Documentation - CI/CD Tutorial End to End with Skaffold

[tvvignesh]

Fixes: #346

Description
This PR add documentation for CI/CD end to end with skaffold

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[tvvignesh]

@googlebot I signed it!

[codecov]

Codecov Report

Merging #4909 (0626bbe) into master (c6260e8) will increase coverage by 0.22%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4909      +/-   ##
==========================================
+ Coverage   71.96%   72.18%   +0.22%     
==========================================
  Files         357      365       +8     
  Lines       12327    12842     +515     
==========================================
+ Hits         8871     9270     +399     
- Misses       2799     2881      +82     
- Partials      657      691      +34     

Impacted Files	Coverage Δ
pkg/skaffold/schema/v2beta8/upgrade.go	88.88% <0.00%> (-11.12%)	⬇️
pkg/skaffold/errors/err_map.go	90.56% <0.00%> (-9.44%)	⬇️
pkg/skaffold/build/gcb/kaniko.go	73.33% <0.00%> (-9.02%)	⬇️
pkg/skaffold/deploy/kpt/kpt.go	75.17% <0.00%> (-8.57%)	⬇️
pkg/skaffold/build/gcb/buildpacks.go	92.00% <0.00%> (-8.00%)	⬇️
pkg/skaffold/initializer/build/resolve.go	79.16% <0.00%> (-5.45%)	⬇️
pkg/skaffold/runner/load_images.go	94.73% <0.00%> (-5.27%)	⬇️
...g/skaffold/kubernetes/portforward/entry_manager.go	92.00% <0.00%> (-3.84%)	⬇️
pkg/skaffold/build/local/prune.go	70.11% <0.00%> (-3.38%)	⬇️
pkg/skaffold/docker/parse.go	84.06% <0.00%> (-3.22%)	⬇️
... and 68 more

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[gsquared94]

Please take a look @viglesiasce

[MarlonGamez]

Thanks for submitting this PR @tvvignesh! I've taken a first pass at it, mostly just commenting on nits related to readability and language, not so much on content. Let me know what you think of my suggestions :)

[tvvignesh]

@MarlonGamez Thanks a lot for your suggestions. Have made all the necessary changes. Let me know if there is anything else to be done.

[tejal29]

Thanks @tvvignesh And @MarlonGamez for taking this forward!

[MarlonGamez]

@tvvignesh thanks a bunch for making the changes :) One thing I would say is that I think the step labels should be h2s (like step 6 was previously), just to make a bit more clear where each step starts

[tvvignesh]

I will spend sometime next week on this and try to do a rewrite taking into account @briandealwis 's suggestions. Please leave all your suggestions here. Thanks.

[MarlonGamez]

hey @tvvignesh, have you had the chance to work on this a bit? No rush, just curious :) thanks again for working on this!

[tvvignesh]

hey @tvvignesh, have you had the chance to work on this a bit? No rush, just curious :) thanks again for working on this!

@briandealwis @MarlonGamez Hi. Pushed the changes. Have tried to address all the feedback as given above.

Hope this is okay.

[nkubala]

in interest of not blocking this indefinitely, let's merge it for now and we can make edits later as we need them.

this would be a great addition to #5031 if it ever gets created.

thanks for all your work on this one @tvvignesh!

addressed

[tvvignesh]

@nkubala Forgot to inform this. I did not update https://github.com/GoogleContainerTools/skaffold/blob/master/docs/content/en/docs/tutorials/_index.md linking to this tutorial MD file deliberately since I wanted to leave it to you to decide where to link this in the website if needed.