add AWSClusterTemplate type

[ykakarap]

What type of PR is this?
/kind feature
/kind api-change

What this PR does / why we need it:
This PR adds AWSClusterTemplate type. This type is need by the ClusterClass proposal.
In the near future this type would only be used by ClusterClass.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #2575

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• adds unit tests
• adds or updates e2e tests

Release note:

Add AWSClusterTemplate type, to be used in managed cluster topologies (ClusterClass)

[shivi28]

Thanks @ykakarap for the PR ,
Run make generate some tests are failing. It is always advisable to run it before raising any PR.

[ykakarap]

@shivi28 I did run make generate before submitting the PR.
Similarly make verify runs successfully on my local. The same issue is surfacing on PRs for other providers too.

The issue seems to be that the generated files on the pipeline are adding a extra //go:build !ignore_autogenerated at the top of the zz_generate.deepcopy.go files.
This happened on rerunning the same pipeline on the same code that previously passed the verification pipeline. With this information I suspect that something about the pipelines changed and it might not be an issue with the code.

I dont know what is causing this, needs more investigation.

[shivi28]

Ya even I tried make generate on this PR and nothing changed.
This looks like a CI issue only. Another thread going on for this discussion kubernetes-sigs/cluster-api#4903 (comment)

[ykakarap]

This looks like a CI issue only.

Yes

[randomvariable]

See kubernetes-sigs/cluster-api#4953

[ykakarap]

/retest

[ykakarap]

/assign @randomvariable

[randomvariable]

/lgtm
/approve

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/priority important-soon