docker安装redis挂载容器卷同时开启持久化

目录

• 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

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 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

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：

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/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
  `-._    `-._`-.__.-'_.-'    _.-'
 |`-._`-._    `-.__.-'    _.-'_.-'|
 |    `-._`-._        _.-'_.-'    |
  `-._    `-._`-.__.-'_.-'    _.-'
      `-._    `-.__.-'    _.-'
          `-._        _.-'
              `-.__.-'

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"

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

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

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"

数据存在，成功！

到此这篇关于docker安装redis挂载容器卷同时开启持久化的文章就介绍到这了,更多相关docker 安装redis挂载容器卷内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！