centos7搭建redis7.0.6cluster集群（编译和docker安装）及docker单机

本文尝试两种安装模式编译安装和docker容器安装

一，编译安装

1，环境准备

系统centos7.9,IP及端口

10.161.3.12:6379

10.161.3.12:6380

10.161.3.13:6379

10.161.3.13:6380

10.161.3.14:6379

10.161.3.14:6380

防火墙端口开放：

sudo firewall-cmd --zone=public --add-port=6379/tcp --permanent

sudo firewall-cmd --zone=public --add-port=6380/tcp --permanent

firewall-cmd --list-all

关闭selinux：

vi /etc/selinux/config

#SELINUX=enforcing #注释掉

#SELINUXTYPE=targeted #注释掉

SELINUX=disabled #增加

:wq! #保存退出

setenforce 0 #使配置立即生效

升级gcc版本：

CentOS 7.x默认是gcc version 4.8.5，升级到最新版本，

yum -y install centos-release-scl

yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils

scl enable devtoolset-9 bash #版本临时生效

echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile #永久生效

2,安装redis

所有节点创建目录

mkdir -p /usr/local/redis_cluster/redis_63{79,80}/{conf,pid,logs}

Redis安装包下载：

wget https://download.redis.io/releases/redis-7.0.6.tar.gz

tar -zxvf redis-7.0.6.tar.gz -C /usr/local/redis_cluster/

cd /usr/local/redis_cluster/redis-7.0.6/

make && make install

3,编辑配置

cp /usr/local/redis_cluster/redis-7.0.6/redis.conf /usr/local/redis_cluster/redis_6379/conf/

cp /usr/local/redis_cluster/redis-7.0.6/redis.conf /usr/local/redis_cluster/redis_6380/conf/

相同的配置文件每节点创建一份（共6份），按照注释修改对应的配置项即可

# 守护进行模式启动

daemonize yes

# 设置数据库数量，默认数据库为0

databases 16

# 绑定地址，需要修改

bind 192.168.0.120

# 绑定端口，需要修改

port 6379

# pid文件存储位置，文件名需要修改

pidfile /usr/local/redis_cluster/redis_6379/pid/redis_6379.pid

# log文件存储位置，文件名需要修改

logfile /usr/local/redis_cluster/redis_6379/logs/redis_6379.log

# RDB快照备份文件名，文件名需要修改

dbfilename redis_6379.rdb

# 本地数据库存储目录，需要修改

dir /usr/local/redis_cluster/redis_6379

#持久化

appendonly yes

# 集群相关配置 # 是否以集群模式启动

cluster-enabled yes

# 集群节点回应最长时间，超过该时间被认为下线

cluster-node-timeout 15000

# 生成的集群节点配置文件名，文件名需要修改

cluster-config-file nodes_6379.conf

#集群节点配置文件，这个文件是不能手动编辑的。确保每一个集群节点的配置文件不通

cluster-config-file nodes_7001.conf

#设置密码

requirepass 123456

#主从切换需要配置

masterauth 123456

4，启动及创建集群

每个主机上执行如下2条命令

redis-server /usr/local/redis_cluster/redis_6379/conf/redis.cnf

redis-server /usr/local/redis_cluster/redis_6380/conf/redis.cnf

cd /usr/local/redis_cluster/redis-7.0.6/src/

./redis-cli --cluster create --cluster-replicas 1 10.161.3.12:6379 10.161.3.12:6380 10.161.3.13:6379 10.161.3.13:6380 10.161.3.14:6379 10.161.3.14:6380 -a 123456

redis-cli -h 10.161.3.12 -p 6380 -c

测试：

set test 'this is test'

get test

cluster info查看集群信息

cluster nodes查看集群节点信息

5，集群高可用

kill 掉一个master节点，其slave节点会自动变为master

恢复master节点后，其会自动变为slave

二，docker容器安装单机版集群

编辑docker-compose.yml

version: '3'

networks:
  redis-net:
    external: true

services:
  redis-6380:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6380
    privileged: true
    ports:
      - 6380:6380
      - 16380:16380
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6380/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6380/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

  redis-6381:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6381
    privileged: true
    ports:
      - 6381:6381
      - 16381:16381
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6381/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6381/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

  redis-6382:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6382
    privileged: true
    ports:
      - 6382:6382
      - 16382:16382
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6382/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6382/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

  redis-6383:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6383
    privileged: true
    ports:
      - 6383:6383
      - 16383:16383
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6383/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6383/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

  redis-6384:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6384
    privileged: true
    ports:
      - 6384:6384
      - 16384:16384
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6384/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6384/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

  redis-6385:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-6385
    privileged: true
    ports:
      - 6385:6385
      - 16385:16385
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /home/redis-cluster/node-6385/conf/redis.conf:/etc/redis/redis.conf
      - /home/redis-cluster/node-6385/data:/data
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net

