Add read-only support for ACK resources via annotation

[a-hilaly]

This commit adds support for making ACK resources read-only via an annotation. A new services.k8s.aws/read-only annotation can be added to a resource to instruct the ACK service controller to not create/patch/delete the underlying AWS resource.

If the annotation is set to true, the controller will:

• return an error on create if the resource doesn't exist
• only patch metadata/spec for updates but not make cloud API calls
• skip deletion of the underlying resource when the k8s resource is deleted

This allows adopting externally managed resources into ACK for read-only purposes like referencing values, without ACK attempting to manage the resource lifecycle.

Signed-off-by: Amine Hilaly [email protected]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[a-hilaly]

/test all

[a-hilaly]

/retest

[eadasiak]

/test verify-attribution

[ack-prow[bot]]

@a-hilaly: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
verify-attribution	4b439962bcec370a664933b72f865bca3dfce9da	link	false	/test verify-attribution

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[ack-prow[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: a-hilaly, michaelhtm

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