442 lines
11 KiB
Markdown
442 lines
11 KiB
Markdown
#Concat
|
||
|
||
[](https://travis-ci.org/puppetlabs/puppetlabs-concat)
|
||
|
||
####Table of Contents
|
||
|
||
1. [Overview](#overview)
|
||
2. [Module Description - What the module does and why it is useful](#module-description)
|
||
3. [Setup - The basics of getting started with concat](#setup)
|
||
* [What concat affects](#what-concat-affects)
|
||
* [Setup requirements](#setup-requirements)
|
||
* [Beginning with concat](#beginning-with-concat)
|
||
4. [Usage - Configuration options and additional functionality](#usage)
|
||
* [API _deprecations_](#api-deprecations)
|
||
5. [Reference - An under-the-hood peek at what the module is doing and how](#reference)
|
||
5. [Limitations - OS compatibility, etc.](#limitations)
|
||
6. [Development - Guide for contributing to the module](#development)
|
||
|
||
##Overview
|
||
|
||
This module constructs files from multiple fragments in an ordered way.
|
||
|
||
##Module Description
|
||
|
||
This module lets you use many concat::fragment{} resources throughout
|
||
your modules to construct a single file at the end. It does this through
|
||
a shell (or ruby) script and a temporary holding space for the fragments.
|
||
|
||
##Setup
|
||
|
||
###What concat affects
|
||
|
||
* Installs concatfragments.[sh|rb] based on platform.
|
||
* Adds a concat/ directory into Puppets `vardir`.
|
||
|
||
###Beginning with concat
|
||
|
||
To start using concat you need to create:
|
||
|
||
* A concat{} resource for the final file.
|
||
* One or more concat::fragment{}'s.
|
||
|
||
A minimal example might be:
|
||
|
||
```puppet
|
||
concat { '/tmp/file':
|
||
ensure => present,
|
||
}
|
||
|
||
concat::fragment { 'tmpfile':
|
||
target => '/tmp/file'
|
||
content => 'test contents',
|
||
order => '01'
|
||
}
|
||
```
|
||
|
||
##Usage
|
||
|
||
Please be aware that there have been a number of [API
|
||
_deprecations_](#api-deprecations).
|
||
|
||
If you wanted a /etc/motd file that listed all the major modules
|
||
on the machine. And that would be maintained automatically even
|
||
if you just remove the include lines for other modules you could
|
||
use code like below, a sample /etc/motd would be:
|
||
|
||
<pre>
|
||
Puppet modules on this server:
|
||
|
||
-- Apache
|
||
-- MySQL
|
||
</pre>
|
||
|
||
Local sysadmins can also append to the file by just editing /etc/motd.local
|
||
their changes will be incorporated into the puppet managed motd.
|
||
|
||
```puppet
|
||
class motd {
|
||
$motd = '/etc/motd'
|
||
|
||
concat { $motd:
|
||
owner => 'root',
|
||
group => 'root',
|
||
mode => '0644'
|
||
}
|
||
|
||
concat::fragment{ 'motd_header':
|
||
target => $motd,
|
||
content => "\nPuppet modules on this server:\n\n",
|
||
order => '01'
|
||
}
|
||
|
||
# local users on the machine can append to motd by just creating
|
||
# /etc/motd.local
|
||
concat::fragment{ 'motd_local':
|
||
target => $motd,
|
||
source => '/etc/motd.local',
|
||
order => '15'
|
||
}
|
||
}
|
||
|
||
# used by other modules to register themselves in the motd
|
||
define motd::register($content="", $order=10) {
|
||
if $content == "" {
|
||
$body = $name
|
||
} else {
|
||
$body = $content
|
||
}
|
||
|
||
concat::fragment{ "motd_fragment_$name":
|
||
target => '/etc/motd',
|
||
order => $order,
|
||
content => " -- $body\n"
|
||
}
|
||
}
|
||
```
|
||
|
||
To use this you'd then do something like:
|
||
|
||
```puppet
|
||
class apache {
|
||
include apache::install, apache::config, apache::service
|
||
|
||
motd::register{ 'Apache': }
|
||
}
|
||
```
|
||
|
||
##Reference
|
||
|
||
###Classes
|
||
|
||
####Public classes
|
||
|
||
####Private classes
|
||
* `concat::setup`: Sets up the concat script/directories.
|
||
|
||
###Parameters
|
||
|
||
###Defines
|
||
|
||
####concat
|
||
|
||
#####`ensure`
|
||
Controls if the combined file is present or absent.
|
||
|
||
######Example
|
||
- ensure => present
|
||
- ensure => absent
|
||
|
||
#####`path`
|
||
Controls the destination of the file to create.
