test(multiplayer): cover compose allocator binding

compose.allocated-smoke.yml

@@ -36,6 +36,28 @@ services:
       database:
         condition: service_healthy
 
+  agones-provider:
+    image: python:3.12-alpine
+    command: ["python3", "/opt/fake_agones_provider.py"]
+    volumes:
+      - ./scripts/fake_agones_provider.py:/opt/fake_agones_provider.py:ro
+
+  allocator:
+    build:
+      context: .
+      target: allocator
+    environment:
+      COSMIC_CLASH_POSTGRES_DSN: postgres://cosmic_clash_test:cosmic_clash_test@database:5432/cosmic_clash_test?sslmode=disable
+      COSMIC_CLASH_AGONES_URL: http://agones-provider:8080
+      COSMIC_CLASH_AGONES_NAMESPACE: cosmic-clash
+      COSMIC_CLASH_WORKLOAD_SECRET: compose-workload-secret
+    command: ["--dsn=postgres://cosmic_clash_test:cosmic_clash_test@database:5432/cosmic_clash_test?sslmode=disable", "--migrations=/opt/cosmic-clash/migrations", "--interval=1s", "--transport=enet"]
+    depends_on:
+      database:
+        condition: service_healthy
+      agones-provider:
+        condition: service_started
+
   game-server:
     build:
       context: .