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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/; |
use Shell qw/rsync vzlist lvcreate mount umount lvremove which lvdisplay mke2fs vzctl/; |
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my $vz = '/vz'; |
my $vz = '/vz'; |
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my $conf = '/etc/vz/conf'; |
my $conf = '/etc/vz/conf'; |
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my $snap_size = '100M'; |
my $snap_size = '100M'; |
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my $VEID = shift @ARGV || die "Usage: $0 VEID\n\n",vzlist; |
my ( $action, $VEID ) = @ARGV; |
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my $use_snapshot = 0; |
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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)/; |
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my $CVEID = "10$VEID"; |
my $CVEID = "10$VEID"; |
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sub vzctl_stop { |
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my $veid = shift; |
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my $vzlist = vzlist(); |
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if ( $vzlist =~ m/$veid/ ) { |
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print "stop $veid\n"; |
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vzctl('stop', $veid); |
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} |
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} |
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if ( $action eq 'create' ) { |
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vzctl_stop( $CVEID ); |
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} elsif ( $action eq 'destroy' ) { |
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vzctl_stop( $VEID ); |
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} |
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if ( 1 || $action =~ m/(umount|destroy)/ ) { |
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my $clone; |
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open(my $m, '-|', 'mount') || die "can't open mount: $!"; |
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while(<$m>) { |
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my @v = split(/\s+/,$_); |
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if ( $v[2] =~ m!/(private|root)/$VEID$! && $v[5] =~ m/bind/ ) { |
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umount( $v[2] ); |
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} elsif ( $v[2] =~ m!vz-clone-$VEID$! ) { |
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$clone = $v[2]; |
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} |
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} |
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umount( $clone ) if $clone; |
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} |
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#die "unknown action: $action" unless $action eq 'create'; |
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exit unless $action =~ m/(create|mount)/; |
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my $orig_conf = "/etc/vz/conf/$VEID.conf"; |
my $orig_conf = "/etc/vz/conf/$VEID.conf"; |
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die "$VEID config $orig_conf doesn't exist\n" unless -e $orig_conf; |
die "$VEID config $orig_conf doesn't exist\n" unless -e $orig_conf; |
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sub copy_files { |
sub copy_files { |
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my ( $from, $to ) = @_; |
my ( $from, $to ) = @_; |
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return if $action ne 'create'; |
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warn "rsync $from -> $to\n"; |
warn "rsync $from -> $to\n"; |
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rsync('-raSHAD', "$from/", "$to/" ); |
rsync('-raSHAD', "$from/", "$to/" ); |
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} |
} |
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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_lv_name-clone-$CVEID"; |
my $clone = "vz-clone-$CVEID"; |
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sub do_mount { |
sub do_mount { |
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my ( $from, $to ) = @_; |
my ( $from, $to ) = @_; |
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mount( '--bind', $from, $to ); |
mount( '--bind', $from, $to ); |
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} |
} |
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print "Creating $snap_size snapshot $snap from $vz_lv\n"; |
if ( $use_snapshot ) { |
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lvcreate( '--size', $snap_size, '--snapshot', '--name', $snap, $vz_lv ); |
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do_mount( "$vz_lv_path/$snap", "/tmp/$snap" ); |
print "Creating $snap_size snapshot $snap from $vz_lv\n"; |
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lvcreate( '--size', $snap_size, '--snapshot', '--name', $snap, $vz_lv ); |
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do_mount( "$vz_lv_path/$snap", "/tmp/$snap" ); |
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} |
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my $clone_size = fs_quota( $VEID ) . 'k'; |
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my $vg_name = $1 if ( $vz_lv_path =~ m!/([^/]+)/*$! ); |
my $vg_name = $1 if ( $vz_lv_path =~ m!/([^/]+)/*$! ); |
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if ( lvdisplay( "$vz_lv_path/$clone" ) ) { |
if ( lvdisplay( "$vz_lv_path/$clone" ) ) { |
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warn "using existing $vz_lv_path/$clone\n"; |
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"; |
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 ); |
lvcreate( '--size', $clone_size, '--name', $clone, $vg_name ); |
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mke2fs( '-m', 0, '-j', "$vz_lv_path/$clone" ); |
mke2fs( '-m', 0, '-j', "$vz_lv_path/$clone" ); |
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mount_bind( "/tmp/$clone/private", "$vz/private/$CVEID" ); |
mount_bind( "/tmp/$clone/private", "$vz/private/$CVEID" ); |
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mount_bind( "/tmp/$clone/root", "$vz/root/$CVEID" ); |
mount_bind( "/tmp/$clone/root", "$vz/root/$CVEID" ); |
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copy_files( "/tmp/$snap/private/$VEID", "$vz/private/$CVEID" ); |
if ( $use_snapshot ) { |
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copy_files( "/tmp/$snap/private/$VEID", "/tmp/$clone/private" ); |
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print "Cleanup\n"; |
print "Cleanup\n"; |
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#umount( "$vz_lv_path/$clone" ); |
#umount( "$vz_lv_path/$clone" ); |
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umount( "$vz_lv_path/$snap" ); |
umount( "$vz_lv_path/$snap" ); |
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lvremove( '-f', "$vz_lv_path/$snap" ); |
lvremove( '-f', "$vz_lv_path/$snap" ); |
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} else { |
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copy_files( "$vz/private/$VEID", "/tmp/$clone/private" ); |
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} |
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} else { |
} else { |
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copy_files( "$vz/private/$VEID", "$vz/private/$CVEID" ); |
copy_files( "$vz/private/$VEID", "$vz/private/$CVEID" ); |
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} |
} |
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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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sub fix_ip { |
sub fix_ip { |