基于Docker的Redis哨兵模式部署（支持离线部署）

 

部署架构

 

一、物料准备

1、Docker安装包：https://download.docker.com/linux/static/stable/x86_64/docker-29.7.2.tgz

2、Docker Compose可执行文件：https://github.com/docker/compose/releases/download/v5.4.0/docker-compose-linux-x86_64

3、Redis镜像：redis:8.10.0

 

二、安装Docker、Docker Compose

1、Docker：

tar xf docker-29.7.2.tgz
mv docker/* /usr/bin/
rm -rf docker docker-29.7.2.tgz
cat > /etc/systemd/system/docker.service << EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containerd.service time-set.target
Wants=network-online.target containerd.service
 
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutStartSec=0
RestartSec=2
Restart=always
 
# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229.
# Both the old, and new location are accepted by systemd 229 and up, so using the old location
# to make them work for either version of systemd.
StartLimitBurst=3
 
# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230.
# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make
# this option work for either version of systemd.
StartLimitInterval=60s
 
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
# Older systemd versions default to a LimitNOFILE of 1024:1024, which is insufficient for many
# applications including dockerd itself and will be inherited. Raise the hard limit, while
# preserving the soft limit for select(2).
LimitNOFILE=1024:524288
 
# Comment TasksMax if your systemd version does not support it.
# Only systemd 226 and above support this option.
TasksMax=infinity
 
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
 
# kill only the docker process, not all processes in the cgroup
KillMode=process
OOMScoreAdjust=-500
 
[Install]
WantedBy=multi-user.target
 
EOF

设置docker存储位置（注意修改存储位置）

cat > /etc/docker/daemon.json << EOF
{
  "data-root": "/data/docker",
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file": "5"
  }
}
EOF
systemctl daemon-reload
systemctl start docker
systemctl enable docker

 

2、Docker Compose：

mv docker-compose-linux-x86_64 /usr/bin/docker-compose
chmod +x /usr/bin/docker-compose

 

三、部署Redis

所有节点文件保持一致，只需要修改docker-compose.yml中的REDIS_ROLE值。

redis.conf

bind * -::*
port 6379
requirepass Password123@redis
masterauth Password123@redis
appendonly yes
save 900 1
save 300 10
save 60 10000

 

sentinel_conf/sentinel.conf

bind * -::*
port 26379
protected-mode no
sentinel monitor mymaster 192.168.164.168 6379 2
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 60000
sentinel parallel-syncs mymaster 1
sentinel auth-pass mymaster Password123@redis

 

docker-compose.yml

只需修改REDIS_ROLE，主节点REDIS_ROLE设置为master，其他节点设置为replica。 

name: redis
services:
 
  redis_server:
    image: redis:8.10.0
    container_name: redis_server
    restart: unless-stopped
    network_mode: host
    environment:
      REDIS_ROLE: 'master'
      REDIS_MASTER_IP: '192.168.164.168'
    volumes:
      - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf:ro
      - /data/redis/redis_data:/data
    command:
      - /bin/sh
      - -c
      - |
          if [ "$${REDIS_ROLE}" = 'master' ]; then
            exec redis-server /usr/local/etc/redis/redis.conf
          else
            exec redis-server /usr/local/etc/redis/redis.conf \
              --replicaof "$${REDIS_MASTER_IP}" 6379
          fi
 
  redis_sentinel:
    image: redis:8.10.0
    container_name: redis_sentinel
    restart: unless-stopped
    network_mode: host
    volumes:
      - /data/redis/sentinel_conf:/usr/local/etc/redis
      - /data/redis/sentinel_data:/data
    command:
      - redis-server
      - /usr/local/etc/redis/sentinel.conf
      - --sentinel

 

启动（168、169、170按顺序启动）

docker-compose up -d