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阿里云服务器上配置Docker 以及常用命令讲解

哈基米和喵内噶 2024-08-14 15:37:03 阅读 90

目录

一、认识docer二、在阿里云服务器上配置Docker三、底层原理4、常用命令（1）Docker中常见镜像命令（2）Docker中常见容器命令（3）日志查看命令（4）进入容器的命令与拷贝命令

小结四、部署容器五、dockerfile命令DockerFile是什么常见命令自制一个centos镜像

一、认识docer

传统虚拟机方式

拥有完整内核和相应的库才能安装需要的app，模拟了一台完整的电脑

在这里插入图片描述

缺点：

资源占用多冗余步骤多启动慢资源公用，某个设置出问题可能导致多个应用出问题

docer容器化技术

在这里插入图片描述

优点：

容器内的应用直接运行在宿主机的内核，容器没有自己的内核每个容器内有一个属于自己的文件系统互不影响，容器之间相互隔离互不影响打包镜像发布测试，一键运行更便捷的升级和扩容容器化之后，开发和测试环境高度一致更高效的计算资源利用，Docer是内核级别的虚拟化，可以在一个物理机上运行多个容器实例，服务器性能可以压榨到极致

在这里插入图片描述

镜像（image）容器（container）仓库（repository）

流程：客户端启动docer里的一个容器，容器要从服务器上下载

二、在阿里云服务器上配置Docker

需要购买一个阿里云服务器，活动99一年的就够了，需要分配外网ipv4地址

步骤（参考docker官网文档）

1、卸载旧的docker

<code>sudo yum remove docker \

docker-client \

docker-client-latest \

docker-common \

docker-latest \

docker-latest-logrotate\

docker-logrotate \

docker-engine

2、添加仓库

sudo yum install -y yum-utils

3、设置镜像仓库为阿里云国内源

sudo yum-config-manager --add-repo \

http://mirrors.aliyun.com/dockerce/linux/centos/docker-ce.repo

4、更新索引

yum makecache fast

5、安装docker

sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

6、启动docker

sudo systemctl start docker

7、判断是否启动成功

docker version

sudo docker run hello-world

hello-word程序的执行流程

在这里插入图片描述

在这里插入图片描述

8、配置阿里云镜像加速

在这里插入图片描述

<code>sudo mkdir -p /etc/docker

sudo tee /etc/docker/daemon.json <<-'EOF'

{

"registry-mirrors": ["https://rpu0hzw5.mirror.aliyuncs.com"]

}

EOFEO

sudo systemctl daemon-reload

sudo systemctl restart docker

三、底层原理

在这里插入图片描述

Docker是一个Client-Server结构的系统，Docker的守护进程运行在主机上，通过Socket从客户端访问，DockerServer接受到Docker-Client的指令，就会执行这个命令

Docker为什么比VM快

Docker有着比虚拟机更少的抽象层Docker利用的是宿主机的内核,vm需要的是Guest OS（Guest Operating System 指在虚拟化环境中运行的操作系统）

在这里插入图片描述

所以，新建一个容器的时候，docker不需要和虚拟机一样重新加载一个操作系统的内核，直接利用宿主机的操作系统内核

在这里插入图片描述

4、常用命令

（1）Docker中常见镜像命令

查看帮助文档 docker [命令] --help

<code>[root@aliyun_docker ~]# docker top --help

Usage: docker top CONTAINER [ps OPTIONS]

Display the running processes of a container

Aliases:

docker container top, docker top

搜索镜像

docker search

[root@iZ2vc3j8qdus28heb8myw2Z ~]# docker search mysql

NAME DESCRIPTION STARS OFFICIAL

mysql MySQL is a widely used, open-source relation… 15008 [OK]

mariadb MariaDB Server is a high performing open sou… 5722 [OK]

