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#!/usr/bin/perl -w

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

#
# install-boss.sh - Script to do the initial install of a boss node
#
# The main things it does not do yet:
# * Figure out where to put directories such as /usr/testbed - they must
#   already exist
# * Set up named - we probably have to do that later, when the interfaces table
#   is filled in
# * Set up a sup tree. Not sure what the right thing to do here is!
# * Doesn't do anything about SSL certificates for the web

#
# Configure variables
#
my $PREFIX     = '@prefix@';
my $SRCDIR     = '@srcdir@';
my $TOP_SRCDIR = '@top_srcdir@';
my $DBNAME     = "@TBDBNAME@";

my $OURDOMAIN  = '@OURDOMAIN@';

my $USERNODE   = '@USERNODE@';
my $FSNODE     = '@FSNODE@';
my $BOSSNODE   = '@BOSSNODE@';

#
# Some programs we use
#
my $SH         = "/bin/sh";
my $CHMOD      = "/bin/chmod";
my $CHGRP      = "/usr/bin/chgrp";
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my $CHOWN      = "/usr/sbin/chown";
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my $PWD        = "/bin/pwd";
my $PW         = "/usr/sbin/pw";
my $PATCH      = "/usr/bin/patch";
my $SSH_KEYGEN = "/usr/bin/ssh-keygen";
my $PKG_INFO   = "/usr/sbin/pkg_info";
my $TOUCH      = "/usr/bin/touch";

my $SUIDPERL   = "/usr/bin/suidperl";

my $MYSQL      = "/usr/local/bin/mysql";
my $MYSQLADMIN = "/usr/local/bin/mysqladmin";
my $MYSQLSHOW  = "/usr/local/bin/mysqlshow";
my $MYSQLDUMP  = "/usr/local/bin/mysqldump";

my $GMAKE      = "/usr/local/bin/gmake";

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my $RNDC_CONFGEN = "/usr/local/sbin/rndc-confgen";
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#
# Some files we edit/create
#
my $CRONTAB         = "/etc/crontab";
my $FSTAB           = "/etc/fstab";
my $RCCONF          = "/etc/rc.conf";
my $SYSLOG_CONF     = "/etc/syslog.conf";
my $NEWSYSLOG_CONF  = "/etc/newsyslog.conf";

my $ROOT_PRIVKEY    = "/root/.ssh/identity";
my $ROOT_PUBKEY     = "$ROOT_PRIVKEY.pub";
my $ROOT_AUTHKEY    = "/root/.ssh/authorized_keys";

my $SUDOERS         = "/usr/local/etc/sudoers";
my $HTTPD_CONF      = "/usr/local/etc/apache/httpd.conf";
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my $PHP_INI         = "/usr/local/etc/php.ini";
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my $CRACKLIB_DICT   = "/usr/local/lib/pw_dict.pwd";

my $STL_PATCH       = "$TOP_SRCDIR/patches/g++.patch";

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my $SSH_CONFIG      = "/etc/ssh/ssh_config";

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my $RNDC_KEY        = "/usr/local/etc/rndc.key";

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#
# Some directories we care about
#
my $LOGDIR       = "$PREFIX/log";
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my $MYSQL_LOGDIR = "$LOGDIR/mysql";
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my $RCDIR        = "/usr/local/etc/rc.d";
my $USERSVAR_DIR = "$PREFIX/usersvar";
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my $OPSDIR_DIR   = "$PREFIX/opsdir";
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my $PORTSDIR     = "/usr/ports/misc";
my $MIBPATH      = "/usr/local/share/snmp/mibs";
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my $TFTP_DIR     = "$PREFIX/tftpboot";
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#
# URLs
#
my $CISCO_MIB_FTP = "ftp://ftp.cisco.com/pub/mibs/v2";

#
# And some lists that we use
#
my @TESTBED_DIRS = ($PREFIX);

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my @MOUNTPOINTS = ("$PREFIX/usersvar", "$PREFIX/opsdir",
		   "/users", "/proj", "/groups", "/share");
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my @LOGFILES = ("$LOGDIR/bootinfo.log", "$LOGDIR/tmcd.log",
    "$LOGDIR/capture.log", "$LOGDIR/dhcpd.log", "$LOGDIR/capserver.log",
    "$LOGDIR/frisbeed.log", "$LOGDIR/frisbee.log", "$LOGDIR/tevd.log",
    "$LOGDIR/elvind.log", "$LOGDIR/stated.log", "$LOGDIR/osselect.log");

my @CISCO_MIBS = ("CISCO-SMI", "CISCO-TC", "CISCO-VTP-MIB", "CISCO-PAGP-MIB",
    "CISCO-PRIVATE-VLAN-MIB", "CISCO-STACK-MIB", "CISCO-VLAN-MEMBERSHIP-MIB");

