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Deployment Guides: Push-to-Deploy and Rollbacks
Guides on getting code live safely: how push-to-deploy works step by step, how to turn on auto-deploy, and what the deploy status of a release really means.
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Deploys FAQ
- What happens when I push to GitHub?
- With auto-deploy on, a push to your branch builds a new release. When it is ready, traffic moves to it and the old release stops.
- Is there downtime during a deploy?
- With a health check set, the new release must answer before traffic moves to it, and the old one keeps serving until then.
- Can I undo a bad deploy?
- Yes. Once a service has an earlier deploy, you can roll back to the previous version from the deploy history.