Allow using an externally created secret instead of using the one the Helm chart creates

[mtougeron]

What type of PR is this?

/kind feature

What this PR does / why we need it:

This allows you to define a Secret that was created outside the Helm chart for the Azure (or AWS) cluster-autoscaler configuration so that the secret can be securely added to Kubernetes. A common method of this would be the external-secrets-operator or vault-secrets-operator.

Which issue(s) this PR fixes:

Fixes # n/a

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Allow using an externally created secret instead of using the one the Helm chart creates

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[mtougeron]

/label helm-charts

[k8s-ci-robot]

@mtougeron: The label(s) /label helm-charts cannot be applied. These labels are supported: api-review, tide/merge-method-merge, tide/merge-method-rebase, tide/merge-method-squash, team/katacoda, refactor. Is this label configured under labels -> additional_labels or labels -> restricted_labels in plugin.yaml?

In response to this:

/label helm-charts

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[rdtiu]

/lgtm

[k8s-ci-robot]

@rdtiu: changing LGTM is restricted to collaborators

In response to this:

/lgtm

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[mwielgus]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mtougeron, mwielgus, rdtiu

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• charts/OWNERS [mwielgus]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[mtougeron]

Thanks @mwielgus !