newnode.in 14.4 KB
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#!/usr/bin/perl -w

#
# EMULAB-COPYRIGHT
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# Copyright (c) 2003-2010 University of Utah and the Flux Group.
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# All rights reserved.
#

#
# newnode - a script for moving nodes from the new_ tables into production.
#

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use lib '@prefix@/lib';
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use libdb;
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use libtestbed;
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use libxmlrpc;
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use NodeType;
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use English;
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use OSinfo;
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use Getopt::Std;
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use EmulabFeatures;
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use strict;

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my $TB         = "@prefix@";
my $ELABINELAB = @ELABINELAB@;
my $RPCSERVER  = "@OUTERBOSS_NODENAME@";
my $RPCPORT    = "@OUTERBOSS_XMLRPCPORT@";
my $RPCCERT    = "@OUTERBOSS_SSLCERTNAME@";
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my $switchmac = "$TB/sbin/switchmac";
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my $os_load = "$TB/bin/os_load";
my $os_select = "$TB/bin/os_select";
my $newnode_reboot = "$TB/sbin/newnode_reboot";
my $named_setup = "$TB/sbin/named_setup";
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my $nalloc = "$TB/bin/nalloc";
my $nfree = "$TB/bin/nfree";
my $dhcpd_makeconf = "$TB/sbin/dhcpd_makeconf";
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my $exports_setup = "$TB/sbin/exports_setup";
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my $dhcpd_rc = "/usr/local/etc/rc.d/2.dhcpd.sh";

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my $feature = EmulabFeatures::Lookup("ScriptNewNodes");
my $useScriptFeature = defined($feature) && $feature->enabled();

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#
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# MFS to boot the nodes into initially
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#
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my $MFS_INITIAL = TB_OSID_FREEBSD_MFS();
my $OS_OPSNODE  = "OPSNODE-BSD";
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#
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# Initial event system state to put the nodes into
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#
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my $STATE_INITIAL = TBDB_NODESTATE_SHUTDOWN;
my $STATE_OPSNODE = TBDB_NODESTATE_ISUP;
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#
# Number of vnodes to create for each physical node
#
my $NUM_VNODES = 50;

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#
# Default number of vnodes that can be hosted on any pnode
#
my $DEFAULT_PCVM_COUNT = 20;

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#
# Experiments we might put nodes into
#
my $PID_HWDOWN = NODEDEAD_PID();
my $EID_HWDOWN = NODEDEAD_EID();
my $PID_OPSNODE = TBOPSPID();
my $EID_OPSNODE = "opsnodes";

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# Turn off line buffering on output
$| = 1;
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if (!TBAdmin()) {
    die "Sorry, only testbed administrators can run this script!\n";
}

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#
# Handle command-line options
#
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sub usage() {
    die "Usage: $0 [-f] <node_id> ...\n";
}
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my $noreboot = 0;
my $quiet    = 0;
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my $force_unconnected_interfaces = 0;
my %options = ();
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if (! getopts("fnq", \%options)) {
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    usage();
}
if ($options{f}) {
    $force_unconnected_interfaces = 1;
}
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if ($options{'n'}) {
    $noreboot = 1;
}
if ($options{'q'}) {
    $quiet = 1;
}
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#
# We seem to have to do this so that ssh gets proper root permissions to read
# the key file. Argh.
#
$UID = $EUID = 0;

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if (@ARGV < 1) {
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    usage();
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}

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#
# For vnodes - figure out the jail IP base
#
my $IPBASE;
if (TBDB_JAILIPBASE =~ /^(\d+).(\d+).(\d+).(\d+)/) {
    $IPBASE = "$1.$2";
} else {
    die "Problem with JAILIPBASE\n"
}

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my @node_ids = @ARGV;

#
# Now, loop through the nodes given, and add each one
#
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my (@succeeded_nodes, @reboot_IPs);
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NODE: foreach my $node_id (@node_ids) {
    my $query_result;

    #
    # Check to make sure said node does not already exist!
    #
    $query_result = DBQueryFatal("SELECT node_id FROM nodes WHERE " .
	"node_id='$node_id'");
    if ($query_result->num_rows()) {
	warn "Node $node_id failed: a node with that name already exists!\n";
	next NODE;
    }

