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LCG/EGEE Installation J. A. Templon Undecided (NIKHEF)

Learn about the installation problem faced in large-scale node configuration and how LCFGng is providing a current solution. Explore the benefits and assessment of this solution, and discover the potential of Quattor for configuration management.

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LCG/EGEE Installation J. A. Templon Undecided (NIKHEF)

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  1. LCG/EGEE InstallationJ. A. TemplonUndecided (NIKHEF) NROC Meeting, Amsterdam, 28 October 2004 www.eu-egee.org EGEE is a project funded by the European Union under contract IST-2003-508833

  2. Contents • The Installation Problem • The Current Solution (LCFGng) • (LCFGng)ng == Quattor • How to proceed NROC Meeting, 28 October 2004 - 2

  3. The Installation Problem • Installation of large numbers of nodes • Configuration of large numbers of nodes • Interchangeability of node functions (or even identities) • Configuration management • Allow for site customizations NROC Meeting, 28 October 2004 - 3

  4. Or in pictures Config & Install Server Grid site Worker nodes ce ? se Software Repository NROC Meeting, 28 October 2004 - 4

  5. Current Solution: LCFGng • Configuration is a CPP macro #define HOSTNAME node16-32 #define SITE_LOCALDOMAIN farmnet.nikhef.nl #include "local/site-config-lcgprod.h" #include "local/nikhef-sys-core.h" #include "local/nikhef-sys-hw-amdncf.h" #include "local/nikhef-sys-disk-generic.h" #include "local/nikhef-fs-autofs.h" #include "local/nikhef-auth-lusers.h" #include "lcgprod/WorkerNode-cfg.h" #include "local/nikhef-postconfig-lcgprod.h" #ifdef SYS_LMSENSORS_SUPPORT EXTRA(cron.additions) gangliatemp cron.add_gangliatemp * * * * * /path/prog arg1 arg2 arg3 #endif +updaterpms.rpmcfg rpmlist-wnlcgprod NROC Meeting, 28 October 2004 - 5

  6. LCFGng cont’d #include "lcgprod/WN-rpm" #include "nikhef-local-rpm.h" -edg-pbs-utils-1.0.7-1 -openpbs-*-* -openpbs-server-*-* -openpbs-sched-*-* -openpbs-mom-*-* +edg-pbs-utils-1.0.7-1 +torque-common-1.0.1p6-ttd5 +torque-mom-1.0.1p6-ttd5 NROC Meeting, 28 October 2004 - 6

  7. Sequence of LCFGng • Node boots under dhcp -> hostname + profile • Bootstraps enough to get ‘rpm’ object (deals with RPMs) and installs rpm list • Reboots and does configs • Config changes are applied when profile changes NROC Meeting, 28 October 2004 - 7

  8. Assessment • Installation of large numbers of nodes • Configuration of large numbers of nodes • Interchangeability of node functions (or even identities) • Configuration management • Allow for site customizations NROC Meeting, 28 October 2004 - 8

  9. Quattor • Structured Configuration Database • Structured Software Repository • Management Tools for Each • Configuration “components” for various functionality • Compiler for configuration profiles (handles dependencies) • Automatic Install System integrated with dhcp NROC Meeting, 28 October 2004 - 9

  10. Configuration Database [INFO] Subtree: /software/components/aii/osinstall +-osinstall +-options $ cdb : (string) 'trog.nikhef.nl' $ confserver : (string) 'trog.nikhef.nl/' $ distserver : (string) 'www.dutchgrid.nl/linux/7.3/en/os/i386/' $ firewall : (string) '--disabled' $ rootpw : (string) '$1$aRNMtjV30' $ template : (string) 'rh73_ks_pizza0.conf' [INFO] Subtree: /system/network +-network $ domainname : (string) 'nikhef.nl' $ hostname : (string) 'tbn03' +-interfaces +-eth0 $ broadcast : (string) '192.16.186.255' $ gateway : (string) '192.16.186.254' $ ip : (string) '192.16.186.228' NROC Meeting, 28 October 2004 - 10

  11. SW Repository Management trog:~> edg-swrep-client listplatforms Available platforms: test_jeff i386_rh73 trog:~> edg-swrep-client listareas i386_rh73 Available areas for platform i386_rh73: /base 0 /quattor 39 /updates 0 trog:~> edg-swrep-client list i386_rh73 Platform i386_rh73 contents: aii-1.0.2-1.noarch.rpm /quattor aii-client-1.0.2-1.noarch.rpm /quattor cdb-cli-1.8.4-1.noarch.rpm /quattor cdb-simple-cli-1.0.6-1.noarch.rpm /quattor NROC Meeting, 28 October 2004 - 11

  12. Architecture NROC Meeting, 28 October 2004 - 12

  13. Assessment • Installation of large numbers of nodes (looks promising) • Configuration of large numbers of nodes (looks promising) • Interchangeability of node functions (looks promising) • Configuration management • Allow for site customizations NROC Meeting, 28 October 2004 - 13

  14. How to Proceed • LCG-2 profiles for Quattor exist (C. Loomis) • Quattor support materializing in GDB • Community action to develop, share, and support tools • NIKHEF is developing Quattor install for two systems (P4 Cert TB of VL-E and EGEE PPS) NROC Meeting, 28 October 2004 - 14

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