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my @OPS_NAMES = ($FSNODE, $USERNODE);

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#
# Figure out which directory we live in, so that some stages can do thing
# relative to it.
#
my $OBJDIR = `/usr/bin/dirname $0`;
chomp $OBJDIR;
my $TOP_OBJDIR = "$OBJDIR/..";

#
# Allow this to work if the library is left in the source directory
#
use lib '@srcdir@';
   
use English;
use libinstall;

#
# Make sure they know what they're getting into...
#
warn "***** Please run install-ops on ops, and reboot it, before running\n";
warn "this script!\n\n";
print STDERR "WARNING: This script is ONLY intended to be run on a machine\n";
print STDERR "that is being set up as a dedicated boss node. Continue? [y/N] ";
my $response = <>;
die "Installation aborted!\n" unless ($response =~ /^y/i);

if ($UID != 0) {
    die "This script must be run as root.\n";
}

Phase "groups", "Creating groups", sub {
    Phase "tbadmin", "Creating tbadmin group", sub {
	if (getgrnam("tbadmin")) {
	    PhaseSkip("tbadmin group already exists");
	}
	ExecQuietFatal("$PW groupadd tbadmin -g 101");
    };
    Phase "root", "Creating root group", sub {
	if (getgrnam("root")) {
	    PhaseSkip("root group already exists");
	}
	ExecQuietFatal("$PW groupadd root -g 103");
    };
};

Phase "dirs", "Setting directory permissions", sub {
    foreach my $dir (@TESTBED_DIRS) {
	Phase $dir, $dir, sub {
	    if (!-d $dir) {
		PhaseFail("Directory $dir does not exist");
	    }
	    my ($mode,$group) = (stat($dir))[2,5];
	    # Fix up the mode (strip file type)
	    $mode = $mode & 0777;
	    if ($mode == 0775 && $group eq getgrnam("tbadmin")) {
		PhaseSkip("Already done");
	    }
	    ExecQuietFatal("$CHGRP tbadmin $dir");
	    ExecQuietFatal("$CHMOD 0775 $dir");
	};
    }
};

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Phase "tftp", "Setting up directories for tftp", sub {
    Phase "tftpboot", "Creating $TFTP_DIR", sub {
	DoneIfExists($TFTP_DIR);
	mkdir $TFTP_DIR,0775 or
	    PhaseFail("Unable to create $TFTP_DIR : $!");
	ExecQuietFatal("$CHGRP tbadmin $TFTP_DIR");
    };
    Phase "tftplink", "Linking /tftpboot", sub {
	DoneIfExists("/tftpboot");
	ExecQuietFatal("ln -s $TFTP_DIR /tftpboot");
    };
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};

Phase "ports", "Installing ports", sub {
    Phase "pcopy", "Copying ports into place", sub {
	DoneIfExists("$PORTSDIR/emulab-boss");
	ExecQuietFatal("$SH $SRCDIR/ports/ports-install");
    };
    Phase "pinstall", "Checking for port installation", sub {
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	if (!ExecQuiet("$PKG_INFO -e emulab-boss-1.3")) {
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	    PhaseSkip("Ports already installed");
	}
	PhaseFail("Please install ports manually, since some\n of them are " .
	    "interactive. Run: \n" .
	    "cd $PORTSDIR/emulab-boss && make install\n" .
	    "then re-run this script.");
    };
};

Phase "patches", "Applying patches", sub {
    Phase "g++patch", "Patching g++'s STL", sub {
	if (!ExecQuiet("$PATCH -C -f -R -p0 -i $STL_PATCH")) {
	    PhaseSkip("$STL_PATCH already applied");
	}
	ExecQuietFatal("$PATCH -f -p0 -i $STL_PATCH");
    };
};

Phase "cracklib", "Installing cracklib", sub {
    DoneIfExists("$CRACKLIB_DICT");
    my $pwd = `$PWD`;
    chomp $pwd;
    chdir "$TOP_SRCDIR/tbsetup/checkpass/cracklib,2.7" or
	PhaseFail "Unable to change to " .
	    "$TOP_SRCDIR/tbsetup/checkpass/cracklib,2.7: $!";
    ExecQuietFatal("make install clean");
    chdir $pwd;
};

