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# Copyright (c) 2008 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# BootEnvironment::Preboot.pm
# - provides general preboot implementation of the BootEnvironment API.
# -----------------------------------------------------------------------------
package OpenSLX::BootEnvironment::Preboot;
use strict;
use warnings;
use base qw(OpenSLX::BootEnvironment::Base);
use Clone qw(clone);
use File::Basename;
use File::Path;
use OpenSLX::Basics;
use OpenSLX::ConfigDB qw(:support);
use OpenSLX::Utils;
sub initialize
{
my $self = shift;
my $params = shift;
return if !$self->SUPER::initialize($params);
$self->{'original-path'} = "$openslxConfig{'public-path'}/preboot";
$self->{'target-path'} = "$openslxConfig{'public-path'}/preboot.new";
$self->{'requires-default-client-config'} = 0;
# we do not need a default.tgz since there's always an explicit client
if (!$self->{'dry-run'}) {
mkpath([$self->{'original-path'}]);
rmtree($self->{'target-path'});
mkpath("$self->{'target-path'}/client-config");
}
return 1;
}
sub writeBootloaderMenuFor
{
my $self = shift;
my $client = shift;
my $externalClientID = shift;
my $systemInfos = shift || [];
$self->_prepareBootloaderConfigFolder()
unless $self->{preparedBootloaderConfigFolder};
my $prebootSystemInfo
= clone($self->_pickSystemWithNewestKernel($systemInfos));
$self->_createImages($client, $prebootSystemInfo);
my $externalClientName = externalConfigNameForClient($client);
my $bootloaderPath = "$self->{'target-path'}/bootloader";
my $bootloaderConfigPath = "$bootloaderPath/$externalClientName";
mkpath($bootloaderConfigPath) unless $self->{'dry-run'};
my $menuFile = "$bootloaderConfigPath/bootmenu.dialog";
my $clientAppend = $client->{attrs}->{kernel_params_client} || '';
vlog(1, _tr("writing bootmenu %s", $menuFile));
# set label for each system
foreach my $info (@$systemInfos) {
my $label = $info->{label} || '';
if (!length($label) || $label eq $info->{name}) {
$label = $info->{name};
}
$info->{label} = $label;
}
my $bootmenuEntries = '';
my $entryState = 'on';
my $counter = 1;
foreach my $info (sort { $a->{label} cmp $b->{label} } @$systemInfos) {
my $vendorOSName = $info->{'vendor-os'}->{name};
my $kernelName = basename($info->{'kernel-file'});
my $append = $info->{attrs}->{kernel_params} || '';
$append .= " $clientAppend";
$bootmenuEntries .= qq{ "$counter" "$info->{label}" };
$entryState = 'off';
# create a file containing the boot-configuration for this system
my $systemDescr = unshiftHereDoc(<<" End-of-Here");
label="$info->{label}"
kernel="$vendorOSName/$kernelName"
initramfs="$vendorOSName/$info->{'initramfs-name'}"
append="$append"
End-of-Here
my $systemFile = "$bootloaderConfigPath/$info->{name}";
spitFile(
$systemFile, $systemDescr, { 'io-layer' => 'encoding(iso8859-1)' }
) unless $self->{'dry-run'};
slxsystem(qq{ln -sf $info->{name} $bootloaderConfigPath/$counter});
$counter++;
}
my $entryCount = @$systemInfos;
my $bootmenu = unshiftHereDoc(<<" End-of-Here");
--no-cancel --menu "OpenSLX Boot Menu" 20 65 $entryCount $bootmenuEntries
End-of-Here
if (!$self->{'dry-run'}) {
# default to iso encoding, let's see how uclibc copes with it ...
spitFile($menuFile, $bootmenu, { 'io-layer' => 'encoding(iso8859-1)' });
# copy the preboot script into the folder to be tared
my $prebootBasePath
= "$openslxConfig{'base-path'}/share/boot-env/preboot";
slxsystem(qq{cp $prebootBasePath/preboot.sh $bootloaderConfigPath/});
slxsystem(qq{cp -r $prebootBasePath/preboot-scripts $bootloaderConfigPath/});
slxsystem(qq{chmod a+x $bootloaderConfigPath/preboot.sh});
# create a tar which can/will be downloaded by prebooting clients
my $tarCMD
= qq{cd $bootloaderConfigPath; tar -czf "${bootloaderConfigPath}.env" *};
slxsystem($tarCMD);
rmtree($bootloaderConfigPath);
}
return 1;
}
sub _createImages
{
my $self = shift;
my $client = shift;
my $info = shift;
my %mediaMap = (
'cd' => 'CD',
);
my $prebootMedia = $client->{attrs}->{preboot_media} || '';
if (!$prebootMedia) {
warn _tr(
"no preboot-media defined for client %s, no images will be generated!",
$client->{name}
);
return 0;
}
foreach my $mediumName (split m{, }, $prebootMedia) {
my $moduleName = $mediaMap{$mediumName}
or die _tr(
"'%s' is not one of the supported preboot-medias (cd)",
$mediumName
);
my $prebootMedium = instantiateClass(
"OpenSLX::BootEnvironment::Preboot::$moduleName"
);
$prebootMedium->initialize($self);
$prebootMedium->createImage($client, $info);
}
return 1;
}
sub _prepareBootloaderConfigFolder
{
my $self = shift;
my $bootloaderPath = "$self->{'target-path'}/bootloader";
if (!$self->{'dry-run'}) {
rmtree($bootloaderPath);
mkpath($bootloaderPath);
}
$self->{preparedBootloaderConfigFolder} = 1;
return 1;
}
sub _pickSystemWithNewestKernel
{
my $self = shift;
my $systemInfos = shift;
my $systemWithNewestKernel;
my $newestKernelFileSortKey = '';
foreach my $system (@$systemInfos) {
next unless $system->{'kernel-file'} =~ m{
(?:vmlinuz|x86)-(\d+)\.(\d+)\.(\d+)(?:\.(\d+))?-(\d+(?:\.\d+)?)
}x;
my $sortKey
= sprintf("%02d.%02d.%02d.%02d-%2.1f", $1, $2, $3, $4||0, $5);
if ($newestKernelFileSortKey lt $sortKey) {
$systemWithNewestKernel = $system;
$newestKernelFileSortKey = $sortKey;
}
}
if (!defined $systemWithNewestKernel) {
die _tr("unable to pick a system to be used for preboot!");
}
return $systemWithNewestKernel;
}
1;
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