ops-install.in 16.3 KB
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#!/usr/bin/perl -w

#
# EMULAB-COPYRIGHT
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# Copyright (c) 2003, 2004, 2005 University of Utah and the Flux Group.
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# All rights reserved.
#

#
# install-ops.sh - Script to do the initial install of an ops node
#
# The main things it does not do yet:
# * Figure out where to put directories such as /users /proj - they must
#   already exist
# * Fill out mailing list files - presumably, it's easier to just get the
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#   User to edit them himself
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#

#
# Configure variables
#
my $PREFIX = '@prefix@';

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my @MAILING_LISTS = ("@TBOPSEMAIL@","@TBLOGSEMAIL@","@TBWWWEMAIL@",
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    "@TBAPPROVALEMAIL@","@TBAUDITEMAIL@","@TBSTATEDEMAIL@",
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    "@TBTESTSUITEEMAIL@");

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my $OURDOMAIN   = '@OURDOMAIN@';
my $USERNODE    = '@USERNODE@';
my $FSNODE      = '@FSNODE@';
my $BOSSNODE    = '@BOSSNODE@';
my $BOSSNODE_IP = '@BOSSNODE_IP@';
my $USERNODE_IP = '@USERNODE_IP@';
my $LOGFACIL    = '@TBLOGFACIL@';
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my $WINSUPPORT  = @WINSUPPORT@;
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# For /share export below.
my $CONTROL_NETWORK = "@CONTROL_NETWORK@";
my $CONTROL_NETMASK = "@CONTROL_NETMASK@";

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

#
# Handle command-line options
#
sub usage {
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    print "Usage: ops-install [-b] [-p packagedir] [-P portname]\n";
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    exit(1);
}

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#
# The default meta-port (name and version) that drags in all the dependancies
# for an ops node
#
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my $OPS_PORT = "emulab-ops-1.4";
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my $packagedir = "";
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my $batchmode  = 0;
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my %opts;
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if (! getopts("P:p:b", \%opts)) {
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    usage();
}
if (defined($opts{p})) {
    $packagedir = $opts{p};
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}
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if (defined($opts{b})) {
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    $batchmode = 1;
}
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if (defined($opts{P})) {
    $OPS_PORT = $opts{P};
}
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if (@ARGV) {
    usage();
}
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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/..";

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#
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# Some programs we use
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#
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my $CHGRP      = "/usr/bin/chgrp";
my $CHMOD      = "/bin/chmod";
my $PW         = "/usr/sbin/pw";
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my $PATCH      = "/usr/bin/patch";
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my $NEWALIASES = "/usr/bin/newaliases";
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my $SH         = "/bin/sh";
my $PKG_INFO   = "/usr/sbin/pkg_info";
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my $PKG_ADD    = "/usr/sbin/pkg_add";
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my $PWD        = "/bin/pwd";
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my $CP         = "/bin/cp";
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my $MV         = "/bin/mv";
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my $GMAKE      = "/usr/local/bin/gmake";
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my $ENV        = "/usr/bin/env";
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#
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# Some files we edit/create
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#
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my $RCCONF          = "/etc/rc.conf";
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my $HOSTS           = "/etc/hosts";
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my $RCLOCAL         = "/etc/rc.local";
my $RCCAPTURE       = "$PREFIX/etc/rc.capture";
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my $LOCAL_HOSTNAMES = "/etc/mail/local-host-names";
my $ALIASES_FILE    = "/etc/mail/aliases";
my $EXPORTS_FILE    = "/etc/exports";
my $EXPORTS_HEAD    = "$EXPORTS_FILE.head";
my $SYSLOG_CONF     = "/etc/syslog.conf";
my $NEWSYSLOG_CONF  = "/etc/newsyslog.conf";
my $SUDOERS         = "/usr/local/etc/sudoers";
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my $SSHD_CONFIG     = "/etc/ssh/sshd_config";
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my $CRONTAB         = "/etc/crontab";
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my $AUTHKEYS	    = "/root/.ssh/authorized_keys";
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my $SMBCONF_FILE    = "/usr/local/etc/smb.conf";
my $SMBCONF_HEAD    = "$SMBCONF_FILE.head";
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#
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# Some directories we care about
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#
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my $LIST_DIR   = "/etc/mail/lists";
my $TIPLOG_DIR = "/var/log/tiplogs";
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my $PORTSDIR   = "/usr/ports/misc";
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my $SRCDIR     = '@srcdir@';
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my $TOP_SRCDIR = "@top_srcdir@";
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my $RCDIR      = "/usr/local/etc/rc.d";
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#
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# And some lists that we use
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#
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my @LOCAL_HOSTS        = ($OURDOMAIN,$BOSSNODE,$USERNODE,$FSNODE);
my @LOGFILES           = ("/var/log/logins","/var/log/tiplogs/capture.log",
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    "/var/log/mountd.log");
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my @LOCAL_MAILING_LISTS = grep(/$OURDOMAIN$/,@MAILING_LISTS);
my @MAILING_LIST_NAMES  = map { /^([\w-]+)\@/ } @LOCAL_MAILING_LISTS;
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my @TESTBED_DIRS       = ([$PREFIX, "0775"], ["/users", "0755"],
    ["/proj", "0755"], ["/groups", "0755"], ["/share", "0775"]);
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#
# A few files we have to deal with
#
my $ELVIND_CONF     = "/usr/local/etc/elvind.conf";
my $OPS_ELVIND_CONF = "$TOP_OBJDIR/event/etc/elvind-ops.conf";
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my $M2CRYPTO_PATCH  = "$TOP_SRCDIR/patches/m2crypto.patch";
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my $IDENTPUB        = "$TOP_SRCDIR/install/identity.pub";
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#
# List of names that goes into $HOSTS and which must resolve.
# 
my @OPS_NAMES = ($USERNODE, "users", "ops");
push(@OPS_NAMES, $FSNODE)
    if ($USERNODE ne $FSNODE);

