hiera_redis
A Hiera 5 backend for Redis with HASH type checking into redis key data
Version information
released Jul 19th 2022
This version is compatible with:
- Puppet Enterprise 2019.8.x, 2019.7.x, 2019.5.x, 2019.4.x, 2019.3.x, 2019.2.x, 2019.1.x, 2019.0.x, 2018.1.x, 2017.3.x, 2017.2.x, 2017.1.x, 2016.5.x, 2016.4.x
- Puppet >= 4.7.0 < 7.0.0
- , , , , ,
Start using this module
Add this module to your Puppetfile:
mod 'mrnobody-hiera_redis', '0.3.0'Learn more about managing modules with a PuppetfileDocumentation
mrnobody/hiera_redis — version 0.3.0 Jul 19th 2022
hiera_redis
Table of Contents
- Description
- Setup - The basics of getting started with hiera_redis
- Usage - Configuration options and additional functionality
- Limitations - OS compatibility, etc.
- Development - Guide for contributing to the module
- Credits - credits to developers
Description
This module provides a Hiera 5 backend for Redis.
With support recieve from redis hash instead String only. JSON requered for this module.
Also support interpolate results from redis - patterns in result like %{hiera('somekey')} or %{lookup('somekey')} will be replaced to somekey value from Hiera.
Setup
Setup Requirements
The backend requires the redis gem installed in the Puppet Server JRuby. It can be installed with:
/opt/puppetlabs/bin/puppetserver gem install redis
It is also recommended to install the gem into the agent's Ruby:
/opt/puppetlabs/puppet/bin/gem install redis
This allows commands such as puppet apply or puppet lookup to use the backend.
Also need to install json gem
Beginning with hiera_redis
If Redis is running on the Puppet master with the default settings, specifying the lookup_key as 'redis_lookup_key' is sufficient, for example:
---
version: 5
hierarchy:
- name: hiera_redis
lookup_key: redis_lookup_key
Usage
By default, the backend will query Redis with the key provided.
It is also possible to query multiple scopes such as with the YAML backend, where the expected key in Redis is composed of the scope and the key separated by a character (default is :). For example, the following can be used:
---
version: 5
hierarchy:
- name: hiera_redis
lookup_key: redis_lookup_key
options:
confine_to_keys:
- '^redis_.*'
- '^myapp_.*'
- '^ssh_group$'
scopes:
- "osfamily/%{facts.os.family}"
- common
The backend then expects keys of a format such as common:foo::bar for a lookup of 'foo::bar'.
The other options available include:
host: The host that Redis is located on. Defaults to 'localhost'.port: The port that Redis is running on. Defaults to 6379.socket: Optional Unix socket pathpassword: Optional Redis passworddb: The database number to query on the Redis instance. Defaults to 0.scope: The scope to use when querying the database.scopes: An array of scopes to query. Cannot be used in conjunction with thescopeoption.separator: The character separator between the scope and key being queried. Defaults to ':'.confine_to_keys: Only use this backend if the key matches one of the regexes in the array.connect_timeout: connect timeout to redis, seconds. Default 0.5read_timeout: read timeout for redis, seconds. Default 0.5write_timeout: write timeout for redis, seconds. Default 0.5
confine_to_keys config example:
confine_to_keys:
- "application.*"
- "apache::.*"
Limitations
Tested partly for puppet5, use for you own risk.
Credits
This repository was initially a fork from maxadamo hiera_redis repo, forked for add some fix.
The code to related to add supporting of getting hashes also from hiera redis storage. For now if in recieved result from redis we have "{" and "}" symvols, we will change type of result as HASH and puppet will be use result from redis as hash.
Changelog
All notable changes to this project will be documented in this file.
Release 0.3.0
Bugfixes
- Added
redis.close()action for closing redis connection, without this, we probably will have issues with free TCP sockets on puppetserver
Features
- Added timeouts to redis connections, also added options to configure it, see more in README. by default all timeouts 0.5 seconds(read,write,connect).
Release 0.2.0
Bugfixes
- If we will find
{and}in result from redis, we will need to make it hash - this part always recieve{}e.g. empty hash. - For now we use json for make hash from string, if it is posable - Interpolation not working - for now if result from redis has some what puppet can interpolate(get value from hiera), e.g. some like
%{hiera('somekey')}, it is will be replaced bysomekeyvalue
Release 0.1.0
Features
- added condition for detect hash in data into redis key and change result type to HASH type for puppet.
Bugfixes
Known Issues
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