templates/lxc-slackware.in

   1 #!/bin/bash
   2
   3 #
   4 # lxc: linux Container library
   5
   6 # Authors:
   7 # Daniel Lezcano <daniel.lezcano@free.fr>
   8
   9 # Template for slackware by Matteo Bernardini <ponce@slackbuilds.org>
  10 # some parts are taken from the debian one (used as model)
  11
  12 # This library is free software; you can redistribute it and/or
  13 # modify it under the terms of the GNU Lesser General Public
  14 # License as published by the Free Software Foundation; either
  15 # version 2.1 of the License, or (at your option) any later version.
  16
  17 # This library is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 # Lesser General Public License for more details.
  21
  22 # You should have received a copy of the GNU Lesser General Public
  23 # License along with this library; if not, write to the Free Software
  24 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25
  26 # Detect use under userns (unsupported)
  27 for arg in "$@"; do
  28     [ "$arg" = "--" ] && break
  29     if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
  30         echo "This template can't be used for unprivileged containers." 1>&2
  31         echo "You may want to try the \"download\" template instead." 1>&2
  32         exit 1
  33     fi
  34 done
  35
  36 # Add some directories to PATH in case we create containers with sudo
  37 export PATH=/sbin:/usr/sbin:$PATH
  38
  39 cache=${cache:-/var/cache/lxc/slackware}
  40
  41 # Use the primary Slackware site by default, but please consider changing
  42 # this to a closer mirror site.
  43 MIRROR=${MIRROR:-http://ftp.slackware.com/pub/slackware}
  44
  45 if [ -z "$arch" ]; then
  46 case "$( uname -m )" in
  47     i?86) arch=i486 ;;
  48     arm*) arch=arm ;;
  49        *) arch=$( uname -m ) ;;
  50 esac
  51 fi
  52
  53 LXC_TEMPLATE_CONFIG="@LXCTEMPLATECONFIG@"
  54
  55 configure_slackware()
  56 {
  57 rootfs=$1
  58 hostname=$2
  59
  60 echo "Configuring..." ; echo
  61
  62 # The next part contains excerpts taken from SeTconfig (written by
  63 # Patrick Volkerding) from the slackware setup disk.
  64 # But before pasting them just set a variable to use them as they are
  65 T_PX=$rootfs
  66
  67 ( cd $T_PX ; chmod 755 ./ )
  68 ( cd $T_PX ; chmod 755 ./var )
  69 if [ -d $T_PX/usr/src/linux ]; then
  70   chmod 755 $T_PX/usr/src/linux
  71 fi
  72 if [ ! -d $T_PX/proc ]; then
  73   mkdir $T_PX/proc
  74   chown root.root $T_PX/proc
  75 fi
  76 if [ ! -d $T_PX/sys ]; then
  77   mkdir $T_PX/sys
  78   chown root.root $T_PX/sys
  79 fi
  80 chmod 1777 $T_PX/tmp
  81 if [ ! -d $T_PX/var/spool/mail ]; then
  82   mkdir -p $T_PX/var/spool/mail
  83   chmod 755 $T_PX/var/spool
  84   chown root.mail $T_PX/var/spool/mail
  85   chmod 1777 $T_PX/var/spool/mail
  86 fi
  87
  88 echo "#!/bin/sh" > $T_PX/etc/rc.d/rc.keymap
  89 echo "# Load the keyboard map.  More maps are in /usr/share/kbd/keymaps." \
  90   >> $T_PX/etc/rc.d/rc.keymap
  91 echo "if [ -x /usr/bin/loadkeys ]; then" >> $T_PX/etc/rc.d/rc.keymap
  92 echo " /usr/bin/loadkeys us" >> $T_PX/etc/rc.d/rc.keymap
  93 echo "fi" >> $T_PX/etc/rc.d/rc.keymap
  94 chmod 755 $T_PX/etc/rc.d/rc.keymap
  95
  96 # Network configuration is left to the user, that have to edit
  97 # /etc/rc.d/rc.inet1.conf and /etc/resolv.conf of the container
  98 # just set the hostname