Phase "apache", "Installing apache config file", sub {
    DoneIfEdited("$HTTPD_CONF");
    # ICK!!! If we installed apache AFTER we unpacked the source tarball,
    # make will not properly install the new apache config file! So, we use
    # this shameful hack to force it to do so!
    ExecQuietFatal("$TOUCH -t 01010000 $HTTPD_CONF");
    ExecQuietFatal("$GMAKE -C $TOP_OBJDIR/apache install");
};

Phase "rc.d", "Setting up rc.d scripts", sub {
    Phase "my-client", "Moving $RCDIR/mysql-client.sh", sub {
	DoneIfDoesntExist("$RCDIR/mysql-client.sh");
	ExecQuietFatal("mv $RCDIR/mysql-client.sh $RCDIR/1.mysql-client.sh");
    };
    Phase "my-server", "Removing $RCDIR/mysql-server.sh", sub {
	DoneIfDoesntExist("$RCDIR/mysql-server.sh");
	if (!unlink "$RCDIR/mysql-server.sh") {
	    PhaseFail("Unable to remove $RCDIR/mysql-server.sh: $!");
	}
    };
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    Phase "dhcpd", "Moving $RCDIR/dhcpd.sh", sub {
	DoneIfExists("$RCDIR/2.dhcpd.sh");
	ExecQuietFatal("mv $RCDIR/isc-dhcpd.sh.sample $RCDIR/2.dhcpd.sh");
    };
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    Phase "snmpd", "Removing snmpd starup script",  sub {
	DoneIfDoesntExist("$RCDIR/snmpd.sh");
	if (!unlink "$RCDIR/snmpd.sh") {
	    PhaseFail("Unable to remove $RCDIR/snmpd.sh: $!");
	}
    };
    Phase "rc.testbed", "Installing testbed RC scripts", sub {
	DoneIfExists("$RCDIR/3.testbed.sh");
	ExecQuietFatal("$GMAKE -C $TOP_OBJDIR/rc.d install");
    };
};

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Phase "syslog", "Setting up syslog", sub {
    Phase "sysconf", "Editing $SYSLOG_CONF", sub {
	DoneIfEdited($SYSLOG_CONF);
	AppendToFileFatal($SYSLOG_CONF,
	    "!bootinfo",  "*.*\t\t\t\t\t\t$LOGDIR/bootinfo.log",
	    "!tmcd",      "*.*\t\t\t\t\t\t$LOGDIR/tmcd.log",
	    "!capture",   "*.*\t\t\t\t\t\t$LOGDIR/capture.log",
	    "!dhcpd",     "*.*\t\t\t\t\t\t$LOGDIR/dhcpd.log",
	    "!capserver", "*.*\t\t\t\t\t\t$LOGDIR/capserver.log",
	    "!frisbeed",  "*.*\t\t\t\t\t\t$LOGDIR/frisbeed.log",
	    "!frisbee",   "*.*\t\t\t\t\t\t$LOGDIR/frisbee.log",
	    "!tevd",      "*.*\t\t\t\t\t\t$LOGDIR/tevd.log",
	    "!elvind",    "*.*\t\t\t\t\t\t$LOGDIR/elvind.log",
	    "!stated",    "*.*\t\t\t\t\t\t$LOGDIR/stated.log",
	    "!plabgetfree","*.*\t\t\t\t\t\t$LOGDIR/plabgetfree.log",
	    "!plabrenew", "*.*\t\t\t\t\t\t$LOGDIR/plabrenew.log",
	    "!osselect",  "*.*\t\t\t\t\t\t$LOGDIR/osselect.log");
    };

    Phase "logdir", "Creating log directory", sub {
	DoneIfExists($LOGDIR);
	mkdir $LOGDIR, 0775 or PhaseFail("Unable to create $LOGDIR : $!");
	ExecQuietFatal("$CHGRP tbadmin $LOGDIR");
    };

    Phase "logdir", "Creating mysql log directory", sub {
	DoneIfExists($MYSQL_LOGDIR);
	mkdir $MYSQL_LOGDIR, 0775 or
	    PhaseFail("Unable to create $MYSQL_LOGDIR : $!");
	ExecQuietFatal("$CHOWN mysql:mysql $LOGDIR");
    };

    Phase "logfiles", "Creating log files", sub {
	foreach my $logfile (@LOGFILES) {
	    Phase $logfile, $logfile, sub {
		DoneIfExists($logfile);
		CreateFileFatal($logfile);
		ExecQuietFatal("$CHGRP tbadmin $logfile");
		ExecQuietFatal("$CHMOD 640 $logfile");
	    };
	}
    };

