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Installing Docker

  1. Decompress the Docker installation package.
    tar zxf docker-19.03.10.tgz
  2. Move the decompressed files to /usr/bin.
    cp docker/* /usr/bin
  3. Edit the docker.service file.
    1. Open the docker.service file.
      vim /usr/lib/systemd/system/docker.service
    2. Add the following content:
      [Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
    3. Press Esc, type :wq!, and press Enter to save the settings and exit.
  4. Start the Docker service process.
    1
    		 
    systemctl start docker
  5. Check the installation.
    docker version

    As shown in the following figure, if Client and Server information is displayed, the installation is successful.