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#!/usr/bin/perl -w |
#!/usr/bin/perl -w |
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use strict; |
use strict; |
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use Shell qw/rsync vzlist lvcreate mount umount lvremove which lvdisplay mke2fs vzctl/; |
use Shell qw/rsync lvcreate mount umount lvremove which lvdisplay mke2fs/; |
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my $vz = '/vz'; |
use lib 'lib'; |
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my $conf = '/etc/vz/conf'; |
use VZ; |
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my $snap_size = '100M'; |
my $snap_size = '10G'; |
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my ( $action, $VEID ) = @ARGV; |
my ( $action, $VEID ) = @ARGV; |
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my $use_snapshot = 0; |
my $use_snapshot = 1; |
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my $valid_actions = 'create|mount|umount|destroy'; |
my $valid_actions = 'create|mount|umount|destroy'; |
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die "Usage: $0 ($valid_actions) VEID\n\n",vzlist unless $VEID && $action && $action =~ m/($valid_actions)/; |
die "Usage: $0 ($valid_actions) VEID\n\n",`vzlist` unless $VEID && $action && $action =~ m{($valid_actions)}; |
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my $CVEID = "10$VEID"; |
my $CVEID = "10$VEID"; |
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} |
} |
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if ( $action =~ m/(create|umount|destroy)/ ) { |
if ( $action =~ m{(create|umount|destroy)} ) { |
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my $clone; |
my $clone; |
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my $snap; |
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open(my $m, '-|', 'mount') || die "can't open mount: $!"; |
open(my $m, '-|', 'mount') || die "can't open mount: $!"; |
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while(<$m>) { |
while(<$m>) { |
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my @v = split(/\s+/,$_); |
my @v = split(/\s+/,$_); |
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if ( $v[2] =~ m!/(private|root)/$CVEID$! && $v[5] =~ m/bind/ ) { |
if ( $v[2] =~ m{/(private|root)/($VEID|$CVEID)$} && $v[5] =~ m{bind} ) { |
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umount( $v[2] ); |
umount( $v[2] ); |
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} elsif ( $v[2] =~ m!vz-clone-$CVEID$! ) { |
} elsif ( $v[2] =~ m{vz-clone-$CVEID$} ) { |
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$clone = $v[2]; |
$clone = $v[2]; |
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} elsif ( $v[2] =~ m{-snap} ) { |
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$snap = $v[0]; |
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umount( $snap ); |
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} |
} |
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} |
} |
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umount( $clone ) if $clone; |
umount( $clone ) if $clone; |
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if ( $action eq 'destroy' && -e $snap ) { |
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lvremove( '-f', $snap ); |
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} |
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vzctl('destroy', $VEID) if $action eq 'destroy'; |
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exit if $action eq 'umount'; |
exit if $action =~ m{(umount|destroy)}; |
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} |
} |
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my $vz_lv; |
my $vz_lv; |
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open(my $m, '<', '/etc/fstab') || die "can't open /etc/fstab: $!"; |
open(my $m, '-|', "df $vz_root") || die "can't open df $vz_root: $!"; |
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while(<$m>) { |
while(<$m>) { |
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next if m/^#/; |
next if ! m{^/}; |
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my @v = split(/\s+/,$_); |
my @v = split(/\s+/,$_); |
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if ( $v[1] =~ m/\Q$vz\E/ ) { |
$vz_lv = $v[0]; |
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$vz_lv = $v[0]; |
warn "found LV $vz_lv for $vz_root\n"; |
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warn "found LV $vz_lv for $vz\n"; |
last; |
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last; |
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} |
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} |
} |
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sub fs_quota { |
sub fs_quota { |
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if ( $vz_lv ) { |
if ( $vz_lv ) { |
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my ( $vz_lv_path, $vz_lv_name ) = ( $1, $2 ) if ( $vz_lv =~ m!^(.+)/([^/]+)$! ); |
my ( $vz_lv_path, $vz_lv_name ) = ( $1, $2 ) if ( $vz_lv =~ m{^(.+)/([^/]+)$} ); |
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my $snap = $vz_lv_name . '-snap'; |
my $snap = $vz_lv_name . '-snap'; |
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my $clone = "vz-clone-$CVEID"; |
my $clone = "vz-clone-$CVEID"; |
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do_mount( "$vz_lv_path/$snap", "/tmp/$snap" ); |
do_mount( "$vz_lv_path/$snap", "/tmp/$snap" ); |
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} |
mount_bind( "/tmp/$snap/private/$VEID", "$vz_root/private/$CVEID" ); |
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mount_bind( "/tmp/$snap/root/$VEID", "$vz_root/root/$CVEID" ); |
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my $vg_name = $1 if ( $vz_lv_path =~ m!/([^/]+)/*$! ); |
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if ( lvdisplay( "$vz_lv_path/$clone" ) ) { |
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warn "using existing $vz_lv_path/$clone\n"; |
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} else { |
} else { |
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my $clone_size = fs_quota( $VEID ) . 'k'; |