|
||
|
||
######Example
|
||
- path => '/tmp/filename'
|
||
|
||
#####`owner`
|
||
Set the owner of the combined file.
|
||
|
||
######Example
|
||
- owner => 'root'
|
||
|
||
#####`group`
|
||
Set the group of the combined file.
|
||
|
||
######Example
|
||
- group => 'root'
|
||
|
||
#####`mode`
|
||
Set the mode of the combined file.
|
||
|
||
######Example
|
||
- mode => '0644'
|
||
|
||
#####`warn`
|
||
Determine if a warning message should be added at the top of the file to let
|
||
users know it was autogenerated by Puppet.
|
||
|
||
######Example
|
||
- warn => true
|
||
- warn => false
|
||
|
||
#####`warn_message`
|
||
Set the contents of the warning message.
|
||
|
||
######Example
|
||
- warn_message => 'This file is autogenerated!'
|
||
|
||
#####`force`
|
||
Determine if empty files are allowed when no fragments were added.
|
||
|
||
######Example
|
||
- force => true
|
||
- force => false
|
||
|
||
#####`backup`
|
||
Controls the filebucket behavior used for the file.
|
||
|
||
######Example
|
||
- backup => 'puppet'
|
||
|
||
#####`replace`
|
||
Controls if Puppet should replace the destination file if it already exists.
|
||
|
||
######Example
|
||
- replace => true
|
||
- replace => false
|
||
|
||
#####`order`
|
||
Controls the way in which the shell script chooses to sort the files. It's
|
||
rare you'll need to adjust this.
|
||
|
||
######Allowed Values
|
||
- order => 'alpha'
|
||
- order => 'numeric'
|
||
|
||
#####`ensure_newline`
|
||
Ensure there's a newline at the end of the fragments.
|
||
|
||
######Example
|
||
- ensure_newline => true
|
||
- ensure_newline => false
|
||
|
||
####concat::fragment
|
||
|
||
#####`target`
|
||
Choose the destination file of the fragment.
|
||
|
||
######Example
|
||
- target => '/tmp/testfile'
|
||
|
||
#####`content`
|
||
Create the content of the fragment.
|
||
|
||
######Example
|
||
- content => 'test file contents'
|
||
|
||
#####`source`
|
||
Find the sources within Puppet of the fragment.
|
||
|
||
######Example
|
||
- source => 'puppet:///modules/test/testfile'
|
||
- source => ['puppet:///modules/test/1', 'puppet:///modules/test/2']
|
||
|
||
#####`order`
|
||
Order the fragments.
|
||
|
||
######Example
|
||
- order => '01'
|
||
|
||
#####`ensure`
|
||
Control the file of fragment created.
|
||
|
||
######Example
|
||
- ensure => 'present'
|
||
- ensure => 'absent'
|
||
- ensure => 'file'
|
||
- ensure => 'directory'
|
||
|
||
#####`mode`
|
||
Set the mode of the fragment.
|
||
|
||
######Example
|
||
- mode => '0644'
|
||
|
||
#####`owner`
|
||
Set the owner of the fragment.
|
||
|
||
######Example
|
||
- owner => 'root'
|
||
|
||
#####`group`
|
||
Set the group of the fragment.
|
||
|
||
######Example
|
||
- group => 'root'
|
||
|
||
#####`backup`
|
||
Control the filebucket behavior for the fragment.
|
||
|
||
######Example
|
||
- backup => 'puppet'
|
||
|
||
### API _deprecations_
|
||
|
||
#### Since version `1.0.0`
|
||
|
||
##### `concat{}` `warn` parameter
|
||
|
||
```puppet
|
||
concat { '/tmp/file':
|
||
ensure => present,
|
||
warn => 'true', # generates stringified boolean value warning
|
||
}
|
||
```
|
||
|
||
Using stringified Boolean values as the `warn` parameter to `concat` is
|
||
deprecated, generates a catalog compile time warning, and will be silently
|
||
treated as the concatenated file header/warning message in a future release.
|
||
|
||
The following strings are considered a stringified Boolean value:
|
||
|
||
* `'true'`
|
||
* `'yes'`
|
||
* `'on'`
|
||
* `'false'`
|
||
* `'no'`
|
||
* `'off'`
|
||
|
||
Please migrate to using the Puppet DSL's native [Boolean data
|
||
type](http://docs.puppetlabs.com/puppet/3/reference/lang_datatypes.html#booleans).
