Install snapshot controller independently of helm for e2e tests

[wongma7]

Is this a bug fix or adding new feature?

What is this PR about? / Why do we need it?
In preparation for removing snapshot controller installation from our helm chart #965, try using other methods to install it as a prerequisite.

• kops e2e tests:
  • upgrade kops to 1.21.0 and add snapshotController.enabled: true to hack/kops-patch.yaml (the resources are embedded in kops, copied from external-snapshotter repo) same as below
• eks e2e tests:
  • kubectl apply the resources from external-snapshotter github repo.

What testing is done?

[k8s-ci-robot]

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[wongma7]

error: error creating cluster: [spec.snapshotController.enabled: Forbidden: Snapshot controller requires that cert manager is enabled, spec.snapshotController.enabled: Forbidden: Snapshot controller requires external CSI Driver]

hmm, this is disappointing

[wongma7]

So as a kops user, if I want it to install snapshot controller, i must also have it install the driver for me. i.e.

kops snapshot controller + helm ebs csi driver = invalid
kops snapshot controller + kops ebs csi driver = valid
kubectl apply snapshot controller + helm ebs csi driver = valid (our tests will do this then for both kops and eks )

[wongma7]

error listing SQS queues: AccessDenied: Access to the resource https://sqs.us-west-2.amazonaws.com/ is denied.
status code: 403, request id: 4d2f6ebe-7072-539f-8e6d-37de6fea95d3

what the heck?

/retest

[wongma7]

/test pull-aws-ebs-csi-driver-e2e-single-az

should have sqs permissions now. kubernetes/kops#11299

[wongma7]

/retest

[nckturner]

It's ok to be hardcoding the snapshot-controller version here? Do we at least want to extract it into a variable to make it easier to change?

[wongma7]

fixed, made it variable

[nckturner]

/lgtm