lookup_http

Description

This is a library intended to be used by data lookup tools and allows lookup to be sourced from HTTP queries. The intent is to make this backend adaptable to allow you to query any data stored in systems with a RESTful API such as CouchDB or even a custom store with a web front-end

History

Most of this code was previously incorporated inside hiera-http, we decided to split off the HTTP functionality into a standalone library - the main intention for this was to be able to write a HTTP data source for Jerakia without re-inventing the wheel.

Usage

lookup = LookupHttp.new(opts)
result = lookup.get_parsed(path)

The following are configuration parameters that can be passed to LookupHttp.new

:output: : Specify what handler to use for the output of the request. Currently supported outputs are plain, which will just return the whole document, or YAML and JSON which parse the data and try to look up the key

:http_connect_timeout: : Timeout in seconds for the HTTP connect (default 10)

:http_read_timeout: : Timeout in seconds for waiting for a HTTP response (default 10)

:failure: : When set to graceful will stop hiera-http from throwing an exception in the event of a connection error, timeout or invalid HTTP response and move on. Without this option set hiera-http will throw an exception in such circumstances

:ignore_404: : If failure is not set to graceful then any error code received from the HTTP response will throw an exception. This option makes 404 responses exempt from exceptions. This is useful if you expect to get 404's for data items not in a certain part of the hierarchy and need to fall back to the next level in the hierarchy, but you still want to bomb out on other errors.

:use_ssl:: When set to true, enable SSL (default: false)

:ssl_ca_cert: Specify a CA cert for use with SSL

:ssl_cert: Specify location of SSL certificate

:ssl_key: Specify location of SSL key

:ssl_verify: Specify whether to verify SSL certificates (default: true)

:use_auth:: When set to true, enable basic auth (default: false)

:auth_user:: The user for basic auth

:auth_pass:: The password for basic auth

:headers:: Hash of headers to send in the request

TODO

Theres a few things still on my list that I'm going to be adding, including

• Add HTTP basic auth support
• Add proxy support
• Add further handlers (eg: XML)

Author

• Craig Dunn [email protected]
• @crayfishX
• IRC (freenode) crayfishx
• http://www.craigdunn.org

Contributors

• SSL components contributed from Ben Ford [email protected]
• Louis Jencka
• Jun Wu

Change Log

1.0.0

• Released as independant library

Historical Change Log (hiera-http)

The following changelog applied to the hiera-http 1.x series, before it was ported to lookup-http

1.4.0

• Confine keys feature to restrct when the backend is used
• Bug fixes
• Documentation updates

1.3.1

• Bugfix release for ruby 1.8.7 support

1.3.0

• Added lookup caching features

1.2.0

• Support for SSL verify options
• Support for HTTP auth

1.0.1

• 1.0 release
• Support for ignoring 404's when failure is not set to graceful

0.1.0

• Stable
• Puppet Forge release

0.0.2

• Added SSL support

0.0.1

• Initial release