Set up Docker on Oracle Linux (7.x) with Vagrant

Purpose

I want to start Oracle Linux (7.x) with Vagrant, and then install and start Docker. (Host is Windows 10 Home Edition. Vagrant and VirtualBox are already set up)

Find out information about Vagrant Box

Check at the following site. Check the URL of the Oracle Linux Vagrant box.

Oracle Linux Vagrant boxes https://yum.oracle.com/boxes/

This time it is assumed to be Oracle Linux 7.x https://oracle.github.io/vagrant-projects/boxes/oraclelinux/7.json To use.

Find out Docker installation information on Oracle Linux

In Oracle Linux Docker, there is a translation in Docker-docs-ja, but it is 1.13.RC, and the setting of Yum repository is different now, so this part is not helpful. https://docs.docker.jp/engine/installation/linux/oracle.html

If you look at the installation manual in the Docker manual, you can see that Oracle Linux is missing from the Linux distribution chapter. https://docs.docker.com/engine/install/

The following blog mentions the setting of Oracle yum repository of Oracle Linux.

A Simple Guide to docker installation on Oracle Linux 7.5 [Updated Oct 2019] https://blogs.oracle.com/blogbypuneeth/a-simple-guide-to-docker-installation-on-oracle-linux-75

As of October 2020, "ol7_latest" and "ol7_addons" were enabled by default as the settings of the yum repository of Oracle Linux acquired in the above Box, and no additional setting changes were necessary. There was no problem even if "ol7_UEKR4" in the above blog was left disabled.

Vagrantfile

Vagrantfile example

Vagrant.configure("2") do |config|
  config.vm.box = "oraclelinux/7"
  config.vm.box_url = "https://oracle.github.io/vagrant-projects/boxes/oraclelinux/7.json"
  config.vm.network :forwarded_port, id: "ssh", guest: 22, host: 2210
  config.vm.provider "virtualbox" do |vb|
   vb.memory = "8196"
  end
  config.vm.provision "shell", inline: <<-SHELL
i=1; while [ $i -le 10 ]; do echo $i;yum -y --disablerepo=* --enablerepo=ol7_addons,ol7_latest  install docker-engine;if [ $? -eq 0 ];then break;fi;i=$(expr $i + 1);done
systemctl start docker.service
systemctl enable docker.service
SHELL
end

A little explanation.

• config.vm.network :forwarded_port, id: "ssh", guest: 22, host: 2210
• Set SSH port forwarding from 22 to 2210. Ssh connection to host locahost on port 2210.
• vb.memory = "8196"
• Allotted memory to 8GB. as you like.
• i=1; while [ $i -le 10 ]; do echo $i;yum -y --disablerepo=* --enablerepo=ol7_addons,ol7_latest install docker-engine;if [ $? -eq 0 ];then break;fi;i=$(expr $i + 1);done
• You should only need "yum -y docker-engine". Here, it takes time to update yum, so we will focus on only the necessary repositories. In addition, I did not succeed for some reason at one time, and sometimes I succeeded if I did it several times, so I repeated it until it succeeded (up to 10 retries).
• systemctl start docker.service
• systemctl enable docker.service
• Start Docker service and enable automatic start

Start Vagrant

> vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'oraclelinux/7'...
<Omission>

> vagrant ssh

Welcome to Oracle Linux Server release 7.8 (GNU/Linux 4.14.35-2025.400.8.el7uek.x86_64)

The Oracle Linux End-User License Agreement can be viewed here:

  * /usr/share/eula/eula.en_US

For additional packages, updates, documentation and community help, see:

  * https://yum.oracle.com/

[vagrant@localhost ~]$ sudo su -
[root@localhost ~]# docker version
Client: Docker Engine - Community
 Version:           19.03.11-ol
 API version:       1.40
 Go version:        go1.14.7
 Git commit:        78418d7
 Built:             Tue Aug 18 22:46:21 2020
 OS/Arch:           linux/amd64
 Experimental:      false
<The following is omitted>