4e5e989603
With the creation of the new openstack_config provider, some processing
that was done in nova_config has been centralized in
openstack_config.
Impacted methods are :
* section
* setting
* separator
Also, this commit adds the fact that, when passing a specific string
(ensure_absent_val) the provider will behave as if ensure => absent was
specified. '<SERVICE DEFAULT>' is the default value for
ensure_absent_val.
The use case is the following :
nova_config { 'DEFAULT/foo' : value => 'bar' } # will work as usual
nova_config { 'DEFAULT/foo' : value => '<SERVICE DEFAULT>' } # will mean absent
That means that all the current :
if $myvar {
nova_config { 'DEFAULT/foo' : value => $myvar }
} else {
nova_config { 'DEFAULT/foo' : ensure => absent }
}
can be removed in favor of :
nova_config { 'DEFAULT/foo' : value => $myvar }
If for any reason '<SERVICE DEFAULT>' turns out to be a valid value for
a specific parameter. One could by pass that doing the following :
nova_config { 'DEFAULT/foo' : value => '<SERVICE DEFAULT>',
ensure_absent_val => 'foo' }
Change-Id: I7ba9bf6c07edd7248e401ef5f55abf6e3464a0a3
Depends-On: I0eeebde3aac2662cc7e69bfad7f8d2481463a218
135 lines
4.2 KiB
Markdown
135 lines
4.2 KiB
Markdown
nova
|
|
====
|
|
|
|
6.0.0 - 2015.1 - Kilo
|
|
|
|
#### Table of Contents
|
|
|
|
1. [Overview - What is the nova module?](#overview)
|
|
2. [Module Description - What does the module do?](#module-description)
|
|
3. [Setup - The basics of getting started with nova](#setup)
|
|
4. [Implementation - An under-the-hood peek at what the module is doing](#implementation)
|
|
5. [Limitations - OS compatibility, etc.](#limitations)
|
|
6. [Development - Guide for contributing to the module](#development)
|
|
7. [Contributors - Those with commits](#contributors)
|
|
|
|
Overview
|
|
--------
|
|
|
|
The nova module is a part of [OpenStack](https://github.com/openstack), an effort by the Openstack infrastructure team to provide continuous integration testing and code review for Openstack and Openstack community projects as part of the core software. The module its self is used to flexibly configure and manage the compute service for Openstack.
|
|
|
|
Module Description
|
|
------------------
|
|
|
|
The nova module is a thorough attempt to make Puppet capable of managing the entirety of nova. This includes manifests to provision such things as keystone endpoints, RPC configurations specific to nova, and database connections. Types are shipped as part of the nova module to assist in manipulation of configuration files.
|
|
|
|
This module is tested in combination with other modules needed to build and leverage an entire Openstack software stack. These modules can be found, all pulled together in the [openstack module](https://github.com/stackforge/puppet-openstack).
|
|
|
|
Setup
|
|
-----
|
|
|
|
**What the nova module affects:**
|
|
|
|
* [Nova](https://wiki.openstack.org/wiki/Nova), the compute service for Openstack.
|
|
|
|
### Installing nova
|
|
|
|
puppet module install openstack/nova
|
|
|
|
### Beginning with nova
|
|
|
|
To utilize the nova module's functionality you will need to declare multiple resources. The following is a modified excerpt from the [openstack module](https://github.com/stackforge/puppet-openstack). This is not an exhaustive list of all the components needed, we recommend you consult and understand the [openstack module](https://github.com/stackforge/puppet-openstack) and the [core openstack](http://docs.openstack.org) documentation.
|
|
|
|
```puppet
|
|
class { 'nova':
|
|
database_connection => 'mysql://nova:a_big_secret@127.0.0.1/nova?charset=utf8',
|
|
rabbit_userid => 'nova',
|
|
rabbit_password => 'an_even_bigger_secret',
|
|
image_service => 'nova.image.glance.GlanceImageService',
|
|
glance_api_servers => 'localhost:9292',
|
|
verbose => false,
|
|
rabbit_host => '127.0.0.1',
|
|
}
|
|
|
|
class { 'nova::compute':
|
|
enabled => true,
|
|
vnc_enabled => true,
|
|
}
|
|
|
|
class { 'nova::compute::libvirt':
|
|
migration_support => true,
|
|
}
|
|
```
|
|
|
|
Implementation
|
|
--------------
|
|
|
|
### nova
|
|
|
|
nova is a combination of Puppet manifest and ruby code to delivery configuration and extra functionality through types and providers.
|
|
|
|
### Types
|
|
|
|
#### nova_config
|
|
|
|
The `nova_config` provider is a children of the ini_setting provider. It allows one to write an entry in the `/etc/nova/nova.conf` file.
|
|
|
|
```puppet
|
|
nova_config { 'DEFAULT/verbose' :
|
|
value => true,
|
|
}
|
|
```
|
|
|
|
This will write `verbose=true` in the `[DEFAULT]` section.
|
|
|
|
##### name
|
|
|
|
Section/setting name to manage from `nova.conf`
|
|
|
|
##### value
|
|
|
|
The value of the setting to be defined.
|
|
|
|
##### secret
|
|
|
|
Whether to hide the value from Puppet logs. Defaults to `false`.
|
|
|
|
##### ensure_absent_val
|
|
|
|
If value is equal to ensure_absent_val then the resource will behave as if `ensure => absent` was specified. Defaults to `<SERVICE DEFAULT>`
|
|
|
|
Limitations
|
|
-----------
|
|
|
|
* Supports libvirt, xenserver and vmware compute drivers.
|
|
* Tested on EL and Debian derivatives.
|
|
|
|
Development
|
|
-----------
|
|
|
|
Developer documentation for the entire puppet-openstack project.
|
|
|
|
* https://wiki.openstack.org/wiki/Puppet-openstack#Developer_documentation
|
|
|
|
|
|
Beaker-Rspec
|
|
------------
|
|
|
|
This module has beaker-rspec tests
|
|
|
|
To run the tests on the default vagrant node:
|
|
|
|
```shell
|
|
bundle install
|
|
bundle exec rspec spec/acceptance
|
|
```
|
|
|
|
For more information on writing and running beaker-rspec tests visit the documentation:
|
|
|
|
* https://github.com/puppetlabs/beaker/wiki/How-to-Write-a-Beaker-Test-for-a-Module
|
|
|
|
Contributors
|
|
------------
|
|
|
|
* https://github.com/openstack/puppet-nova/graphs/contributors
|