Use yum to install docker-compose

1. Add EPEL source
   Run the following command in Shell to install EPEL source:
   yum install -y epel-release
2. Install python-pip
   Run the following command in Shell to install the Python-pip package:
   #Pay attention to the python3 soft link
   yum install -y python-pip
   yum install -y python3-pip#python3install pip3!!!
3. Install docker-compose
   Run the following command in Shell to install docker-compose through pip:
   pip3 install docker-compose --default-timeout=100
   4. Note
   if prompted during installation

Could not find a version that satisfies the requirement docker-compose (from versions:)
No matching distribution found for docker-compose
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the'pip install --upgrade pip' command.
Just execute the command pip install --upgrade pip to update the pip version
5. Check the pip version
pip3 -V
6. Verify that the installation is successful
docker-compose -version
shows docker-compose version 1.18.0, build 8dd22a9 Indicates successful installation