configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-deployment-config
  namespace: my-namespace
data:
  app-config.json: |
    {
      "database": {
        "host": "my-database-service",
        "port": 5432,
        "user": "my-user",
        "password": "my-password"
      },
      "app": {
        "logLevel": "info",
        "port": 8080
      }
    }