|
||
|
||
##### `concat{}` `gnu` parameter
|
||
|
||
```puppet
|
||
concat { '/tmp/file':
|
||
ensure => present,
|
||
gnu => $foo, # generates deprecation warning
|
||
}
|
||
```
|
||
|
||
The `gnu` parameter to `concat` is deprecated, generates a catalog compile time
|
||
warning, and has no effect. This parameter will be removed in a future
|
||
release.
|
||
|
||
Note that this parameter was silently ignored in the `1.0.0` release.
|
||
|
||
##### `concat::fragment{}` `ensure` parameter
|
||
|
||
```puppet
|
||
concat::fragment { 'cpuinfo':
|
||
ensure => '/proc/cpuinfo', # generates deprecation warning
|
||
target => '/tmp/file',
|
||
}
|
||
```
|
||
|
||
Passing a value other than `'present'` or `'absent'` as the `ensure` parameter
|
||
to `concat::fragment` is deprecated and generates a catalog compile time
|
||
warning. The warning will become a catalog compilation failure in a future
|
||
release.
|
||
|
||
This type emulates the Puppet core `file` type's disfavored [`ensure`
|
||
semantics](http://docs.puppetlabs.com/references/latest/type.html#file-attribute-ensure)
|
||
of treating a file path as a directive to create a symlink. This feature is
|
||
problematic in several ways. It copies an API semantic of another type that is
|
||
both frowned upon and not generally well known. It's behavior may be
|
||
surprising in that the target concatenated file will not be a symlink nor is
|
||
there any common file system that has a concept of a section of a plain file
|
||
being symbolically linked to another file. Additionally, the behavior is
|
||
generally inconsistent with most Puppet types in that a missing source file
|
||
will be silently ignored.
|
||
|
||
If you want to use the content of a file as a fragment please use the `source`
|
||
parameter.
|
||
|
||
##### `concat::fragment{}` `mode/owner/group` parameters
|
||
|
||
```puppet
|
||
concat::fragment { 'foo':
|
||
target => '/tmp/file',
|
||
content => 'foo',
|
||
mode => $mode, # generates deprecation warning
|
||
owner => $owner, # generates deprecation warning
|
||
group => $group, # generates deprecation warning
|
||
}
|
||
```
|
||
|
||
The `mode` parameter to `concat::fragment` is deprecated, generates a catalog compile time warning, and has no effect.
|
||
|
||
The `owner` parameter to `concat::fragment` is deprecated, generates a catalog
|
||
compile time warning, and has no effect.
|
||
|
||
The `group` parameter to `concat::fragment` is deprecated, generates a catalog
|
||
compile time warning, and has no effect.
|
||
|
||
These parameters had no user visible effect in version `1.0.0` and will be
|
||
removed in a future release.
|
||
|
||
##### `concat::fragment{}` `backup` parameter
|
||
|
||
```puppet
|
||
concat::fragment { 'foo':
|
||
target => '/tmp/file',
|
||
content => 'foo',
|
||
backup => 'bar', # generates deprecation warning
|
||
}
|
||
```
|
||
|
||
The `backup` parameter to `concat::fragment` is deprecated, generates a catalog
|
||
compile time warning, and has no effect. It will be removed in a future
|
||
release.
|
||
|
||
In the `1.0.0` release this parameter controlled file bucketing of the file
|
||
fragment. Bucketting the fragment(s) is redundant with bucketting the final
|
||
concatenated file and this feature has been removed.
|
||
|
||
##### `class { 'concat::setup': }`
|
||
|
||
```puppet
|
||
include concat::setup # generates deprecation warning
|
||
|
||
class { 'concat::setup: } # generates deprecation warning
|
||
```
|
||
|
||
The `concat::setup` class is deprecated as a public API of this module and
|
||
should no longer be directly included in the manifest. This class may be
|
||
removed in a future release.
|
||
|
||
##### Parameter validation
|
||
|
||
While not an API depreciation, users should be aware that all public parameters
|
||
in this module are now validated for at least variable type. This may cause
|
||
validation errors in a manifest that was previously silently misbehaving.
|
||
|
||
##Limitations
|
||
|
||
This module has been tested on:
|
||
|
||
* RedHat Enterprise Linux (and Centos) 5/6
|
||
* Debian 6/7
|
||
* Ubuntu 12.04
|
||
|
||
Testing on other platforms has been light and cannot be guaranteed.
|
||
|
||
#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.
|
||
|
||
You can read the complete module contribution guide [on the Puppet Labs wiki.](http://projects.puppetlabs.com/projects/module-site/wiki/Module_contributing)
|
||
|
||
###Contributors
|
||
|
||
The list of contributors can be found at:
|
||
|
||
https://github.com/puppetlabs/puppetlabs-concat/graphs/contributors
|