    #
    # Grab information about the node from the new_nodes table
    #
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    $query_result = DBQueryFatal("SELECT new_node_id, type, IP, temporary_IP, ".
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	"floor, building, loc_x, loc_y, contact, phone, room, role " .
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	"FROM new_nodes WHERE node_id='$node_id'");
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    if (!$query_result->num_rows()) {
	warn "Node $node_id failed: No pending node with that name exists!\n";
	next NODE;
    }
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    my ($new_node_id, $type, $IP, $tempIP, $floor, $building, $loc_x, $loc_y,
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	$contact, $phone, $room, $role) = $query_result->fetchrow();
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    #
    # Make sure they've given it an IP address that looks valid
    #
    if ($IP !~ /^(\d+).(\d+).(\d+).(\d+)/) {
	warn "Node $node_id has an invalid IP address ($IP) - skipping\n";
	next NODE;
    }

    #
    # Make sure some other node doesn't already have this IP address on its
    # control interface
    #
    $query_result = DBQueryFatal("SELECT node_id FROM interfaces WHERE " .
	"IP='$IP' AND role='" . TBDB_IFACEROLE_CONTROL() . "'");
    if ($query_result->num_rows()) {
	my ($existing_node_id) = $query_result->fetchrow();
	warn "Node $node_id failed: $existing_node_id is already using IP " .
		"address $IP\n";
	next NODE;
    }

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    #
    # Make sure that the new node is of a valid type, and grab a few other
    # things to fill in as initial values
    #
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    my $typeinfo = NodeType->Lookup($type);
    if (!defined($typeinfo)) {
	warn "No such nodetype $type is defined in the DB!\n";
	next NODE;
    }
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    my ($control_iface,$virtnode_capacity,$adminmfs,$adminmfs_osid);
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    if ($typeinfo->control_interface(\$control_iface) || !$control_iface) {
	warn "No control interface for $type is defined in the DB!\n";
	next NODE;
    }
    if ($typeinfo->virtnode_capacity(\$virtnode_capacity)) {
	warn "Failure looking up virtnode_capacity for $type in the DB!\n";
	next NODE;
    }
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    if ($typeinfo->adminmfs_osid(\$adminmfs_osid)) {
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	warn "Failure looking up adminmfs_osid for $type in the DB!\n";
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	next NODE;
    }
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    $virtnode_capacity = 0
	if (!defined($virtnode_capacity));
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    # Find object for the adminfs.
    if (defined($adminmfs_osid)) {
	$adminmfs = OSinfo->Lookup($adminmfs_osid);
    }
    else {
	$adminmfs = OSinfo->Lookup(TBOPSPID(), $MFS_INITIAL);
    }
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    #
    # Grab the node's MACs from the new_interfaces table
    #
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    $query_result = DBQueryFatal("SELECT card, MAC, interface_type, " .
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	"switch_id, switch_card, switch_port, cable, len, role, port " .
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	"FROM new_interfaces WHERE new_node_id='$new_node_id'");
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    if (!$query_result->num_rows()) {
	warn "Node $node_id failed: Must have at least one interface!\n";
	next NODE;
    }

    my %interfaces;
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    while (my ($card, $MAC, $iface_type, $switch_id, $switch_card,
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	    $switch_port, $cable, $len, $ifrole, $port) = $query_result->fetchrow()) {
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	#
	# Get some more information about this interface type
	#
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	my $iface_query = DBQueryFatal("SELECT max_speed, full_duplex, " .
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	    "connector FROM interface_types WHERE type='$iface_type'");
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	if (!$iface_query->num_rows()) {
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	    warn "Node $node_id failed: Interface $card is of unknown type " .
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	    	"$iface_type\n";
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	    next NODE;
	}

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	my ($max_speed, $full_duplex, $connector) = $iface_query->fetchrow();
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	#
	# Do a sanity check - make sure that we have a switch recorded for all
	# experimental interfaces
	#
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	unless ($force_unconnected_interfaces || ($role eq "ctrlnode")) {
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	    my $iface = "eth$card";
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	    if (($iface ne $control_iface) && ($connector !~ /wireless/i)
		&& !$switch_id) {
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		warn "Node $node_id failed: Don't know which switch " .
		    "card $iface is connected to\n";
		next NODE;
	    }
	}

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	#
	# Stash it away...
	#
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	$interfaces{$card} = [$MAC, $iface_type, $max_speed, $full_duplex,
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		$switch_id, $switch_card, $switch_port, $cable, $len, $ifrole, $port];
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    }

    #
    # Make up a priority (just used for sorting)
    #
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    $node_id =~ /^(.*\D)(\d+)$/;
    my ($prefix,$nodenum) = ($1, $2);
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    my $priority;
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    if (defined $nodenum) {
	$priority = $nodenum;
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    } else {
	$priority = 1;
    }

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    #
    # Figure out which project and experiment this node needs to go into
    #
    my ($pid, $eid);
    if ($role eq "ctrlnode") {
	$pid = $PID_OPSNODE;
	$eid = $EID_OPSNODE;
    } else {
	$pid = $PID_HWDOWN;
	$eid = $EID_HWDOWN;
    }

