docker部署Redis集群-3主3从

Redis集群

准备服务器172.30.72.203，172.30.72.202，172.30.72.201
创建集群文件夹
服务器172.30.72.203

mkdir -p /home/data/tools/redis-cluster/7001/data/logs
mkdir -p /home/data/tools/redis-cluster/7002/data/logs

服务器172.30.72.202

mkdir -p /home/data/tools/redis-cluster/7003/data/logs
mkdir -p /home/data/tools/redis-cluster/7004/data/logs

服务器172.30.72.201

mkdir -p /home/data/tools/redis-cluster/7005/data/logs
mkdir -p /home/data/tools/redis-cluster/7006/data/logs

进入文件夹编辑配置文件

cd /home/data/tools/redis-cluster/7001
vim redis7001.conf

#以下是官网默认配置文件，去除了注释部分，修改了集群相关配置
#bind 127.0.0.1
protected-mode no
port 7001
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile "/data/logs/redis.log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
rdb-del-sync-files no
dir ./
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-diskless-load disabled
repl-disable-tcp-nodelay no
replica-priority 100
acllog-max-len 128
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
lazyfree-lazy-user-del no
oom-score-adj no
oom-score-adj-values 0 200 800
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
# appendfsync no
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
cluster-enabled yes
cluster-config-file nodes-7001.conf
cluster-node-timeout 15000
cluster-announce-ip 172.30.72.203
cluster-announce-port 7001
cluster-announce-bus-port 17001
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
jemalloc-bg-thread yes

初始配置中暂不配置主从复制的验证密码和客户端访问密码，待集群部署完成后再配置
主要修改以下几个地方

#bind 127.0.0.1  #不绑定IP,允许外部网络访问
	protected-mode no #不开启保护模式,允许外部网络访问
	port 7001
	daemonize no #不开启守护进程,让redis随着容器运营
	logfile "/var/logs/redis-server.log"
	appendonly yes
	cluster-enabled yes
	cluster-config-file nodes-7001.conf
	cluster-node-timeout 15000
	cluster-announce-ip 172.31.98.20
	cluster-announce-port 7001
	cluster-announce-bus-port 17001

其他节点修改配置中的端口和IP即可

拉取镜像目前指定6.0.9

docker pull redis:6.0.9

启动容器 网络模式为host
服务器172.30.72.203

docker run --restart always --name redis-cluster-node1 --network=host --privileged=true -v /home/data/tools/redis-cluster/7001/redis7001.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7001/data:/data  -d redis:6.0.9 redis-server /etc/redis/redis.conf

docker run --restart always --name redis-cluster-node2 --network=host --privileged=true -v /home/data/tools/redis-cluster/7002/redis7002.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7002/data:/data  -d redis:6.0.9 redis-server /etc/redis/redis.conf

服务器172.30.72.202

docker run --restart always --name redis-cluster-node3 --network=host --privileged=true -v /home/data/tools/redis-cluster/7003/redis7003.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7003/data:/data  -d redis:6.0.9 redis-server /etc/redis/redis.conf

docker run --restart always --name redis-cluster-node4 --network=host --privileged=true -v /home/data/tools/redis-cluster/7004/redis7004.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7004/data:/data  -d redis:6.0.9 redis-server /etc/redis/redis.conf

服务器172.30.72.201

docker run --restart always --name redis-cluster-node5 --network=host --privileged=true -v /home/data/tools/redis-cluster/7005/redis7005.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7005/data:/data -d redis:6.0.9 redis-server /etc/redis/redis.conf

docker run --restart always --name redis-cluster-node6 --network=host --privileged=true -v /home/data/tools/redis-cluster/7006/redis7006.conf:/etc/redis/redis.conf -v /home/data/tools/redis-cluster/7006/data:/data -d redis:6.0.9 redis-server /etc/redis/redis.conf

进入node1节点

docker exec -it redis-cluster-node1 bash

创建集群

/usr/local/bin/redis-cli --cluster create \
172.30.72.203:7001 \
172.30.72.203:7002 \
172.30.72.202:7003 \
172.30.72.202:7004 \
172.30.72.201:7005 \
172.30.72.201:7006 \
--cluster-replicas 1

注意对应的IP和端口一定要本服务器配置文件的一致
执行后弹出确认分配槽点输入"yes"回车，集群就创建完成了

设置密码 进入节点 docker exec -it redis-cluster-node1 bash

/usr/local/bin/redis-cli -c -p 7001
config set masterauth redispwd
config set requirepass redispwd
config rewrite

配置文件中添加密码配置,保证每次容器重启密码生效
masterauth redispwd
requirepass redispwd