Understanding Kubernetes Deployment Strategies

Understanding Kubernetes Deployment Strategies

Deployment resources within Kubernetes have simplified container deployments, and they are one of the most used Kubernetes resources. Deployments manage ReplicaSets, and they help create multiple deployment strategies by appropriately manipulating them to produce the desired effect. In this tutorial, we'll Understanding Kubernetes Deployment Strategies. Rolling updates, recreates, ramped rollouts, canary deployments, and more

Deployment resources within  Kubernetes have simplified container deployments, and they are one of the most used Kubernetes resources. Deployments manage ReplicaSets, and they help create multiple deployment strategies by appropriately manipulating them to produce the desired effect.

Surprisingly, deployments only have two Strategy types: RollingUpdate and Recreate.

While RollingUpdate is the default strategy where Kubernetes creates a new ReplicaSet and starts scaling the new ReplicaSet up and simultaneously scaling the old ReplicaSet down, the Recreate strategy scales the old ReplicaSet to zero and creates a new one with the desired replicas immediately.

That does not limit Kubernetes’ ability, though, for more advanced deployments. There are more fine-grain controls on the deployment specification that can help us implement multiple deployment patterns and strategies. Let’s look at possible scenarios, when to use them, and how they look with hands-on examples.

containers devops kubernetes

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