    #
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    # Figure out what osid/opmode this node should run
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    #
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    my ($osid,$opmode);
    
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    if ($role eq "ctrlnode") {
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	my $osinfo = OSinfo->Lookup(TBOPSPID(), $OS_OPSNODE);
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	$osid   = $osinfo->osid();
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	$opmode = $osinfo->op_mode();
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    }
    else {
	$osid   = $adminmfs->osid();
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	$opmode = $adminmfs->op_mode();
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    }

    #
    # Figure out what state to start the node in
    #
    my $state;
    if ($role eq "ctrlnode") {
	$state = $STATE_OPSNODE;
    } else {
	$state = $STATE_INITIAL;
    }

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    #
    # When operating inside an inner elab, we need an extra bit of information
    # from the outer boss; which the IP of the outer control network. This is
    # strictly for bootinfo which has some really gross hacks in it.
    #
    my $outer_control_ip;
    
    if ($ELABINELAB) {
        libxmlrpc::Config({"server"  => $RPCSERVER,
			   "verbose" => 0,
			   "cert"    => $RPCCERT,
			   "portnum" => $RPCPORT});

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	#
	# XXX force MAC to a string since simple XML parser may otherwise
	# think it is an int (i.e., all digits) or even a double (i.e.,
	# all digits with an 'e' in the middle).  Don't laugh, I spent a
	# lot of time figuring this out when it really happened!
	#
	my $macstr = RPC::XML::string->new($interfaces{0}[0]);

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	my $rval = libxmlrpc::CallMethod("elabinelab", "newnode_info",
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					 {"mac" => $macstr});
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	if (!defined($rval)) {
	    print "XMPRPC server did not return control iface info!\n";
	    next NODE;
	}
	else {
	    #
	    # Grab what we need by searching the interface marked as
	    # the outer control network.
	    #
	    my %iface_array = %{ $rval->{"interfaces"} };
		
	    foreach my $mac (keys(%iface_array)) {
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		my $aref   = $iface_array{$mac};
		my $ifrole = $aref->{"role"};
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		if ($ifrole eq TBDB_IFACEROLE_OUTER_CONTROL()) {
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		    $outer_control_ip = $aref->{"IP"};
		    last;
		}
	    }
	}
	if (!defined($outer_control_ip)) {
	    print "Could not determine outer control interface IP!\n";
	    next NODE;
	}
    }

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    #
    # Okay, time to actually add the node!
    #
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    my $uuid = NewUUID();
    if (!defined($uuid)) {
	print "Could not generate a UUID!\n";
	next NODE;
    }
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    DBQueryFatal("INSERT INTO nodes SET node_id='$node_id', type='$type', " .
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	"phys_nodeid='$node_id', role='$role', priority=$priority, " .
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    	"eventstate='$state', op_mode='$opmode', uuid='$uuid', " .
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	"def_boot_osid='$osid', " .
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	"inception=now(), ".
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	"state_timestamp=unix_timestamp(NOW()), " .
	"op_mode_timestamp=unix_timestamp(NOW())");
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    DBQueryFatal("insert into node_hostkeys (node_id) ".
		 "values ('$node_id')");
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    DBQueryFatal("insert into node_status ".
		 "(node_id, status, status_timestamp) ".
		 "values ('$node_id', 'down', now()) ");
    DBQueryFatal("insert into node_activity ".
		 "(node_id) values ('$node_id')");
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    DBQueryFatal("insert into node_utilization ".
		 "(node_id) values ('$node_id')");
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    #
    # Copy data into the location_info table, if they provided any
    #
    if ($floor || $building || $loc_x || $loc_y || $contact
	|| $phone || $room) {

	#
	# Handle columns that could have come to us NULL (and thus are undef)
	#
	if (defined $floor) {
	    $floor = "'$floor'";
	} else {
	    $floor = "NULL";
	}
	if (defined $building) {
	    $building = "'$building'";
	} else {
	    $building = "NULL";
	}
	if (defined $room) {
	    $room = "'$room'";
	} else {
	    $room = "NULL";
	}

	DBQueryFatal("INSERT INTO location_info SET node_id='$node_id', " .
	    "floor=$floor, building=$building, loc_x=$loc_x, loc_y=$loc_y, ".
	    "contact='$contact', phone='$phone', room=$room;");
    }

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    #
    # Add some vnodes
    #
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    if (defined $nodenum && ($role eq "testnode")) {
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	DBQueryFatal("INSERT INTO node_auxtypes set node_id='$node_id', " .
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	    "type='pcvm', count=$virtnode_capacity");
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    }