下载镜像

docker pull

[root@iZ2vc3j8qdus28heb8myw2Z ~]# docker pull mysql

Using default tag: latest#如果不写tag默认下载最新版本

latest: Pulling from library/mysql

72a69066d2fe: Pull complete

93619dbc5b36: Pull complete

99da31dd6142: Pull complete

626033c43d70: Pull complete

37d5d7efb64e: Pull complete

ac563158d721: Pull complete

d2ba16033dad: Pull complete

688ba7d5c01a: Pull complete

00e060b6d11d: Pull complete

1c04857f594f: Pull complete

4d7cfa90e6ea: Pull complete

e0431212d27d: Pull complete

Digest: sha256:e9027fe4d91c0153429607251656806cc784e914937271037f7738bd5b8e7709

Status: Downloaded newer image for mysql:latest

docker.io/library/mysql:latest

当下载同应用不同版本只会下载没有的部分，原有的可以公用的部分不会重复下载，节省空间

[root@iZ2vc3j8qdus28heb8myw2Z ~]# docker pull mysql:5.7

5.7: Pulling from library/mysql

72a69066d2fe: Already exists

93619dbc5b36: Already exists

99da31dd6142: Already exists

626033c43d70: Already exists

37d5d7efb64e: Already exists

ac563158d721: Already exists

d2ba16033dad: Already exists

0ceb82207cd7: Pull complete

37f2405cae96: Pull complete

e2482e017e53: Pull complete

70deed891d42: Pull complete

Digest: sha256:f2ad209efe9c67104167fc609cca6973c8422939491c9345270175a300419f94

Status: Downloaded newer image for mysql:5.7

docker.io/library/mysql:5.7

查看所有镜像

docker images

[root@iZ2vc3j8qdus28heb8myw2Z ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

hello-world latest d2c94e258dcb 11 months ago 13.3kB

mysql 5.7 c20987f18b13 2 years ago 448MB

mysql latest 3218b38490ce 2 years ago 516MB

通过IMAGE ID 删除 image，加空格可以删除多个，

dock rmi -f $(docker images -aq)组合命令删除全部容器

[root@iZ2vc3j8qdus28heb8myw2Z ~]# docker rmi -f 3218b38490ce

Untagged: mysql:latest

Untagged: mysql@sha256:e9027fe4d91c0153429607251656806cc784e914937271037f7738bd5b8e7709

Deleted: sha256:3218b38490cec8d31976a40b92e09d61377359eab878db49f025e5d464367f3b

Deleted: sha256:aa81ca46575069829fe1b3c654d9e8feb43b4373932159fe2cad1ac13524a2f5

Deleted: sha256:0558823b9fbe967ea6d7174999be3cc9250b3423036370dc1a6888168cbd224d

Deleted: sha256:a46013db1d31231a0e1bac7eeda5ad4786dea0b1773927b45f92ea352a6d7ff9

Deleted: sha256:af161a47bb22852e9e3caf39f1dcd590b64bb8fae54315f9c2e7dc35b025e4e3

Deleted: sha256:feff1495e6982a7e91edc59b96ea74fd80e03674d92c7ec8a502b417268822ff

[root@iZ2vc3j8qdus28heb8myw2Z ~]#

（2）Docker中常见容器命令

有了镜像才可以创建容器，

新建容器并启动

docker run [可选参数] image

#可选参数说明

–name = “Name” 容器名字,用来区分容器 tomcat01 tomcat02，用来区分容器

-d 后台方式运行（如果要后台运行必须要有一个前台进程，容器启动后发现自己没有提供服务就会立刻停止）

-it 使用交互方式运行，进入容器查看内容

-p 指定容器的端口 -P 8080:8080

-p ip:主机端口:容器端口

-p 主机端口:容落端口 (常用)

-p 容器端口

容器端口

-p 随机指定端口

[root@aliyun_docker ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

hello-world latest d2c94e258dcb 11 months ago 13.3kB

mysql 5.7 c20987f18b13 2 years ago 448MB

centos latest 5d0da3dc9764 2 years ago 231MB

[root@aliyun_docker ~]# docker run -it centos /bin/bash

[root@a790c5209310 /]#

可以发现进入容器后主机名称变了

退出（按三个键CTRL+p+q，退出不关闭）

[root@aliyun_docker ~]# docker run -it centos /bin/bash

[root@b8630535a0c9 /]# [root@aliyun_docker ~]#

[root@aliyun_docker ~]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

b8630535a0c9 centos "/bin/bash" 43 seconds ago Up 43 seconds keen_kepler

[root@b8630535a0c9 /]# exit

查看当前正在运行/运行过的容器（加 -a）

[root@aliyun_docker ~]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

[root@aliyun_docker ~]# docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

a790c5209310 centos "/bin/bash" 3 minutes ago Exited (0) About a minute ago funny_brahmagupta

