replicas | Kustomize

# replicas

Change the number of replicas for a resource.

Given this kubernetes Deployment fragment:

    # deployment.yaml
    kind: Deployment
    metadata:
      name: deployment-name
    spec:
      replicas: 3

one can change the number of replicas to 5 by adding the following to your kustomization:

    apiVersion: kustomize.config.k8s.io/v1beta1
    kind: Kustomization

    replicas:
    - name: deployment-name
      count: 5

This field accepts a list, so many resources can be modified at the same time.

As this declaration does not take in a `kind:` nor a `group:` it will match any `group` and `kind` that has a matching name and that is one of:

- `Deployment`
- `ReplicationController`
- `ReplicaSet`
- `StatefulSet`

For more complex use cases, revert to using a patch.

Last modified July 16, 2020: Docs: Auto-fix markdownlint issues (f9ee578a)