CentOS7 下 Docker 环境安装

* 号步骤可以不用操作

卸载旧版本Docker

sudo yum remove docker \
                docker-client \
                docker-client-latest \
                docker-common \
                docker-latest \
                docker-latest-logrotate \
                docker-logrotate \
                docker-engine

安装Docker CE

安装所需的包。yum-utils提供了yum-config-manager 效用，并device-mapper-persistent-data和lvm2由需要devicemapper存储驱动程序

sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2

使用以下命令设置稳定存储库

sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

安装最新版本的Docker CE和containerd

sudo yum install docker-ce docker-ce-cli containerd.io

启动Docker

sudo systemctl start docker

(*)设置开机自启动

sudo systemctl enable docker

(*)通过运行hello-world 映像验证是否正确安装了Docker CE

docker run hello-world

• 或者运行以下命令查看Docker版本信息

  docker version

  使用阿里云的Docker Hub 加速

  sudo mkdir -p /etc/docker
  sudo tee /etc/docker/daemon.json <<-'EOF'
  {
    "registry-mirrors": ["https://6e0d9uoa.mirror.aliyuncs.com"]
  }
  EOF
  sudo systemctl daemon-reload
  sudo systemctl restart docker

  安装Docker-Compose

  安装python-pip

  sudo yum install python-pip -y

  安装Docker-Compose

  pip install docker-compose

  如果安装出现如下错误

  ImportError: 'module' object has no attribute 'check_specifier'
    ----------------------------------------
  ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output

  使用如下命令升级setuptools，然后在执行安装

  # 升级 setuptools
  pip install --upgrade setuptools
  # 再次执行安装
  pip install docker-compose

  查看是否安装成功

  docker-compose version