【教程分享】一键部署Redis，轻松搞定Docker安装和配置！-CFANZ编程社区

1 下载

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_docker

下载 6.2.7 版本：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_02

[root@service-monitoring ~]# docker pull redis:6.2.7
6.2.7: Pulling from library/redis
025c56f98b67: Pull complete 
060e65aed679: Pull complete 
b95291e865b7: Pull complete 
e3023c0b11d1: Pull complete 
143500497a02: Pull complete 
c38298c98c43: Pull complete 
Digest: sha256:a93c14584715ec5bd9d2648d58c3b27f89416242bee0bc9e5fb2edc1a4cbec1d
Status: Downloaded newer image for redis:6.2.7
docker.io/library/redis:6.2.7
[root@service-monitoring conf]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago      569MB
redis         6.2.7           4b1123a829a1   4 months ago    113MB

2 配置文件

为方便挂载，新建目录及文件：

[root@service-monitoring home]# mkdir redis6/conf -p
[root@service-monitoring home]# cd redis6/conf/
[root@service-monitoring conf]# touch redis.conf
[root@service-monitoring conf]# ll
total 0
-rw-r--r-- 1 root root 0 Apr 27 13:24 redis.conf

3 启动

在 Docker 中启动一个 Redis 6.2.7 容器，并将容器内部的 Redis 服务端口映射到主机的 6379 端口，同时将 Redis 数据持久化到主机上，并使用自定义的 Redis 配置文件来启动 Redis 服务。

# 用于启动一个新的容器
# 将容器内部的 Redis 服务端口（默认为 6379）映射到主机的 6379 端口，以便可以通过主机的 IP 地址和端口来访问 Redis 服务。
# 为容器指定一个名称【redis】，方便后续管理和操作。
docker run -p 6379:6379 --name redis \
# 将主机上的 /home/redis6/data 目录挂载到容器内部的 /data 目录，以便可以将 Redis 数据持久化到主机
-v /home/redis6/data:/data \
# 将主机上的 /home/redis6/conf/redis.conf 文件挂载到容器内部的 /etc/redis/redis.conf 文件，以便可以使用自定义的 Redis 配置文件
-v /home/redis6/conf/redis.conf:/etc/redis/redis.conf \
# 指定要使用的 Redis 镜像及版本号，并在后台运行容器
-d redis:6.2.7 \
# 在容器内部执行的命令，启动 Redis 服务，并使用 /etc/redis/redis.conf 配置文件
redis-server /etc/redis/redis.conf

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_docker_03

[root@service-monitoring conf]# docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED         STATUS         PORTS                                                  NAMES
5bce12836608   redis:6.2.7           "docker-entrypoint.s…"   4 minutes ago   Up 4 minutes   0.0.0.0:6379->6379/tcp, :::6379->6379/tcp              redis
e380fdc23c78   mysql:5.7.42-oracle   "docker-entrypoint.s…"   14 hours ago    Up 14 hours    0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql
[root@service-monitoring conf]#

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_04

4 测试

[root@service-monitoring conf]# docker exec -it redis bash
root@5bce12836608:/data# ls /
bin  boot  data  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@5bce12836608:/data# redis-cli
127.0.0.1:6379>  # Ctrl+D 退出
root@5bce12836608:/data# whereis redis-cli
redis-cli: /usr/local/bin/redis-cli
root@5bce12836608:/data# cd /usr/local/bin
root@5bce12836608:/usr/local/bin# ls -l
total 27484
-rwxrwxr-x 1 root root      661 Dec  6 06:51 docker-entrypoint.sh
-rwxr-xr-x 1 root root  2289664 Dec  7  2021 gosu
-rwxr-xr-x 1 root root  6787672 Dec  6 06:52 redis-benchmark
lrwxrwxrwx 1 root root       12 Dec  6 06:52 redis-check-aof -> redis-server
lrwxrwxrwx 1 root root       12 Dec  6 06:52 redis-check-rdb -> redis-server
-rwxr-xr-x 1 root root  6686032 Dec  6 06:52 redis-cli
lrwxrwxrwx 1 root root       12 Dec  6 06:52 redis-sentinel -> redis-server
-rwxr-xr-x 1 root root 12369368 Dec  6 06:52 redis-server
root@5bce12836608:/usr/local/bin# redis-cli
127.0.0.1:6379> set java 'Edge'
OK
127.0.0.1:6379> get java
"Edge"
127.0.0.1:6379>  # Ctrl+D 退出
root@5bce12836608:/usr/local/bin#

