docker安装redis挂载容器卷同时开启持久化
目录
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一、安装
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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
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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
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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
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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
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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 123
- maxclients 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no
- bind 0.0.0.0
- protected-mode no
- #注意修改这里端口,根据你实际暴露端口情况配置
- port 6380
- tcp-backlog 511
- timeout 0
- tcp-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 no
- supervised no
- pidfile /docker/redis/redis.pid
- loglevel notice
- 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
- #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 yes
- replica-read-only yes
- repl-diskless-sync no
- repl-diskless-sync-delay 5
- repl-disable-tcp-nodelay no
- replica-priority 100
- lazyfree-lazy-eviction no
- lazyfree-lazy-expire no
- lazyfree-lazy-server-del no
- replica-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 yes
- appendfilename “appendonly.aof”
- appendfsync everysec
- 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
- 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
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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 redis
- d536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7d
- [root@localhost]# docker ps
- CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
- d536dd728243 redis “docker-entrypoint.s…” 3 seconds ago Up 2 seconds 6379/tcp, 0.0.0.0:6380->6380/tcp, :::6380->6380/tcp forredis2参数讲解:
复制代码 参数介绍:
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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/bash
- root@d536dd728243:/data# redis-server /etc/redis/redis.conf
- 24:C 02 Jun 2022 02:42:56.096 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
- 24:C 02 Jun 2022 02:42:56.096 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=24, just started
- 24:C 02 Jun 2022 02:42:56.096 # Configuration loaded
- 24: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
- `-._ `-._`-.__.-‘_.-‘ _.-‘
- |`-._`-._ `-.__.-‘ _.-‘_.-‘|
- | `-._`-._ _.-‘_.-‘ |
- `-._ `-._`-.__.-‘_.-‘ _.-‘
- `-._ `-.__.-‘ _.-‘
- `-._ _.-‘
- `-.__.-‘
复制代码 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 6380
- 127.0.0.1:6380> auth 123
- OK
- 127.0.0.1:6380> keys *
- (empty array)
- 127.0.0.1:6380> set a 1
- OK
- 127.0.0.1:6380> keys *
- 1) “a”
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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 forredis2
- forredis2
- [root@localhost ~]# docker ps -a
- CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
- e28f2bd4b59e redis “docker-entrypoint.s…” 10 hours ago Exited (130) 10 hours ago exciting_yalow
- 4e291d491cda redis “docker-entrypoint.s…” 10 hours ago Exited (0) 10 hours ago dreamy_rhodes
- be3f2f06ed9f redis “docker-entrypoint.s…” 12 hours ago Exited (0) 12 hours ago awesome_jones
- 9a206e517842 redis “docker-entrypoint.s…” 12 hours ago Exited (0) 12 hours ago hopeful_volhard
- 69c9f429c98a 7614ae9453d1 “docker-entrypoint.s…” 16 hours ago Exited (1) 16 hours ago youthful_goodall
- 25f26d7892d5 redis “docker-entrypoint.s…” 18 hours ago Exited (0) 16 hours ago amazing_lovelace
- [root@localhost ~]# docker ps
- CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
- [root@localhost ~]# cd /docker/redis/data/
- [root@localhost data]# ls
- appendonly.aof dump.rdb
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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 redis
- d536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7dc
复制代码 重复第【二】步的操作,进入redis,查看数据是否存在
- [root@localhost ~]# docker exec -it forredis2 /bin/bash
- root@d536dd728243:/data# redis-cli -p 6380
- 127.0.0.1:6380> auth 123
- 127.0.0.1:6380> keys *
- 1) “a”
复制代码 数据存在,成功!
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