chore: extend example configs for idEnv and public (#4443)

Add a few more examples in the configs for staticClient configuration
using idEnv and public flags.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>

config.yaml.dist

@@ -119,6 +119,21 @@ web:
 #       - 'http://127.0.0.1:5555/callback'
 #     name: 'Example App'
 #     secret: ZXhhbXBsZS1hcHAtc2VjcmV0
+#
+#   # Example using environment variables
+#   # These fields are mutually exclusive with id and secret respectively.
+#   - idEnv: DEX_CLIENT_ID
+#     secretEnv: DEX_CLIENT_SECRET
+#     redirectURIs:
+#       - 'https://app.example.com/callback'
+#     name: 'Production App'
+#
+#   # Example of a public client (no secret required)
+#   - id: example-device-client
+#     redirectURIs:
+#       - /device/callback
+#     name: 'Static Client for Device Flow'
+#     public: true
 
 # Connectors are used to authenticate users against upstream identity providers.
 #

examples/config-dev.yaml

@@ -131,6 +131,15 @@ staticClients:
   - 'http://127.0.0.1:5555/callback'
   name: 'Example App'
   secret: ZXhhbXBsZS1hcHAtc2VjcmV0
+
+# Example using environment variables
+# Set DEX_CLIENT_ID and DEX_SECURE_CLIENT_SECRET before starting Dex
+# - idEnv: DEX_CLIENT_ID
+#   secretEnv: DEX_CLIENT_SECRET
+#   redirectURIs:
+#   - 'http://127.0.0.1:5556/callback'
+#   name: 'Secure Example App'
+
 #  - id: example-device-client
 #    redirectURIs:
 #      - /device/callback