Create Both Deployments

• kustomize build overlays/dev | kubectl apply -f - or in lower versions of k8s
• kustomize build overlays/dev | KUBECTL_APPLYSET=true kubectl apply -f - --prune --applyset=sample --namespace default

Remove One Deployment

Comment out the deployment you don't want to deploy in

• base/kustomization.yaml line 10 and 11

  • # - path: deploymentB-dev.yaml
    # - path: serviceB-dev.yaml
    

• overlays/dev/kustomization.yaml line 10 and 11

  • # - path: deploymentB-dev.yaml
    # - path: serviceB-dev.yaml
    

• prune the deployment you don't want to deploy

  • kustomize build overlays/dev | KUBECTL_APPLYSET=true kubectl apply -f - --prune --applyset=sample --namespace default

Demo