Progressive Delivery is an advanced deployment method that allows for zero-downtime application releases. Argo Rollouts is a Kubernetes controller that allows you to adopt progressive delivery in the form of blue/green and canary deployments.

We see a lot of teams that choose an arbitrary number of clients that access the new version of a canary. Yes, it is very easy to send only 10% of the traffic to the new version of a Kubernetes deployment. But sometimes you want to choose WHICH 10% sees the new traffic.

In this talk we will see several approaches on pinning down specific clients to the old or new version and advanced scenarios for sending canary traffic only to a specific subset of users such as internal employees or customers who have expressed their interest on seeing brand new releases as soon as possible.