5 客户端连接

使用 ARDM 连接访问，就看到刚才 set 进去的 java：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_05

6 自动重启

随云服务重启，Redis 内部也要全部重启，如何设置呢？

root@5bce12836608:/usr/local/bin# Ctrl+D 退出容器内部的终端
exit
[root@service-m[root@service-monitoring redis6]# docker update mysql --restart=always
mysql
[root@service-monitoring redis6]# docker update redis --restart=always
redis
[root@service-monitoring redis6]# onitoring conf]#

[root@service-monitoring redis6]# docker update mysql --restart=always
mysql
[root@service-monitoring redis6]# docker update redis --restart=always
redis
[root@service-monitoring redis6]#

也可在 docker run 时加参数--restart=always。

7 配置文件

[root@service-monitoring conf]# vim redis.conf
[root@service-monitoring conf]# docker restart redis
redis
[root@service-monitoring conf]#

redis.conf空的，写入两条配置：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_06

此时本地客户端果然就连接失败咯：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_docker_07

填充密码：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_08

立马又正常咯：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_09

8 历史更改

A = add

C = change

D=delete

[root@service-monitoring ~]# docker diff redis
C /root
A /root/.bash_history
A /root/.rediscli_history
C /etc
A /etc/redis
A /etc/redis/redis.conf
[root@service-monitoring ~]#

做了这么多更新，能否将当前快照记录下来呢？当然！

[root@service-monitoring ~]# docker commit -a JavaEdge -m "init new another redis" redis redis:myRedissha256:3c83dc8d500b7d76d681cf34be344694bc4ae914ac1f450a91f5c54384bb8ba0
[root@service-monitoring ~]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED          SIZE
redis         myRedis         3c83dc8d500b   25 seconds ago   113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago       569MB
redis         6.2.7           4b1123a829a1   4 months ago     113MB
hello-world   latest          feb5d9fea6a5   19 months ago    13.3kB
[root@service-monitoring ~]#

假如我现在重复执行一遍：

[root@service-monitoring ~]# docker commit -a JavaEdge -m "init new another redis" redis redis:myRedissha256:9a91ea9de0d3d62b382d85c16c80de591d5624c6710e74fec3464ebf97ff644f
[root@service-monitoring ~]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED          SIZE
redis         myRedis         9a91ea9de0d3   17 seconds ago   113MB
<none>        <none>          3c83dc8d500b   2 minutes ago    113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago       569MB
redis         6.2.7           4b1123a829a1   4 months ago     113MB
hello-world   latest          feb5d9fea6a5   19 months ago    13.3kB
[root@service-monitoring ~]#

可见，产生了游离镜像，移除它们

[root@service-monitoring ~]# docker image prune
WARNING! This will remove all dangling images.
Are you sure you want to continue? [y/N] y
Deleted Images:
deleted: sha256:3c83dc8d500b7d76d681cf34be344694bc4ae914ac1f450a91f5c54384bb8ba0

Total reclaimed space: 0B
[root@service-monitoring ~]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
redis         myRedis         9a91ea9de0d3   2 minutes ago   113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago      569MB
redis         6.2.7           4b1123a829a1   4 months ago    113MB
hello-world   latest          feb5d9fea6a5   19 months ago   13.3kB
[root@service-monitoring ~]#

9 tag更改

[root@service-monitoring ~]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
redis         myRedis         9a91ea9de0d3   2 minutes ago   113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago      569MB
redis         6.2.7           4b1123a829a1   4 months ago    113MB
hello-world   latest          feb5d9fea6a5   19 months ago   13.3kB
[root@service-monitoring ~]# docker tag redis:myRedis redis:myredis-1.0
[root@service-monitoring ~]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
redis         myRedis         9a91ea9de0d3   4 minutes ago   113MB
redis         myredis-1.0     9a91ea9de0d3   4 minutes ago   113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago      569MB
redis         6.2.7           4b1123a829a1   4 months ago    113MB
hello-world   latest          feb5d9fea6a5   19 months ago   13.3kB
[root@service-monitoring ~]#

