linux服务-Nginx+Tomcat+Redis之Session 共享 - 容器compose

梁正雄2025-11-25 15:59

Nginx+Tomcat+Redis之Session 共享 - 容器compose版

补充容器-compose

参考：容器版本，豆包ai，使用docker搭建redis集群，示例容器归集 提取码:1234

一、redis

  • 配置文件准备

    • redis.conf使用容器版本 - 1.2、集群构建内容

    • redis-init.sh

      bash 复制代码 
      #!/bin/sh
# 去掉 set -e（避免因非关键错误导致脚本退出）

# 核心配置
REDIS_PASSWORD="xiong"
NODE_NAME="$REDIS_NODE_NAME"
ALL_NODES="redis-1 redis-2 redis-3 redis-4 redis-5 redis-6"

echo "===================== 节点 $NODE_NAME 启动 ====================="
# 启动 Redis 服务（前台运行，避免容器退出）
/data/redis/bin/redis-server /data/redis/conf/redis.conf &

# 等待当前节点 Redis 就绪（最多 30 秒）
echo "等待当前节点 Redis 就绪..."
wait_count=0
while [ $wait_count -lt 15 ]; do
  # 忽略错误，只检查是否能连接
  /data/redis/bin/redis-cli -h "$NODE_NAME" -p 6379 -a "$REDIS_PASSWORD" ping 2>/dev/null | grep "PONG" >/dev/null 2>&1
  if [ $? -eq 0 ]; then
    echo "✅ 节点 $NODE_NAME 已就绪"
    break
  fi
  wait_count=$((wait_count + 1))
  sleep 2
done

# 只有 redis-1 执行集群初始化
if [ "$NODE_NAME" = "redis-1" ]; then
  echo "=== 等待所有节点就绪后初始化集群（最多等待 5 分钟） ==="
  ready_nodes=0
  wait_all_count=0
  # 最多等待 300 秒（150 次重试）
  while [ $wait_all_count -lt 150 ] && [ $ready_nodes -lt 6 ]; do
    ready_nodes=0
    for node in $ALL_NODES; do
      /data/redis/bin/redis-cli -h "$node" -p 6379 -a "$REDIS_PASSWORD" ping 2>/dev/null | grep "PONG" >/dev/null 2>&1
      if [ $? -eq 0 ]; then
        ready_nodes=$((ready_nodes + 1))
      fi
    done
    echo "当前就绪节点：$ready_nodes/6（已等待 $((wait_all_count*2)) 秒）"
    if [ $ready_nodes -eq 6 ]; then
      echo "✅ 所有节点均已就绪，开始初始化集群..."
      break
    fi
    wait_all_count=$((wait_all_count + 1))
    sleep 2
  done

  # 执行集群初始化（仅一次，避免重试冲突）
  if [ $ready_nodes -eq 6 ]; then
    echo yes | /data/redis/bin/redis-cli -a "$REDIS_PASSWORD" --cluster create redis-1:6379 redis-2:6379 redis-3:6379 redis-4:6379 redis-5:6379 redis-6:6379 --cluster-replicas 1
    if [ $? -eq 0 ]; then
      echo "🎉 集群初始化成功！"
    else
      echo "❌ 集群初始化失败，但容器继续运行（可手动执行初始化命令）"
    fi
  else
    echo "❌ 等待超时，未集齐 6 个节点，放弃初始化（容器继续运行）"
  fi
else
  echo "=== 节点 $NODE_NAME 不执行初始化，等待集群就绪 ==="
  while true; do
    /data/redis/bin/redis-cli -h redis-1 -p 6379 -a "$REDIS_PASSWORD" cluster info 2>/dev/null | grep "cluster_state:ok" >/dev/null 2>&1
    if [ $? -eq 0 ]; then
      echo "✅ 集群已就绪！节点 $NODE_NAME 正常运行"
      break
    fi
    sleep 10
  done
fi

# 增强保活：永远不退出（多种方式确保容器前台运行）
echo "节点 $NODE_NAME 进入保活状态，持续运行中..."
while true; do
  # 检查 Redis 进程是否存活，若退出则重启
  if ! ps aux | grep redis-server | grep -v grep >/dev/null; then
    echo "⚠️ Redis 进程退出，重启中..."
    /data/redis/bin/redis-server /data/redis/conf/redis.conf &
  fi
  sleep 30
done