2321a478186b hello-world "/hello" 4 hours ago Exited (0) 4 hours ago eager_pascal

[root@aliyun_docker ~]#

只显示编号 -q

[root@aliyun_docker ~]# docker ps -aq

a790c5209310

2321a478186b

删除容器

docker rm 容器id#删除指定容器正在运行的不能删除（加-f）

docker rm -f $(docker ps -aq)#删除所有

docker ps -a -q|xargs docker rm #通过管道删除

[root@aliyun_docker ~]# docker rm b8630535a0c9

Error response from daemon: cannot remove container "/keen_kepler": container is running: stop the container before removing or force remove

启动和停止

docker start 容器id#启动容器

docker restart 容器id#重启容器

docker stop 容器id#停止当前正在运行的容器

docker kill 容器id#强制停止当前容器（实例仍然存在）

（3）日志查看命令

写一段shell脚本

[root@aliyun_docker ~]# docker run -d centos /bin/bash -c "while true;do echo xiakucao;sleep 1;done"

22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf

[root@aliyun_docker ~]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

22249409fb3c centos "/bin/bash -c 'while…" 5 seconds ago Up 3 seconds jolly_hodgkin

b8630535a0c9 centos "/bin/bash" 29 minutes ago Up 29 minutes keen_kepler

[root@aliyun_docker ~]#

显示指定行数的日志

[root@aliyun_docker ~]# docker logs -f -t --tail 10 22249409fb3c

2024-04-18T14:15:44.419231635Z xiakucao

2024-04-18T14:15:45.421276341Z xiakucao

2024-04-18T14:15:46.423269443Z xiakucao

2024-04-18T14:15:47.425443716Z xiakucao

2024-04-18T14:15:48.427495542Z xiakucao

2024-04-18T14:15:49.429472406Z xiakucao

2024-04-18T14:15:50.431600097Z xiakucao

2024-04-18T14:15:51.434124367Z xiakucao

2024-04-18T14:15:52.436540492Z xiakucao

2024-04-18T14:15:53.438632432Z xiakucao

2024-04-18T14:15:54.441042791Z xiakucao

2024-04-18T14:15:55.443170520Z xiakucao

2024-04-18T14:15:56.445296720Z xiakucao

2024-04-18T14:15:57.447415752Z xiakucao

2024-04-18T14:15:58.449874664Z xiakucao

2024-04-18T14:15:59.451981852Z xiakucao

^Z

[3]+ Stopped docker logs -f -t --tail 10 22249409fb3c

[root@aliyun_docker ~]#

查看容器中进程信息

[root@aliyun_docker ~]# docker top 22249409fb3c

UID PID PPID C STIME TTY TIME CMD

root 1769 1748 0 22:14 ? 00:00:00 /bin/bash -c while true;do echo xiakucao;sleep 1;done

root 2122 1769 0 22:19 ? 00:00:00 /usr/bin/coreutils --coreutils-prog-shebang=sleep /usr/bin/sleep 1

查看镜像的元数据

docker inspect

可以看到IMAGE ID截取的是部分ID

在这里插入图片描述

<code>[root@aliyun_docker ~]# docker inspect 22249409fb3c

[

{

"Id": "22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf",

"Created": "2024-04-18T14:14:13.991971662Z",

"Path": "/bin/bash",

"Args": [

"-c",

"while true;do echo xiakucao;sleep 1;done"

