“CentOS 7下 Docker安装”

前言

正文

1、安装CentOS 7

下载

Ali-OSM

http://mirrors.aliyun.com

安装 略

确认内核版本

uname -r

3.10.0-514.16.1.el7.x86_64

需大于3.10

2、获取docker国内加速连接

这里使用阿里的

https://cr.console.aliyun.com/#/accelerator

3、添加yum源

sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF

4、安装

sudo yum install docker-engine

5、使用加速连接

新建 docker 文件

echo DOCKER_OPTS=”-H unix:///var/run/docker.sock -H 0.0.0.0:2375 –registry-mirror=国内仓库地址” >> /etc/sysconfig/docker

修改 docker.service 添加 DOCKER_OPTS

vim /lib/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target

[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker

EnvironmentFile=-/etc/sysconfig/docker

ExecStart=/usr/bin/dockerd $DOCKER_OPTS
...

6、启动

sudo systemctl start docker

查看 是否启动成功

ps -ef | grep docker

看见参数 则启动成功

尾巴

接下来 开始愉快的 Docker 之旅吧！

参考

https://dcos.io/docs/1.7/administration/installing/custom/system-requirements/install-docker-centos/

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