    • 将两个文件都放到/data下

      bash 复制代码 
      for ((i=1;i<=6;i++));do 
    mkdir /data/redisdata/redis$i/{conf,data} -p;
    cp /data/redis.conf /data/redisdata/redis$i/conf;
done
mkdir /data/redisdata/init -p
cp /data/redis-init.sh /data/redisdata/init/redis-init.sh
chmod 777 redisdata/ -R

  • 容器编排

    • 查最后的compose文件

      bash 复制代码 
      services:
  redis-1:
  redis-2:
  redis-3:
  redis-4:
  redis-5:
  redis-6:
networks:
  app-net:
    driver: bridge
    name: app-net
    ipam:
      driver: default
      config:
        - subnet: 10.0.2.0/24
          gateway: 10.0.2.1

    • 编排过程

      bash 复制代码 
      [root@localhost opt]# docker-compose up
WARN[0000] Found orphan containers ([tomcat-2 tomcat-1 nginx-1]) for this project. If you removed or renamed this service in your compose file, you can run this command with the --remove-orphans flag to clean it up. 
Attaching to redis-1, redis-2, redis-3, redis-4, redis-5, redis-6
redis-2  | ===================== 节点 redis-2 启动 =====================
redis-2  | 等待当前节点 Redis 就绪...
redis-2  | .....
redis-1  | 当前就绪节点：6/6（已等待 0 秒）
redis-1  | ✅ 所有节点均已就绪，开始初始化集群...
redis-1  | Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
redis-1  | >>> Performing hash slots allocation on 6 nodes...
redis-1  | Master[0] -> Slots 0 - 5460
redis-1  | Master[1] -> Slots 5461 - 10922
redis-1  | Master[2] -> Slots 10923 - 16383
redis-1  | Adding replica redis-5:6379 to redis-1:6379
redis-1  | Adding replica redis-6:6379 to redis-2:6379
redis-1  | Adding replica redis-4:6379 to redis-3:6379
redis-1  | M: b54...974 redis-1:6379
redis-1  | M: 915...ced redis-2:6379
redis-1  | M: 06e...5cd redis-3:6379
redis-1  | S: 951...22e redis-4:6379
redis-1  | S: 98b...482 redis-5:6379
redis-1  | S: 1fe...645 redis-6:6379
redis-1  | 
redis-1  | >>> Performing Cluster Check (using node redis-1:6379)
redis-1  | M: b54...974 redis-1:6379
redis-1  | S: 951...22e 10.0.2.6:6379
redis-1  | S: 1fe...645 10.0.2.5:6379
redis-1  | S: 98b...482 10.0.2.7:6379
redis-1  | M: 915...ced 10.0.2.2:6379
redis-1  | M: 06e...5cd 10.0.2.4:6379
redis-1  | [OK] All nodes agree about slots configuration.
redis-1  | >>> Check for open slots...
redis-1  | >>> Check slots coverage...
redis-1  | [OK] All 16384 slots covered.
redis-1  | 🎉 集群初始化成功！
redis-1  | 节点 redis-1 进入保活状态，持续运行中...
redis-6  | ✅ 集群已就绪！节点 redis-6 .......

二、tomcat

  • context.xml <-- 不知道怎么回事 动态生成没有生效，直接写死绑定了

    bash 复制代码 
    <?xml version="1.0" encoding="UTF-8"?>
<Context>
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
    <Resources cachingAllowed="true" cacheMaxSize="102400" />

    <Valve className="com.naritech.nicole.gump.RedisSessionHandlerValve" />
    <Manager className="com.naritech.nicole.gump.RedisSessionManager"
             nodes="redis-1:6379,redis-2:6379,redis-3:6379,redis-4:6379,redis-5:6379,redis-6:6379"
             password="xiong"
             database="0"
             maxInactiveInterval="1800"
             timeout="3000"
             maxRedirections="5"
             cluster="true" />
</Context>

