Add disk_format kuttl tests

[maximsava12]

This patch introduces kuttl tests to check the resources that are supposed to be generated when the disk_format is defined.

[openshift-ci]

Hi @maximsava12. Thanks for your PR.

I'm waiting for a openstack-k8s-operators 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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[fmount]

This should be rebased at least on top of #520, so we'll test it once the dependencies are in place.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: maximsava12
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[fmount]

Made another pass and I think we're going to the right path. It will be something we can test and merge after a few minor changes

[fmount]

remove this line (L5), and instead change config/samples/disk_format/disk_format.yaml to be like the following:

# Inject inject_metadata config
apiVersion: glance.openstack.org/v1beta1
kind: Glance
metadata:
  name: glance
spec:
  serviceUser: glance
  databaseInstance: openstack
  databaseAccount: glance
  keystoneEndpoint: default
  customServiceConfig: |
    [image_format]
    disk_formats=raw,iso
  glanceAPIs:
    default:
      type: single
      replicas: 1

This way you can directly deploy what you need with a single command.
Also, given this layout covers a kuttl test, can we move disk_format under layout folder?

[fmount]

L5 here can be changed to be:

oc kustomize ../../../../config/samples/layout/disk_format | oc delete -n $NAMESPACE -f -

after you move everything under layout directory.

[fmount]

Looking at the script I think you don't need "DOMAIN=glance-default-single.$NAMESPACE.svc.
Remove it from L5 and L7.

[fmount]

/ok-to-test

[openshift-ci]

@maximsava12: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/precommit-check	119dc0f	link	true	/test precommit-check
ci/prow/glance-operator-build-deploy-kuttl	119dc0f	link	true	/test glance-operator-build-deploy-kuttl

Full PR test history. Your PR dashboard.

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