FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Introduction to the tutorial for site managers Tony Calanducci INFN – Catania Third EELA Tutorial for Managers and Users Rio de Janeiro, June 2006

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Outline Layout of the site managers tutorial Available servers Shared pre-requisite for gLite 3.0 services

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Layout The installation, the configuration and the eventual troubleshooting of the gLite 3.0 services will be showed in real time by the tutors. After each service installation demonstration you will be able to re-install it by yourself –each couple of participants on its own assigned VM Due to the number of participants we are going to install gLite services onto VMware Virtual Machines –this will allow to have a bigger number of servers for testing –easy to resume the initial status of the VM for the following service re-installation (using the Snapshot manager feature of VMWare workstation) –useful if you need to re-try the installation due to errors/mistakes/tests

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Available servers 8 powerful servers have been installed locally to host 4 VMs each one (total 32 VMs) First 8 VMs (eelatut09-16.eela.if.ufrj.br) will be used by the tutors during their demonstrations eelatut17-40.eela.if.ufrj.br are available for the re- installation of the showed service. –Machine Number assignment to each couple of student –After the end of one re-installation session, tutors will resume VM status to the initial configuration One more server is available as gLite 3.0 repository to speed up the download of RPMs –gaia.if.ufrj.brlocal gLite 3.0 repository

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America 5 Access to the VMs Hostname : eelatutXX.eela.if.ufjr.br owhere XX in [17-40] Username : root Passwd: eelatut VMachines installed by the tutors: – eelatut09: User Interface – eelatut10: VOMS Server, MyProxy Server – eelatut11: BDII Server – eelatut12: WMS+LB Server – eelatut13: CE+WN Server – eelatut14: SE DPM Server – eelatut15: FTS Server – eelatut16: R-GMA, AMGA Server 5

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America gLite 3.0 software pre-requisites

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Installation Pre-requisites Start from a fresh install of SLC 3.0.x Verify that apt is installed and properly configured: rpm -qa | grep apt Install apt if necessary: rpm -ivh 8.SL.cern.i386.rpmhttp://linuxsoft.cern.ch/cern/slc30X/i386/SL/RPMS/apt cnc6- 8.SL.cern.i386.rpm Java SDK is required to install almost any LCG/gLite grid service. Due to license issues, it is not found in the LCG repositories. So please download and install a release of Sun Java SDK >= 1.4.2_08 from – chmod +x j2sdk-1_4_2_10-linux-i586-rpm.bin –./j2sdk-1_4_2_10-linux-i586-rpm.bin – rpm -ivh j2sdk-1_4_2_10-linux-i586.rpm – Preparing... ########################################### [100%] – 1:j2sdk ########################################### [100%]

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Security pre-requisites Request a X509 host certificate for the gLite service you are going to install from a Certification Autority (CA). For example, to get host certificates from the GILDA CA, go to: – Install host certificates (hostcert.pem and hostkey.pem) in /etc/grid-security. – chmod 644 hostcert.pem – chmod 400 hostkey.pem NB: you should find there already for you in the provided VMs

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America 9 If you plan to use certificates released by unsupported EGEE CA’s, be sure that their public key, signing policy and CRLs (usually distributed with an rpm) are installed in /etc/grid-security/certificates. – For the VO GILDA, the RPM is available from – N.B.: The GILDA gLite customized version that we are going to install include already both GILDA and EELA RPMs Install the VOMS public certificate for the supported VOs – For the VO GILDA, the RPM is available from noarch.rpm noarch.rpm – For the VO EELA, the RPM is available from 0_noarch.rpm Security pre-requisites (II)

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Node Syncronization with NTP Syncronization among all gLite nodes is mandatory. It can be achieved by the NTP protocol with a time server Install ntp if not already available for your system: – apt-get install ntp Add your time server in /etc/ntp.conf – restrict mask nomodify notrap noquery – server –(you can use ntp-1.infn.it – IP ) Edit /etc/ntp/step-tickers adding your(s) time server(s) hostname If you are running a firewall, you will have to allow inbound comminication on the NTP port: – -A INPUT -s -p udp --dport 123 -j ACCEPT Activate the ntpd service with the following commands:  ntpdate  service ntpd start  chkconfig ntpd on –You can check ntpd’s status with :  ntpq -p

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America YAIM Installation YAIM is a set of bash scripts used to install and easily configure the gLite middleware on the target machine Ensure you FQDN is properly set – hostname –f Find the latest YAIM and gilda_ig-yaim version at Download it using wget from – – Install using –rpm -ivh glite-yaim-latest.rpm –rpm -ivh gilda_ig-yaim xx.noarch.rpm

Madrid, EELA Kick-off Meeting, FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Site Configuration File All the configuration values to sites have to be configured in a site configuration file using key-value pairs. This file is shared among all the different gLite node types. So edit once and keep it in a safe place Create a copy of /opt/glite/yaim/examples/site-info.def template (coming from the lcg-yaim RPM) to your reference directory for the installation (e.g. /root): – cp /opt/glite/yaim/examples/gilda_ig-site-info.def /root/my-site-info.def The general syntax of the file is a sequence of bash-like assignments of variables ( =, no spaces are allowed around =). A good syntax test for your site configuration file is to try to source it manually running the command: – source my-site-info.def

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America Middleware installation with YAIM We are ready to install the services: /opt/glite/bin/gilda_ig_install_node /root/my-site- info.def GILDA_ig_myServiceName This command will download and install all the needed packages. Now we can configure the node: /opt/glite/bin/gilda_ig_configure_node /root/my- site-info.def GILDA_ig_myServiceName

Third EELA Tutorial, Rio de Janeiro, June 2006 FP6−2004−Infrastructures−6-SSA E-infrastructure shared between Europe and Latin America 14 Any questions? Thanks for the attention