67 lines
2.3 KiB
Plaintext
67 lines
2.3 KiB
Plaintext
==================================
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`Tiramisu` - getting started
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==================================
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What is Configuration handling ?
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=================================
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Due to more and more available configuration options required to set up
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an operating system, it became quite annoying to hand the necessary
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options to where they are actually used and even more annoying to add
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new options. To circumvent these problems the configuration management
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was introduced.
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What is Tiramisu ?
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===================
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Tiramisu is yet another configuration handler, wich aims at producing
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flexible and fast configuration options access. The main advantages are
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its access `glossary#rules` and the fact that the configuration 's
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consistency is preserved at any time, see `glossary#consistency`.
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There are type and structures's validations for configuration options,
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and validations towards the whole configuration.
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Last but not least, configuration options can be reached and changed
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according to the access rules from nearly everywhere in the OS boxes,
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e.g. the containers via the `http/json` server.
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Just the facts
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==============
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.. _gettingtiramisu:
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Download
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---------
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To obtain a copy of the sources, check it out from the repository using
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`git`. We suggest using `git` if one wants to access the current development.
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::
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git clone git://git.labs.libre-entreprise.org/tiramisu.git
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This will get you a fresh checkout of the code repository in a local
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directory named ``tiramisu``.
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Understanding Tiramisu's architecture
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--------------------------------------
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The `glossary#schema` is loaded from an XML file, and the values of
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the configuration options are recovered from a `.ini` like file.
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By now, all the in-depth informations about the configuration are stored
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in a **single** object, the `config.Config()` object, wich is
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responsible of nearly everything. All the necessary options are stored
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into a configuration object, which is available nearly everywhere, so
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that adding new options becomes trivial.
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This `Config()` is available from everywhere with the help of an http server
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that serves configuration datas as `json` strings.
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.. figure:: architecture.png
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The basics of Tiramisu's architecture.
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Once loaded, http server serves the `config.Config()` object, that is,
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the configuration options and the configuration groups.
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