MonTT - Generate Monitoring Config with Template Toolkit

Did you ever want to write sophisticated Nagios/Naemon config files using the power of template toolkit? Basically this is a config preprocesseor.

Requirements

You will need

• Perl

• 'Template' module from CPAN

Getting Started

The input folder(s) should contain some templates and a source of hosts and contacts. Then all will be put together into a clean and maintainable nagios configuration.

The input folder looks like a nagios config folder but you are allowed to use Template Toolkit Syntax.

For example:

input/
|-- cgi.cfg
|-- conf.d
|   |-- apps                      # will be processed for every host
|   |   `-- apache.cfg            # will be processed for every host with app tag apache
|   |-- contacts                  # will be processed for every contact
|   |-- contacts.cfg
|   `-- hosts
|       |-- linux                 # every host of type linux
|       |   |-- centos.cfg        # every host of type linux with tag centos
|       |   `-- debian
|       |       |-- squeeze.cfg   # every host of type linux with tags debian and squeeze
|       |       `-- wheezy.cfg
|       `-- switch.cfg
|-- nagios.cfg
|-- resource.cfg
|-- static                        # static files will just be copied into destination folder
|   `-- conf.d
|       |-- commands.cfg
|       `-- timeperiods.cfg
|-- hooks                         # pre/post hooks
`-- post_process*                 # scripts will be run after processing is finished

All files are nagios configuration files, but you may use template toolkit syntax to add some magic to those files. Any folder below conf.d except 'apps', 'contacts' and 'hosts' will be processed only once. The 'apps' and 'hosts' folder will be processed for every host, the 'contact' folder for every contact.

then run the montt processor:

%> ./montt input/ output/

The processor won’t overwrite existing files, so export the new config into a new empty folder and move files afterwards. You can automate this step with hooks.

Examples

For now the only examples are the tests folder below t/data.

Hooks

Hooks are scripts which are run at certain points of the export procedure. Hooks have to be executable and have to be placed in a hook folder below the input directory.

All hooks will be run with a comma seperated list of input folders as argument.

ex.:

 inputfolder1/hooks/pre inputfolder1,inputfolder2

pre

The 'pre' hook is run before the export.

post

The 'post' hook is run after the export.

Post Processing

Post Processor can be any script which matches post_process* in any of the input folders.

All scripts will be run with a the output folders as argument.

ex.:

 inputfolder1/post_process.pl outputfolder