搭建docker镜像

1、安装docker

# 卸载原来的
sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-selinux \
                  docker-engine-selinux \
                  docker-engine


# 安装依赖
sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2


# 添加镜像源
sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

# 安装docker
 sudo yum install docker-ce

2、搭建环境

docker search centos  # 查找centos的docker源
docker pull centos  # 拉取centos
docker run -itd centos /bin/bash  # 后台启动docker
docker exec -it 3fff39b4c357 /bin/bash  # 进入docker

 3、其他命令

docker ps -a -q|xargs docker rm  # 删除docker
docker build -t=centos:v2 . # 打包编译新的image

docker tag IMAGEID(镜像id) REPOSITORY:TAG（仓库：标签）  # 重命名镜像

 4、docker更改成国内源

#vi /etc/docker/daemon.json
{
    "registry-mirrors":["https://registry.docker-cn.com"]
}

systemctl restart docker