The slow rollout of a new version of an existing application.
The purpose of a canary deployment is to reduce the risk of deploying a new version that impacts the workload. The method will incrementally deploy the new version, making it visible to new users in a slow fashion. As you gain confidence in the deployment, you will deploy it to replace the current version in its entirety.
Implement Canary Deployment
- Use a router or load balancer that allows you to send a small percentage of users to the new version.
- Use a dimension on your KPIs to indicate which version is reporting the metrics.
- Use the metric to measure the success of the deployment; this indicates whether the deployment should continue or roll back.
- Increase the load on the new version until either all users are on the new version or you have fully rolled back.