fix docker

Author: FZambia

docker-compose.yml

@@ -3,10 +3,10 @@ services:
     image: centrifugo/centrifugo:v6.8.0
     command:
       - centrifugo
-      - --config=/centrifugo_test.json
+      - --config=/centrifugo/config.json
     ports:
       - "8000:8000"
     volumes:
-      - ./centrifugo_test.json:/centrifugo_test.json:ro
+      - ./centrifugo_test.json:/centrifugo/config.json:ro
     extra_hosts:
       - "host.docker.internal:host-gateway"

src/shared_poll.protobuf.test.ts

@@ -59,7 +59,7 @@ function startMockBackend(): Promise<void> {
       });
     });
     mockServer.on('error', reject);
-    mockServer.listen(mockBackendPort, '127.0.0.1', () => resolve());
+    mockServer.listen(mockBackendPort, () => resolve());
   });
 }
 

src/shared_poll.test.ts

@@ -68,7 +68,10 @@ function startMockBackend(): Promise<void> {
         }
       });
     });
-    mockServer.listen(mockBackendPort, '127.0.0.1', () => resolve());
+    // Bind to all interfaces so Centrifugo running inside Docker can reach
+    // this mock backend via host.docker.internal (which routes through the
+    // docker0 bridge on Linux, not loopback).
+    mockServer.listen(mockBackendPort, () => resolve());
   });
 }