Add sample upstream provider

sample_upstream_provider/dex-provider/dex.config.yaml

@@ -0,0 +1,26 @@
+issuer: http://127.0.0.1:9001/dex
+
+storage:
+  type: memory
+
+web:
+  http: 0.0.0.0:9001
+
+oauth2:
+  # Automate some clicking
+  # Note: this might actually make some tests pass that otherwise wouldn't.
+  skipApprovalScreen: false
+
+connectors:
+  # Note: this might actually make some tests pass that otherwise wouldn't.
+  - type: mockCallback
+    id: mock
+    name: Example
+
+# Basic OP test suite requires two clients.
+staticClients:
+  - id: foo
+    secret: bar
+    redirectURIs:
+      - http://localhost:8000/prov_cb
+    name: Auth