docker 常用命令（二）

查看版本号

> docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: docker-1.13.1-162.git64e9980.el7.centos.x86_64
 Go version:      go1.10.3
 Git commit:      64e9980/1.13.1
 Built:           Wed Jul  1 14:56:42 2020
 OS/Arch:         linux/amd64

Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: docker-1.13.1-162.git64e9980.el7.centos.x86_64
 Go version:      go1.10.3
 Git commit:      64e9980/1.13.1
 Built:           Wed Jul  1 14:56:42 2020
 OS/Arch:         linux/amd64
 Experimental:    false
​

升级

1.卸载旧 docker

• 停止 docker

systemctl stop docker
​

• 卸载软件包

> yum erase docker \
	docker-client \
	docker-client-latest \
	docker-common \
	docker-latest \
	docker-latest-logrotate \
	docker-logrotate \
	docker-selinux \
	docker-engine-selinux \
	docker-engine \
	docker-ce
​

• 再次查看是否删除干净

rpm -qa | grep docker
​

• 删除相关配置文件

find /etc/systemd -name '*docker*' -exec rm -f {} \;
find /etc/systemd -name '*docker*' -exec rm -f {} \;
find /lib/systemd -name '*docker*' -exec rm -f {} \;
rm -rf /var/lib/docker   #删除以前已有的镜像和容器,非必要
rm -rf /var/run/docker
​

2.安装 docker

1. daocloud 源,适用于 Ubuntu，Debian,Centos 等大部分 Linux，会 3 小时同步一次 Docker 官方资源

curl -sSL https://get.daocloud.io/docker | sh
​

2. 阿里源

curl -sSL http://acs-public-mirror.oss-cn-hangzhou.aliyuncs.com/docker-engine/internet| sh
​

• 查看 docker 版本 19.03.12
  

3.安装 Docker Compose

curl -L https://get.daocloud.io/docker/compose/releases/download/1.26.2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
​

• 查看 Docker Compose 版本 1.26.2, build eefe0d3

docker-compose version
​

4.启动 docker 并设置为开机启动

//启动
systemctl start docker
//开机自启动
systemctl enable docker
​