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Version: 24.04

Integrating new pollers in a Centreon HA cluster

Obtaining the central nodes' thumbprints​

The Gorgone services of both central nodes will need to be authorized by the pollers' Gorgone services.

  • First, obtain each central node's key:
wget -O /root/gorgone_key_thumbprint.pl  https://raw.githubusercontent.com/centreon/centreon-gorgone/master/contrib/gorgone_key_thumbprint.pl
perl /root/gorgone_key_thumbprint.pl --key-path /var/lib/centreon-gorgone/.keys/rsakey.priv.pem

The command output should look like this:

2020-09-25 10:47:35 - INFO - File '/var/lib/centreon-gorgone/.keys/rsakey.priv.pem' JWK thumbprint: RsfNibuDdOvzwP75G72rpIKIG2nRhkyGQrQXE4pXa_s
  • You must have two keys; one for each central node. Copy the last part of the printed lines (what is displayed after JWK thumbprint:) and keep it for later.

Adding the poller to the configuration​

  • Add your poller to the configuration "the standard way" following these steps with the ZeroMQ protocol. Make sure you declare the VIP as the address of the central server the poller will be attached to.

  • You should now have overwritten the /etc/centreon-gorgone/config.d/40-gorgoned.yaml file, and it should contain lines like these:

    authorized_clients:
    - key: tRsFMBv9X3ScNFMwvG8D652nXMsgEYMb1qsJek-Mns8

Configuring Gorgone on the poller​

  • You must now modify /etc/centreon-gorgone/config.d/40-gorgoned.yaml on the poller in order to have both central keys in this section:
    authorized_clients:
    - key: key_1_from_earlier
    - key: key_2_from_earlier
  • Now restart Gorgone on the poller:
systemctl restart gorgoned

At this point, both your central nodes should be allowed to connect to your poller's Gorgone service and send configurations, retrieve statistics, restart services, etc.