All posts tagged with kubernetes

Kubernetes is a container orchestration system that originated at Google, and is now being maintained by the Cloud Native Computing Foundation. In this post, I am going to dissect some Kubernetes internals—especially, Deployments and how gradual rollouts of new containers are handled.

What Is a Deployment?

This is how the Kubernetes documentation describes Deployments:

A Deployment controller provides declarative updates for Pods and ReplicaSets.

A Pod is a group of one or more containers which can be started inside a cluster. A pod started manually is not going to be very useful though, as it won't automatically be restarted if it crashes. A ReplicaSet ensures that a Pod...

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