  99 cat <<EOF > $rootfs/etc/HOSTNAME
 100 $hostname.example.net
 101 EOF
 102 cp $rootfs/etc/HOSTNAME $rootfs/etc/hostname
 103
 104 # make needed devices, from Chris Willing's MAKEDEV.sh
 105 # http://www.vislab.uq.edu.au/howto/lxc/MAKEDEV.sh
 106 DEV=$rootfs/dev
 107 mkdir -p ${DEV}
 108 mknod -m 666 ${DEV}/null c 1 3
 109 mknod -m 666 ${DEV}/zero c 1 5
 110 mknod -m 666 ${DEV}/random c 1 8
 111 mknod -m 666 ${DEV}/urandom c 1 9
 112 mkdir -m 755 ${DEV}/pts
 113 mkdir -m 1777 ${DEV}/shm
 114 mknod -m 666 ${DEV}/tty c 5 0
 115 mknod -m 600 ${DEV}/console c 5 1
 116 mknod -m 666 ${DEV}/tty0 c 4 0
 117 mknod -m 666 ${DEV}/tty1 c 4 1
 118 mknod -m 666 ${DEV}/tty2 c 4 2
 119 mknod -m 666 ${DEV}/tty3 c 4 3
 120 mknod -m 666 ${DEV}/tty4 c 4 4
 121 mknod -m 666 ${DEV}/tty5 c 4 5
 122 mknod -m 666 ${DEV}/full c 1 7
 123 mknod -m 600 ${DEV}/initctl p
 124 mknod -m 660 ${DEV}/loop0 b 7 0
 125 mknod -m 660 ${DEV}/loop1 b 7 1
 126 ln -s pts/ptmx ${DEV}/ptmx
 127 ln -s /proc/self/fd ${DEV}/fd
 128
 129 echo "Adding an etc/fstab"
 130 cat >$rootfs/etc/fstab <<EOF
 131 none /run tmpfs defaults,mode=0755 0 0
 132 EOF
 133
 134 # simplify rc.6 and rc.S, http://www.vislab.uq.edu.au/howto/lxc/create_container.html
 135 # and some other small fixes for a clean boot
 136 cat >$rootfs/tmp/rcs.patch <<'EOF'
 137 --- ./etc/rc.orig/rc.6  2012-08-15 01:03:12.000000000 +0200
 138 +++ ./etc/rc.d/rc.6     2013-02-17 10:26:30.888839354 +0100
 139 @@ -9,6 +9,12 @@
 140  # Author:      Miquel van Smoorenburg <miquels@drinkel.nl.mugnet.org>
 141  # Modified by:  Patrick J. Volkerding, <volkerdi@slackware.com>
 142  #
 143 +# minor tweaks for an lxc container
 144 +# by Matteo Bernardini <ponce@slackbuilds.org>,
 145 +# based also on Chris Willing's modifications
 146 +# http://www.vislab.uq.edu.au/howto/lxc/rc.6
 147 +# a check for a container variable is made to jump sections
 148 +container="lxc"
 149
 150  # Set the path.
 151  PATH=/sbin:/etc:/bin:/usr/bin
 152 @@ -37,6 +43,9 @@
 153                 ;;
 154  esac
 155
 156 +# lxc container check
 157 +if [ ! $container = "lxc" ]; then
 158 +
 159  # Save the system time to the hardware clock using hwclock --systohc.
 160  if [ -x /sbin/hwclock ]; then
 161    # Check for a broken motherboard RTC clock (where ioports for rtc are
 162 @@ -53,6 +62,8 @@
 163    fi
 164  fi
 165
 166 +fi # end container check
 167 +
 168  # Run any local shutdown scripts:
 169  if [ -x /etc/rc.d/rc.local_shutdown ]; then
 170    /etc/rc.d/rc.local_shutdown stop
 171 @@ -148,6 +159,9 @@
 172    sleep 2
 173  fi
 174
 175 +# lxc container check
 176 +if [ ! $container = "lxc" ]; then
 177 +
 178  # Shut down PCMCIA devices:
 179  if [ -x /etc/rc.d/rc.pcmcia ]; then
 180    . /etc/rc.d/rc.pcmcia stop
 181 @@ -155,11 +169,16 @@
 182    /bin/sleep 5
 183  fi
 184
 185 +fi # end container check
 186 +
 187  # Turn off process accounting:
 188  if [ -x /sbin/accton -a -r /var/log/pacct ]; then
 189    /sbin/accton off
 190  fi
 191
 192 +# lxc container check
 193 +if [ ! $container = "lxc" ]; then
 194 +
 195  # Terminate acpid before syslog:
 196  if [ -x /etc/rc.d/rc.acpid -a -r /var/run/acpid.pid ]; then # quit
 197    . /etc/rc.d/rc.acpid stop
 198 @@ -170,6 +189,8 @@
 199    sh /etc/rc.d/rc.udev force-stop
 200  fi
 201
 202 +fi # end container check
 203 +
 204  # Kill all remaining processes.
