chore: remove unused redis service from docker-compose

docker-compose.yml

@@ -12,12 +12,8 @@ services:
       - PORT=3001
       - ADMIN_SECRET_KEY=${ADMIN_SECRET_KEY}
       - PROJECT_REGISTRY_CONTRACT_ID=${PROJECT_REGISTRY_CONTRACT_ID}
-      - REDIS_URL=redis://redis:6379
       # Keep the V8 heap ceiling under the container memory limit below (#225).
       - NODE_OPTIONS=--max-old-space-size=384
-    depends_on:
-      redis:
-        condition: service_healthy
     volumes:
       - ./src:/app/src:ro
     restart: unless-stopped
@@ -37,28 +33,3 @@ services:
       timeout: 5s
       retries: 3
       start_period: 10s
-
-  redis:
-    image: redis:7-alpine
-    ports:
-      - "6379:6379"
-    volumes:
-      - redis_data:/data
-    restart: unless-stopped
-    command: ["redis-server", "--maxmemory", "192mb", "--maxmemory-policy", "allkeys-lru"]
-    deploy:
-      resources:
-        limits:
-          cpus: "0.25"
-          memory: 256M
-        reservations:
-          cpus: "0.1"
-          memory: 64M
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 10s
-      timeout: 3s
-      retries: 3
-
-volumes:
-  redis_data:

src/__tests__/container-resources.test.ts

@@ -110,23 +110,6 @@ describe("container resource limits (#225)", () => {
     });
   });
 
-  describe("redis service", () => {
-    it("declares memory and CPU limits", () => {
-      const limits = limitsFor("redis");
-      expect(toBytes(limits.memory!)).toBeGreaterThan(0);
-      expect(Number(limits.cpus)).toBeGreaterThan(0);
-    });
-
-    it("caps its own memory below the container limit and evicts", () => {
-      const command = (compose.services.redis.command ?? []).join(" ");
-      expect(command).toMatch(/--maxmemory\s+\d+mb/);
-      expect(command).toMatch(/allkeys-lru/);
-
-      const maxMemoryMb = Number(/--maxmemory (\d+)mb/.exec(command)![1]);
-      expect(maxMemoryMb * MB).toBeLessThan(toBytes(limitsFor("redis").memory!));
-    });
-  });
-
   describe("documentation", () => {
     const docPath = path.join(ROOT, "docs", "DEPLOYMENT.md");