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#
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# Make sure they know what they're getting into...
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#
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if (! $batchmode) {
    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 ops node. Continue? [y/N] ";
    my $response = <>;
    die "Installation aborted!\n" unless ($response =~ /^y/i);
}
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if ($UID != 0) {
    die "This script must be run as root.\n";
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}

#
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# The phases are fairly self-explanatory
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#

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

Phase "dirs", "Setting directory permissions", sub {
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    foreach my $dirref (@TESTBED_DIRS) {
	my ($dir, $newmode) = @$dirref;
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	Phase $dir, $dir, sub {
	    if (!-d $dir) {
		PhaseFail("Directory $dir does not exist");
	    }
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	    # Use the real path, to avoid symlink problems
	    my $realdir = `realpath $dir`;
	    chomp $realdir;
	    my ($mode,$group) = (stat($realdir))[2,5];
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	    # Fix up the mode (strip file type)
	    $mode = $mode & 0777;
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	    if ($mode == eval $newmode && $group eq getgrnam("tbadmin")) {
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		PhaseSkip("Already done");
	    }
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	    ExecQuietFatal("$CHGRP tbadmin $realdir");
	    ExecQuietFatal("$CHMOD $newmode $realdir");
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	};
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    }
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};
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Phase "ports", "Installing ports", sub {
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    Phase "packages", "Installing packages", sub {
	if (!ExecQuiet("$PKG_INFO -e $OPS_PORT")) {
	    PhaseSkip("Ports already installed");
	}
	if (!$packagedir) {
	    PhaseSkip("No package directory provided");
	}
	ExecQuietFatal("$ENV PKG_PATH=$packagedir $PKG_ADD $OPS_PORT");
    };
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    Phase "pcopy", "Copying ports into place", sub {
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	if ($packagedir) {
	    PhaseSkip("Package directory provided");
	}
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	DoneIfExists("$PORTSDIR/emulab-ops");
	ExecQuietFatal("$SH $SRCDIR/ports/ports-install");
    };
    Phase "pinstall", "Installing ports (may take a while)", sub {
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	if (!ExecQuiet("$PKG_INFO -e $OPS_PORT")) {
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	    PhaseSkip("Ports already installed");
	}
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	if ($packagedir) {
	    PhaseSkip("Package directory provided");
	}
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	#
	# This port is dead-simple, so it's safe to do it from this script
	#
	my $pwd = `$PWD`;
	chomp $pwd;
	chdir "$PORTSDIR/emulab-ops" or
		PhaseFail "Unable to change to $PORTSDIR/emulab-ops: $!";
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	ExecQuietFatal("make -DBATCH install");
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	chdir $pwd;
    };
};

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Phase "patches", "Applying patches", sub {
    Phase "m2cryptopatch", "Patching m2crypto", sub {
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        if (!ExecQuiet("$PATCH -C -f -l -R -p0 -i $M2CRYPTO_PATCH")) {
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            PhaseSkip("$M2CRYPTO_PATCH already applied");
        }
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        ExecQuietFatal("$PATCH -f -p0 -l -i $M2CRYPTO_PATCH");
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    };
}; 

