cfce) into main (290280e) will decrease coverage by 6.65%.
The diff coverage is 48.91%.

@@            Coverage Diff             @@
##             main    #8911      +/-   ##
==========================================
- Coverage   70.48%   63.84%   -6.65%     
==========================================
  Files         515      624     +109     
  Lines       23150    31815    +8665     
==========================================
+ Hits        16317    20311    +3994     
- Misses       5776     9976    +4200     
- Partials     1057     1528     +471     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/completion.go	13.04% <0.00%> (-1.25%)	⬇️
cmd/skaffold/app/cmd/config/list.go	65.21% <ø> (ø)
cmd/skaffold/app/cmd/config/set.go	88.72% <ø> (ø)
cmd/skaffold/app/cmd/config/util.go	54.28% <ø> (ø)
cmd/skaffold/app/cmd/credits.go	100.00% <ø> (ø)
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/generate_pipeline.go	60.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_modules.go	65.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_profiles.go	66.66% <ø> (ø)
... and 40 more

... and 415 files with indirect coverage changes

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

[ericzzzzzzz]

kokoro ci is broken, not related to changes.

[adriantr]

@ericzzzzzzz can you confirm that this should work with skaffold render --set <param>=<value> with the latest skaffold version?

I'm having troubles with getting it to work:

- name: 'ADRIAN_TEST'
  value: {{ .Values.backendTimeout | quote }} # from-param: ${adrian}

still ends up with templated value from .Values instead of the one passed through --set

[ericzzzzzzz]

hi @adriantr

To use template parameterization for helm

• the render command must be passed with --build-artifacts flag to provide build results for post render stage, as the replacement happens on helm post render stage and if no build artifacts are provided the stage won't happen.
• in skaffold config, manifests stanza must be used for helm instead of relying on skaffold to populate information under deploy sanza to manifests stanza -- The population is a historial problem.