Posted tagged ‘lcfg’

Testing the new LCFG core : Part 1

May 17, 2017

The project to rework the core LCFG code is rattling along and has reached the point where some full scale testing is needed. The first step is to check whether the new XML parser can actually just parse all of our LCFG profiles. At this stage I’m not interested in whether it can do anything […]

LCFG Core Project

May 2, 2017

Over the last few years I have been working on (and off) creating a new set of “core” libraries for LCFG. This is now finally edging towards the point of completion with most of the remaining work being related to polishing, testing and documentation. This project originated from the need to remove dependencies on obsolete […]

LCFG Client: Hasn’t died yet…

August 2, 2016

Coming back from holiday I was pleased to see that I have a v4 client instance which has now been running continuously for nearly 3 weeks without crashing. It hasn’t done a massive amount in that time but it has correctly applied some updates to both resources and packages. In the time I’ve not been […]

LCFG Client: It lives!

July 15, 2016

Cue forked lightning and crashes of thunder… After much effort I finally have the first functional installation of the v4 LCFG client. This sees all the XML parsing and profile handling moved over to the new LCFG::Profile Perl modules which are wrappers around the new lcfg-core suite of libraries. There is still a bit of […]

LCFG Profile – Secure mode

May 19, 2016

The LCFG client has a, slightly weird, feature called “secure mode“. This makes the client hold off applying any resource changes until they have been manually reviewed. The manual checking is done by examining the contents of a “hold file” which shows the differences in values for each modified resource in a simple text form. […]

LCFG profile querying

May 13, 2016

The new LCFG profile framework makes it simple to retrieve component and resource information from profiles stored in the various standard formats (XML, Berkeley DB and status files). Loading a profile from XML, DB or status directory: my $p = LCFG::Profile->new_from_xml(“example.xml”); my $p = LCFG::Profile->new_from_bdb(“example.db”); my $p = LCFG::Profile->new_from_status_dir(“/run/lcfg/status”); Loading a component from a DB […]

LCFG profile handling

May 13, 2016

Over the last few months the new libraries for handling LCFG profiles have been shaping up nicely. They are finally reaching a point where they match up with my original aims so I thought I’d give a taste of how it all works. Here’s an example of processing an LCFG XML profile into the Berkeley […]

LCFG::Component environment plugins

January 5, 2015

Version 1.13.0 the Perl version of the ngeneric framework (LCFG::Component) provides an all-new environment initialisation system for component methods. This has support for plugins which mean it is fully extensible. There is a new InitializeEnvironment method which is called for most standard methods which are accessible via om (including configure, start, restart, stop, run, and […]

LCFG::Build::Skeleton changes

December 8, 2014

At the LCFG Annual Review meeting held last week one topic which was discussed was the idea of all Perl based LCFG components being implemented as modules with the component script just being a very thin wrapper which loads the module and calls the dispatch method. This has been our recommended coding style for quite […]

LCFG authorization

December 3, 2014

The authorization of LCFG component methods (which are called using the om command) is typically done using the LCFG::Authorize module. This is limited to checking usernames and membership of groups managed in LCFG. In Informatics we have for a long-time used a different module – DICE::Authorize – which extends this to also checking membership of […]