 205  if [ ! "$1" = "fast" ]; then
 206    echo "Sending all processes the SIGTERM signal."
 207 @@ -179,6 +200,9 @@
 208    /sbin/killall5 -9
 209  fi
 210
 211 +# lxc container check
 212 +if [ ! $container = "lxc" ]; then
 213 +
 214  # Try to turn off quota.
 215  if /bin/grep -q quota /etc/fstab ; then
 216    if [ -x /sbin/quotaoff ]; then
 217 @@ -187,6 +211,8 @@
 218    fi
 219  fi
 220
 221 +fi # end container check
 222 +
 223  # Carry a random seed between reboots.
 224  echo "Saving random seed from /dev/urandom in /etc/random-seed."
 225  # Use the pool size from /proc, or 512 bytes:
 226 @@ -205,6 +231,9 @@
 227    rm -f /var/lock/subsys/*
 228  fi
 229
 230 +# lxc container check
 231 +if [ ! $container = "lxc" ]; then
 232 +
 233  # Turn off swap:
 234  echo "Turning off swap."
 235  /sbin/swapoff -a
 236 @@ -216,6 +245,8 @@
 237  echo "Remounting root filesystem read-only."
 238  /bin/mount -v -n -o remount,ro /
 239
 240 +fi # end container check
 241 +
 242  # This never hurts:
 243  /bin/sync
 244
 245 @@ -240,12 +271,17 @@
 246    done
 247  fi
 248
 249 +# lxc container check
 250 +if [ ! $container = "lxc" ]; then
 251 +
 252  # Deactivate LVM volume groups:
 253  if [ -r /etc/lvmtab -o -d /etc/lvm/backup ]; then
 254    echo "Deactivating LVM volume groups:"
 255    /sbin/vgchange -an --ignorelockingfailure
 256  fi
 257
 258 +fi # end container check
 259 +
 260  # This never hurts again (especially since root-on-LVM always fails
 261  # to deactivate the / logical volume...  but at least it was
 262  # remounted as read-only first)
 263 @@ -258,6 +294,9 @@
 264  # This is to ensure all processes have completed on SMP machines:
 265  wait
 266
 267 +# lxc container check
 268 +if [ ! $container = "lxc" ]; then
 269 +
 270  if [ -x /sbin/genpowerd ]; then
 271    # See if this is a powerfail situation:
 272    if /bin/egrep -q "FAIL|SCRAM" /etc/upsstatus 2> /dev/null ; then
 273 @@ -274,6 +313,13 @@
 274    fi
 275  fi
 276
 277 +else
 278 +
 279 +# confirm successful shutdown of the container
 280 +echo ; echo "* container stopped. *" ; echo
 281 +
 282 +fi # end container check
 283 +
 284  # Now halt (poweroff with APM or ACPI enabled kernels) or reboot.
 285  if [ "$command" = "reboot" ]; then
 286    echo "Rebooting."
 287 --- ./etc/rc.orig/rc.S  2012-09-13 21:38:34.000000000 +0200
 288 +++ ./etc/rc.d/rc.S     2013-02-17 09:39:41.579799641 +0100
 289 @@ -4,9 +4,18 @@
 290  #
 291  # Mostly written by:  Patrick J. Volkerding, <volkerdi@slackware.com>
 292  #
 293 +# minor tweaks for an lxc container
 294 +# by Matteo Bernardini <ponce@slackbuilds.org>,
 295 +# based also on Chris Willing's modifications
 296 +# http://www.vislab.uq.edu.au/howto/lxc/rc.S
 297 +# a check for a container variable is made to jump sections
 298 +container="lxc"
 299
 300  PATH=/sbin:/usr/sbin:/bin:/usr/bin
 301
 302 +# lxc container check
 303 +if [ ! $container = "lxc" ]; then
 304 +
 305  # Try to mount /proc:
 306  /sbin/mount -v proc /proc -n -t proc 2> /dev/null
 307
 308 @@ -254,10 +263,27 @@
 309    read junk;
 310  fi # Done checking root filesystem
 311
 312 +else
 313 +  # We really don't want to start udev in the container
 314 +  if [ -f /etc/rc.d/rc.udev ]; then
 315 +    chmod -x /etc/rc.d/rc.udev
 316 +  fi
 317 +  # Alsa won't work
 318 +  if [ -f /etc/rc.d/rc.alsa ]; then
 319 +    chmod -x /etc/rc.d/rc.alsa
 320 +  fi
 321 +  # This too
 322 +  if [ -f /etc/rc.d/rc.loop ]; then
 323 +    chmod -x /etc/rc.d/rc.loop
 324 +  fi
 325 +fi # end container check
 326
 327  # Any /etc/mtab that exists here is old, so we start with a new one:
 328  /bin/rm -f /etc/mtab{,~,.tmp} && /bin/touch /etc/mtab
 329
 330 +# lxc container check
 331 +if [ ! $container = "lxc" ]; then
 332 +
 333  # Add entry for / to /etc/mtab:
 334  /sbin/mount -f -w /
 335
 336 @@ -337,6 +363,8 @@
 337  # mounted read-write.
