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-First, broken step to try to use libvirt storage management.

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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@6635 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
jbjohnso
2010-07-01 21:03:00 +00:00
parent ddb52b5e48
commit ff332dc5f0
1 changed files with 69 additions and 1 deletions
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70
xCAT-server/lib/xcat/plugins/kvm.pm
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@@ -86,6 +86,74 @@ my %hyphash;
my $node;
my $vmtab;
sub build_pool_xml {
my $url = shift;
my $currpools = shift;
my %usedindexes; #sadly, because we can't create new mountpoints via libvirt, we'll just use a simple number
#and images will precreate maybe 1024 mountpoints
my $mntpoint;
my $pool;
foreach (@$currpools) {
$pool = XMLin($_->get_xml_description());
$mntpoint = $pool->{target}->{path};
$mntpoint =~ s/.*\///;
$usedindexes{$mntpoint}=1;
}
my $index=0;
while ($usedindexes{$index}) {
$index++;
}
my $host = $url;
$host =~ s/.*:\/\///;
$host =~ s/(\/.*)//;
my $srcpath = $1;
my $pooldesc = '<pool type="netfs">';
$pooldesc .= '<name>'.$url.'</name>';
$pooldesc .= '<source>';
$pooldesc .= '<host name="'.$host.'"/>';
$pooldesc .= '<dir path="'.$srcpath.'"/>';
$pooldesc .= '</source>';
$pooldesc .= '<target><path>/var/lib/xcat/pools/'.$index.'</path></target></pool>';
return $pooldesc;
}
sub get_filepath_by_url { #sadly, libvirt has opted for the 'enterprisey' way like another vendor
#and provided an api to overcomplicate a straightforward request
#using it to appease those who are anti-ssh
#sshing in and checkning mount ourselves would be more
#robust, flexible, and easier, but oh well
#wouldn't be as bad if it weren't for the fact that it also has to be
#micromanaged.. I.e. the meat of the issue (mountpints/filenames) still must
#be resolved, but we also are having to deal with an extra level of info
my $url = shift;
my $dev = shift;
my @currpools = $hypconn->list_storage_pools();
my $poolobj;
my $pool;
foreach my $poolo (@currpools) {
$poolobj = $poolo;
$pool = XMLin($poolobj->get_xml_description());
if ($pool->{name} eq $url) {
last;
}
$pool = undef;
}
unless ($pool) {
$poolobj = $hypconn->create_storage_pool(build_pool_xml($url,\@currpools));
$pool = XMLin($poolobj->get_xml_description());
}
#ok, now that we have the pool, we need the storage volume from the pool for the node/dev
my @volobjs = $poolobj->list_volumes();
my $desiredname = $host.$dev;
foreach (@volobjs) {
if ($_->get_name() eq $desiredname) {
return $_->get_path();
}
}
}
sub get_path_for_nfsuri {
my $diskname = shift;
$diskname =~ /nfs:\/\/([^\/]*)(\/.*)/;
@@ -185,7 +253,7 @@ sub build_diskstruct {
$diskhash->{type}='block';
$diskhash->{source}->{dev} = substr($disk_parts[0], 4);
} elsif ($disk_parts[0] =~ m/^nfs:\/\/(.*)$/) {
$diskhash->{source}->{file} = "/var/lib/xcat/vmnt/nfs_".$1."/$node/".$diskhash->{target}->{dev};
$diskhash->{source}->{file} = get_filepath_by_url($disk_parts[0],$diskhash->{target}->{dev}); #"/var/lib/xcat/vmnt/nfs_".$1."/$node/".$diskhash->{target}->{dev};
} else {
$diskhash->{source}->{file} = $disk_parts[0];
}