CI/D Readiness Review Addendum Runbook Responses

In preparation for taking over the day to day of CI/CD issues, the runbooks should cover alerts that frequently have occurred.

• CPU use percent is extremely high on shared-runners-manager-4.gitlab.com for the past 2 hours.
• No disk space left on /opt/prometheus/prometheus/data on prometheus-01.nyc1.do.gitlab-runners.gitlab.net: 641.8m%
• No disk space left on /opt/gitlab on runners-cache-5.gitlab.com: 997.3m%
• Runners manager is down on shared-runners-manager-4.gitlab.com:9402
• CICDTooManyPendingJobsPerNamespace
• CICDTooManyRunningJobsPerNamespaceOnSharedRunnersGitLabOrg
• CICDNamespaceWithConstantNumberOfLongRunningRepeatedJobs
• CICDJobQueueDurationUnderperformant
• CICDTooManyPendingBuildsOnSharedRunnerProject
• CICDTooManyArchivingTraceFailures