Chapter 2. Enabling file system access for containers on Red Hat Enterprise Linux based nodes

Deploying OpenShift Container Platform on a Red Hat Enterprise Linux base in a user provisioned infrastructure (UPI) does not automatically provide container access to the underlying Ceph file system.

Note

This process is not necessary for hosts based on Red Hat Enterprise Linux CoreOS.

Procedure

Perform the following steps on each node in your cluster.

  1. Log in to the Red Hat Enterprise Linux based node and open a terminal.

  2. Verify that the node has access to the rhel-7-server-extras-rpms repository. 

    # subscription-manager repos --list-enabled | grep rhel-7-server

    If you do not see both rhel-7-server-rpms and rhel-7-server-extras-rpms in the output, or if there is no output, run the following commands to enable each repository. 

    # subscription-manager repos --enable=rhel-7-server-rpms
# subscription-manager repos --enable=rhel-7-server-extras-rpms

  3. Install the required packages. 

    # yum install -y policycoreutils container-selinux

  4. Persistently enable container use of the Ceph file system in SELinux. 

    # setsebool -P container_use_cephfs on