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added -e flag to keep flexibility of ddns updating dns records to external dns server based on /etc/resolv.conf. Also default to use localhost as the dns server.

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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@11631 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
sjing
2012-02-20 04:26:38 +00:00
parent 0f4b3e15c9
commit 47284337f0
1 changed files with 27 additions and 54 deletions
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81
xCAT-server/lib/xcat/plugins/ddns.pm
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@@ -204,6 +204,7 @@ sub process_request {
my $zapfiles;
my $help;
my $deletemode=0;
my $external=0;
if ($request->{arg}) {
$hadargs=1;
@ARGV=@{$request->{arg}};
@@ -214,6 +215,7 @@ sub process_request {
'a|all' => \$allnodes,
'n|new' => \$zapfiles,
'd|delete' => \$deletemode,
'e|external' => \$external,
'h|help' => \$help,
)) {
#xCAT::SvrUtils::sendmsg([1,"TODO: makedns Usage message"], $callback);
@@ -243,61 +245,26 @@ sub process_request {
return;
}
$ctx->{domain} = $stab->{value};
# get site.master
# check to see if /etc/resolv.conf has nameserver=site.master, if no
# put out a warning
my $master = $sitetab->getAttribs({key=>'master'},['value']);
unless ($master and $master->{value}) {
xCAT::SvrUtils::sendmsg([1,"master not defined in site table"], $callback);
return;
}
my $resolv="/etc/resolv.conf";
my $found=0;
# check if nameserver site.master in /etc/resolv.conf
my $nameserver=$master->{value};
my $cmd="grep $nameserver $resolv";
my @output=xCAT::Utils->runcmd($cmd, 0);
if ($::RUNCMD_RC != 0)
{
$found=0;
} else { # if it is there check it is a nameserver
foreach my $line (@output) {
if ($line =~ /^nameserver/) { # line is a nameserver line
$found=1;
last;
}
}
}
if ($found == 0) { # not nameserver master found
xCAT::SvrUtils::sendmsg([0,"Warning:The management node is not defined as a nameserver in /etc/resolv.conf. Add \"nameserver $nameserver\" to /etc/resolv.conf and run makedns again."], $callback);
}
# chk if search site.domain or domain site.domain on AIX in /etc/resolv.conf
$found=0;
my $domain=$ctx->{domain};
my $cmd="grep $domain $resolv";
my @output=xCAT::Utils->runcmd($cmd, 0);
if ($::RUNCMD_RC != 0)
if($external) #need to check if /etc/resolv.conf existing
{
$found=0;
} else { # if it is there check it is a search clause
foreach my $line (@output) {
if ($line =~ /^search/) { # line is a search line
$found=1;
last;
my $resolv = "/etc/resolv.conf";
my $cmd = "egrep '^nameserver|^search' $resolv";
my $acmd = "egrep '^nameserver|^domain' $resolv";
if (xCAT::Utils->isAIX())
{
$cmd = $acmd;
}
# if AIX could be a domain line
if (xCAT::Utils->isAIX()) {
if ($line =~ /^domain/) {
$found=1;
last;
}
my @output=xCAT::Utils->runcmd($cmd, 0);
if ($::RUNCMD_RC != 0)
{
xCAT::SvrUtils::sendmsg([1,"You are using -e flag to update DNS records to an external DNS server, please ensure /etc/resolv.conf existing and pointed to this external DNS server."], $callback);
return;
}
}
}
if ($found == 0) { # no search site.domain found
xCAT::SvrUtils::sendmsg([0,"Warning:The domain is not defined in a search path or domain path for AIX (in /etc/resolv.conf. Add \"search $domain\" to /etc/resolv.conf and run makedns again."], $callback);
}
# check for selinux disabled
my $rc=xCAT::Utils->isSELINUX();
if ($rc == 0)
@@ -305,7 +272,6 @@ sub process_request {
xCAT::SvrUtils::sendmsg([0,"Warning:SELINUX is not disabled. The makedns command will not be able to generate a complete DNS setup. Disable SELINUX and run the command again."], $callback);
}
my $networkstab = xCAT::Table->new('networks',-create=>0);
unless ($networkstab) { xCAT::SvrUtils::sendmsg([1,'Unable to enumerate networks, try to run makenetworks'], $callback); }
@@ -524,7 +490,14 @@ sub process_request {
}
}
#now we stick to Net::DNS style updates, with TSIG if possible. TODO: kerberized (i.e. Windows) DNS server support, maybe needing to use nsupdate -g....
$ctx->{resolver} = Net::DNS::Resolver->new();
if ($external)
{
$ctx->{resolver} = Net::DNS::Resolver->new(); # based on /etc/resolv.conf
}
else
{
$ctx->{resolver} = Net::DNS::Resolver->new(nameservers=>['127.0.0.1']); # default to localhost
}
add_or_delete_records($ctx);
xCAT::SvrUtils::sendmsg("DNS setup is completed", $callback);
}
@@ -1113,8 +1086,8 @@ sub makedns_usage
"\n makedns - sets up domain name services (DNS).";
push @{$rsp->{data}}, " Usage: ";
push @{$rsp->{data}}, "\tmakedns [-h|--help ]";
push @{$rsp->{data}}, "\tmakedns [-n|--new ] [noderange]";
push @{$rsp->{data}}, "\tmakedns [-d|--delete noderange]";
push @{$rsp->{data}}, "\tmakedns [-e|--external] [-n|--new ] [noderange]";
push @{$rsp->{data}}, "\tmakedns [-e|--external] [-d|--delete noderange]";
push @{$rsp->{data}}, "\n";
xCAT::MsgUtils->message("I", $rsp, $callback);
return 0;