Question

You deployed a new revision of a Cloud Run service, but users immediately begin reporting errors. The previous revision was working correctly and is still listed in the service's revision history. You need to restore service availability as quickly as possible using the least effort. What should you do?

Accepted Answer

Route 100% of traffic to the previous known-good revision using 'gcloud run services update-traffic --to-revisions'.

Answer

Delete the broken revision so Cloud Run automatically serves the earlier revision.

Answer

Rebuild the container image from the previous source commit and deploy it as a new revision.

Answer

Redeploy the service with '--no-traffic' and manually restart all running instances.