CentO7.9安装Docker
文章目录
- CentO7.9安装Docker
-
- 删除旧版本的Docker
- 安装Docker仓库
- 安装Docker
-
- 安装最新版本
- 安装指定版本
- Docker安装个NGINX
-
- 查看Docker镜像
- 运行
- 查看Docker进程
- 查看启动端口
- 停止Docker容器
CentO7.9安装Docker
删除旧版本的Docker
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
这个可能是匹配不到的，来个狠一点的
sudo yum remove docker*
带有Docker的全部删掉
安装Docker仓库
sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
安装Docker
安装最新版本
安装Docker最新版，不带版本的默认最新版本
sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
安装指定版本
查找docker-ce的版本
[root@WDQCVM ~]# yum list docker-ce --showduplicates | sort -r
* updates: mirrors.aliyun.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
* extras: mirrors.aliyun.com
docker-ce.x86_64 3:24.0.5-1.el7 docker-ce-stable
docker-ce.x86_64 3:24.0.4-1.el7 docker-ce-stable
docker-ce.x86_64 3:24.0.3-1.el7 docker-ce-stable
docker-ce.x86_64 3:24.0.2-1.el7 docker-ce-stable
docker-ce.x86_64 3:24.0.1-1.el7 docker-ce-stable
查找docker-ce-cli的版本
[root@WDQCVM ~]# yum list docker-ce-cli --showduplicates | sort -r
* updates: mirrors.aliyun.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
Installed Packages
* extras: mirrors.aliyun.com
docker-ce-cli.x86_64 1:24.0.5-1.el7 docker-ce-stable
docker-ce-cli.x86_64 1:24.0.5-1.el7 @docker-ce-stable
docker-ce-cli.x86_64 1:24.0.4-1.el7 docker-ce-stable
docker-ce-cli.x86_64 1:24.0.3-1.el7 docker-ce-stable
docker-ce-cli.x86_64 1:24.0.2-1.el7 docker-ce-stable
docker-ce-cli.x86_64 1:24.0.1-1.el7 docker-ce-stable
将参数替换即可
通用示例
sudo yum install docker-ce- docker-ce-cli- containerd.io docker-buildx-plugin docker-compose-plugin
指定版本示例
sudo yum install docker-ce-24.0.4-1.el7 docker-ce-cli-24.0.4-1.el7 containerd.io docker-buildx-plugin docker-compose-plugin
Centos7.9版本安装Docker指定版本时，安装了好多次这么设置版本号才成功，在软件包名称和版本号之间不需要添加数字和冒号，但官网给出的实例是带有:的，费解。
校验是否成功
[root@WDQCVM ~]# sudo systemctl start docker
[root@WDQCVM ~]# sudo docker --version
Docker version 24.0.4, build 3713ee1
[root@WDQCVM ~]#
有以下这些就可说明成功了
[root@WDQCVM ~]# sudo docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
[root@WDQCVM ~]#
Docker安装个NGINX
[root@WDQCVM ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
52d2b7f179e3: Pull complete
fd9f026c6310: Pull complete
055fa98b4363: Pull complete
96576293dd29: Pull complete
a7c4092be904: Pull complete
e3b6889c8954: Pull complete
da761d9a302b: Pull complete
Digest: sha256:13d22ec63300e16014d4a42aed735207a8b33c223cff19627dd3042e5a10a3a0
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest
[root@WDQCVM ~]#
查看Docker镜像
[root@WDQCVM ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest eea7b3dcba7e 27 hours ago 187MB
hello-world latest 9c7a54a9a43c 3 months ago 13.3kB
运行
[root@WDQCVM ~]# docker run --name nginx -p 8080:80 -d nginx
d1b23e05201a232eb57c2458423b88cee5dc9a27464bb680978676dcd4dd741a
[root@WDQCVM ~]#
查看Docker进程
[root@WDQCVM ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d1b23e05201a nginx "/docker-entrypoint.…" 7 seconds ago Up 4 seconds 0.0.0.0:8080->80/tcp, :::8080->80/tcp nginx
[root@WDQCVM ~]#
查看启动端口
[root@WDQCVM ~]# ss -ltnp |grep 8080
LISTEN 0 128 *:8080 *:* users:(("docker-proxy",pid=11654,fd=4))
LISTEN 0 128 [::]:8080 [::]:* users:(("docker-proxy",pid=11661,fd=4))
[root@WDQCVM ~]#
停止Docker容器
[root@WDQCVM ~]# docker stop nginx
nginx
[root@WDQCVM ~]#
[root@WDQCVM ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@WDQCVM ~]#
Docker官网