],

"State": {

"Status": "running",

"Running": true,

"Paused": false,

"Restarting": false,

"OOMKilled": false,

"Dead": false,

"Pid": 1769,

"ExitCode": 0,

"Error": "",

"StartedAt": "2024-04-18T14:14:14.22346875Z",

"FinishedAt": "0001-01-01T00:00:00Z"

},

"Image": "sha256:5d0da3dc976460b72c77d94c8a1ad043720b0416bfc16c52c45d4847e53fadb6",

"ResolvConfPath": "/var/lib/docker/containers/22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf/resolv.conf",

"HostnamePath": "/var/lib/docker/containers/22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf/hostname",

"HostsPath": "/var/lib/docker/containers/22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf/hosts",

"LogPath": "/var/lib/docker/containers/22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf/22249409fb3c95efe4ad51637a6340abb5b5c212183531a4ee261444aef130cf-json.log",

"Name": "/jolly_hodgkin",

"RestartCount": 0,

"Driver": "overlay2",

"Platform": "linux",

"MountLabel": "",

"ProcessLabel": "",

"AppArmorProfile": "",

"ExecIDs": null,

"HostConfig": {

"Binds": null,

"ContainerIDFile": "",

"LogConfig": {

"Type": "json-file",

"Config": { }

},

"NetworkMode": "default",

"PortBindings": { },

"RestartPolicy": {

"Name": "no",

"MaximumRetryCount": 0

},

"AutoRemove": false,

"VolumeDriver": "",

"VolumesFrom": null,

"ConsoleSize": [

31,

102

],

"CapAdd": null,

"CapDrop": null,

"CgroupnsMode": "host",

"Dns": [],

"DnsOptions": [],

"DnsSearch": [],

"ExtraHosts": null,

"GroupAdd": null,

"IpcMode": "private",

"Cgroup": "",

"Links": null,

"OomScoreAdj": 0,

"PidMode": "",

"Privileged": false,

"PublishAllPorts": false,

"ReadonlyRootfs": false,

"SecurityOpt": null,

"UTSMode": "",

"UsernsMode": "",

"ShmSize": 67108864,

"Runtime": "runc",

"Isolation": "",

"CpuShares": 0,

"Memory": 0,

"NanoCpus": 0,

"CgroupParent": "",

"BlkioWeight": 0,

"BlkioWeightDevice": [],

"BlkioDeviceReadBps": [],

"BlkioDeviceWriteBps": [],

"BlkioDeviceReadIOps": [],

"BlkioDeviceWriteIOps": [],

"CpuPeriod": 0,

"CpuQuota": 0,

"CpuRealtimePeriod": 0,

"CpuRealtimeRuntime": 0,

"CpusetCpus": "",

"CpusetMems": "",

"Devices": [],

"DeviceCgroupRules": null,

"DeviceRequests": null,

"MemoryReservation": 0,

"MemorySwap": 0,

"MemorySwappiness": null,

"OomKillDisable": false,

"PidsLimit": null,

"Ulimits": [],

"CpuCount": 0,

"CpuPercent": 0,

"IOMaximumIOps": 0,

"IOMaximumBandwidth": 0,

"MaskedPaths": [

"/proc/asound",

"/proc/acpi",

"/proc/kcore",

"/proc/keys",

"/proc/latency_stats",

"/proc/timer_list",

"/proc/timer_stats",

"/proc/sched_debug",

"/proc/scsi",

"/sys/firmware",

"/sys/devices/virtual/powercap"

],

"ReadonlyPaths": [

"/proc/bus",

"/proc/fs",

"/proc/irq",

"/proc/sys",

"/proc/sysrq-trigger"

]

},

"GraphDriver": {

"Data": {

"LowerDir": "/var/lib/docker/overlay2/46c4ebdbc616cb8d052b73a0b47a03dbef18a7f1d0ad17346a982c658d5660a0-init/diff:/var/lib/docker/overlay2/cfef35f2fd2430f54798e47b3ce3056bbd96fa29637ba2fa8144daa1c925a355/diff",

"MergedDir": "/var/lib/docker/overlay2/46c4ebdbc616cb8d052b73a0b47a03dbef18a7f1d0ad17346a982c658d5660a0/merged",