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Phase "rc.conf", "Adding testbed content to rc.conf", sub {
    DoneIfEdited($RCCONF);
    AppendToFileFatal($RCCONF,
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		      qq|sendmail_enable="YES"|,
		      qq|nfs_server_enable="YES"|,
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		      ($WINSUPPORT ? qq|enable_smbd="YES"| : ()),
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		      qq|nfs_server_flags="-u -t -n 16"|,
		      qq|syslogd_flags=""|);
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};
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Phase "hosts", "Adding boss/ops IP addresses to $HOSTS", sub {
    DoneIfEdited($HOSTS);
    AppendToFileFatal($HOSTS,
		      "${BOSSNODE_IP}\t${BOSSNODE} boss",
		      "${USERNODE_IP}\t@OPS_NAMES");
};

Phase "resolve", "Checking to make sure names for boss/ops resolve", sub {
    foreach my $name (@OPS_NAMES, ${BOSSNODE}, "boss") {
	Phase $name, $name, sub {
	    if (gethostbyname($name)) {
		PhaseSkip("$name resolves");
	    } else {
		PhaseFail("$name does not resolve");
	    }
	};
    }
};

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Phase "sendmail","Configuring sendmail", sub {
    Phase "localhosts", "Setting up $LOCAL_HOSTNAMES", sub {
	DoneIfExists($LOCAL_HOSTNAMES);
	CreateFileFatal($LOCAL_HOSTNAMES,@LOCAL_HOSTS);
    };
    Phase "maillists", "Setting up mailing lists", sub {
	Phase "listdir", "Creating $LIST_DIR", sub { 
	    DoneIfExists($LIST_DIR);
	    mkdir($LIST_DIR,0755) or
		PhaseFail("Unable to create $LIST_DIR: $!");
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	    ExecQuietFatal("$CHGRP mailnull $LIST_DIR");
	    ExecQuietFatal("$CHMOD 750 $LIST_DIR");
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	};
	Phase "listfiles", "Creating mailing list files", sub {
	    foreach my $list (@MAILING_LIST_NAMES) {
		Phase $list, $list, sub {
		    DoneIfExists("$LIST_DIR/$list");
		    CreateFileFatal("$LIST_DIR/$list");
		};
	    }
	};
	Phase "aliases", "Adding lists to $ALIASES_FILE", sub {
	    DoneIfEdited($ALIASES_FILE);
	    AppendToFileFatal($ALIASES_FILE,
		map("$_:\t:include:$LIST_DIR/$_",@MAILING_LIST_NAMES));
	};
	Phase "newaliases", "Running newaliases", sub {
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	    PhaseSkip("No new aliases") unless @MAILING_LIST_NAMES;
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	    PhaseSkip("No new aliases") if PhaseWasSkipped("aliases");
	    ExecQuietFatal($NEWALIASES);
	};
    };
};


Phase "exports", "Setting up exports", sub {
    Phase "ex.head", "Creating $EXPORTS_HEAD", sub {
	DoneIfExists($EXPORTS_HEAD);

	#
	# Figure out which of these directories are on the same
	# filesystems
	#
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	my @dirs = ('/users','/groups','/proj','/share','/var','/usr/testbed');
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	@dirs = map {`realpath $_`} @dirs;
	chomp @dirs;
	my %filesystems;
	foreach my $dir (@dirs) {
	    my ($dev,@junk) = stat $dir;
	    push @{$filesystems{$dev}}, $dir;
	}

	#
	# Use that knowledge to create lines for /etc/exports.head
	#
	my @exports_lines;
	foreach my $key (keys %filesystems) {
	    push @exports_lines,
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		join(" ",@{$filesystems{$key}}) . "\t$BOSSNODE -maproot=root";
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	}

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	#
	# /share is special. We want to export that to the control network
	# read-only (it is exported to boss r/w, above).
	#
	my ($a,$b,$c,$d) = ($CONTROL_NETWORK =~ /^(\d*)\.(\d*)\.(\d*)\.(\d*)/);
	my $realdir = `realpath /share`;
	chomp($realdir);
	push(@exports_lines,
	     "$realdir\t-network ${a}.${b}.${c} -mask $CONTROL_NETMASK ".
	     "-maproot=root -ro");

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	#
	# Put them in exports.head, and copy that to /etc/exports
	#
	CreateFileFatal($EXPORTS_HEAD, @exports_lines);
	ExecQuietFatal("cp $EXPORTS_HEAD $EXPORTS_FILE");
    };

