Add a tutorial for using AWS ECR with registry-creds addon

[prasadkatti]

fixes #5753

This tutorial describes how one can use the registry-creds addon to configure credentials for AWS ECR in order to be able to pull images onto the minukube cluster.

I have used this PR to learn more about the registry-creds addon. So please take note of that while reviewing. :)

P.S. Is there a linter for markdown? Do I need to add a link to this page on any other (index) page?

[k8s-ci-robot]

Hi @prasadkatti. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: prasadkatti
To complete the pull request process, please assign priyawadhwa
You can assign the PR to them by writing /assign @priyawadhwa in a comment when ready.

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[minikube-bot]

Can one of the admins verify this patch?

[codecov-io]

Codecov Report

Merging #7245 into master will increase coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7245      +/-   ##
==========================================
+ Coverage   37.88%   38.04%   +0.16%     
==========================================
  Files         147      147              
  Lines        9065     9087      +22     
==========================================
+ Hits         3434     3457      +23     
+ Misses       5206     5204       -2     
- Partials      425      426       +1     

Impacted Files	Coverage Δ
cmd/minikube/cmd/status.go	20.49% <0.00%> (-0.17%)	⬇️
cmd/minikube/cmd/stop.go	0.00% <0.00%> (ø)
pkg/minikube/out/style.go	91.66% <0.00%> (ø)
pkg/minikube/driver/driver.go	64.44% <0.00%> (+2.74%)	⬆️
pkg/minikube/machine/fix.go	40.93% <0.00%> (+4.82%)	⬆️
pkg/minikube/machine/delete.go	47.05% <0.00%> (+7.58%)	⬆️
pkg/minikube/machine/stop.go	32.35% <0.00%> (+10.13%)	⬆️

[medyagh]

Thank you for providing this nice tutorial !

[prasadkatti]

@medyagh - The link seems to work for me. Can you please check one more time?

[medyagh]

@prasadkatti looks good to me, thank you for adding this. look forward to see more of your contributions