三、docker-compose.yml

  • Yml文件

    bash 复制代码 
    services:
  # Redis 集群 6 节点（保持不变）
  redis-1:
    image: redis:7.2.12
    container_name: redis-1
    environment:
      - REDIS_NODE_NAME=redis-1
    ports:
      - "6379:6379"
    networks:
      app-net:
        aliases:
          - redis-1
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis1/conf:/data/redis/conf
      - /data/redisdata/redis1/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    # 健康检查：确保 Redis 启动且集群状态正常
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  redis-2:
    image: redis:7.2.12
    container_name: redis-2
    environment:
      - REDIS_NODE_NAME=redis-2
    ports:
      - "6380:6379"
    networks:
      app-net:
        aliases:
          - redis-2
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis2/conf:/data/redis/conf
      - /data/redisdata/redis2/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  redis-3:
    image: redis:7.2.12
    container_name: redis-3
    environment:
      - REDIS_NODE_NAME=redis-3
    ports:
      - "6381:6379"
    networks:
      app-net:
        aliases:
          - redis-3
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis3/conf:/data/redis/conf
      - /data/redisdata/redis3/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  redis-4:
    image: redis:7.2.12
    container_name: redis-4
    environment:
      - REDIS_NODE_NAME=redis-4
    ports:
      - "6382:6379"
    networks:
      app-net:
        aliases:
          - redis-4
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis4/conf:/data/redis/conf
      - /data/redisdata/redis4/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  redis-5:
    image: redis:7.2.12
    container_name: redis-5
    environment:
      - REDIS_NODE_NAME=redis-5
    ports:
      - "6383:6379"
    networks:
      app-net:
        aliases:
          - redis-5
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis5/conf:/data/redis/conf
      - /data/redisdata/redis5/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  redis-6:
    image: redis:7.2.12
    container_name: redis-6
    environment:
      - REDIS_NODE_NAME=redis-6
    ports:
      - "6384:6379"
    networks:
      app-net:
        aliases:
          - redis-6
    volumes:
      - /data/redisdata/init:/data/redis/init
      - /data/redisdata/redis6/conf:/data/redis/conf
      - /data/redisdata/redis6/data:/data/redis/data
    entrypoint: ["/bin/sh", "-c", "/data/redis/init/redis-init.sh"]
    restart: always
    healthcheck:
      test: ["CMD", "/data/redis/bin/redis-cli", "-a", "xiong", "CLUSTER", "info", "|", "grep", "-q", "cluster_state:ok"]
      interval: 5s       # 每 5 秒检查一次
      timeout: 3s        # 检查超时时间 3 秒
      retries: 10        # 重试 10 次仍失败则标记为不健康
      start_period: 30s  # 启动后 30 秒再开始检查（给集群构建时间）

  # Tomcat-1（语法正确，缩进统一）
  tomcat-1:
    image: tomcat:8.5.100
    container_name: tomcat-1
    ports:
      - "18080:8080"
    networks:
      app-net:
        aliases:
          - tomcat-1
    depends_on:
      redis-1:
        condition: service_healthy
      redis-2:
        condition: service_healthy
      redis-3:
        condition: service_healthy
      redis-4:
        condition: service_healthy
      redis-5:
        condition: service_healthy
      redis-6:
        condition: service_healthy

    volumes:
      - /data/tomcatdata/conf/context.xml:/data/tomcat/conf/context.xml
      - /data/tomcatdata/webapps/:/data/tomcat/webapps/
      - /data/tomcatdata/logs/:/data/tomcat/logs/
    entrypoint: ["/data/tomcat/bin/catalina.sh","run"]

    restart: always  # 新增：自动重启

  # Tomcat-2（修复核心语法错误：entrypoint 缩进）
  tomcat-2:
    image: tomcat:8.5.100
    container_name: tomcat-2
    ports:
      - "18081:8080"
    networks:
      app-net:
        aliases:
          - tomcat-2
    depends_on:
      redis-1:
        condition: service_healthy
      redis-2:
        condition: service_healthy
      redis-3:
        condition: service_healthy
      redis-4:
        condition: service_healthy
      redis-5:
        condition: service_healthy
      redis-6:
        condition: service_healthy
    volumes:
      - /data/tomcatdata/conf/context.xml:/data/tomcat/conf/context.xml
      - /data/tomcatdata/webapps/:/data/tomcat/webapps/
      - /data/tomcatdata/logs2/:/data/tomcat/logs/
    entrypoint: ["/data/tomcat/bin/catalina.sh","run"]
    restart: always

  # Nginx（修复配置目录，匹配官方镜像）
  nginx-1:
    image: nginx:1.29.3
    container_name: nginx-1
    ports:
      - "8888:8080"
    networks:
      app-net:
        aliases:
          - nginx-1
    depends_on:
      - tomcat-1
      - tomcat-2
    volumes:
      - /data/nginxdata/conf/conf.d:/data/nginx/conf/conf.d


networks:
  app-net:
    driver: bridge
    name: app-net
    ipam:
      driver: default
      config:
        - subnet: 10.0.2.0/24
          gateway: 10.0.2.1
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