replicas
Change the number of replicas for a resource.
Given this kubernetes Deployment fragment:
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.
Example
Input File
# deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: the-deployment
spec:
replicas: 5
template:
containers:
- name: the-container
image: registry/conatiner:latest
# kustomization.yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
replicas:
- name: deployment-name
count: 10
resources:
- deployment.yaml
Output
# deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: the-deployment
spec:
replicas: 10
template:
containers:
- name: the-container
image: registry/conatiner:latest
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