Dienstag, 1. April 2014

SALT/Subversion Backend

This post is about configuring SALT Stacks subversion backend. Salt itself provides some information on its website, but its not obvious how it works in detail. I'm running my salt-master on an Ubuntu 12.0.4 LTS version, the salt-master (at time of writing in version 2014.1.0-1precise1) package has been downloaded from Launchpad PPA.

In order to use subversion (or other version control backends), it is necessary to edit the salt masters configuration file - in /etc/salt/master. There are already some commented sections for gitfs_remotes, but none for mercurial or subversion. However, the principle behind the configuration/backends is the same. In the following we assume that our salt configuration space is hosted under http://svn.example.com/sourcecode/salt/. Below that directory we have a typical subversion project structure - that means trunk, branches, tags. Salt assumes that the base environment is below trunk, all other environments are derived from the subdirectories in branches and tags.

svnfs_remotes:  - https://svn.example.com/sourcecode/salt
  - trunk: trunk
  - branches: branches
  - tags: tags

After adding this to your salt masters configuration andy after restarting the daemon, you will most likely find the following error message in your salt error log file (/var/log/salt/master.log).

2014-04-01 12:56:39,007 [salt.loaded.int.fileserver.svnfs][ERROR   ] subversion fileserver backend is enabled in configuration but could not be loaded, is pysvn installed?
This can be solved by adding python-svn package (apt-get install python-svn).
That's it, the configuration space is now visible to your salt-minions.

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