add docker-compose for local testing

examples/config-dev.yaml

@@ -12,6 +12,36 @@ storage:
   config:
     file: examples/dex.db
 
+  # type: mysql
+  # config:
+  #   host: localhost
+  #   port: 3306
+  #   database: dex
+  #   user: mysql
+  #   password: mysql
+  #   ssl:
+  #     mode: "false"
+
+  # type: postgres
+  # config:
+  #   host: localhost
+  #   port: 5432
+  #   database: dex
+  #   user: postgres
+  #   password: postgres
+  #   ssl:
+  #     mode: disable
+
+  # type: etcd
+  # config:
+  #   endpoints:
+  #     - http://localhost:2379
+  #   namespace: dex/
+
+  # type: kubernetes
+  # config:
+  #   kubeConfigFile: $HOME/.kube/config
+
 # Configuration for the HTTP endpoints.
 web:
   http: 0.0.0.0:5556