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    # XXX Newhup
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    Phase "mountd", "HUPing mountd", sub {
	PhaseSkip("No new exports file") if PhaseWasSkipped("ex.head");
	PhaseSkip("mountd not running") unless `ps -auxw | grep mountd | grep -v grep`;
	ExecQuietFatal("killall -HUP mountd");
    };
};
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#
# Set up syslog
#
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Phase "syslog", "Setting up syslog", sub {
    Phase "sysconf", "Editing $SYSLOG_CONF", sub {
	DoneIfEdited($SYSLOG_CONF);
	
	#
	# Can't just append to this file, unfortunately. Have to put some of
	# the lines in the middle of the file
	#
	open(SC,"+<$SYSLOG_CONF") or
	    PhaseFail("Unable to open $SYSLOG_CONF : $!");
	my @sc = <SC>;
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	if (scalar(grep(/$LOGFACIL/, @sc)) != 0) {
	    PhaseFail("Testbed chosen facility $LOGFACIL already in use in /etc/syslog.conf!");
	}
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	if (scalar(grep(/^cron/, @sc)) != 1) {
	    PhaseFail("Unable to find marker in /etc/syslog.conf!");
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	}

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	#
	# Clobber and re-write
	#
	seek(SC,0,0);
	truncate(SC,0);
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	foreach my $line (@sc) {
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	    #
	    # Modify the /var/log/messages line to exclude testbed stuff
	    #
	    my $pat = q(\s+/var/log/messages);
	    if ($line =~ /^[^#].*$pat/) {
		$line =~ s/($pat)/\;$LOGFACIL.none$1/;
	    }
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	    #
	    # XXX don't send anything to logged in root users.
	    # Per-user linktest proxies run on ops as root in a "full"
	    # ssh ("-t -t") which appears as a login shell.  Thus the
	    # linktest output given to the user might include syslog
	    # messages.
	    #
	    if ($line =~ /root$/) {
		$line =~ s/^/#/;
	    }

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	    print SC $line;
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	    #
	    # Find the cron line, after which we place our auth.info line
	    #
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	    if ($line =~ /^cron/) {
		print SC "# " . MAGIC_TESTBED_START . "\n";
		print SC "auth.info\t\t\t\t\t/var/log/logins\n";
		print SC "# " . MAGIC_TESTBED_END . "\n";
	    }
	}
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	#
	# Put a few more lines at the end
	#
	print SC "# " . MAGIC_TESTBED_START . "\n";
	print SC "!capture\n";
	print SC "*.*\t\t\t\t\t\t/var/log/tiplogs/capture.log\n";
	print SC "!mountd\n";
	print SC "*.*\t\t\t\t\t\t/var/log/mountd.log\n";
	print SC "# " . MAGIC_TESTBED_END . "\n";
	close SC;
    };

    Phase "tiplog", "Creating $TIPLOG_DIR", sub {
	DoneIfExists($TIPLOG_DIR);
	mkdir($TIPLOG_DIR,0755) or PhaseFail("Unable to make $TIPLOG_DIR : $!");
    };
    
    Phase "logfiles", "Creating log files", sub {
	foreach my $logfile (@LOGFILES) {
	    Phase $logfile, $logfile, sub {
		DoneIfExists($logfile);
		CreateFileFatal($logfile);
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		ExecQuietFatal("$CHGRP tbadmin $logfile");
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		ExecQuietFatal("$CHMOD 640 $logfile");
	    };
	}
    };

    Phase "newsyslog", "Setting up $NEWSYSLOG_CONF", sub {
	DoneIfEdited($NEWSYSLOG_CONF);
	AppendToFileFatal($NEWSYSLOG_CONF,
	    "/var/log/logins\t\t\t\t640  7     200 *      Z",
	    "/var/log/mountd.log\t\t\t640  5     200 *      Z",
	    "/var/log/tiplogs/capture.log\t\t644  7     *    168   Z");
    };
};

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Phase "cron", "Adding cron jobs", sub {
    Phase "crontab", "Editing $CRONTAB", sub {
	DoneIfEdited($CRONTAB);
	AppendToFileFatal($CRONTAB,
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	    "0 \t6\t*\t*\t*\troot\t$PREFIX/sbin/quotamail");
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    };
    Phase "cronhup", "HUPing cron", sub {
	if (PhaseWasSkipped("crontab")) { PhaseSkip("No new crontab"); }
	HUPDaemon("cron");
    };
};

