tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Centos7 安装docker ce相关的知识，希望对你有一定的参考价值。
一. 安装docker
1.升级rpm包
2. 通过命令设置Docker CE 资源库:
yum install -y yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
3.生成缓存
4.查看可下载版本
yum list docker-ce --showduplicates | sort -r
4.安装并启动docker
二.设置镜像下载地址
在/etc/docker/daemon.json 内添加
{
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]
}
三、开放管理端口映射
1.编辑 /lib/systemd/system/docker.service
ExecStart=/usr/bin/dockerd
替换为 下面
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock -H tcp://0.0.0.0:7654
2.将管理地址变量写进profile
echo ‘export DOCKER_HOST=tcp://0.0.0.0:2375‘ >> /etc/profile
四.重启服务
systemctl daemon-reload && service restart docker
五、测试docker
若成功：
Unable to find image ‘hello-world:latest‘ locally
latest: Pulling from library/hello-world
Digest: sha256:f5233545e43561214ca4891fd1157e1c3c563316ed8e237750d59bde73361e77
Status: Downloaded newer image for hello-world:latest
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/engine/userguide/
以上是关于Centos7 安装docker ce的主要内容，如果未能解决你的问题，请参考以下文章
CentOS7 Docker-ce 安装(阿里源)
centos7安装docker-ce
CentOS7中Docker-ce的卸载和安装
Centos7 安装docker ce
centos7.6在线yum安装docker-ce
centos7 安装docker-ce ，最新版本docker