9.9. Configuring SSH Keys on the Node Host

Copy the appropriate SSH key from the broker host to each node host. This is necessary to move gears between node hosts. The following instructions describe how to configure your SSH keys.
You can have multiple broker hosts configured for redundancy. Ensure that each node host has the rsync_id_rsa.pub public key of each broker host by repeating steps three through five of the following procedure for each broker host.

Procedure 9.6. To Configure SSH Keys on the Node Host:

  1. On the node host, create a /root/.ssh directory if it does not exist: 
    # mkdir -p /root/.ssh
  2. Configure the appropriate permissions for the /root/.ssh directory: 
    # chmod 700 /root/.ssh
  3. Copy the SSH key from the broker host to each node host: 
    # scp root@broker.example.com:/etc/openshift/rsync_id_rsa.pub /root/.ssh/
  4. Supply the root user password of the broker host when prompted: 
    root@broker.example.com's password:
  5. Copy the contents of the SSH key to the /root/.ssh/authorized_keys file: 
    # cat /root/.ssh/rsync_id_rsa.pub >> /root/.ssh/authorized_keys
  6. Configure the appropriate permissions for the /root/.ssh/authorized_keys file: 
    # chmod 600 /root/.ssh/authorized_keys
  7. Remove the SSH key: 
    # rm -f /root/.ssh/rsync_id_rsa.pub

Important

Ensure you have performed this procedure on all node hosts.