kustomize

• Different environment require slightly different field (E.g., namespace)
• Kustomize prevents recreating kubernetes manifest with small differences
• Helm also solves this problem, but it's an overkill!
• Kustomize works directly with kubectl, therefore it's natively supported

# Build manifests from a base folder
kustomize build "base/" # contains the kustomization.yaml
kustomize build "base/" | kubectl apply --filename -

# Edit kustomize.yaml
kustomize edit set image "argoproj/argocli=argoproj/argocli:v2.12.4"