feat: 添加统一启动脚本，支持通过环境变量配置workers数量

- 新增 start.sh 启动脚本，根据 WORKERS/RELOAD 环境变量自动配置
- 修改 Dockerfile 使用启动脚本，默认 WORKERS=4
- 更新 docker-compose.prod-multi.yml，所有租户使用环境变量配置
- 生产环境默认4个workers，提升并发处理能力

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/Dockerfile

@@ -43,9 +43,18 @@ RUN pip install --upgrade pip && \
 # 复制应用代码
 COPY app/ ./app/
 
+# 复制启动脚本
+COPY start.sh ./start.sh
+RUN chmod +x ./start.sh
+
 # 创建上传目录和日志目录
 RUN mkdir -p uploads logs
 
+# 默认环境变量（可通过docker-compose或环境变量覆盖）
+ENV WORKERS=4 \
+    RELOAD=false \
+    TIMEOUT_KEEP_ALIVE=600
+
 # 暴露端口
 EXPOSE 8000
 
@@ -53,5 +62,5 @@ EXPOSE 8000
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
     CMD curl -f http://localhost:8000/health || exit 1
 
-# 启动命令（生产模式，无热重载）
+# 使用启动脚本
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4", "--timeout-keep-alive", "600"]
+CMD ["./start.sh"]

backend/start.sh

@@ -1,64 +1,38 @@
 #!/bin/bash
+# 统一启动脚本 - 根据环境变量自动配置
 
-# 颜色定义
+# 默认配置
-RED='\033[0;31m'
+HOST=${HOST:-0.0.0.0}
-GREEN='\033[0;32m'
+PORT=${PORT:-8000}
-YELLOW='\033[1;33m'
+WORKERS=${WORKERS:-1}
-NC='\033[0m' # No Color
+RELOAD=${RELOAD:-false}
+TIMEOUT_KEEP_ALIVE=${TIMEOUT_KEEP_ALIVE:-600}
 
-echo -e "${GREEN}考培练系统后端启动脚本${NC}"
+echo "=============================================="
-echo "================================"
+echo "  KaoPeiLian Backend Starting..."
+echo "=============================================="
+echo "  HOST: $HOST"
+echo "  PORT: $PORT"
+echo "  WORKERS: $WORKERS"
+echo "  RELOAD: $RELOAD"
+echo "  TIMEOUT_KEEP_ALIVE: $TIMEOUT_KEEP_ALIVE"
+echo "=============================================="
 
-# 检查Python版本
+# 构建启动命令
-echo -e "${YELLOW}检查Python版本...${NC}"
+CMD="uvicorn app.main:app --host $HOST --port $PORT --timeout-keep-alive $TIMEOUT_KEEP_ALIVE"
-python_version=$(python3 --version 2>&1)
+
-if [[ $? -eq 0 ]]; then
+if [ "$RELOAD" = "true" ]; then
-    echo -e "${GREEN}✓ $python_version${NC}"
+    # 开发模式：启用热重载（不支持多workers）
+    CMD="$CMD --reload --reload-dir /app/app"
+    echo "Mode: Development (hot reload enabled)"
 else
-    echo -e "${RED}✗ Python3未安装${NC}"
+    # 生产模式：多workers
-    exit 1
+    CMD="$CMD --workers $WORKERS"
+    echo "Mode: Production ($WORKERS workers)"
 fi
 
-# 检查虚拟环境
+echo ""
-if [ ! -d "venv" ]; then
+echo "Executing: $CMD"
-    echo -e "${YELLOW}创建虚拟环境...${NC}"
+echo ""
-    python3 -m venv venv
-fi
 
-# 激活虚拟环境
+exec $CMD
-echo -e "${YELLOW}激活虚拟环境...${NC}"
-source venv/bin/activate
-
-# 安装依赖
-echo -e "${YELLOW}安装依赖...${NC}"
-pip install -q -r requirements/base.txt
-
-# 检查.env文件
-if [ ! -f ".env" ]; then
-    echo -e "${YELLOW}创建.env文件...${NC}"
-    cp .env.example .env
-    echo -e "${GREEN}✓ 已创建.env文件，请根据需要修改配置${NC}"
-fi
-
-# 检查数据库连接
-echo -e "${YELLOW}检查数据库连接...${NC}"
-python -c "
-import os
-from dotenv import load_dotenv
-load_dotenv()
-db_url = os.getenv('DATABASE_URL', '')
-if 'mysql' in db_url:
-    print('✓ 数据库配置已设置')
-else:
-    print('⚠ 请检查数据库配置')
-" 2>/dev/null
-
-# 启动服务
-echo -e "${GREEN}启动开发服务器...${NC}"
-echo "================================"
-echo -e "API文档: ${GREEN}http://localhost:8000/api/docs${NC}"
-echo -e "健康检查: ${GREEN}http://localhost:8000/health${NC}"
-echo "================================"
-
-# 启动uvicorn
-uvicorn app.main:app --reload --host 0.0.0.0 --port 8000

deploy/docker/docker-compose.prod-multi.yml

@@ -78,16 +78,17 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4        # 生产环境4个workers
+      - RELOAD=false     # 生产环境关闭热重载
     ports:
       - "8010:8000"
     volumes:
-      - ./kaopeilian-backend/app:/app/app  # 代码热重载
+      - ./kaopeilian-backend/app:/app/app
       - /data/prod-envs/uploads-hua:/app/uploads
       - /data/prod-envs/logs-hua:/app/logs
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network
@@ -164,16 +165,17 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4
+      - RELOAD=false
     ports:
       - "8011:8000"
     volumes:
-      - ./kaopeilian-backend/app:/app/app  # 代码热重载
+      - ./kaopeilian-backend/app:/app/app
       - /data/prod-envs/uploads-yy:/app/uploads
       - /data/prod-envs/logs-yy:/app/logs
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network
@@ -250,16 +252,17 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4
+      - RELOAD=false
     ports:
       - "8012:8000"
     volumes:
-      - ./kaopeilian-backend/app:/app/app  # 代码热重载
+      - ./kaopeilian-backend/app:/app/app
       - /data/prod-envs/uploads-hl:/app/uploads
       - /data/prod-envs/logs-hl:/app/logs
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network
@@ -336,16 +339,17 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4
+      - RELOAD=false
     ports:
       - "8013:8000"
     volumes:
-      - ./kaopeilian-backend/app:/app/app  # 代码热重载
+      - ./kaopeilian-backend/app:/app/app
       - /data/prod-envs/uploads-xy:/app/uploads
       - /data/prod-envs/logs-xy:/app/logs
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network
@@ -423,16 +427,17 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4
+      - RELOAD=false
     ports:
       - "8014:8000"
     volumes:
-      - ./kaopeilian-backend/app:/app/app  # 代码热重载
+      - ./kaopeilian-backend/app:/app/app
       - /data/prod-envs/uploads-fw:/app/uploads
       - /data/prod-envs/logs-fw:/app/logs
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network
@@ -508,6 +513,8 @@ services:
     environment:
       - TZ=Asia/Shanghai
       - PYTHONPATH=/app
+      - WORKERS=4
+      - RELOAD=false
     ports:
       - "8016:8000"
     volumes:
@@ -517,7 +524,6 @@ services:
       - /data/prod-envs/secrets:/app/secrets:ro
       - /etc/localtime:/etc/localtime:ro
       - /etc/timezone:/etc/timezone:ro
-    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
     networks:
       - prod-network
       - kaopeilian-network