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print "Creating LV $clone ($clone_size bytes) in VG $vg_name for $VEID clone filesystem\n"; |
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lvcreate( '--size', $clone_size, '--name', $clone, $vg_name ); |
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mke2fs( '-m', 0, '-j', "$vz_lv_path/$clone" ); |
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} |
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do_mount( "$vz_lv_path/$clone", "/tmp/$clone" ); |
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test_mkdir( "/tmp/$clone/private" ); |
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test_mkdir( "/tmp/$clone/root" ); |
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mount_bind( "/tmp/$clone/private", "$vz/private/$CVEID" ); |
if ( lvdisplay( "$vz_lv_path/$clone" ) ) { |
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mount_bind( "/tmp/$clone/root", "$vz/root/$CVEID" ); |
warn "using existing $vz_lv_path/$clone\n"; |
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} else { |
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if ( $use_snapshot ) { |
my $vg_name = $1 if ( $vz_lv_path =~ m{/([^/]+)/*$} ); |
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my $clone_size = fs_quota( $VEID ) . 'k'; |
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copy_files( "/tmp/$snap/private/$VEID", "/tmp/$clone/private" ); |
print "Creating LV $clone ($clone_size bytes) in VG $vg_name for $VEID clone filesystem\n"; |
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lvcreate( '--size', $clone_size, '--name', $clone, $vg_name ); |
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mke2fs( '-m', 0, '-j', "$vz_lv_path/$clone" ); |
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} |
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print "Cleanup\n"; |
do_mount( "$vz_lv_path/$clone", "/tmp/$clone" ); |
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#umount( "$vz_lv_path/$clone" ); |
test_mkdir( "/tmp/$clone/private" ); |
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umount( "$vz_lv_path/$snap" ); |
test_mkdir( "/tmp/$clone/root" ); |
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lvremove( '-f', "$vz_lv_path/$snap" ); |
copy_files( "$vz_root/private/$VEID", "/tmp/$clone/private" ); |
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} else { |
mount_bind( "/tmp/$clone/private", "$vz_root/private/$CVEID" ); |
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copy_files( "$vz/private/$VEID", "/tmp/$clone/private" ); |
mount_bind( "/tmp/$clone/root", "$vz_root/root/$CVEID" ); |
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} |
} |
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} else { |
} else { |
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copy_files( "$vz/private/$VEID", "$vz/private/$CVEID" ); |
copy_files( "$vz_root/private/$VEID", "$vz_root/private/$CVEID" ); |
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} |
} |
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exit if $action eq 'mount'; |
exit if $action eq 'mount'; |
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my $note = "# modified by $0\n"; |
my $note = "# modified by $0\n"; |
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my $ve_clone_ip; |
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sub fix_ip { |
sub fix_ip { |
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my $ip = shift; |
my $ip = shift; |
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$ip =~ s/['"]//g; |
$ip =~ s/['"]//g; |
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# $ip =~ s/^\d+\./10./; |
# $ip =~ s/^\d+\./10./; |
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$ip =~ s/^\d+\.\d+\./192.168./; |
$ip =~ s/^\d+\.\d+\./192.168./; |
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warn "$CVEID new IP number: $ip\n"; |
warn "$CVEID new IP number: $ip\n"; |
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$ve_clone_ip = $ip; |
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return $note . qq{IP_ADDRESS="$ip"}; |
return $note . qq{IP_ADDRESS="$ip"}; |
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} |
} |
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return $note . qq{HOSTNAME="$hostname"}; |
return $note . qq{HOSTNAME="$hostname"}; |
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} |
} |
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open(my $o, '<', "$conf/$VEID.conf") || die "can't open $conf/$VEID.conf: $!"; |
open(my $o, '<', "$vz_conf/$VEID.conf") || die "can't open $vz_conf/$VEID.conf: $!"; |
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open(my $n, '>', "$conf/$CVEID.conf") || die "can't open $conf/$CVEID.conf: $!"; |
open(my $n, '>', "$vz_conf/$CVEID.conf") || die "can't open $vz_conf/$CVEID.conf: $!"; |
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while(<$o>) { |
while(<$o>) { |
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s!^HOSTNAME=(.*)$!fix_hostname($1)!ie; |
s{^HOSTNAME=(.*)$}{fix_hostname($1)}ie; |
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s!^IP_ADDRESS=(.*)$!fix_ip($1)!ie; |
s{^IP_ADDRESS=(.*)$}{fix_ip($1)}ie; |
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s!^(ONBOOT=).*$!# modified by $0\n$1"no"!i; |
s{^(ONBOOT=).*$}{# modified by $0\n$1"no"}i; |
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print $n $_; |
print $n $_; |
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} |
} |
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print "\nPlease review config file: $conf/$CVEID.conf\nAdd NAT for new VE with: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE\nStart clone of $VEID with: vzctl start $CVEID\n" |
print $n qq{DISK_QUOTA="no"\n} if $use_snapshot; # don't wait for quota rebuild on startup |
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my $iptables="iptables -t nat -A POSTROUTING -s $ve_clone_ip -o eth0 -j MASQUERADE"; |
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system( $iptables ); |
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print "\nConfig file: $vz_conf/$CVEID.conf\nAdded NAT for new VE with: $iptables\nStart clone of $VEID with: vzctl start $CVEID\n" |
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