This article explains the procedure on how to install Certificate on Versa Analytics nodes, running in cluster configuration.

 

Prerequisite:

 

  1. Versa Director is running HA setup in this document and both the Versa Director nodes are up and running on 16.1R2S6.
  2. One of the Versa Director is MASTER, and the other one is SLAVE

 

 

 

 

 

 

 

 

 

 

 

  1. 4 nodes Versa Analytics cluster – 2 nodes with analytics personality and 2 nodes with search personality is considered in this example, all the nodes are up and running with 16.1R2S6.
  2. For Versa Director to talk to Versa Analytics, we need to register Versa Director in the Versa Analytics server.
  3. Login to Versa Director nodes and stop vsh process in both master and slave Versa Director to prevent failover.

 

 

 

 

  1. Navigate to the path /opt/versa/vnms/scripts in the MASTER Versa Director
  2. Regenerate the certificate on the Versa Director by executing the below script as a versa user ( su versa /versa123)

 

“./vnms-certgen.sh --cn <master director domain name> --san <slave director domain name > --overwrite --storepass <password> “ command as shown below.

        Include the --storepass option to regenerate the cert.

             

 

             

 

         

  1. Start the vsh services (vsh start)
    Please ensure that we execute this as admin user

 

           

             

             

 

  1. Replicate the certificate in the analytics nodes by executing the script  “vnms-cert-sync.sh –sync”. This script will replicate the certificate in all the analytics node of the cluster and restart the nodes.
    Please note: This will take 5-10 mins.

 

 

 

 

 

 

 

 

 

 

 

Versa Analytics cluster name should be whatever you have defined in Versa Director as the script will pull all the IP addresses of analytics cluster from here.

 

 

 

  1. Verify the certificates in the analytics node.

 

 

 

  1. In all 4 nodes of Versa Analytics add primary and secondary Versa Director hostname with northbound IP address as shown below (for Analytics node 1 as an example).

    Please note:     Without this step it will give error “unable to connect”, because it will not be able to resolve the hostname to IP address.

 

 

 

  1. Open the Versa Analytics UI and try to register the Versa Director nodes in the Versa Analytics. (This operation needs to be performed for all 4 Analytics nodes of cluster). Verify that Versa Director nodes are successfully registered in Versa Analytics.