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.. -*- mode: rst -*-
.. _server-snapshots-index:
===============
Bcfg2 Snapshots
===============
.. versionadded:: 1.0.0
This page describes the Snapshots plugin. Snapshots is deprecated, and
will be removed in a future release.
Before you begin
================
Make sure you have version 0.5 or greater of sqlalchemy.
On CentOS/RHEL 5
----------------
* Download a tarball of SQLAlchemy.
* Extract and build the RPM::
tar xzf SQLAlchemy-0.5.6.tar.gz
cd SQLAlchemy-0.5.6
python setup.py bdist_rpm
* Copy the RPM in ``SQLAlchemy-0.5.6/dist/`` to your Yum repository,
and rebuild the repository using ``createrepo``.
* Clear the Yum cache::
sudo yum clean all
* Install SQLAlchemy::
sudo yum install SQLAlchemy
* Manage the package in Bcfg2 as you would any other package.
Configuration
=============
* A database location needs to be added to ``bcfg2.conf``. Three drivers
are currently supported; mysql, postgres, and sqlite. When using the
sqlite driver, only the driver and database lines are required.
* For MySQL::
[snapshots]
driver = mysql
database = snapshots
user = snapshots
password = snapshots
host = dbserver
* For SQLite::
[snapshots]
driver = sqlite
database = /var/lib/bcfg2/var/snapshots.sqlite
* The database needs to be initialized.::
$ bcfg2-admin snapshots init
2009-03-22 21:40:24,683 INFO sqlalchemy.engine.base.Engine.0x...3e2c PRAGMA table_info("connkeyval")
PRAGMA table_info("connkeyval")
2009-03-22 21:40:24,684 INFO sqlalchemy.engine.base.Engine.0x...3e2c ()
()
2009-03-22 21:40:24,686 INFO sqlalchemy.engine.base.Engine.0x...3e2c PRAGMA table_info("package")
PRAGMA table_info("package")
2009-03-22 21:40:24,687 INFO sqlalchemy.engine.base.Engine.0x...3e2c ()
()
.....
COMMIT
* The Snapshots plugin needs to be enabled for the bcfg2-server (by adding
Snapshots to the plugins line in ``/etc/bcfg2.conf``). Once done,
this will cause the the server to store statistics information when
clients run.
Using the reports interface
===========================
All hosts::
$ bcfg2-admin snapshots reports -a
============= ========= ========================================== ============================
Client Correct Revision Time
============= ========= ========================================== ============================
bcfg2client True f46ac7773712bd3c3cfb765ae5d2a3b2a37ac9b7 2009-04-23 11:27:54.378941
============= ========= ========================================== ============================
List bad entries for a single host::
$ bcfg2-admin snapshots reports -b bcfg2client
Bad entries:
Package:nscd
Package:cupsys
File:/etc/ldap.conf
List extra entries for a single host::
$ bcfg2-admin snapshots reports -e bcfg2client
Extra entries:
Package:python-pyxattr
Package:librsync1
Package:python-pylibacl
Package:gcc-4.2-multilib
Package:nxlibs
Package:freenx-session-launcher
Package:dx-doc
Package:dirdiff
Package:libhdf4g
Package:nxclient
Package:freenx-rdp
Package:freenx-vnc
Package:libxml2-dev
Package:mysql-client
Package:mysql-client-5.0
Package:libxcompext3
Package:lib32gomp1
Package:dx
Package:freenx-media
Package:dxsamples
Package:gcc-multilib
Package:rdiff-backup
Package:libdbd-mysql-perl
Package:libxcomp3
Package:freenx-server
Package:smbfs
Package:planner
Package:nxagent
Package:libc6-dev-i386
Package:libfltk1.1-dev
Package:freenx
Package:libdx4
Package:libxcompshad3
Service:freenx-server
Detailed view of hosts for a particular date::
$ bcfg2-admin snapshots reports --date 2009 5 30
============= ========= ========================================== ============================
Client Correct Revision Time
============= ========= ========================================== ============================
bcfg2client False 10c1a12c62c57c0861cc453b8d2640c4839a7357 2009-05-29 10:52:34.701056
TODO/Wishlist
=============
* Identify per-client changes in correctness over time
* Detailed view for a particular date
* Track entry changes over time (glibc updated on these dates to these versions)
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