Chapter 6. Managing content delivery servers

Procedure

1. Navigate to the Red Hat Update Infrastructure Management Tool home screen:

   [root@rhua ~]# rhui-manager

2. Press c to select manage content delivery servers (CDS).
3. From the Content Delivery Server (CDS) Management screen, press a to add a new CDS instance.

4. Enter the hostname of the CDS to add:

   Hostname of the CDS instance to register:
   cds1.example.com

5. Enter the user name that will have SSH access to the CDS and have sudo privileges.

   Username with SSH access to <cds1.example.com> and sudo privileges:
   <cloud-user>

6. Enter the absolute path to the SSH private key for logging in to the CDS and press Enter.

   Absolute path to an SSH private key to log into <cds1.example.com> as <cloud-user>:
   /home/<cloud-user>/.ssh/id_rsa_rhua

7. Update the instance with the latest versions of available packages

   Update instance after registering? (y/n): y

8. Optional: If you wish to use custom SSL certificates, enter the absolute path to the custom SSL certificate, SSL Key, and SSL crt files.

   Note

   If you do not provide an SSL certificate, it will be automatically generated.

   Optional absolute path to user supplied SSL key file:
   /home/<cloud-user>/custom_ssl.key
   
   Optional absolute path to user supplied SSL crt file:
   /home/<cloud-user>/custom_ssl.crt
   
   .........................................................................
   The following CDS has been successfully added:
   
     Hostname:             <cds1.example.com>
     SSH Username:         <cloud-user>
     SSH Private Key:      /home/<cloud-user>/.ssh/id_rsa_rhua
   
   The CDS will now be configured:
   ....................................................................
   The CDS was successfully configured.

9. If adding the content delivery server fails, check that the firewall rules permit access between the RHUA and the CDS.

10. Run the mount command to see if shared storage is mounted as read-write.

    [root@rhua ~]# mount | grep rhui
    
    nfs.example.com:/export on /var/lib/rhui/remote_share type nfs4 (rw,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.8.41.163,local_lock=none,addr=10.8.41.163)

11. After successful configuration, repeat these steps for all remaining CDS nodes.

Procedure

1. Navigate to the Red Hat Update Infrastructure Management Tool home screen:

   [root@rhua ~]# rhui-manager

2. Press c to select manage content delivery servers (CDS):

3. From the Content Delivery Server (CDS) Management screen, press l to list all known CDS nodes that Red Hat Update Infrastructure 4 manages:

   Hostname:             <cds1.example.com>
   SSH Username:     <cloud-user>
   SSH Private Key:     /<cloud-user>/.ssh/id_rsa_rhua

Procedure

1. Navigate to the Red Hat Update Infrastructure Management Tool home screen:

   [root@rhua ~]# rhui-manager

2. Press c to select manage content delivery servers (CDS).
3. From the Content Delivery Server (CDS) Management screen, press r to select reinstall and reapply configuration to an existing CDS instance. The Red Hat Update Infrastructure Management Tool automatically performs all reinstallation and reconfiguration tasks.

4. Select the CDS to reinstall:

       1 -
       Hostname:             <cds1.example.com>
       SSH Username:     <cloud-user>
       SSH Private Key:     /<cloud-user>/.ssh/id_rsa_rhua

5. Enter a value or b to abort: 1: 1

6. Update instance(s) after reinstalling? (y/n): y

   Checking that the RHUA services are reachable from the instance...
   Done.
   
   
   Installing and configuring the CDS...
   
   PLAY [Registering a CDS instance] **********************************************
   
   ...
   
   TASK [Update CDS instance] *****************************************************
   ok: [cds1.example.com]
   
   PLAY RECAP *********************************************************************
   cloud-user@cds1.example.com : ok=24   changed=10   unreachable=0    failed=0    skipped=2    rescued=0    ignored=0
   
   Done.

Verification

1. Check that you successfully reinstalled and reconfigured the CDS by viewing the code output:

   Ensuring that instance ports are reachable ...
   Done.

Procedure

1. On the CDS node, create the /etc/pki/rhui/legacy directory if it does not already exist:

   # mkdir /etc/pki/rhui/legacy

2. Save the legacy CA certificate in the directory.

Procedure

1. On the CDS node, navigate to the /etc/pki/rhui/legacy/ directory:

   # cd /etc/pki/rhui/legacy/

2. Optional: Back up the existing CA certificates:

3. Delete the CA certificate that corresponds to the CA you want to limit:

   # rm example-legacy.crt

Procedure

1. Navigate to the Red Hat Update Infrastructure Management Tool home screen:

   [root@rhua ~]# rhui-manager

2. Press c to select manage content delivery servers (CDS).
3. From the Content Delivery Server (CDS) Management screen, press d to delete a CDS instance.

4. Enter the hostname of the CDS to delete:

   Hostname of the CDS instance to unregister:
   cds1.example.com