New in version 1.0.0.
This page describes the Snapshots plugin. This plugin is meant to replace the older Bcfg2 Dynamic Reporting System. It stores various aspects of a client’s state when the client checks into the server.
Make sure you have version 0.5 or greater of sqlalchemy.
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
sudo yum install SQLAlchemy
Manage the package in Bcfg2 as you would any other package.
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.
[snapshots] driver = mysql database = snapshots user = snapshots password = snapshots host = dbserver
[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.
$ 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