阿里云centos安装docker以及docker仓库加速
安装docker社区版
1.更新yum包至最新
yum -y update
2.卸载已经存在的旧版docker
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
有可能返回下面的结果，这是OK的，说明你之前没有安装旧版的docker，直接进入3
No Match for argument: docker
No Match for argument: docker-client
No Match for argument: docker-client-latest
No Match for argument: docker-common
No Match for argument: docker-latest
No Match for argument: docker-latest-logrotate
No Match for argument: docker-logrotate
No Match for argument: docker-engine
No Packages marked for removal
3.安装docker社区版
# 添加阿里云docker镜像仓库
cd /etc/yum.repos.d && wget http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# 更新yum配置
yum makecache fast
# 安装docker-ce
yum -y install docker-ce
# 验证安装是否成功(有client和service两部分表示docker安装启动都成功了)
docker version
Client: Docker Engine - Community
Version: 19.03.5
API version: 1.40
Go version: go1.12.12
Git commit: 633a0ea
Built: Wed Nov 13 07:25:41 2019
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.5
API version: 1.40 (minimum version 1.12)
Go version: go1.12.12
Git commit: 633a0ea
Built: Wed Nov 13 07:24:18 2019
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.10
GitCommit: b34a5c8af56e510852c35414db4c1f4fa6172339
runc:
Version: 1.0.0-rc8+dev
GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657
docker-init:
Version: 0.18.0
GitCommit: fec3683
4.启动docker 并设置开机启动
# 启动
systemctl start docker
# 添加开机启动
systemctl enable docker
docker仓库加速
由于某些原因docker hub的速度感人，所以我们需要一个国内的仓库镜像，这里使用阿里云的镜像仓库
仓库列表：
# 修改配置文件
vim /usr/lib/systemd/system/docker.service
# 在dockerd后面加参数
ExecStart=/usr/bin/dockerd --registry-mirror=https://3laho3y3.mirror.aliyuncs.com/
# 重新加载配置
systemctl daemon-reload
# 重启docker
systemctl docker restart
