Add traefik v2 swarm examples

examples/traefik-v2/swarm/docker-compose-auth-host.yml

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+version: '3'
+
+services:
+  traefik:
+    image: traefik:v2.2
+    command: --providers.docker
+    ports:
+      - "8085:80"
+      - "8086:8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+  whoami:
+    image: emilevauge/whoami
+    labels:
+      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost.com`)"
+      - "traefik.http.routers.whoami.middlewares=traefik-forward-auth"
+
+  traefik-forward-auth:
+    image: thomseddon/traefik-forward-auth:2
+    environment:
+      - PROVIDERS_GOOGLE_CLIENT_ID=your-client-id
+      - PROVIDERS_GOOGLE_CLIENT_SECRET=your-client-secret
+      - SECRET=something-random
+      # INSECURE_COOKIE is required if not using a https entrypoint
+      - INSECURE_COOKIE=true
+      - COOKIE_DOMAIN=localhost.com
+      - AUTH_HOST=auth.localhost.com:8085
+      - LOG_LEVEL=debug
+    labels:
+      - "traefik.http.routers.traefik-forward-auth.rule=Host(`auth.localhost.com`)"
+      - "traefik.http.routers.traefik-forward-auth.middlewares=traefik-forward-auth"
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.address=http://traefik-forward-auth:4181"
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.authResponseHeaders=X-Forwarded-User"
+      - "traefik.http.services.traefik-forward-auth.loadbalancer.server.port=4181"

examples/traefik-v2/swarm/docker-compose-oidc.yml

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+version: '3'
+
+services:
+  traefik:
+    image: traefik:v2.2
+    command: --providers.docker
+    ports:
+      - "8085:80"
+      - "8086:8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+  whoami:
+    image: emilevauge/whoami
+    labels:
+      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost.com`)"
+      - "traefik.http.routers.whoami.middlewares=traefik-forward-auth"
+
+  traefik-forward-auth:
+    image: thomseddon/traefik-forward-auth:2
+    environment:
+      - DEFAULT_PROVIDER=oidc
+      - PROVIDERS_OIDC_ISSUER_URL=https://login.microsoftonline.com/{tenant}
+      - PROVIDERS_OIDC_CLIENT_ID=your-client-id
+      - PROVIDERS_OIDC_CLIENT_SECRET=your-client-secret
+      - SECRET=something-random
+      # INSECURE_COOKIE is required if not using a https entrypoint
+      - INSECURE_COOKIE=true
+      - LOG_LEVEL=debug
+    labels:
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.address=http://traefik-forward-auth:4181"
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.authResponseHeaders=X-Forwarded-User"
+      - "traefik.http.services.traefik-forward-auth.loadbalancer.server.port=4181"
+

examples/traefik-v2/swarm/docker-compose.yml

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+version: '3'
+
+services:
+  traefik:
+    image: traefik:v2.2
+    command: --providers.docker
+    ports:
+      - "8085:80"
+      - "8086:8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+  whoami:
+    image: emilevauge/whoami
+    labels:
+      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost.com`)"
+      - "traefik.http.routers.whoami.middlewares=traefik-forward-auth"
+
+  traefik-forward-auth:
+    image: thomseddon/traefik-forward-auth:2
+    environment:
+      - PROVIDERS_GOOGLE_CLIENT_ID=your-client-id
+      - PROVIDERS_GOOGLE_CLIENT_SECRET=your-client-secret
+      - SECRET=something-random
+      # INSECURE_COOKIE is required if not using a https entrypoint
+      - INSECURE_COOKIE=true
+      - LOG_LEVEL=debug
+    labels:
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.address=http://traefik-forward-auth:4181"
+      - "traefik.http.middlewares.traefik-forward-auth.forwardauth.authResponseHeaders=X-Forwarded-User"
+      - "traefik.http.services.traefik-forward-auth.loadbalancer.server.port=4181"