1. Puppet and Cobbler for the configuration of multiple grid sites
Emir Imamagić University Computing Centre (Srce)
Zagreb
Croatia

2. Overview CRO NGI Grid Management Experiences Cobbler Puppet Deployment
Conclusions
References

3. CRO NGI Croatian National Grid Infrastructure
Provides computing and data resources to A&R community
Permanently funded service since 2007.

4. CRO NGI

5. Grid Management Experiences
Cluster middleware
OSCAR
Issues
image based
easy deployment of software without packages
reinstallation/major upgrade nightmares
difficult tracking of worker nodes status (c3 tools)
not convenient for service nodes
not so actively developed

6. Grid Management Experiences
Grid middleware
Globus Toolkit, CREAM, BDII, SRM
home-made packages, scripts, Yaim
Issues
home-made packages got stale
scripts broken with component updates

7. Cobbler Bare metal and VM provisioning Package based
Enables definition of different profiles
Managed by Puppet
module for definition of all cobbler components
definition of machines in one system

8. Puppet Configuration management Module sources OS configuration
services management
Module sources
from Puppet forge & other places
modified existing modules
modules developed from scratch

9. Puppet Modules for cluster and grid services
File systems (FhGFS, Gluster, Gfarm)
Batching systems (Gridengine, HTCondor)
Monitoring systems (Ganglia, Zabbix)
Globus Toolkit (GRAM, GridFTP)
UMD services – unfortunately Yaim-based

10. Deployment Central management server Cluster frontends
Cobbler for service nodes
Puppet for all nodes
Cluster frontends
Cobbler for nodes on private networks

11. Conclusions Cobbler & Puppet
“easy” (re)installation and management of service and worker nodes
actively developed and widely used
Additional modules developed for grid services
planning to extend for new grid/cloud services

12. References CRO NGI Puppet modules Cobbler Puppet module
Puppet modules
Cobbler Puppet module
managed by Jakov Sosic