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

Deploying OpenShift Container Storage on an OpenShift Container Platform with worker nodes 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

Skip this step for hosts based on Red Hat Enterprise Linux CoreOS (RHCOS).

Procedure

  1. Log in to the Red Hat Enterprise Linux based node and open a terminal.
  2. For each node in your cluster:

    1. 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
    2. Install the required packages.

      # yum install -y policycoreutils container-selinux
    3. Persistently enable container use of the Ceph file system in SELinux.

      # setsebool -P container_use_cephfs on