 338  /sbin/swapon -a 2> /dev/null
 339
 340 +fi # end container check
 341 +
 342  # Clean up some temporary files:
 343  rm -f /var/run/* /var/run/*/* /var/run/*/*/* /etc/nologin \
 344    /etc/dhcpc/*.pid /etc/forcefsck /etc/fastboot \
 345 @@ -364,7 +392,7 @@
 346  # if the first line of that file begins with the word 'Linux'.
 347  # You are free to modify the rest of the file as you see fit.
 348  if [ -x /bin/sed ]; then
 349 -  /bin/sed -i "{1s/^Linux.*/$(/bin/uname -sr)\./}" /etc/motd
 350 +  /bin/sed -i "{1s/^Linux.*/$(/bin/uname -sr) lxc container\./}" /etc/motd
 351  fi
 352
 353  # If there are SystemV init scripts for this runlevel, run them.
 354 @@ -372,6 +400,9 @@
 355    . /etc/rc.d/rc.sysvinit
 356  fi
 357
 358 +# lxc container check
 359 +if [ ! $container = "lxc" ]; then
 360 +
 361  # Run serial port setup script:
 362  # CAREFUL!  This can make some systems hang if the rc.serial script isn't
 363  # set up correctly.  If this happens, you may have to edit the file from a
 364 @@ -380,6 +411,8 @@
 365    sh /etc/rc.d/rc.serial start
 366  fi
 367
 368 +fi # end container check
 369 +
 370  # Carry an entropy pool between reboots to improve randomness.
 371  if [ -f /etc/random-seed ]; then
 372    echo "Using /etc/random-seed to initialize /dev/urandom."
 373 --- ./etc/rc.orig/rc.M  2012-09-25 19:47:07.000000000 +0200
 374 +++ ./etc/rc.d/rc.M     2013-02-17 09:39:41.579799641 +0100
 375 @@ -10,6 +10,10 @@
 376  # Author:      Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
 377  #              Heavily modified by Patrick Volkerding <volkerdi@slackware.com>
 378  #
 379 +# minor tweaks for an lxc container
 380 +# by Matteo Bernardini <ponce@slackbuilds.org>:
 381 +# a check for a container variable is made to jump sections
 382 +container="lxc"
 383
 384  # Tell the viewers what's going to happen.
 385  echo "Going multiuser..."
 386 @@ -20,6 +24,9 @@
 387    /sbin/ldconfig &
 388  fi
 389
 390 +# lxc container check
 391 +if [ ! $container = "lxc" ]; then
 392 +
 393  # Screen blanks after 15 minutes idle time, and powers down in one hour
 394  # if the kernel supports APM or ACPI power management:
 395  /bin/setterm -blank 15 -powersave powerdown -powerdown 60
 396 @@ -33,6 +40,8 @@
 397    /bin/hostname darkstar
 398  fi
 399
 400 +fi # end container check
 401 +
 402  # Set the permissions on /var/log/dmesg according to whether the kernel
 403  # permits non-root users to access kernel dmesg information:
 404  if [ -r /proc/sys/kernel/dmesg_restrict ]; then
 405 @@ -135,6 +144,9 @@
 406  chmod 755 / 2> /dev/null
 407  chmod 1777 /tmp /var/tmp
 408
 409 +# lxc container check
 410 +if [ ! $container = "lxc" ]; then
 411 +
 412  # Start APM or ACPI daemon.
