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Deploying a poller

With Centreon Cloud, your central server is already ready to use. All you have to do is to install pollers in your infrastructure, and that is very easy: just execute a script and then export the configuration, and there you are!

Before deploying a poller, make sure the prerequisites for your host machine are met. Only users with the Administrator or Editor roles can access the poller installation command.

Step 1: Running the poller installation script​

  1. Use SSH to connect to the server that will become a poller.

  2. Disable SELinux (this is recommended to obtain a seamless installation. Advanced users can enable it depending on their SELinux expertise or security constraints, but should be attentive to the side-effects of this setup.)

    1. Edit the configuration file /etc/sysconfig/selinux.
    2. Set the value of SELINUX to disabled (SELINUX=disabled).
    3. Save the file and reboot the system to apply the change.

  3. By default, the hostname of the machine will become the name of the poller. If you want to change the machine's hostname, use the following command: hostnamectl set-hostname your-hostname.

  4. On your central server, click the arrow next to Pollers at the left of the header bar.

  5. In the pop-up that appears, click Copy install command. The command is copied to your clipboard.

  6. On the server that will become your poller, in your terminal, paste the install command and execute it (this should take about 10 minutes).

  7. When this is finished, on your central server, go to Configuration > Pollers > Pollers. The new poller appears in the list of pollers.

    • The address in the IP Address column is that of the poller as seen by the central server.
    • The poller is not running yet (No in the Is running? column).

Step 2: Exporting the configuration and restarting the poller​

Export the configuration for this poller:

  1. On the central server, go to Configuration > Pollers > Pollers, then select the poller you have just created.
  2. Click Export configuration. A new page opens:
    • Check the first four boxes
    • Under Restart Monitoring Engine, select the Restart method.
  3. Click Export. A log of the export is displayed. This should have no errors.
  4. Go back to Configuration > Pollers > Pollers: the poller now has Yes under Is running?. Your poller is now ready to monitor resources.