其实就相当于新增了一个引用，但具体对象所占内存不变。

docker run -p 8379:6379 --name redisABC \
-d redis:myredis-1.0
8f9bfe41f9fa5ebb8a40cba4c4532ca4e8cbb353e144c7a85d8fe4f4d75f12d7


[root@service-monitoring ~]# docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED          STATUS          PORTS                                                  NAMES
8f9bfe41f9fa   redis:myredis-1.0     "docker-entrypoint.s…"   24 seconds ago   Up 23 seconds   0.0.0.0:8379->6379/tcp, :::8379->6379/tcp              redisABC
5bce12836608   redis:6.2.7           "docker-entrypoint.s…"   5 hours ago      Up 4 hours      0.0.0.0:6379->6379/tcp, :::6379->6379/tcp              redis
e380fdc23c78   mysql:5.7.42-oracle   "docker-entrypoint.s…"   18 hours ago     Up 18 hours     0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql
[root@service-monitoring ~]#

客户端连接也是完全没问题

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_10

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_11

注意到此时我们对复制出的镜像执行：

[root@service-monitoring ~]# docker diff redisABC
[root@service-monitoring ~]#

输出为空，因为我们本质上并没有创建新的 redis.conf 文件或者 etc 目录

10 共享镜像

10.1 export/import

[root@service-monitoring ~]# docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED        STATUS        PORTS                                                  NAMES
8f9bfe41f9fa   redis:myredis-1.0     "docker-entrypoint.s…"   2 hours ago    Up 2 hours    0.0.0.0:8379->6379/tcp, :::8379->6379/tcp              redisABC
5bce12836608   redis:6.2.7           "docker-entrypoint.s…"   6 hours ago    Up 6 hours    0.0.0.0:6379->6379/tcp, :::6379->6379/tcp              redis
e380fdc23c78   mysql:5.7.42-oracle   "docker-entrypoint.s…"   20 hours ago   Up 20 hours   0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql
[root@service-monitoring ~]# docker export -o myRedis.tar redisABC
[root@service-monitoring ~]# ll
total 111548
-rw-r--r-- 1 root root   1634304 Apr  2 16:28 loki-linux-amd64.zip
-rw------- 1 root root 112590336 Apr 27 20:08 myRedis.tar
-rw------- 1 root root         0 Apr 10 10:47 nohup.out
[root@service-monitoring ~]#

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_12

就可以将这个 tar 包通过 scp 传输到其他服务器上了。

[root@service-monitoring redis6]# scp /home/redis6/myRedis.tar root@目标机器ip:/home/redis6/
root@目标机器ip's password: 
myRedis.tar                                                                                                       100%  107MB   2.4MB/s   00:45    B
[root@service-monitoring redis6]#

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_13

到目标机器看下，他来了他来了！

[root@icv-monitor-platform-dev redis6]# ll
total 109956
-rw------- 1 root root 112590336 Apr 27 20:20 myRedis.tar
[root@icv-monitor-platform-dev redis6]#

在目标机器可继续执行 docker import

[root@icv-monitor-platform-dev redis6]# docker import myRedis.tar redis:myRedis-another
sha256:33d956d31be6bd9434f80cd9ad52bbcf5ab9e068c30936810b09f1a06e815342
[root@icv-monitor-platform-dev redis6]# docker images
REPOSITORY    TAG               IMAGE ID       CREATED          SIZE
redis         myRedis-another   33d956d31be6   46 seconds ago   109MB
[root@service-monitoring redis6]#

想直接运行它？docker run 是无法启动的！必须使用源启动参数，这谁能天天记得启动脚本啊？要求也太高了吧！而且若源镜像已经被删了，目标镜像也无法启动！太恶心了，干脆忘了这导出导入的命令吧！

