Portal:Cloud VPS/Admin/Runbooks/PuppetStaleCertificates

From Wikitech


The procedures in this runbook require project admin permissions to complete.

Error / Incident

There's some stale certificates on the puppetmaster after the removal of some VMs.

Common issues

This usually happens after manually removing a VM in a project that has it's own puppetmaster.

If this is the case, you can check the fqdns that were removed in the following graph (search for relevant project in the stale certificates graph): https://grafana-rw.wmcloud.org/d/SQM7MJZSz

then with the list of failed fnqdns, follow the guideline here: https://wikitech.wikimedia.org/wiki/Puppet#node_cleanup

To avoid, you can use the dedicated cookbook to remove the instances:

dcaro@vulcanus$ cookbook wmcs.vps.remove_instance --help
usage: cookbooks.wmcs.vps.remove_instance [-h] [--project PROJECT] [--task-id TASK_ID] [--no-dologmsg] [--revoke-puppet-certs] --server-name SERVER_NAME

WMCS Toolforge - Remove an instance from a project.

Usage example:
    cookbook wmcs.vps.remove_instance \
        --project toolsbeta \
        --server-name toolsbeta-k8s-test-etcd-08

  -h, --help            show this help message and exit
  --project PROJECT     Relevant Cloud VPS openstack project (for operations, dologmsg, etc). If this cookbook is for hardware, this only affects dologmsg calls. Default
                        is 'admin'.
  --task-id TASK_ID     Id of the task related to this operation (ex. T123456). (default: None)
  --no-dologmsg         To disable dologmsg calls (no SAL messages on IRC). (default: False)
                        If set, the Puppet certificates of this server will be revoked on a custom Puppetmaster (default: False)
  --server-name SERVER_NAME
                        Name of the server to remove (without domain, ex. toolsbeta-test-k8s-etcd-9). (default: None)

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