"UpperDir": "/var/lib/docker/overlay2/46c4ebdbc616cb8d052b73a0b47a03dbef18a7f1d0ad17346a982c658d5660a0/diff",

"WorkDir": "/var/lib/docker/overlay2/46c4ebdbc616cb8d052b73a0b47a03dbef18a7f1d0ad17346a982c658d5660a0/work"

},

"Name": "overlay2"

},

"Mounts": [],

"Config": {

"Hostname": "22249409fb3c",

"Domainname": "",

"User": "",

"AttachStdin": false,

"AttachStdout": false,

"AttachStderr": false,

"Tty": false,

"OpenStdin": false,

"StdinOnce": false,

"Env": [

"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

],

"Cmd": [

"/bin/bash",

"-c",

"while true;do echo xiakucao;sleep 1;done"

],

"Image": "centos",

"Volumes": null,

"WorkingDir": "",

"Entrypoint": null,

"OnBuild": null,

"Labels": {

"org.label-schema.build-date": "20210915",

"org.label-schema.license": "GPLv2",

"org.label-schema.name": "CentOS Base Image",

"org.label-schema.schema-version": "1.0",

"org.label-schema.vendor": "CentOS"

}

},

"NetworkSettings": {

"Bridge": "",

"SandboxID": "b02c97f64a8992dc0f322a5acc0d2871115ff1654e680a06bdb86591659fef10",

"SandboxKey": "/var/run/docker/netns/b02c97f64a89",

"Ports": { },

"HairpinMode": false,

"LinkLocalIPv6Address": "",

"LinkLocalIPv6PrefixLen": 0,

"SecondaryIPAddresses": null,

"SecondaryIPv6Addresses": null,

"EndpointID": "daa0dad6de8bfdaab015d01972c6e0e7ff1518b23d839a9407c81b15c14d3564",

"Gateway": "172.17.0.1",

"GlobalIPv6Address": "",

"GlobalIPv6PrefixLen": 0,

"IPAddress": "172.17.0.3",

"IPPrefixLen": 16,

"IPv6Gateway": "",

"MacAddress": "02:42:ac:11:00:03",

"Networks": {

"bridge": {

"IPAMConfig": null,

"Links": null,

"Aliases": null,

"MacAddress": "02:42:ac:11:00:03",

"NetworkID": "f9a1764ef63ab36cfd232cf326edc32a337b8722c30a9964659b044b0fecf5c4",

"EndpointID": "daa0dad6de8bfdaab015d01972c6e0e7ff1518b23d839a9407c81b15c14d3564",

"Gateway": "172.17.0.1",

"IPAddress": "172.17.0.3",

"IPPrefixLen": 16,

"IPv6Gateway": "",

"GlobalIPv6Address": "",

"GlobalIPv6PrefixLen": 0,

"DriverOpts": null,

"DNSNames": null

}

}

}

}

]

（4）进入容器的命令与拷贝命令

exec进入容器用bash命令，（run是创建并进入，exec仅进入容器）

exec进入容器后会开启一个新的终端，可以在里面进行操作

[root@aliyun_docker ~]# docker exec -it 22249409fb3c /bin/bash

[root@22249409fb3c /]#

attach命令 进入正在执行的终端，不会启动新的进程

[root@aliyun_docker ~]# docker attach 22249409fb3c

xiakucao

xiakucao

xiakucao

xiakucao

从容器内拷贝文件到主机上

只要容器还在，容器内的文件就不会消失

[root@aliyun_docker ~]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

0eb80da8ce30 centos "/bin/bash" About a minute ago Up About a minute agitated_bhaskara

[root@aliyun_docker ~]# docker attach 0eb80da8ce30

[root@0eb80da8ce30 home]# cd /home

[root@0eb80da8ce30 home]# ls

[root@0eb80da8ce30 home]# touch test.java

[root@0eb80da8ce30 home]# exit

exit

[root@aliyun_docker ~]# docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

0eb80da8ce30 centos "/bin/bash" 2 minutes ago Exited (0) 6 seconds ago agitated_bhaskara

