docker安装redis挂载容器卷同时开启持久化 docker安装redis挂载容器卷同时开

一、安装

1.搜索redis容器镜像并拉取容器镜像
2.在宿主机本地创建redis存储配置文件和数据的目录，我这里创建/docker/redis下
3.配置文件
4.启动容器

二、进入容器，指定配置文件启动redis服务

1.启动redis服务
2.指定6380端口登陆客户端

三、删除容器后重新启动容器

1.删除，然后查看宿主机目录下是否有持久化文件，查看这一步可以放在上一步后
2.重启容器

说明：centOS操作系统，操作系统已安装过redis，端口6379已被占用。容器将会使用6380端口。本次操作为了实例化redis数据，并挂载到宿主机，防止容器被删除导致的数据丢失！

一、安装
1.搜索redis容器镜像并拉取容器镜像

[root@localhost]# docker search --limit 10 redis[root@localhost]# docker pull redis

【docker安装redis挂载容器卷同时开启持久化】
2.在宿主机本地创建redis存储配置文件和数据的目录，我这里创建/docker/redis下

[root@localhost redis]# pwd/docker/redis

3.配置文件
复制原有redis.conf到/docker/redis/目录下
修改配置（最重要主要4项：修改后台运行默认为no、端口、存放位置、开启持久化）：

requirepass 123maxclients 10000#如果要外网访问，请注释掉下面，或者修改为0.0.0.0，保险起见，也可以把protected-mode设置为nobind 0.0.0.0protected-mode no#注意修改这里端口，根据你实际暴露端口情况配置port 6380tcp-backlog 511timeout 0tcp-keepalive 300#注意这里要把后台运行设置为no，避免docker后台运行冲突daemonize nosupervised nopidfile /docker/redis/redis.pidloglevel noticedatabases 16always-show-logo yessave 900 1save 300 10save 60 10000stop-writes-on-bgsave-error yesrdbcompression yesrdbchecksum yesdbfilename dump.rdb#注意修改这里的目录为容器内目录，默认reids进来是在/data/目录dir /data/replica-serve-stale-data yesreplica-read-only yesrepl-diskless-sync norepl-diskless-sync-delay 5repl-disable-tcp-nodelay noreplica-priority 100lazyfree-lazy-eviction nolazyfree-lazy-expire nolazyfree-lazy-server-del noreplica-lazy-flush no#注意修改这里的配置，yes开启持久化，no关闭持久化appendonly yesappendfilename "appendonly.aof"appendfsync everysecno-appendfsync-on-rewrite noauto-aof-rewrite-percentage 100auto-aof-rewrite-min-size 64mbaof-load-truncated yesaof-use-rdb-preamble yeslua-time-limit 5000slowlog-log-slower-than 10000slowlog-max-len 128latency-monitor-threshold 0notify-keyspace-events ""hash-max-ziplist-entries 512hash-max-ziplist-value 64list-max-ziplist-size -2list-compress-depth 0set-max-intset-entries 512zset-max-ziplist-entries 128zset-max-ziplist-value 64hll-sparse-max-bytes 3000stream-node-max-bytes 4096stream-node-max-entries 100activerehashing yesclient-output-buffer-limit normal 0 0 0client-output-buffer-limit replica 256mb 64mb 60client-output-buffer-limit pubsub 32mb 8mb 60hz 10dynamic-hz yesaof-rewrite-incremental-fsync yesrdb-save-incremental-fsync yes

4.启动容器
启动命令：docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redis
效果如下：

[root@localhost]# docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redisd536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7d[root@localhost]# docker psCONTAINER IDIMAGECOMMANDCREATEDSTATUSPORTSNAMESd536dd728243redis"docker-entrypoint.s…"3 seconds agoUp 2 seconds6379/tcp, 0.0.0.0:6380->6380/tcp, :::6380->6380/tcpforredis2参数讲解：

参数介绍：

docker run -p 6380:6380 --name forredis2别名
--privileged=true挂载容器卷目录权限
-v /docker/redis/redis.conf[宿主机配置文件]:/etc/redis/redis.conf[容器配置文件]
-v /docker/redis/data[宿主机数据存储位置]:/data [容器数据存储位置]
-d redis[:版本号]

二、进入容器，指定配置文件启动redis服务
1.启动redis服务

[root@localhost data]# docker exec -it forredis2 /bin/bashroot@d536dd728243:/data# redis-server /etc/redis/redis.conf24:C 02 Jun 2022 02:42:56.096 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo24:C 02 Jun 2022 02:42:56.096 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=24, just started24:C 02 Jun 2022 02:42:56.096 # Configuration loaded24:M 02 Jun 2022 02:42:56.097 * monotonic clock: POSIX clock_gettime_.__.-``__ ''-.__.-```.`_.''-._Redis 6.2.6 (00000000/0) 64 bit.-`` .-```.```\/_.,_ ''-._ (',.-`| `,)Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'|Port: 6380 |`-._`._/_.-'|PID: 24`-._`-._`-./_.-'_.-' |`-._`-._`-.__.-'_.-'_.-'| |`-._`-.__.-'_.-'|https://redis.io`-._`-._`-.__.-'_.-'_.-' |`-._`-._`-.__.-'_.-'_.-'| |`-._`-.__.-'_.-'|`-._`-._`-.__.-'_.-'_.-'`-._`-.__.-'_.-'`-.__.-'`-.__.-'

如果要后台运行，将启动redis命令后加上&，即
redis-server /etc/redis/redis.conf &
“/etc/redis/redis.conf”为容器内配置文件，已通过启动容器时挂载到宿主机的/docker/redis/redis.conf

2.指定6380端口登陆客户端

root@ce16f8c4fd8c:/data# redis-cli -p 6380127.0.0.1:6380> auth 123OK127.0.0.1:6380> keys *(empty array)127.0.0.1:6380> set a 1OK127.0.0.1:6380> keys *1) "a"

三、删除容器后重新启动容器为了验证redis持久化，删除容器后数据在宿主机不会丢失，我们尝试删除容器后重新启动

1.删除，然后查看宿主机目录下是否有持久化文件，查看这一步可以放在上一步后

[root@localhost ~]# docker rm -f forredis2forredis2[root@localhost ~]# docker ps -aCONTAINER IDIMAGECOMMANDCREATEDSTATUSPORTSNAMESe28f2bd4b59eredis"docker-entrypoint.s…"10 hours agoExited (130) 10 hours agoexciting_yalow4e291d491cdaredis"docker-entrypoint.s…"10 hours agoExited (0) 10 hours agodreamy_rhodesbe3f2f06ed9fredis"docker-entrypoint.s…"12 hours agoExited (0) 12 hours agoawesome_jones9a206e517842redis"docker-entrypoint.s…"12 hours agoExited (0) 12 hours agohopeful_volhard69c9f429c98a7614ae9453d1"docker-entrypoint.s…"16 hours agoExited (1) 16 hours agoyouthful_goodall25f26d7892d5redis"docker-entrypoint.s…"18 hours agoExited (0) 16 hours agoamazing_lovelace[root@localhost ~]# docker psCONTAINER IDIMAGECOMMANDCREATEDSTATUSPORTSNAMES[root@localhost ~]# cd /docker/redis/data/[root@localhost data]# lsappendonly.aofdump.rdb

2.重启容器

[root@localhost data]# docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redisd536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7dc

重复第【二】步的操作，进入redis，查看数据是否存在