那怎么实现跨服务器呢？换个好用的命令实现！先删除该镜像：

[root@service-monitoring redis6]# docker images
REPOSITORY    TAG               IMAGE ID       CREATED          SIZE
redis         myRedis-another   33d956d31be6   46 seconds ago   109MB
redis         myRedis           9a91ea9de0d3   2 hours ago      113MB
redis         myredis-1.0       9a91ea9de0d3   2 hours ago      113MB
mysql         5.7.42-oracle     dd6675b5cfea   9 days ago       569MB
redis         6.2.7             4b1123a829a1   4 months ago     113MB
hello-world   latest            feb5d9fea6a5   19 months ago    13.3kB
[root@service-monitoring redis6]# docker rmi 33d956d31be6
Untagged: redis:myRedis-another
Deleted: sha256:33d956d31be6bd9434f80cd9ad52bbcf5ab9e068c30936810b09f1a06e815342
Deleted: sha256:f961cdcaa8bba925086da29e930d27d98982775e56486ef1d7086f903c3934df
[root@service-monitoring redis6]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
redis         myRedis         9a91ea9de0d3   2 hours ago     113MB
redis         myredis-1.0     9a91ea9de0d3   2 hours ago     113MB
mysql         5.7.42-oracle   dd6675b5cfea   9 days ago      569MB
redis         6.2.7           4b1123a829a1   4 months ago    113MB
hello-world   latest          feb5d9fea6a5   19 months ago   13.3kB

[root@service-monitoring redis6]# docker rmi feb5d9fea6a5
Error response from daemon: conflict: unable to delete feb5d9fea6a5 (must be forced) - image is being used by stopped container 60180275418c

这个错误表明删除镜像时存在容器仍在使用该镜像，需要先停止并删除这些容器才能成功删除对应的镜像。可按照以下步骤操作：

查看正在运行的容器和他们使用的镜像，docker ps，在输出信息中看到CONTAINER ID和IMAGE等字段。
停止容器，命令为docker stop <container_id>，其中<container_id>为具体的容器ID，如果有多个容器，需要逐一停止它们
删除容器，命令为docker rm <container_id>，其中<container_id>为具体的容器ID
最后，尝试删除镜像docker rmi <image_id>

如果不希望手动逐一停止和删除容器，可以使用docker stop $(docker ps -a -q)和docker rm $(docker ps -a -q)来批量停止和删除所有容器。如果确定要强制删除被容器引用的镜像，可以加上-f选项，命令为docker rmi -f <image_id>。

10.2 save/load 独立网络环境使用

# 注意这里没有指定 tag，会将所有 redis 迁移
[root@service-monitoring redis6]# docker save -o myRedis-new.tar redis
[root@service-monitoring redis6]# ll
total 113676
drwxr-xr-x 2 root    root      4096 Apr 27 14:22 conf
drwxr-xr-x 2 polkitd root      4096 Apr 27 14:23 data
-rw------- 1 root    root 116395520 Apr 27 21:26 myRedis-new.tar
[root@service-monitoring redis6]#

[root@service-monitoring redis6]#  scp /home/redis6/myRedis-new.tar root@目标机器ip:/home/redis6/
root@目标机器ip's password: 
myRedis.tar                                                                                                       100%  107MB   2.4MB/s   00:45    B
[root@service-monitoring redis6]#

[root@icv-monitor-platform-dev redis6]# docker load -i myRedis-new.tar  b5ebffba54d3: Loading layer [==================================================>]     84MB/84MB    c191d50afdbb: Loading layer [==================================================>]  338.4kB/338.4kB
f7c2005f3c1e: Loading layer [==================================================>]  4.165MB/4.165MB
e53fdc658ef8: Loading layer [==================================================>]  27.83MB/27.83MB
be0cee722bb2: Loading layer [==================================================>]  2.048kB/2.048kB
dd104008a3b7: Loading layer [==================================================>]  4.096kB/4.096kB
Loaded image: redis:6.2.7
5d52cb8d663b: Loading layer [==================================================>]  5.632kB/5.632kB
Loaded image: redis:myRedis
Loaded image: redis:myredis-1.0
[root@icv-monitor-platform-dev redis6]# docker images
REPOSITORY    TAG           IMAGE ID       CREATED         SIZE
redis         myRedis       9a91ea9de0d3   3 hours ago     113MB
redis         myredis-1.0   9a91ea9de0d3   3 hours ago     113MB
redis         6.2.7         4b1123a829a1   4 months ago    113MB
hello-world   latest        feb5d9fea6a5   19 months ago   13.3kB
[root@icv-monitor-platform-dev redis6]#