    Phase "newsyslog", "Setting up $NEWSYSLOG_CONF", sub {
	DoneIfEdited($NEWSYSLOG_CONF);
	AppendToFileFatal($NEWSYSLOG_CONF,
	    "$LOGDIR/tmcd.log               640  9     1000 *     Z",
	    "$LOGDIR/stated.log             640  9     300  *     Z",
	    "$LOGDIR/osselect.log           640  9     300  *     Z",
	    "$LOGDIR/power.log              640  7     300  *     Z",
	    "$LOGDIR/frisbeed.log           640  7     300  *     Z",
	    "$LOGDIR/tftpd.log              640  7     200  *     Z",
	    "$LOGDIR/dhcpd.log              640  7     200  *     Z",
	    "$LOGDIR/bootinfo.log           640  7     200  *     Z",
	    "$LOGDIR/capserver.log          640  5     200  *     Z",
	    "$LOGDIR/elvind.log             640  5     1000 *     Z",
	    "$LOGDIR/tevd.log               640  3     200  *     Z",
	    "$LOGDIR/suexec.log             640  3     200  *     Z",
	    "$LOGDIR/genlastlog             640  3     200  *     Z " .
	        "/var/run/lastlog_daemon.pid");
    };
};

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Phase "database", "Setting up database", sub {
    Phase "mysql", "Starting mysql", sub {
	if (!ExecQuiet("$MYSQLADMIN ping")) {
	    PhaseSkip("mysqld already running");
	}
	ExecQuietFatal("$RCDIR/2.mysql-server.sh start");
	# Give mysqld some time to start, then make sure it did
	sleep 5;
	ExecQuietFatal("$MYSQLADMIN ping");
    };
    Phase "$DBNAME", "Creating $DBNAME", sub {
	if (!ExecQuiet("$MYSQLSHOW $DBNAME")) {
	    PhaseSkip("tbdb already exists");
	}
	ExecQuietFatal("$MYSQLADMIN create $DBNAME");
    };
    Phase "tables", "Creating tables in $DBNAME", sub {
	if (!ExecQuiet("$MYSQLDUMP -d $DBNAME users")) {
	    PhaseSkip("Tables have already been created");
	}
	ExecQuietFatal("$MYSQL $DBNAME < $TOP_SRCDIR/sql/database-create.sql");
    };
    Phase "dbdata", "Filling tables with initial data", sub {
	my ($exitval, @rows) = ExecQuiet("echo 'select * from " .
	    "exported_tables' | $MYSQL -s $DBNAME");
	if ($exitval) {
	    PhaseFail("Error running query");
	}
	if (scalar @rows) {
	    PhaseSkip("Already done");
	}
	ExecQuietFatal("$MYSQL $DBNAME < $TOP_SRCDIR/sql/database-fill.sql");
    };
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    Phase "sitevars", "Setting sitevars to default values", sub {
	my ($exitval, @rows) = ExecQuiet("echo 'select * from " .
	    "sitevariables' | $MYSQL -s $DBNAME");
	if ($exitval) {
	    PhaseFail("Error running query");
	}
	if (scalar @rows) {
	    PhaseSkip("Already done");
	}
	ExecQuietFatal("$MYSQL $DBNAME < $TOP_SRCDIR/sql/sitevars-create.sql");
    };
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};

Phase "rc.conf", "Adding testbed content to $RCCONF", sub {
    DoneIfEdited($RCCONF);
    AppendToFileFatal($RCCONF,
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	qq|nfs_server_enable="YES"|,
	qq|nfs_server_flags="-u -t -n 16"|,
	qq|nfs_client_enable="YES"|,
	qq|inetd_enable="YES"|,
	qq|inetd_flags="-wW -R 0"|,
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	qq|named_enable="NO"|,
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	qq|xntpd_enable="YES"|,
	qq|syslogd_flags=""|,
	qq|tftpd_flags="-lvvvv -C 40 -s /tftpboot"|);
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};

Phase "suidperl", "Setting the suid bit on $SUIDPERL", sub {
    PhaseSkip("Already done") if (-u $SUIDPERL);
    ExecQuietFatal("$CHMOD u+s $SUIDPERL");
};

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Phase "mountpoints", "Creating mountpoints", sub {
    foreach my $dir (@MOUNTPOINTS) {
	Phase $dir, $dir, sub {
	    DoneIfExists($dir);
	    mkdir $dir, 0777 or
		PhaseFail("Unable to create $dir : $!");
	};
    }
};