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Phase "sudoers", "Editing $SUDOERS", sub {
    DoneIfEdited($SUDOERS);
    AppendToFileFatal($SUDOERS,"%wheel    ALL=(ALL) NOPASSWD: ALL");
};
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if ($WINSUPPORT) {
    Phase "samba", "Setting up Samba", sub {
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	Phase "smb.conf", "Installing smb.conf[.head]", sub {
	    DoneIfEdited($SMBCONF_HEAD);
	    ExecQuietFatal("$CP -pf $TOP_OBJDIR/install/smb.conf.head $SMBCONF_HEAD");
	    AppendToFileFatal($SMBCONF_HEAD,
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			      "# This file created by Emulab Control");
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            ExecQuietFatal("$CP -pf $SMBCONF_HEAD $SMBCONF_FILE");
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	};
	Phase "samba.sh", "Installing samba.sh", sub {
	    DoneIfExists("$RCDIR/samba.sh");
	    DoneIfDoesntExist("$RCDIR/samba.sh.sample");
	    ExecQuietFatal("$MV -f $RCDIR/samba.sh.sample $RCDIR/samba.sh");
	};
    };
}

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Phase "ssh", "Allowing root ssh", sub {
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    Phase "sshdconfig", "Permitting root login through ssh", sub {
	DoneIfEdited($SSHD_CONFIG);
	AppendToFileFatal($SSHD_CONFIG,"PermitRootLogin yes");
    };
    Phase "dotssh", "Making root's .ssh directory", sub {
	DoneIfExists("/root/.ssh");
	mkdir("/root/.ssh",0700) or
	    PhaseFail("Unable to create /root/.ssh: $!");
    };
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   Phase "authkeys", "Adding stub identity to /root/.ssh/authorized_keys", sub {
       DoneIfEdited($AUTHKEYS);
       my $ident = `cat $IDENTPUB`;
       PhaseFail("Could not read $IDENTPUB")
	   if ($?);
       chomp($ident);
       AppendToFileFatal($AUTHKEYS,
			 "from=\"${BOSSNODE}\" $ident");
   };
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};

Phase "capture", "Setting up capture", sub {
    Phase "rc.local", "Creating $RCLOCAL", sub {
	DoneIfExists($RCLOCAL);
	CreateFileFatal($RCLOCAL,
	    "if [ -f /etc/defaults/rc.conf ]; then",
	    "\t. /etc/defaults/rc.conf",
	    "fi",
	    "",
	    "if [ -x $RCCAPTURE ]; then",
	    "\techo -n \" capture\"",
	    "\t$RCCAPTURE",
	    "fi");
    };
    Phase "etc", "Creating $PREFIX/etc", sub {
	DoneIfExists("$PREFIX/etc");
	mkdir("$PREFIX/etc",0755) or
	    PhaseFail("Unable to create $PREFIX/etc: $!");
    };
    Phase "rc.capture", "Creating empty $RCCAPTURE", sub {
	DoneIfExists($RCCAPTURE);
	CreateFileFatal($RCCAPTURE,"#!/bin/sh");
	ExecQuietFatal("$CHMOD a+rx $RCCAPTURE");
    };
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};

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Phase "event", "Setting up event system", sub {
    Phase "elvinconf", "Installing elvind config file", sub {
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	DoneIfIdentical($ELVIND_CONF,$OPS_ELVIND_CONF);
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	ExecQuietFatal("$CP $OPS_ELVIND_CONF $ELVIND_CONF");
    };
};

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Phase "rc.d", "Setting up rc.d scripts", sub {
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    Phase "rsyncd", "Removing rsyncd startup script",  sub {
	DoneIfDoesntExist("$RCDIR/rsyncd.sh");
	if (!unlink "$RCDIR/rsyncd.sh") {
	    PhaseFail("Unable to remove $RCDIR/rsyncd.sh: $!");
	}
    };
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    Phase "rc.testbed", "Installing testbed RC scripts", sub {
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        Phase "elvind.sh", "Removing port version of elvind.sh", sub {
	    DoneIfDoesntExist("$RCDIR/elvind.sh");
            ExecQuietFatal("/bin/rm -f $RCDIR/elvind.sh");
        };
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	DoneIfExists("$RCDIR/2.elvind.sh");
	ExecQuietFatal("$GMAKE -C $TOP_OBJDIR/rc.d control-install");
    };
};

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print "----------------------------------------------------------------------\n";
print "Installation completed succesfully!\n";
print "Please reboot this machine before proceeding with boss setup\n";
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if (!PhaseWasSkipped("maillists")) {
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    print "Local mailing lists have been created, with no members, in\n";
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    print "$LIST_DIR . Please add members to the following lists:\n";
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    print map "$_\n", @LOCAL_MAILING_LISTS;
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}