[root@aliyun_docker ~]# docer cp 0eb80da8ce30:/home/test.java /home

-bash: docer: command not found

[root@aliyun_docker ~]# docker cp 0eb80da8ce30:/home/test.java /home

Successfully copied 1.54kB to /home

[root@aliyun_docker ~]#

小结

在这里插入图片描述

四、部署容器

部署nginx

-d后台运行

-name 给容器命名

-p 宿主机端口：容器内部端口

<code>[root@aliyun_docker ~]# docker run -d --name nginx01 -p 3389:80 nginx

b42c715ebae889c6d180b18305f523d2abefe33f11685b3e7354ea1fd776b86e

端口原理图

在这里插入图片描述

测试端口

<code>[root@aliyun_docker ~]# curl localhost:3389

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

html { color-scheme: light dark; }

五、dockerfile命令

DockerFile是什么

DockerFile：构建文件，定义了一切的步骤，源代码

DockerImages：通过DockerFile构建生成的镜像，最终发布和运行的产品

Docker容器：容器就是镜像运行起来提供服务器

常见命令

tips:

用ADD命令添加的文件会自动解压

在这里插入图片描述

自制一个centos镜像

scratch是一个特殊的空白镜像，它是Docker官方提供的最小的镜像，不包含任何操作系统或文件系统。它可以作为基础镜像，用于构建定制化的镜像。Docker Hub中大部分镜像都是从这个基础镜像过来的 FROM scratch没然后配置需要的软件和配置来构建

在这里插入图片描述

在这里插入图片描述

创建的镜像版本尽量和宿主机匹配我的云服务器是centos7

<code>FROM centos:7

MAINTAINER xiakucao<1844966859@qq.com>

ENV MYPATH /usr/local

WORKDIR $MYPATH #默认进入根目录

RUN yum -y install vim

RUN yum -y install net-tools

EXPOSE 80

CMD echo $MYPATH

CMD echo "-------end--------"

CMD /bin/bash

#注意有个点

[root@aliyun_docker dockerfile]# vim mydockerfile-centos

[root@aliyun_docker dockerfile]# docker build -f mydockerfile-centos -t mycentos:0.2 .

[+] Building 54.7s (8/8) FINISHED

查看镜像的构建过程

[root@aliyun_docker dockerfile]# docker history 7e0c8c0fb962

IMAGE CREATED CREATED BY SIZE COMMENT

7e0c8c0fb962 3 minutes ago CMD ["/bin/sh" "-c" "/bin/bash"] 0B buildkit.dockerfile.v0

<missing> 3 minutes ago CMD ["/bin/sh" "-c" "echo \"-------end------… 0B buildkit.dockerfile.v0

<missing> 3 minutes ago CMD ["/bin/sh" "-c" "echo $MYPATH"] 0B buildkit.dockerfile.v0

<missing> 3 minutes ago EXPOSE map[80/tcp:{}] 0B buildkit.dockerfile.v0

<missing> 3 minutes ago RUN /bin/sh -c yum -y install net-tools # bu… 212MB buildkit.dockerfile.v0

<missing> 3 minutes ago RUN /bin/sh -c yum -y install vim # buildkit 301MB buildkit.dockerfile.v0

<missing> 4 minutes ago WORKDIR /usr/local 0B buildkit.dockerfile.v0

<missing> 4 minutes ago ENV MYPATH=/usr/local 0B buildkit.dockerfile.v0

<missing> 4 minutes ago MAINTAINER xiakucao<1844966859@qq.com> 0B buildkit.dockerfile.v0

<missing> 2 years ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0B

<missing> 2 years ago /bin/sh -c #(nop) LABEL org.label-schema.sc… 0B

<missing> 2 years ago /bin/sh -c #(nop) ADD file:b3ebbe8bd304723d4… 204MB

[root@aliyun_docker dockerfile]#

学习记录

2024/4/19 p30

https://www.bilibili.com/video/BV1og4y1q7M4

参考链接

阿里云镜像加速

docker官网文档

视频教程b站狂神说java

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