 413  # If APM is enabled in the kernel, start apmd:
 414  if [ -e /proc/apm ]; then
 415 @@ -146,6 +158,8 @@
 416    . /etc/rc.d/rc.acpid start
 417  fi
 418
 419 +fi # end container check
 420 +
 421  # Update any existing icon cache files:
 422  if find /usr/share/icons 2> /dev/null | grep -q icon-theme.cache ; then
 423    for theme_dir in /usr/share/icons/* ; do
 424 --- ./etc/rc.orig/rc.inet1      2012-08-05 19:13:27.000000000 +0200
 425 +++ ./etc/rc.d/rc.inet1 2013-02-17 09:39:41.579799641 +0100
 426 @@ -3,6 +3,11 @@
 427  # This script is used to bring up the various network interfaces.
 428  #
 429  # @(#)/etc/rc.d/rc.inet1 10.2  Sun Jul 24 12:45:56 PDT 2005  (pjv)
 430 +#
 431 +# minor tweaks for an lxc container
 432 +# by Matteo Bernardini <ponce@slackbuilds.org>:
 433 +# a check for a container variable is made to jump sections
 434 +container="lxc"
 435
 436  ############################
 437  # READ NETWORK CONFIG FILE #
 438 @@ -105,6 +110,10 @@
 439      [ "${IFNAME[$i]}" = "${1}" ] && break
 440      i=$(($i+1))
 441    done
 442 +
 443 +  # lxc container check
 444 +  if [ ! $container = "lxc" ]; then
 445 +
 446    # If the interface is a bridge, then create it first:
 447    [ -n "${BRNICS[$i]}" ] && br_open $i
 448    # If the interface isn't in the kernel yet (but there's an alias for it in
 449 @@ -115,6 +124,9 @@
 450        /sbin/modprobe ${1}
 451      fi
 452    fi
 453 +
 454 +  fi # end container check
 455 +
 456    if grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then # interface exists
 457      if ! /sbin/ifconfig | grep -w "${1}" 1>/dev/null || \
 458        ! /sbin/ifconfig ${1} | grep -w inet 1> /dev/null ; then # interface not up or not configured
 459 EOF
 460 ( cd $rootfs ; patch -p1 < tmp/rcs.patch ; rm tmp/rcs.patch )
 461
 462 # restart rc.inet1 to have routing for the loop device
 463 echo "/etc/rc.d/rc.inet1 restart" >> $rootfs/etc/rc.d/rc.local
 464
 465 # reduce the number of local consoles: two should be enough
 466 sed -i '/^c3\|^c4\|^c5\|^c6/s/^/# /' $rootfs/etc/inittab
 467
 468 # better not use this in a container
 469 sed -i 's/.*genpowerfail.*//' $rootfs/etc/inittab
 470
 471 # add a message to rc.local that confirms successful container startup
 472 echo "echo ; echo \"* container $name started. *\" ; echo" >> $rootfs/etc/rc.d/rc.local
 473
 474 # set a default combination for the luggage
 475 echo "root:root" | chroot $rootfs chpasswd
 476 echo "Root default password is 'root', please change it!"
 477
 478 # borrow the time configuration from the local machine
 479 cp -a /etc/localtime $rootfs/etc/localtime
 480
 481 return 0
 482 }
 483
 484 copy_slackware()
 485 {
 486 rootfs=$1
 487
 488 # make a local copy of the installed filesystem
 489 echo -n "Copying rootfs to $rootfs..."
 490 mkdir -p $rootfs
 491 cp -a $cache/rootfs-$release-$arch/* $rootfs/ || exit 1
 492
 493 # fix fstab with the actual path
 494 sed -i "s|$cache/rootfs-$release-$arch|$rootfs|" $rootfs/etc/fstab
 495
 496 return 0
 497 }
 498
 499 install_slackware()
 500 {
 501 rootfs=$1
 502 mkdir -p /var/lock/subsys/
 503 (
 504 flock -n -x 200
 505 if [ $? -ne 0 ]; then
 506         echo "Cache repository is busy."
