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corvo |
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#!/usr/bin/perl
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package GridInstall_help;
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use Cwd;
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use site_utils qw(&execSys);
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our (@ISA, @EXPORT, @EXPORT_OK);
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use Exporter;
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@ISA = qw(Exporter);
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@EXPORT_OK = qw(&help);
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sub help {
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my $option = shift or 'man';
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$helpStr = "
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=pod
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=head1 NAME
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B<" . $::exec . " > - (version 0.0.1).
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=head1 SYNOPSIS
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B<$::exec> [I<options>]
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=head1 DESCRIPTION
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I<". $::exec ."> is a Perl program intended to simplify the process
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of creation and submission of CMS software installation jobs.
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The program is able to generate scripts for different CMS
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software types (tar, DAR, RPM) and submit them to the a given site.
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This script is based on queries on LCG BDIIs, that is on LCG Information system. It asks a given site, or site set,
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for the published software tags (e.g. VO-cms-ORCA_8_6_0) and, according to the answer, performs the
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best action, either full \"from scratch\" installation, or a simple upgrade.
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Then it updates the site Information System with the latest installed software tag.
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Multiple software installations are supported. The core installation script is I<cmsi>.
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B<". $::exec . "> relies on a set of different perl fragments, which can be combined to perform the right installation
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according to the chosen software flavour.
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Once perl scripts and jdl files have been assembled, jobs are submitted to the target Computing Elements. Once landed on Worker Nodes
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the scripts check the environment, basically an anvironment variable called \$VO_CMS_SW_DIR where CMS software is supposed
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to be installed. Then I<cmsi> starts installing rpms.
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Finally the Information System is updated with the publishing of the new software tags.
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=head1 OPTIONS
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=over 4
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=item B<-i, --install> I< software name >
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Declares the software you want to install. It's possible to declare multiple software
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(e.g. --install \"ORCA_8_6_0 OSCAR_3_6_1\")
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=item B<-u, --uninstall> I< software name >
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Declares the software you want to uninstall.
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=item B<-t, --type> I< software type >
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Declares the kind of distribution you're going to install. Possible value are tar, dar and rpm.
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=item B<-s, --site > I<site>
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Declares where you would like to install the given software. It can be a full URL or a domain name, e.g.
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gridit001.pd.infn.it or infn.it.
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=item B<-l, --label> I< software tag >
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Defines the software tag you're going to publish on a site Information System. Conventionally CMS adopted:
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VO-cms-I< software name >
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=item B<-b, --bdii> I<bdii>
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Defines the BDII to retrieve sites' software tag. LCG has no hierarchical Information System, so one has to define
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\'a priori\' the BDII containing the choosen site to install. CMS has a official BDII, that is lxn1187.cern.ch. There's also
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a \'test zone\' BDII, lxn1189.cern.ch, containing sites which are not yet LCG certified.
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=item B<-o, --org> I< virtual organization>
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Your Virtual Organization. Default is \'cms\'. The script selects for installation only those sites belonging to the given VO.
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The user must have a valid grid certificate to be recognized by the information system.
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=back
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=head1 EXAMPLES
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$::exec --install ORCA_8_6_0 -t rpm --site pd.infn.it --label VO-cms-ORCA_8_6_0\n
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installs Orca, version 860 and rpm flavour, in Padova.
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$::exec --install ORCA_8_6_0 -t rpm --site fzk.de --label VO-cms-ORCA_8_6_0 --bdii lxn1189.cern.ch\n
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installs Orca, version 860 and rpm flavour, in FZK querying the \"test BDII\" at Cern.
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$::exec --install CMKIN_3_2_0 -t tar --site pd.infn.it --label VO-cms-CMKIN_3_2_0_dar\n
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installs CMKIN, version 320 and tar flavour, in Padova.
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$::exec --uninstall ORCA_8_2_0 -t rpm --site pd.infn.it --label VO-cms-ORCA_8_2_0\n
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uninstalls Orca from Padova and removes the software tag from the Information System.
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=head1 ENVIRONMENT
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If user wants to submit jobs in GRID, which is default, it is necessary
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to create a proxy certificate
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grid-proxy-init
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=cut";
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my $pod = getcwd() . '/CmsSwGridInstall.pod';
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open($fh, ">$pod");
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print ($fh $helpStr);
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close $fh;
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my $man = getcwd() . '/CmsSwGridInstall.man';
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my $pod2man = 'pod2man --center=" " --release=" " ' . $pod . ' > ' . $man;
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&execSys($pod2man);
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my $cmd = 'man '. $man;
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system($cmd);
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exit;
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}
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