feat: setup project structure and dependencies - init Go module, add redis/sqlx deps, docker-compose config, basic project scaffold

docker-compose.yml

@@ -0,0 +1,36 @@
+version: "3.8"
+
+services:
+  api:
+    build: .
+    ports:
+      - "8080:8080"
+    environment:
+      - REDIS_ADDR=redis:6379
+      - POSTGRES_DATABASE=trip_planner
+      - POSTGRES_USER=trip_planner
+      - POSTGRES_PASSWORD=trip_planner
+      - POSTGRES_HOST=postgres
+    depends_on:
+      - redis
+      - postgres
+    command: ["/api"]
+
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+
+  postgres:
+    image: postgres:15-alpine
+    environment:
+      - POSTGRES_DB=trip_planner
+      - POSTGRES_USER=trip_planner
+      - POSTGRES_PASSWORD=trip_planner
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data: