14 КіБ
#inifile
####Table of Contents
- Overview
- Module Description - What the module does and why it is useful
- Setup - The basics of getting started with inifile module
- Usage - Configuration options and additional functionality
- Reference - An under-the-hood peek at what the module is doing and how
- Limitations - OS compatibility, etc.
- Development - Guide for contributing to the module
##Overview
The inifile module lets Puppet manage settings stored in INI-style configuration files.
##Module Description
Many applications use INI-style configuration files to store their settings. This module supplies two custom resource types to let you manage those settings through Puppet.
##Setup
###Beginning with inifile
To manage a single setting in an INI file, add the ini_setting type to a class:
ini_setting { "sample setting":
ensure => present,
path => '/tmp/foo.ini',
section => 'bar',
setting => 'baz',
value => 'quux',
}
##Usage
The inifile module tries hard not to manipulate your file any more than it needs to. In most cases, it doesn't affect the original whitespace, comments, ordering, etc.
- Supports comments starting with either '#' or ';'.
- Supports either whitespace or no whitespace around '='.
- Adds any missing sections to the INI file.
###Manage multiple values in a setting
Use the ini_subsetting type:
ini_subsetting {'sample subsetting':
ensure => present,
section => '',
key_val_separator => '=',
path => '/etc/default/pe-puppetdb',
setting => 'JAVA_ARGS',
subsetting => '-Xmx',
value => '512m',
}
Results in managing this -Xmx subsetting:
JAVA_ARGS="-Xmx512m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/pe-puppetdb/puppetdb-oom.hprof"
###Use a non-standard section header
ini_setting { 'default minage':
ensure => present,
path => '/etc/security/users',
section => 'default',
setting => 'minage',
value => '1',
section_prefix => '',
section_suffix => ':',
}
Results in:
default:
minage = 1
###Implement child providers
You might want to create child providers that inherit the ini_setting provider, for one or both of these purposes:
-
Make a custom resource to manage an application that stores its settings in INI files, without recreating the code to manage the files themselves.
-
Purge all unmanaged settings from a managed INI file.
To implement child providers, first specify a custom type. Have it implement a namevar called name and a property called value:
#my_module/lib/puppet/type/glance_api_config.rb
Puppet::Type.newtype(:glance_api_config) do
ensurable
newparam(:name, :namevar => true) do
desc 'Section/setting name to manage from glance-api.conf'
# namevar should be of the form section/setting
newvalues(/\S+\/\S+/)
end
newproperty(:value) do
desc 'The value of the setting to define'
munge do |v|
v.to_s.strip
end
end
end
Your type also needs a provider that uses the ini_setting provider as its parent:
# my_module/lib/puppet/provider/glance_api_config/ini_setting.rb
Puppet::Type.type(:glance_api_config).provide(
:ini_setting,
# set ini_setting as the parent provider
:parent => Puppet::Type.type(:ini_setting).provider(:ruby)
) do
# implement section as the first part of the namevar
def section
resource[:name].split('/', 2).first
end
def setting
# implement setting as the second part of the namevar
resource[:name].split('/', 2).last
end
# hard code the file path (this allows purging)
def self.file_path
'/etc/glance/glance-api.conf'
end
end
Now the settings in /etc/glance/glance-api.conf file can be managed as individual resources:
glance_api_config { 'HEADER/important_config':
value => 'secret_value',
}
If you've implemented self.file_path, you can have Puppet purge the file of all lines that aren't implemented as Puppet resources:
resources { 'glance_api_config'
purge => true,
}
Manage multiple ini_settings
To manage multiple ini_settings, use the create_ini_settings function.
$defaults = { 'path' => '/tmp/foo.ini' }
$example = { 'section1' => { 'setting1' => 'value1' } }
create_ini_settings($example, $defaults)
results in:
ini_setting { '[section1] setting1':
ensure => present,
section => 'section1',
setting => 'setting1',
value => 'value1',
path => '/tmp/foo.ini',
}
To include special parameters, the following code:
$defaults = { 'path' => '/tmp/foo.ini' }
$example = {
'section1' => {
'setting1' => 'value1',
'settings2' => {
'ensure' => 'absent'
}
}
}
create_ini_settings($example, $defaults)
results in:
ini_setting { '[section1] setting1':
ensure => present,
section => 'section1',
setting => 'setting1',
value => 'value1',
path => '/tmp/foo.ini',
}
ini_setting { '[section1] setting2':
ensure => absent,
section => 'section1',
setting => 'setting2',
path => '/tmp/foo.ini',
}
Manage multiple ini_settings with Hiera
This example requires Puppet 3.x/4.x, as it uses automatic retrieval of Hiera data for class parameters and puppetlabs/stdlib.
For the profile example:
class profile::example (
$settings,
) {
validate_hash($settings)
$defaults = { 'path' => '/tmp/foo.ini' }
create_ini_settings($settings, $defaults)
}
Provide this in your Hiera data:
profile::example::settings:
section1:
setting1: value1
setting2: value2
setting3:
ensure: absent
Results in:
ini_setting { '[section1] setting1':
ensure => present,
section => 'section1',
setting => 'setting1',
value => 'value1',
path => '/tmp/foo.ini',
}
ini_setting { '[section1] setting2':
ensure => present,
section => 'section1',
setting => 'setting2',
value => 'value2',
path => '/tmp/foo.ini',
}
ini_setting { '[section1] setting3':
ensure => absent,
section => 'section1',
setting => 'setting3',
path => '/tmp/foo.ini',
}
##Reference
###Public Types
###Public Functions
Type: ini_setting
Manages a setting within an INI file.
