Set image tag

Update image tag in kustomization.yaml

kustomize edit set image myapp=myapp:v1.2.3

More kustomize commands

Add configMapGenerator

kustomize edit add configmap my-config --from-literal=key=value

Add a ConfigMap generator entry to kustomization.yaml
List resources in overlay

kustomize build ./overlays/prod | grep "^kind:"

Quickly list all resource kinds in a kustomize build
Apply strategic merge patch

# Add patchesStrategicMerge in kustomization.yaml

Use patchesStrategicMerge to partially override base resources
Apply strategic merge patch

cat > patch.yaml <<EOF apiVersion: apps/v1 kind: Deployment metadata: name: myapp spec: replicas: 3 template: spec: containers: - name: myapp resources: limits: memory: 512Mi EOF echo 'patches:\n- path: patch.yaml' >> kustomization.yaml

Create a strategic merge patch and register it in kustomization.yaml
Inflate Helm charts in kustomize build

kustomize build --enable-helm ./overlay

Render helmCharts: block to manifests; note: needs helm in PATH