ItManagedCvmFs < LHCb

LHCb Web>LHCbComputing>ProjectRelease>ItManagedCvmFs (2012-03-14, MarcoCattaneo) (raw view)

---++ Preprequisites

To be able to connect to host cvmfs-lhcb, you need to be part of egroup  [[https://e-groups.cern.ch/e-groups/Egroup.do?egroupId=10020060][LxCvmfs-lhcb]].
Please note that all members of "lhcb-cvmfs-librarians" are automaticallly included in this egroup so normally no action is needed for release shifters to be able to connect.

---++ Software Installation

---+++ Connection to "shared" account on host "cvmfs-lhcb"

All installation of software is done on host "cvmfs-lhcb", under the account called "shared". 

So first connect to "cvmfs-lhcb":
<verbatim>
ssh yourusername@cvmfs-lhcb
</verbatim>

Then check that nobody else is connected to install software:

<verbatim>
$ pgrep -fl -u shared
$ sudo -i -u shared
</verbatim>

---+++ Software installation

   * Upload your changes using the scripts from the ${HOME}/bin directory:

     <verbatim>
          install_software.sh <Project> <version>
     </verbatim>

   * One you have done all the installs, you have to update the global catalog (needs to be done just once at the end, to publish everything that you have installed)
     <verbatim>cvmfs-update-client</verbatim>

Note that the various =install_software= and =cvmfs-update-client= commands can be chained by separating them with =;=

---++ Appendix

---+++ IT CVMFS Information

All information from IT Department can be found at https://twiki.cern.ch/twiki/bin/view/CvmFS/Installers

---+++ LHCB Software on cvmfs-lhcb

---+++ Scripts

All updates to software deployed on cvmfs should be done under account "shared".
"/home/shared/bin" contains the necessary scripts to add/remove software:

* *install_software.sh*: To call install_project to add new projects/versions
* *remove_software.sh*: To Remove software versions
* *cvmfs-update-client*: Synchronize the CVMFS file system

Some other scripts are also available (same name as above but prefixed with std_ perform the smae action without logging)

The output of those command is automatically logged to "/home/shared/logs/install.log

---+++ CRON

The local CRON is running on this host to automatically update SQLDDDB every hour.
The logs for this cron is in: /home/shared/logs/update_sqldddb.log

A backup of the CRONTAB is available in /home/shared/conf.crontab.backup











-- Main.BenjaminCouturier - 21-Feb-2012

Topic revision: r4 - 2012-03-14 - MarcoCattaneo

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