目录
一、安装 Docker Engine
1.更新
bash
yum update2.添加YUM源
bash
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
EOF3.安装 Docker Engine
https://docs.docker.com/engine/installation/linux/centos/
bash
yum install -y docker-engine4.开启服务
bash
systemctl enable docker.service5.启动
bash
systemctl start docker6.docker 用户组
docker 运行需要ROOT权限，其他用户运行docker命令需要使用sudo。因此需要创建非root用户添加到docker组
bash
groupadd docker
usermod -aG docker dmfy二、安装 docker-compose
via https://docs.docker.com/compose/compose-file/
国外主机
bash
curl -L https://github.com/docker/compose/releases/download/1.9.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose && \
chmod +x /usr/bin/docker-compose国内主机
bash
curl -L https://get.daocloud.io/docker/compose/releases/download/1.9.0/docker-compose-`uname -s`-`uname -m` > /usr/bin/docker-compose && \
chmod +x /usr/bin/docker-compose查看版本
bash
docker-compose --version三、配置 Docker 加速器
阿里云加速（推荐）
bash
mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://rvg03xpp.mirror.aliyuncs.com"]
}
EOF重启
bash
systemctl daemon-reload
systemctl restart dockerDaocloud 加速
bash
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://56c3a7e7.m.daocloud.io
systemctl restart docker四、配置 docker-ssh 工具
https://github.com/phusion/baseimage-docker
bash
curl --fail -L -O https://github.com/phusion/baseimage-docker/archive/master.tar.gz && \
tar xzf master.tar.gz && \
sudo ./baseimage-docker-master/install-tools.sh工具二：docker-ssh
https://github.com/jpetazzo/nsenter/blob/master/docker-enter
下载配置文件：
bash
vim ~/.bashrc
# Source docker-ssh
if [ -f ~/.bashrc_docker ]; then
. ~/.bashrc_docker
fi五、volume 插件
六、容器备份
提交镜像
bash
docker commit -p 35d86f745776 dmfy-mariadb-20170321保存镜像
bash
docker save dmfy-mariadb-20170321 > ~/dmfy-mariadb-20170321载入镜像
bash
docker load -i ~/dmfy-mariadb-20170321方法二：
导出容器
bash
docker export 70fbab60962d > ~/seafile-container-20160811.tar导入容器为一个镜像
bash
cat ~/seafile-container-20160811.tar | docker import - seafile:latest