What are the three kinds of object management supported in Kubernetes?
Experience Level: Junior
Tags: Kubernetes
Answer
- Imperative commands
- Imperative object configuration
- Declarative object configuration
Very often you generate a manifest using an imperative command together with --dry-run=client parameter and then further tweak it using an editor. Once finished, you apply the changes.
Example:
Run the following to generate a pod manifest.
kubectl run mypod --image=nginx --dry-run=client -o yaml > file.yamlRun the following to open the pod manifest in an editor:
nano file.yamlApply the changes by running the following command:
kubectl apply -f file.yamlThe above technique will also allow you to get back to the manifest if needed. You can always delete the resoruce (pod), modify the manifest and recreate it again using the modified version.
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