Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about how to upgrade Docker to the latest version. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

1. View system requirements

Docker requires the kernel version of the CentOS system to be higher than 3.10. Check the kernel version of CentOS.

Uname-a2, delete the old version of yum remove docker docker-common docker-selinux docker-engine3, install the required software packages

Yum-util provides yum-config-manager functions, and the other two are dependent on the devicemapper driver.

Sudo yum install-y yum-utils device-mapper-persistent-data lvm24, set Docker yum source sudo yum-config-manager-- add-repo https://download.docker.com/linux/centos/docker-ce.repo5, view all docker versions in all repositories

You can view all docker versions in all repositories and select a specific version to install.

Yum list docker-ce-- showduplicates | sort-R6. Install dockersudo yum install docker-ce

Since only stable repository is enabled by default in repo, the latest stable 18.03.0.ce-1.el7.centos is installed here.

If you are installing a specific version:

Sudo yum install docker-ce-18.06.1.ce7, startup

Set to boot

Systemctl enable docker

Start

Systemctl start docker

View startup status

Systemctl status docker

View version

Docker version

This is how the Docker shared by the editor has been upgraded to the latest version. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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