kustomize

Using kustomization.yaml

Print a set of API resources generated from instructions in a kustomization.yaml file.

The argument must be the path to the directory containing the file, or a git repository URL with a path suffix specifying same with respect to the repository root.

Command

$ kubectl kustomize <dir>

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
nameSuffix: -dev
resources:
- deployment.yaml

Command

// deployment.yaml and kustomization.yaml are in the same directory
$ kubectl kustomize

Output

apiVersion: apps/v1
kind: Deployment
metadata:
  name: the-deployment-dev
spec:
  replicas: 5
  template:
    containers:
    - image: registry/conatiner:latest
      name: the-container