Set up the repository

Note

The documentation herein applies only to Oracle Linux 7. Mirantis does not support Oracle 8.

You only need to set up the repository once, after which you can install MCR from the repository and upgrade as needed.

MCR supports Oracle Linux 64-bit version 7.8 or later and Red Hat Compatible Kernel (RHCK) version 3.10.0-1127 or later.

Note

Mirantis recommends using fast storage, such as solid-state media.

1. Remove any existing Docker repositories from /etc/yum.repos.d/:

   sudo rm /etc/yum.repos.d/docker*.repo
   

2. Store https://repos.mirantis.com in an environment variable:

   export DOCKERURL="https://repos.mirantis.com"
   

3. Store the value of DOCKERURL using a yum variable in /etc/yum/vars/:

   sudo -E sh -c \
   'echo "$DOCKERURL/oraclelinux" > /etc/yum/vars/dockerurl'
   

4. Install yum-utils to get the yum-config-manager utility:

   sudo yum install -y yum-utils
   

5. Enable the Oracle ol7_addons repository to ensure that you have access to the container-selinux package that docker-ee requires:

   sudo yum-config-manager --enable ol7_addons
   

6. Add the stable MCR repository:

   sudo -E yum-config-manager \
   --add-repo \
   "$DOCKERURL/oraclelinux/docker-ee.repo"