Add sample upstream provider

sample_upstream_provider/docker-compose.yaml

@@ -0,0 +1,46 @@
+services:
+  upstream:
+    image: dexidp/dex
+    user: "1000"
+    network_mode: host
+    volumes:
+      - ./dex-provider:/conf:ro
+    command: [ "dex", "serve", "/conf/dex.config.yaml" ]
+
+  client1:
+    image: pierre42100/oidc_test_client
+    user: "1000"
+    network_mode: host
+    environment:
+      - LISTEN_ADDR=0.0.0.0:8011
+      - PUBLIC_URL=http://127.0.0.1:8011
+      - CONFIGURATION_URL=http://localhost:8000/.well-known/openid-configuration
+      - CLIENT_ID=testclient1
+      - CLIENT_SECRET=secretone
+
+  client2:
+    image: pierre42100/oidc_test_client
+    user: "1000"
+    network_mode: host
+    environment:
+      - LISTEN_ADDR=0.0.0.0:8012
+      - PUBLIC_URL=http://127.0.0.1:8012
+      - CONFIGURATION_URL=http://localhost:8000/.well-known/openid-configuration
+      - CLIENT_ID=testclient2
+      - CLIENT_SECRET=secrettwo
+
+  basicoidc:
+    image: rust
+    user: "1000"
+    network_mode: host
+    environment:
+      - STORAGE_PATH=/storage
+      #- RUST_LOG=debug
+    volumes:
+      - ../:/app
+      - ./storage:/storage
+      - ~/.cargo/registry:/usr/local/cargo/registry
+    command:
+      - bash
+      - -c
+      - cd /app && cargo run