isabella232 / puppet-nova

Minimal Puppet module for OpenStack Nova

#nova

DEPRECATION NOTICE

This module is no more actively maintained and will hardly be updated.

Please find an alternative module from other authors or consider Tiny Puppet as replacement.

If you want to maintain this module, contact Alessandro Franceschi

####Table of Contents

1. Overview
2. Module Description
3. Setup
   • Resources managed by nova module
   • Setup requirements
   • Beginning with module nova
4. Usage
5. Operating Systems Support
6. Development

##Overview

This module installs, manages and configures nova and its services.

##Module Description

The module is based on stdmod naming standards version 0.9.0.

Refer to http://github.com/stdmod/ for complete documentation on the common parameters.

For a fully automated Puppet setup of OpenStack you'd better use the official StackForge modules. This module is intended to be a quick replacement for setups where you want to manage configurations based on plain template files or where you want to puppettize an existing OpenStack installation.

##Setup

###Resources managed by nova module

• This module installs the nova package (in case of multiple services, the nova-api package is installed)
• Enables the nova service (in case of multiple services, the nova-api service is managed)
• Can manage all the configuration files (by default no file is changed)
• Can manage any nova service and its configuration file (by default no file is changed)

###Setup Requirements

• PuppetLabs stdlib module
• StdMod stdmod module
• Puppet version >= 2.7.x
• Facter version >= 1.6.2

###Beginning with module nova

To install the package provided by the module just include it:

    include nova

The main class arguments can be provided either via Hiera (from Puppet 3.x) or direct parameters:

    class { 'nova':
      parameter => value,
    }

The module provides a generic define to manage any nova configuration file in /etc/nova:

    nova::conf { 'sample.conf':
      content => '# Test',
    }

A define to manage the package/service/configfile of single nova services. To install the package and run the service:

    nova::generic_service { 'nova-registry': }

To provide a configuration file for the service (alternative to nova::conf):

    nova::generic_service { 'nova-registry':
      config_file_template => 'site/nova/nova-registry.conf
    }

##Usage

• A common way to use this module involves the management of the main configuration file via a custom template (provided in a custom site module):

    class { 'nova':
      config_file_template => 'site/nova/nova.conf.erb',
    }
  

• You can write custom templates that use setting provided but the config_file_options_hash paramenter

    class { 'nova':
      config_file_template      => 'site/nova/nova.conf.erb',
      config_file_options_hash  => {
        opt  => 'value',
        opt2 => 'value2',
      },
    }
  

• Use custom source (here an array) for main configuration file. Note that template and source arguments are alternative.

    class { 'nova':
      config_file_source => [ "puppet:///modules/site/nova/nova.conf-${hostname}" ,
                              "puppet:///modules/site/nova/nova.conf" ],
    }
  

• Recurse from a custom source directory for the whole configuration directory (/etc/nova).

    class { 'nova':
      config_dir_source  => 'puppet:///modules/site/nova/conf/',
    }
  

• Use custom source directory for the whole configuration directory and purge all the local files that are not on the dir. Note: This option can be used to be sure that the content of a directory is exactly the same you expect, but it is desctructive and may remove files.

    class { 'nova':
      config_dir_source => 'puppet:///modules/site/nova/conf/',
      config_dir_purge  => true, # Default: false.
    }
  

• Use custom source directory for the whole configuration dir and define recursing policy.

    class { 'nova':
      config_dir_source    => 'puppet:///modules/site/nova/conf/',
      config_dir_recursion => false, # Default: true.
    }
  

• Do not trigger a service restart when a config file changes.

    class { 'nova':
      config_dir_notify => '', # Default: Service[nova]
    }
  

##Operating Systems Support

This is tested on these OS:

• RedHat osfamily 6
• Ubuntu 12.04

##Development

Pull requests (PR) and bug reports via GitHub are welcomed.

When submitting PR please follow these quidelines:

• Provide puppet-lint compliant code
• If possible provide rspec tests
• Follow the module style and stdmod naming standards

When submitting bug report please include or link:

• The Puppet code that triggers the error
• The output of facter on the system where you try it
• All the relevant error logs
• Any other information useful to undestand the context