[release-4.7] Bug 1960103: Pause MCP before draining/rebooting node

[pliurh]

The config daemon instance on each node need to compete for the 'Draining' lock before
it can draining/rebooting a node.

After a config daemon instance gets the lock, it checks its MachineConfigPool conditions.
If the MCP is in ready state, it will pause the MCP then process, otherwise, it wait for
the MCP getting ready. The MCP will be resumed after the config daemon and release the
lock after the config dameon finishes its work.

[openshift-ci]

@pliurh: This pull request references Bugzilla bug 1960103, which is invalid:

• expected Bugzilla bug 1960103 to depend on a bug targeting a release in 4.8.0 and in one of the following states: VERIFIED, RELEASE_PENDING, CLOSED (ERRATA), CLOSED (CURRENTRELEASE), but no dependents were found

Comment /bugzilla refresh to re-evaluate validity if changes to the Bugzilla bug are made, or edit the title of this pull request to link to a different bug.

In response to this:

[release-4.7] Bug 1960103: Pause MCP before draining/rebooting node

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.

[pliurh]

/bugzilla refresh

[openshift-ci]

@pliurh: This pull request references Bugzilla bug 1960103, which is valid. The bug has been moved to the POST state. The bug has been updated to refer to the pull request using the external bug tracker.

6 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target release (4.7.z) matches configured target release for branch (4.7.z)
• bug is in the state NEW, which is one of the valid states (NEW, ASSIGNED, ON_DEV, POST, POST)
• dependent bug Bugzilla bug 1921321 is in the state VERIFIED, which is one of the valid states (VERIFIED, RELEASE_PENDING, CLOSED (ERRATA), CLOSED (CURRENTRELEASE))
• dependent Bugzilla bug 1921321 targets the "4.8.0" release, which is one of the valid target releases: 4.8.0
• bug has dependents

Requesting review from QA contact:
/cc @zhaozhanqi

In response to this:

/bugzilla refresh

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.

[zshi-redhat]

@pliurh is this a clean merge?

[pliurh]

@pliurh is this a clean merge?

No, there were some conflicts during cherry-pick. I resolved them manual

[zshi-redhat]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: pliurh, zshi-redhat

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

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Needs approval from an approver in each of these files:

• OWNERS [pliurh,zshi-redhat]

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[openshift-ci]

@pliurh: All pull requests linked via external trackers have merged:

• openshift/sriov-network-operator#504

Bugzilla bug 1960103 has been moved to the MODIFIED state.

In response to this:

[release-4.7] Bug 1960103: Pause MCP before draining/rebooting node

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.