可见，这是将所有 redis tag都搞过来了，所以迁移时，最好指定 tag。现在迁移过来3 个image 了，随机挑一个来启动它：

[root@icv-monitor-platform-dev redis6]# docker run -P --name redisABC -d redis:myredis-1.0
28888809ef748666e72248a743c711c38efc3f0c441ac594962bb84756f1c69a
[root@icv-monitor-platform-dev redis6]# docker ps
CONTAINER ID   IMAGE               COMMAND                  CREATED          STATUS          PORTS                                         NAMES
28888809ef74   redis:myredis-1.0   "docker-entrypoint.s…"   20 seconds ago   Up 19 seconds   0.0.0.0:32768->6379/tcp, :::32768->6379/tcp   redisABC
[root@icv-monitor-platform-dev redis6]#

10.3 Docker Hub push/pull

点击 create repository：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_redis_14

填写 name、description，最后点击 create：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_docker_15

看到仓库：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_16

准备 push 的镜像：

[root@service-monitoring redis6]# docker images
REPOSITORY    TAG             IMAGE ID       CREATED         SIZE
redis         myRedis         9a91ea9de0d3   4 hours ago     113MB
[root@service-monitoring redis6]# docker tag redis:myRedis 13236519712/java-redis:myRedis-v1.0
[root@service-monitoring redis6]# docker images
REPOSITORY               TAG             IMAGE ID       CREATED         SIZE
13236519712/java-redis   myRedis-v1.0    9a91ea9de0d3   4 hours ago     113MB
redis                    myRedis         9a91ea9de0d3   4 hours ago     113MB
[root@service-monitoring redis6]# docker push 13236519712/java-redis:myRedis-v1.0
The push refers to repository [docker.io/13236519712/java-redis]
5d52cb8d663b: Preparing 
dd104008a3b7: Preparing 
be0cee722bb2: Preparing 
e53fdc658ef8: Preparing 
f7c2005f3c1e: Preparing 
c191d50afdbb: Waiting 
b5ebffba54d3: Waiting 
denied: requested access to the resource is denied
[root@service-monitoring redis6]#

需要先登录哦：

[root@service-monitoring redis6]# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: 13236519712
Password: 
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
[root@service-monitoring redis6]#

密码会被加密保存在本地哦：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_docker_17

重新 push：

[root@service-monitoring redis6]# docker push 13236519712/java-redis:myRedis-v1.0
The push refers to repository [docker.io/13236519712/java-redis]
5d52cb8d663b: Pushed 
dd104008a3b7: Mounted from library/redis 
be0cee722bb2: Mounted from library/redis 
e53fdc658ef8: Mounted from library/redis 
f7c2005f3c1e: Mounted from library/redis 
c191d50afdbb: Mounted from library/redis 
b5ebffba54d3: Mounted from library/redis 
myRedis-v1.0: digest: sha256:8fba1134ecd7cc32f8dc954793354d1beb17764924644c8825278359252859b2 size: 1780
[root@service-monitoring redis6]#

hub 中可见已上传的内容：

【教程分享】一键部署Redis，轻松搞定Docker安装和配置！_mysql_18

最后登出：

docker logout

那么，此时，其他开发者就能直接拉取了。

[root@service-monitoring redis6]# docker pull 13236519712/java-redis:myRedis-v1.0
myRedis-v1.0: Pulling from 13236519712/java-redis
Digest: sha256:8fba1134ecd7cc32f8dc954793354d1beb17764924644c8825278359252859b2
Status: Image is up to date for 13236519712/java-redis:myRedis-v1.0
docker.io/13236519712/java-redis:myRedis-v1.0
[root@service-monitoring redis6]#