- Overview
- Setup - The basics of getting started with extlib
- Usage - Configuration options and additional functionality
- Limitations - OS compatibility, etc.
- Development - Guide for contributing to the module
This module provides functions that are out of scope for stdlib. Some of them are even intrinsically tied to stdlib.
% puppet module install puppet-extlib- Type: rvalue
Returns a deep-merged resource hash (hash of hashes).
$tcresource_defaults = {
ensure => 'present',
attributes => {
driverClassName => 'org.postgresql.Driver',
}
}
$tcresources = {
'app1:jdbc/db1' => {
attributes => {
url => 'jdbc:postgresql://localhost:5432/db1',
userpass => 'user1:pass1',
},
},
'app2:jdbc/db2' => {
attributes => {
url => 'jdbc:postgresql://localhost:5432/db2',
userpass => 'user2:pass2',
},
}
}When called as:
$result = resources_deep_merge($tcresources, $tcresource_defaults)will return:
{
'app1:jdbc/db1' => {
ensure => 'present',
attributes => {
url => 'jdbc:postgresql://localhost:5432/db1',
userpass => 'user1:pass1',
driverClassName => 'org.postgresql.Driver',
},
},
'app2:jdbc/db2' => {
ensure => 'present',
attributes => {
url => 'jdbc:postgresql://localhost:5432/db2',
userpass => 'user2:pass2',
driverClassName => 'org.postgresql.Driver',
},
}
}This function outputs the variable content and its type to the debug log. It's similiar to the "notice" function but provides a better output format useful to trace variable types and values in the manifests.
# examples:
$v1 = 'test'
$v2 = ["1", "2", "3"]
$v3 = {"a"=>"1", "b"=>"2"}
$v4 = true
# $v5 is not defined
$v6 = { "b" => ["1","2","3"] }
$v7 = 12345
echo($v1, 'My string')
echo($v2, 'My array')
echo($v3, 'My hash')
echo($v4, 'My boolean')
echo($v5, 'My undef')
echo($v6, 'My structure')
echo($v7) # no comment here
# debug log output:
# My string (String) "test"
# My array (Array) ["1", "2", "3"]
# My hash (Hash) {"a"=>"1", "b"=>"2"}
# My boolean (TrueClass) true
# My undef (String) ""
# My structure (Hash) {"b"=>["1", "2", "3"]}
# (String) "12345"Retrieves data from a cache file, or creates it with supplied data if the file
doesn't exist. Useful for having data that's randomly generated once on the
master side (e.g. a password), but then stays the same on subsequent runs. The
cache_data takes three parameters:
- namespace: the folder under Puppet's vardir that the data is placed (e.g. mysql becomes /var/lib/puppet/mysql)
- data_name: the filename to store the data as (e.g. mysql_password becomes /var/lib/puppet/mysql/mysql_password)
- initial_data: the data to store and cache in the data_name file
class mymodule::params {
$password = cache_data('mysql', 'mysql_password', 'this_is_my_password')
}Returns a string of arbitrary length that contains randomly selected characters.
Prototype:
random_password(n)
Where n is a non-negative numeric value that denotes length of the desired password.
Given the following statements:
$a = 4
$b = 8
$c = 16
notice random_password($a)
notice random_password($b)
notice random_password($c)
The result will be as follows:
notice: Scope(Class[main]): fNDC
notice: Scope(Class[main]): KcKDLrjR
notice: Scope(Class[main]): FtvfvkS9j9wXLsd6
Takes an optional content and an optional template name and returns the contents of a file.
$config_file_content = default_content($file_content, $template_location)
file { '/tmp/x':
ensure => 'file',
content => $config_file_content,
}This module requires puppetlabs-stdlib >=3.2.1, which is when deep_merge()
was introduced.
We highly welcome new contributions to this module, especially those that include documentation, and rspec tests ;) but will happily guide you through the process, so, yes, please submit that pull request!
This module uses blacksmith for releasing and rspec for tests.
To release a new version please make sure tests pass! Then,
% rake travis_releaseThis will tag the current state under the version number described in
metadata.json, and then bump the version there so we're ready for the next
iteration. Finally it will git push --tags so travis can pick it up and
release it to the forge!
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent