Replacement of kustomize edit set image that can be used with older kubect/kustomize versions.

In the directory that has kustomization.yaml:

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
  - deployments/my-project.yaml
images:
  - name: my-group/my-project
    newTag: 1.0.0

After running npx kustomize edit set image my-group/my-project:1.0.0 in the directory:

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
  - deployments/my-project.yaml
images:
  - name: my-group/my-project
    newTag: 1.1.0

The easiest way to use the command is using npx.

npx kustomize-edit-set-image [--context=context] <image>

Set image nginx version to 1.9.2 in current kustomization directory.

npx kustomize-edit-set-image nginx:1.9.2

Set image nginx version to 1.9.2 in kustomization directory ./staging.

npx kustomize-edit-set-image --context=./staging nginx:1.9.2

Due to this issue, You can't use kustomize edit set image if your kustomization.yaml is make use of bases feature, unless you can using kubectl 1.21.

However, if you can't use kubectl 1.21 due to version skew policy, we can't get this fix. So we do this to done this job instead.