2024-05-23: Switch Release Tools project to query Mimir
Production Change
Change Summary
Switch the Release Tools project in ops (https://ops.gitlab.net/gitlab-org/release/tools) to query Mimir instead of Thanos.
Scheduled for 2024-05-23 09:00AM UTC
Related issue: scalability#3450 (closed)
Change Details
- Services Impacted - Release Tools (called by chatops)
- Change Technician - @marcogreg @rpereira2
- Change Reviewer - @rpereira2 @stejacks-gitlab
- Time tracking - 60 minutes
- Downtime Component - 0
Set Maintenance Mode in GitLab
If your change involves scheduled maintenance, add a step to set and unset maintenance mode per our runbooks. This will make sure SLA calculations adjust for the maintenance period.
Detailed steps for the change
Change Steps - steps to take to execute the change
Estimated Time to Complete (mins) - 30 minutes
-
Set label changein-progress /label ~change::in-progress
-
Ensure MIMIR_URL
variable in https://ops.gitlab.net/gitlab-org/release/tools is defined tohttps://mimir-internal.ops.gke.gitlab.net/prometheus
-
Merge the MR gitlab-org/release-tools!3109 (merged) -
Ensure the ops mirror is updated https://ops.gitlab.net/gitlab-org/release/tools -
Run the /chatops run auto_deploy blockers
chatops command -
Watch for error logs in the triggered auto_deploy:check_production
job in https://ops.gitlab.net/gitlab-org/release/tools/-/pipelines. (API failures are logged at theerror
level) -
Set label changecomplete /label ~change::complete
Rollback
Rollback steps - steps to be taken in the event of a need to rollback this change
Estimated Time to Complete (mins) - Estimated Time to Complete in Minutes
-
Revert the MR gitlab-org/release-tools!3109 (merged) -
Run the /chatops run auto_deploy blockers
chatops command -
Watch for error logs in the triggered auto_deploy:check_production
job in https://ops.gitlab.net/gitlab-org/release/tools/-/pipelines. (API failures are logged at theerror
level) -
Set label changeaborted /label ~change::aborted
Monitoring
Ensure the auto_deploy:check_production
job succeeds specifically the log ReleaseTools::Promotion::Checks::CanaryUp -- Checking if canary is up
isn't erroring out
Change Reviewer checklist
-
Check if the following applies: - The scheduled day and time of execution of the change is appropriate.
- The change plan is technically accurate.
- The change plan includes estimated timing values based on previous testing.
- The change plan includes a viable rollback plan.
- The specified metrics/monitoring dashboards provide sufficient visibility for the change.
-
Check if the following applies: - The complexity of the plan is appropriate for the corresponding risk of the change. (i.e. the plan contains clear details).
- The change plan includes success measures for all steps/milestones during the execution.
- The change adequately minimizes risk within the environment/service.
- The performance implications of executing the change are well-understood and documented.
- The specified metrics/monitoring dashboards provide sufficient visibility for the change.
- If not, is it possible (or necessary) to make changes to observability platforms for added visibility?
- The change has a primary and secondary SRE with knowledge of the details available during the change window.
- The change window has been agreed with Release Managers in advance of the change. If the change is planned for APAC hours, this issue has an agreed pre-change approval.
- The labels blocks deployments and/or blocks feature-flags are applied as necessary.
Change Technician checklist
-
Check if all items below are complete: - The change plan is technically accurate.
- This Change Issue is linked to the appropriate Issue and/or Epic
- Change has been tested in staging and results noted in a comment on this issue.
- A dry-run has been conducted and results noted in a comment on this issue.
- The change execution window respects the Production Change Lock periods.
- For C1 and C2 change issues, the change event is added to the GitLab Production calendar.
- For C1 and C2 change issues, the SRE on-call has been informed prior to change being rolled out. (In #production channel, mention
@sre-oncall
and this issue and await their acknowledgement.) - For C1 and C2 change issues, the SRE on-call provided approval with the eoc_approved label on the issue.
- For C1 and C2 change issues, the Infrastructure Manager provided approval with the manager_approved label on the issue.
- Release managers have been informed prior to any C1, C2, or blocks deployments change being rolled out. (In #production channel, mention
@release-managers
and this issue and await their acknowledgment.) - There are currently no active incidents that are severity1 or severity2
- If the change involves doing maintenance on a database host, an appropriate silence targeting the host(s) should be added for the duration of the change.
Edited by Gregorius Marco