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    while (my ($card, $aref) = each %interfaces) {
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	my ($MAC, $iface_type, $max_speed, $duplex, $switch_id, $switch_card,
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	    $switch_port, $cable, $len, $ifrole, $port) = @$aref;
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	my $iface = "eth$card";
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	my $iface_IP;
	my $wire_type;
	my $iface_role;

	# Role from new_interfaces overrides anything we decide here.
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	if (defined($ifrole)) {
	    $iface_role = $ifrole;
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	}
	elsif ($iface eq $control_iface) {
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	    $iface_role = TBDB_IFACEROLE_CONTROL();
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	}
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	else {
	    $iface_role = TBDB_IFACEROLE_EXPERIMENT();
	}

	# Okay, now set up some stuff for the inserts.
	if ($iface_role eq TBDB_IFACEROLE_CONTROL()) {
	    $iface_IP  = $IP;
	    $wire_type = "Control";
	}
	elsif ($iface_role eq TBDB_IFACEROLE_OUTER_CONTROL()) {
	    $iface_IP  = $outer_control_ip;
	    $wire_type = "OuterControl";
	}
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	else {
	    # Experimental interfaces start with no speed set. 
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	    $max_speed = 0;
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	    $iface_IP  = "";
	    $wire_type = "Node";
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	}
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	if (! $useScriptFeature)
	{
	    $port = 1;
	}
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	DBQueryFatal("INSERT INTO interfaces SET node_id='$node_id', " .
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	    "card=$card, port='$port', mac='$MAC', IP='$iface_IP', " .
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	    "interface_type='$iface_type', iface='$iface', uuid=UUID(), " .
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	    "current_speed='$max_speed', duplex=$duplex, role='$iface_role'");
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	DBQueryFatal("INSERT INTO interface_state SET node_id='$node_id', " .
	    "card=$card, port=1, iface='$iface'");

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	if (!$switch_id) {
	    print "No switch found for ${node_id}:$iface - skipping\n";
	    next;
	}
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	my $cable_len = "";
	if ($cable) {
	    $cable_len .= ", cable=$cable";
	}
	if ($len) {
	    $cable_len .= ", len=$len";
	}
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	if (! $useScriptFeature) {
	    DBQueryFatal("INSERT INTO wires SET type='$wire_type', " .
			 "node_id1='$node_id', card1=$card, port1=1, " .
			 "node_id2='$switch_id', card2='$switch_card', " .
			 "port2='$switch_port' $cable_len");
	}
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    }

    #
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    # Put it into hwdown for now - I would put them in reloading, but I'm
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    # afraid the reload_daemon might do the wrong thing to them
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    #
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    system "$nalloc $pid $eid $node_id";
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    #
    # Remove the node from the new_ tables
    #
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    DBQueryFatal("DELETE FROM new_nodes WHERE new_node_id=$new_node_id");
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    DBQueryFatal("DELETE FROM new_interfaces WHERE new_node_id=$new_node_id");
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    print "$node_id succesfully added!\n";
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    push @succeeded_nodes, $node_id;
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    #
    # Only reboot regular nodes, not ops nodes
    #
    if ($role ne "ctrlnode") {
	push @reboot_IPs, $tempIP;
    }
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}

#
# No point in restarting dhcpd, etc. if there are no nodes that succeeded
#
if (!@succeeded_nodes) {
    die "No nodes succeeded, exiting early\n";
}

#
# Re-generate dhcpd.conf
#
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print "Re-generating dhcpd.conf\n";
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if (system("$dhcpd_makeconf -i -r")) {
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    die "Unable to open regenerate dhcpd config file\n";
}
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print "Setting up nameserver\n";
my $named_rv = system "$named_setup";
if ($named_rv) {
    die "Error running named_setup - return value was $named_rv\n";
}
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#
# Before we boot nodes into the MFS, we have to make sure they can mount
# NFS filesystems
#
print "Running exports_setup\n";
my $exports_rv = system "$exports_setup";
if ($exports_rv) {
    warn "WARNING - exports_setup returned $exports_rv";
}
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#
# Start rebooting nodes
#
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if (!$noreboot) {
    print "Rebooting nodes...\n";
    foreach my $IP (@reboot_IPs) {
	print "Rebooting $IP\n";
	system "$newnode_reboot $IP\n";
    }
}
if (!$quiet) {
    print "\n\n";
    print "Finished - when you are satisifed that the nodes are working\n";
    print "correctly, use nfree on boss to free them from the emulab-ops/hwdown\n";
    print "experiment.\n";
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}
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#
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# TODO -
#    disable interfaces
#    console setup
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#