Phase "resolve", "Checking to make sure names for ops resolve", sub {
    foreach my $name (@OPS_NAMES) {
	Phase $name, $name, sub {
	    if (gethostbyname($name)) {
		PhaseSkip("$name resolves");
	    } else {
		PhaseFail("$name does not resolve - please see setup.txt\n" .
		    "for further instructions!");
	    }
	};
    }
};

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Phase "mounts", "Setting up mounts of fs and ops", sub {
    DoneIfEdited($FSTAB);
    AppendToFileFatal($FSTAB,
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	"$FSNODE:/users\t\t/users\tnfs\trw,nodev,nosuid\t0\t0",
	"$FSNODE:/proj\t\t/proj\tnfs\trw,nodev,nosuid\t0\t0",
	"$FSNODE:/groups\t\t/groups\tnfs\trw,nodev,nosuid\t0\t0",
	"$FSNODE:/share\t\t/share\tnfs\trw,nodev,nosuid\t0\t0",
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	"$USERNODE:/usr/testbed\t\t$OPSDIR_DIR\tnfs\trw,soft,-b,nodev,nosuid\t0\t0",
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	"$USERNODE:/var\t\t$USERSVAR_DIR\tnfs\tro,soft,-b,nodev,nosuid\t0\t0");
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    # XXX - Do we want to do a 'mount -a' at this point?
};

Phase "mibs", "Fetching Cisco MIBs", sub {
    foreach my $mib (@CISCO_MIBS) {
	my $localfile = "$MIBPATH/$mib.txt";
	my $mibURL = "$CISCO_MIB_FTP/$mib.my";
	Phase "$mib", "Fetching $mib", sub {
	    DoneIfExists($localfile);
	    FetchFileFatal($mibURL,$localfile);
	};
    }
};

Phase "cron", "Adding cron jobs", sub {
    Phase "crontab", "Editing $CRONTAB", sub {
	DoneIfEdited($CRONTAB);
	AppendToFileFatal($CRONTAB,
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	    "45 \t1\t*\t*\t*\troot\t$PREFIX/sbin/backup",
	    "*/5\t*\t*\t*\t*\troot\t$PREFIX/sbin/node_status",
	    "*/5\t*\t*\t*\t*\troot\t$PREFIX/sbin/idlemail");
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    };
    Phase "cronhup", "HUPing cron", sub {
	if (PhaseWasSkipped("crontab")) { PhaseSkip("No new crontab"); }
	HUPDaemon("cron");
    };
};

Phase "sudoers", "Editing $SUDOERS", sub {
    DoneIfEdited($SUDOERS);
    AppendToFileFatal($SUDOERS,"%wheel    ALL=(ALL) NOPASSWD: ALL");
};

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Phase "php.ini", "Creating php.ini file", sub {
    DoneIfExists($PHP_INI);
    CreateFileFatal($PHP_INI,
	"[PHP]","",
	";",
	"; So that quotes are not escaped. Needed for netbuild application.",
	";", 
	"magic_quotes_gpc        =       Off","",
	";",
	"; Our scripts depend on this!",
	";",
	"register_globals        =       On");
};

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Phase "ssh", "Setting up root ssh from boss to ops", sub {
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    Phase "keygen", "Creating root private key", sub {
	DoneIfExists($ROOT_PRIVKEY);
	ExecQuietFatal("$SSH_KEYGEN -t rsa1 -P '' -f $ROOT_PRIVKEY");
    };
    Phase "ssh", "Editing ssh config file", sub {
	DoneIfEdited($SSH_CONFIG);
	AppendToFileFatal($SSH_CONFIG,
	    "Host *",
	    "   StrictHostKeyChecking no",
	    "   Protocol 1,2");
    };
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};

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Phase "rndc", "Setting up rndc for control of nameserver", sub {
    DoneIfExists($RNDC_KEY);
    ExecQuietFatal("$RNDC_CONFGEN -a -r /dev/urandom");
};

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print "----------------------------------------------------------------------\n";
print "Installation completed succesfully!\n";
print "Please reboot this machine before proceeding with boss setup\n";

if (!PhaseWasSkipped("ssh")) {
    print "You'll need to manually copy boss's public SSH key over to ops,\n";
    print "so boss can get into ops without a password. Run the following\n";
    print "as root:\n";
    print "scp $ROOT_PUBKEY ops:$ROOT_AUTHKEY\n";
}

exit 0;