Kustomize - file

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

namespace: mainapp
nameSuffix: -web
commonLabels:
  environment: web
  customer: main

bases:
- ../../../../base

configMapGenerator:
- name: config-dev
  options:
    disableNameSuffixHash: true
  envs:
  - config/dev.env

patches:
- path: patch/patch.yml
  target:
    kind: Deployment
    labelSelector: "app=main"