Common deployment issues and solutions

This module contains a few common issues that are faced while installing or setting up the tools and modules described in this chapter:

1. For the Ansible python-setup tools, take a look at the following screenshot:

   

   If your Ansible installation shows the preceding message, then execute the following command to resolve it:

   $ sudo pip install setuptools
   

2. SSH runs on a different port, and nagios shows a connection refused error.

   You will get the following exception if you run your ssh server on a different port:

   SERVICE ALERT: localhost;SSH;CRITICAL;HARD;4;Connection refused

   This can be fixed by editing the following line from /etc/nagios/conf.d/services_nagios.cfg:

   # check that ssh services are running
   define service {
     hostgroup_name          ssh-servers
     service_description     SSH
     check_command           check_ssh_port!6666!server
     use                     generic-service
     notification_interval   0 ; set > 0 if you want to be renotified

   Here, we used...