编辑一键启动脚本redis_cluster.sh

#!/bin/sh

#设置redis的连接密码
redis_pwd="xxxx6688"
#当前主机IP
host_ip="192.168.31.67"

redis_net=`docker network ls | grep redis-net  | awk '{print $2}'`
if [ "$redis_net"x != "redis-net"x ]; then
    docker  network create redis-net
    echo "docker  created  network : redis-net"
fi
echo "docker  already exists  network : redis-net"
for port in $(seq 6380 6385);

do

mkdir -p /home/redis-cluster/node-${port}/conf

touch /home/redis-cluster/node-${port}/conf/redis.conf

cat << EOF > /home/redis-cluster/node-${port}/conf/redis.conf

#节点端口

port ${port}

#添加访问认证

requirepass $redis_pwd

#如果主节点开启了访问认证，从节点访问主节点需要认证

masterauth $redis_pwd

#保护模式，默认值 yes，即开启。开启保护模式以后，需配置 bind ip 或者设置访问密码；关闭保护模式，外部网络可以直接访问

protected-mode no

#bind 0.0.0.0

#是否以守护线程的方式启动（后台启动），默认 no

daemonize no

#是否开启 AOF 持久化模式，默认 no

appendonly yes

#是否开启集群模式，默认 no

cluster-enabled yes

#集群节点信息文件

cluster-config-file nodes.conf

#群节点连接超时时间

cluster-node-timeout 5000

#集群节点 IP修改

cluster-announce-ip ${host_ip}

#集群节点映射端口

cluster-announce-port ${port}

#集群节点总线端口

cluster-announce-bus-port 1${port}

EOF

done

docker-compose up -d --build

docker exec -it redis-6380 /bin/bash -c "redis-cli -a ${redis_pwd} --cluster create ${host_ip}:6380 ${host_ip}:6381 ${host_ip}:6382 ${host_ip}:6383 ${host_ip}:6384 ${host_ip}:6385 --cluster-replicas 1"

sleep  5
docker exec -it redis-6380 /bin/bash -c "redis-cli -a ${redis_pwd} -p 6380 cluster info"
docker exec -it redis-6380 /bin/bash -c "redis-cli -a ${redis_pwd} -p 6380 cluster nodes"

echo "redis-cluster is OK!!!"

docker单机

docker pull redis:latest

mkdir -p /root/redis/conf

mkdir -p /root/redis/data

vim /root/redis/conf/redis.conf

##节点端口

port 46379

##允许任何来源

bind 0.0.0.0

## 是为了禁止公网访问redis cache，加强redis安全的。它启用的条件，有两个：1） 没有bind IP 2） 没有设置访问密码 启用后只能够通过lookback ip（127.0.0.1）访问Redis cache，如果从外网访问，则会返回相应的错误信息

protected-mode yes

##开启持久化模式

appendonly yes

appendfilename appendonly.aof

#开启混合持久化

aof-use-rdb-preamble yes

# 文件达到1m时进行重写，然后如果文件大小增长了一倍，也会触发重写。

auto-aof-rewrite-min-size 1mb

auto-aof-rewrite-percentage 100

##AOF 文件和 Redis 命令是同步频率的，假设配置为 always，其含义为当 Redis 执行命令的时候，则同时同步到 AOF 文件，这样会使得 Redis 同步刷新 AOF 文件，造成缓慢。而采用 evarysec 则代表

## 每秒同步一次命令到 AOF 文件。

appendfsync everysec

#pidfile redis.pid

#进程pid文件,加port以示区分

pidfile /data/redis/data/redis_6379.pid

# 后台运行 ---- docker中使用后台运行将无法启动容器(应该是容器无法检测后台运行进程)

# daemonize yes

#databases 20 默认的数据库个数

#设置容器初始化密码

#requirepass test1323

vim docker-compose.yml

version: '3'

networks:
  redis-net:
    external: true

services:
  redis:
    image: redis:7.0.11
    restart: unless-stopped
    #hostname: redis
    container_name: redis-7.0.11
    privileged: true
    ports:
      - 46379:46379
    environment:
      TZ: Asia/Shanghai
    volumes:
      - /root/redis7.0.11-host/data:/data
      - /root/redis7.0.11-host/redis.conf:/etc/redis/redis.conf
      #- ./logs:/logs
    command: ["redis-server","/etc/redis/redis.conf"]
    networks:
      - redis-net