What you will learn
- Use Argo Rollouts
- Drive rollouts by metrics
- Automate rollback
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The basics, in plain English
Progressive delivery means rolling out a new version slowly and carefully instead of switching everyone at once. You send the new version to a small group first, watch for problems, and only continue if all looks well. This limits the damage if the new version is bad.
- Progressive delivery
- Releasing a change gradually to small groups before everyone gets it.
- Canary
- Sending the new version to a tiny slice of users first as a test.
- Blue-green
- Running old and new versions side by side, then switching traffic over.
- Rollback
- Quickly going back to the old version if the new one misbehaves.
- Metrics gate
- A check that pauses the rollout if error rates climb.
- Blast radius
- How many users a bad release can hurt, which gradual rollout keeps small.
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Metric-driven
Argo Rollouts and Flagger shift traffic gradually and analyze metrics, automatically rolling back if error rates climb.
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