How to install a docker environment in a centOS7 system

How to install a docker environment in a centOS7 system? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

First, prepare a linux system.

Docker needs a 64-bit system, and the version of the kernel must be greater than 3.10. You can use commands to check whether the requirements are met:

Once the conditions have been met, the following formal installation steps begin:

1. Update yum:

Sudo yum update

If prompted during the update, enter "y":

2. After the update is completed, execute the docker installation script:

Curl-sSL https://get.docker.com/ | sh

3. Start the docker service:

4. Test whether the installation of docker is complete:

5. Check the docker version:

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