Bug 2049075: csi: cleanup csi driver resources when zero cephclusters exist

[Rakshith-R]

This commit modifies ceph-csi controller to be able to cleanup
ceph-csi deployment,daemonset,services & csidriver objects
when no cephcluster exists.

It makes the following changes:

• redundant check for tp.DriverNamePrefix is removed.
• retry to start drivers within reconcile loop is removed,
  controller will retry in case of error now.
• stopDrivers() will now return error in case of failure.
• predicate delete func will now respond to cephcluster deletion.
• CSI resources will be cleaned up when cephcluster does not exist.

Fixes: rook#9697

Signed-off-by: Rakshith R rar@redhat.com
(cherry picked from commit 1e9920f)
(cherry picked from commit 2027e7f)

Description of your changes:

Which issue is resolved by this Pull Request:
Resolves #

Checklist:

• Commit Message Formatting: Commit titles and messages follow guidelines in the developer guide.
• Skip Tests for Docs: Add the flag for skipping the build if this is only a documentation change. See here for the flag.
• Skip Unrelated Tests: Add a flag to run tests for a specific storage provider. See test options.
• Reviewed the developer guide on Submitting a Pull Request
• Documentation has been updated, if necessary.
• Unit tests have been added, if necessary.
• Integration tests have been added, if necessary.
• Pending release notes updated with breaking and/or notable changes, if necessary.
• Upgrade from previous release is tested and upgrade user guide is updated, if necessary.
• Code generation (make codegen) has been run to update object specifications, if necessary.

[openshift-ci]

@Rakshith-R: This pull request references Bugzilla bug 2049075, which is valid. The bug has been updated to refer to the pull request using the external bug tracker.

2 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug is in the state POST, which is one of the valid states (NEW, ASSIGNED, ON_DEV, POST, POST)

No GitHub users were found matching the public email listed for the QA contact in Bugzilla (ammahapa@redhat.com), skipping review request.

In response to this:

Bug 2049075: csi: cleanup csi driver resources when zero cephclusters exist

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.

[Rakshith-R]

/cc @red-hat-storage/rook-admins @agarwal-mudit @red-hat-storage/ceph-csi-admins

[leseb]

/lgtm

[leseb]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: leseb, Rakshith-R

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[openshift-ci]

@Rakshith-R: All pull requests linked via external trackers have merged:

• red-hat-storage/rook#346

Bugzilla bug 2049075 has been moved to the MODIFIED state.

In response to this:

Bug 2049075: csi: cleanup csi driver resources when zero cephclusters exist

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.