CRD's and The Operator Pattern

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CRD's and The Operator Pattern
You can add 3rd-party Resources and Controllers
This extends Kubernetes API and CLI
A pattern is starting to emerge of using these together
Operator: automate deployment and management of complex apps, e.g. Databases, monitoring tools, backups, and custom ingresses
Higher Deployment Abstractions
All out kubectl commands just talk to the Kubernetes API
Kubernetes has limited built-in templating, versioning, tracking and management of your apps
There are now many tools to do that, but many are defunct
Helm is the most popular
'Compose on Kubernetes' comes with Docker Desktop
These are optional, and your distro may have a preference
Most distros support Helm
Many of the deployment tools have templating options
You'll need a solution as a number of environments / apps grow
Helm was the first 'winner' in this space, but can be complex
Official 'Kustomize' (https://github.com/kubernetes-sigs/kustomize) feature works out-of-the-box
docker app and Compose-on-Kubernetes are Docker's way

Ingress Controller

Kubernetes Dashboard

Last modified 2yr ago

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Outline

CRD's and The Operator Pattern

Higher Deployment Abstractions