Install docker and docker-compose

1. Uninstall the old version of Docker

sudo yum remove docker docker-common docker-selinux docker-engine

2. Execute the following command to install the dependent package

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

3. In view of domestic network problems, it is strongly recommended to use domestic sources to execute the following command to add yum software Source

sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4. Install Docker CE

sudo yum -y install docker-ce

5. Set up Docker CE to boot

sudo systemctl enable docker
sudo systemctl start docker

6. Due to domestic network problems, subsequent pulling of Docker images is very slow and intense. It is recommended to configure domestic image acceleration after installing Docker

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

7. Restart to take effect

sudo systemctl daemon-reload
sudo systemctl restart docker

8.Install docker-compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version

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