preface

Windows10 64-Bit professional version can only use docker Centos installation can refer to, based on the completion of the installation of Centos for today’s Docker installation

Docker learning (I) Environment Ready to install centos7

Environment to prepare

  1. Install the Docker persistence package and yum toolkityum install -y yum-utils device-mapper-persistent-data lvm2
  • Yum -utils a tool kit for simplifying yum installation. Optional
  • Lvm2: Device -mapper- Persistent-data lvm2: Does lvm2 install docker datastory drivers
  1. Modify the image installation source to Ali cloud acceleration, the default is foreign download is slowyum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoYum automatically selects the fastest installation sourceyum makecache fast

Install the docker

Docker-related commands will be covered in more detail in a future article

  • It takes 1-2 minutes to install the open source zonal version of Docker, depending on the speed of the networkyum -y install docker-ce
  • Start the dockerservice docker start
  • Check the Docker version, which is divided into two parts: client information and server informationdocker version
  • Download the Hello-Word imagedocker pull hello-word
  • Run the hello – worddocker run hello-wordIf the following information is displayed, the operation is successful
Hello from Docker!
This message shows that your installation appears to be working correctly.
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Problems encountered

Q: Docker pull hello-word failed

A: Because Docker is connected to A foreign server by default, the download may fail. You can use Aliyun image acceleration agent

Ali Cloud Docker image acceleration

Image acceleration service

The background address of acceleration can be seen only after login. The acceleration address of each user is a different copy-related acceleration script, which can be accelerated by running in centos

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://ki61hxwi.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
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