9.7. Installing and Configuring MCollective on Node Hosts

Procedure 9.5. To Install and Configure MCollective on the Node Host:

1. Install all required packages for MCollective on Host 2 with the following command:

   # yum install openshift-origin-msg-node-mcollective

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2. Replace the contents of the /opt/rh/ruby193/root/etc/mcollective/server.cfg file with the following configuration. Remember to change the setting for plugin.activemq.pool.1.host from broker.example.com to the host name of Host 1. Use the same password for the MCollective user specified in the /etc/activemq/activemq.xml file on Host 1. Use the same password for the plugin.psk parameter, and the same numbers for the heartbeat parameters specified in the /opt/rh/ruby193/root/etc/mcollective/client.cfg file on Host 1:

   main_collective = mcollective
   collectives = mcollective
   libdir = /opt/rh/ruby193/root/usr/libexec/mcollective
   logfile = /var/log/openshift/node/ruby193-mcollective.log
   loglevel = debug
   
   daemonize = 1
   direct_addressing = 0
   
   # Plugins
   securityprovider = psk
   plugin.psk = asimplething
   
   connector = activemq
   plugin.activemq.pool.size = 1
   plugin.activemq.pool.1.host = broker.example.com
   plugin.activemq.pool.1.port = 61613
   plugin.activemq.pool.1.user = mcollective
   plugin.activemq.pool.1.password = marionette
   
   plugin.activemq.heartbeat_interval = 30
   plugin.activemq.max_hbread_fails = 2
   plugin.activemq.max_hbrlck_fails = 2
   
   # Node should retry connecting to ActiveMQ forever
   plugin.activemq.max_reconnect_attempts = 0
   plugin.activemq.initial_reconnect_delay = 0.1
   plugin.activemq.max_reconnect_delay = 4.0
   
   # Facts
   factsource = yaml
   plugin.yaml = /opt/rh/ruby193/root/etc/mcollective/facts.yaml

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3. Configure the ruby193-mcollective service to start on boot:

   # chkconfig ruby193-mcollective on

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4. Start the ruby193-mcollective service immediately:

   # service ruby193-mcollective start

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   Note

   If you use the kickstart or bash script, the configure_mcollective_for_activemq_on_node function performs these steps.
5. Run the following command on the broker host (Host 1) to verify that Host 1 recognizes Host 2:

   # oo-mco ping

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