Parameters
ensure
Determines whether the specified setting should exist. Valid options: 'present' and 'absent'. Default value: 'present'.
key_val_separator
Optional. Specifies a string to use between each setting name and value (e.g., to determine whether the separator includes whitespace). Valid options: a string. Default value: ' = '.
name
Optional. Specifies an arbitrary name to identify the resource. Valid options: a string. Default value: the title of your declared resource.
path
Required. Specifies an INI file containing the setting to manage. Valid options: a string containing an absolute path.
section
Optional. Designates a section of the specified INI file containing the setting to manage. To manage a global setting (at the beginning of the file, before any named sections) enter "". Defaults to "". Valid options: a string.
setting
Required. Designates a setting to manage within the specified INI file and section. Valid options: a string.
show_diff
Optional. Prevents outputting actual values to the logfile. Useful for handling of passwords and other sensitive information. Possible values are:
true: This allows all values to be passed to logfiles. (default)false: The values in the logfiles will be replaced with[redacted sensitive information].md5: The values in the logfiles will be replaced with their md5 hash.
Global show_diff configuraton takes priority over this one - https://docs.puppetlabs.com/references/latest/configuration.html#showdiff. Default value: 'true'.
value
Optional. Supplies a value for the specified setting. Valid options: a string. Default value: undefined.
section_prefix
Optional. Designates the string that will appear before the section's name. Default value: "["
section_suffix
Optional. Designates the string that will appear after the section's name. Default value: "]".
refreshonly
Optional. A boolean to indicate whether or not the value associated with the setting should be updated if this resource is only part of a refresh event. Default value: false.
For example, if we want a timestamp associated with the last time a setting's value was updated, we could do something like this:
ini_setting { 'foosetting':
ensure => present,
path => '/tmp/file.ini',
section => 'foo',
setting => 'foosetting',
value => 'bar',
notify => Ini_Setting['foosetting_timestamp'],
}
$now = strftime('%Y-%m-%d %H:%M:%S')
ini_setting {'foosetting_timestamp':
ensure => present,
path => '/tmp/file.ini',
section => 'foo',
setting => 'foosetting_timestamp',
value => $now,
refreshonly => true,
}
NOTE: This type finds all sections in the file by looking for lines like ${section_prefix}${title}${section_suffix}.
Type: ini_subsetting
Manages multiple values within the same INI setting.
Parameters
ensure
Specifies whether the subsetting should be present. Valid options: 'present' and 'absent'. Default value: 'present'.
key_val_separator
Optional. Specifies a string to use between setting name and value (e.g., to determine whether the separator includes whitespace). Valid options: a string. Default value: ' = '.
path
Required. Specifies an INI file containing the subsetting to manage. Valid options: a string containing an absolute path.
quote_char
Optional. The character used to quote the entire value of the setting. Valid values are '', '"', and "'". Defaults to ''. Valid options: '', '"' and "'". Default value: ''.
section
Optional. Designates a section of the specified INI file containing the setting to manage. To manage a global setting (at the beginning of the file, before any named sections) enter "". Defaults to "". Valid options: a string.
setting
Required. Designates a setting within the specified section containing the subsetting to manage. Valid options: a string.
show_diff
Optional. Prevents outputting actual values to the logfile. Useful for handling of passwords and other sensitive information. Possible values are:
true: This allows all values to be passed to logfiles. (default)false: The values in the logfiles will be replaced with[redacted sensitive information].md5: The values in the logfiles will be replaced with their md5 hash.
Global show_diff configuraton takes priority over this one - https://docs.puppetlabs.com/references/latest/configuration.html#showdiff. Default value: 'true'.
subsetting
Required. Designates a subsetting to manage within the specified setting. Valid options: a string.
subsetting_separator
Optional. Specifies a string to use between subsettings. Valid options: a string. Default value: " ".
use_exact_match
Optional. Whether to use partial or exact matching for subsetting. Should be set to true if the subsettings do not have values. Valid options: true, false. Default value: false.
value
Optional. Supplies a value for the specified subsetting. Valid options: a string. Default value: undefined.
Function: create_ini_settings
Manages multiple ini_setting resources from a hash. Note that this cannot be used with ini_subsettings.
create_ini_settings($settings, $defaults)
Arguments
First argument: settings
Required. Specify a hash representing the ini_setting resources you want to create.
Second argument: defaults
Optional. Accepts a hash to be used as the values for any attributes not defined in the first argument.
$example = {
'section1' => {
'setting1' => {
'value' => 'value1', 'path' => '/tmp/foo.ini'
}
}
}
Default value: '{}'.
##Limitations
This module has been tested on all PE-supported platforms, and no issues have been identified. Additionally, it is tested (but not supported) on Windows 7, Mac OS X 10.9, and Solaris 12.
Due to (PUP-4709) the create_ini_settings function will cause errors when attempting to create multiple ini_settings in one go when using Puppet 4.0.x or 4.1.x. If needed, the temporary fix for this can be found here: https://github.com/puppetlabs/puppetlabs-inifile/pull/196.
##Development
Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. We can't access the huge number of platforms and myriad of hardware, software, and deployment configurations that Puppet is intended to serve.
We want to keep it as easy as possible to contribute changes so that our modules work in your environment. There are a few guidelines that we need contributors to follow so that we can have a chance of keeping on top of things.
For more information, see our module contribution guide.
###Contributors
To see who's already involved, see the list of contributors.