 507         return 1
 508 fi
 509
 510 if [ "$arch" == "x86_64" ]; then
 511         PKGMAIN=slackware64
 512 elif [ "$arch" == "arm" ]; then
 513         PKGMAIN=slackwarearm
 514 else
 515         PKGMAIN=slackware
 516 fi
 517
 518 export CONF=$cache/slackpkg-conf
 519 export ROOT=$cache/rootfs-$release-$arch
 520
 521 mkdir -p $cache/cache-$release-$arch $cache/rootfs-$release-$arch \
 522   $cache/slackpkg-$release-$arch $CONF/templates
 523
 524 echo "$MIRROR/$PKGMAIN-$release/" > $CONF/mirrors
 525 touch $CONF/blacklist
 526
 527 cat <<EOF > $CONF/slackpkg.conf
 528 # v2.8
 529 ARCH=$arch
 530 TEMP=$cache/cache-$release-$arch
 531 WORKDIR=$cache/slackpkg-$release-$arch
 532 DELALL=off
 533 CHECKMD5=on
 534 CHECKGPG=on
 535 CHECKSIZE=off
 536 PRIORITY=( patches %PKGMAIN extra pasture testing )
 537 POSTINST=on
 538 ONLY_NEW_DOTNEW=off
 539 ONOFF=on
 540 DOWNLOAD_ALL=on
 541 DIALOG=off
 542 BATCH=on
 543 DEFAULT_ANSWER=y
 544 USE_INCLUDES=on
 545 SPINNING=off
 546 EOF
 547
 548 # thanks to Vincent Batts for this list of packages
 549 # (that I modified a little :P)
 550 # http://connie.slackware.com/~vbatts/minimal/
 551 cat <<EOF > $CONF/templates/minimal-lxc.template
 552 aaa_base
 553 aaa_elflibs
 554 aaa_terminfo
 555 bash
 556 bin
 557 bzip2
 558 coreutils
 559 dhcpcd
 560 dialog
 561 diffutils
 562 e2fsprogs
 563 elvis
 564 etc
 565 findutils
 566 gawk
 567 glibc-solibs
 568 gnupg
 569 grep
 570 gzip
 571 iputils
 572 logrotate
 573 mpfr
 574 net-tools
 575 network-scripts
 576 ncurses
 577 openssh
 578 openssl-solibs
 579 pkgtools
 580 procps-ng
 581 sed
 582 shadow
 583 sharutils
 584 slackpkg
 585 sysklogd
 586 sysvinit
 587 sysvinit-functions
 588 sysvinit-scripts
 589 tar
 590 udev
 591 util-linux
 592 wget
 593 which
 594 xz
 595 EOF
 596
 597 TEMPLATE=${TEMPLATE:-minimal-lxc}
 598 if [ ! "$TEMPLATE" = "minimal-lxc" ]; then
 599   if [ -f /etc/slackpkg/templates/$TEMPLATE.template ]; then
 600     cat /etc/slackpkg/templates/$TEMPLATE.template \
 601       > $CONF/templates/$TEMPLATE.template
 602   else
 603     TEMPLATE="minimal-lxc"
 604   fi
 605 fi
 606
 607 # clean previous installs
 608 rm -fR $ROOT/*
 609
 610 slackpkg -default_answer=n update
 611 slackpkg install-template $TEMPLATE
 612
 613 # add a slackpkg default mirror
 614 echo "$MIRROR/$PKGMAIN-$release/" >> $ROOT/etc/slackpkg/mirrors
 615
 616 # blacklist the devs package (we have to use our premade devices).
 617 # do the same with the kernel packages (we use the host's one),
 618 # but leave available headers and sources
 619 echo "devs" >> $ROOT/etc/slackpkg/blacklist
 620 sed -i \
 621   -e "s|^#kernel-|kernel-|" \
 622   -e "s|^kernel-headers|#kernel-headers|" \
 623   -e "s|^kernel-source|#kernel-source|" \
 624   $ROOT/etc/slackpkg/blacklist
 625
 626 # force klog to use the system call interface to the kernel message
 627 # buffers - needed for unprivileged containers
 628 sed -i 's|3\ \-x|3 -x -s|' $ROOT/etc/rc.d/rc.syslog || true
 629
 630 return 0
 631
 632 ) 200>/var/lock/subsys/lxc
 633
 634 return $?
 635 }
 636
 637 copy_configuration()
 638 {
 639 path=$1
 640 rootfs=$2
 641 name=$3
 642
 643 cat <<EOF >> $path/config
 644
 645 lxc.utsname = $name
 646 lxc.arch = $arch
 647
 648 lxc.mount = $rootfs/etc/fstab
 649
 650 lxc.include = ${LXC_TEMPLATE_CONFIG}/slackware.common.conf
 651 EOF
 652
 653 if [ $? -ne 0 ]; then
 654         echo "Failed to add configuration."
 655         return 1
 656 fi
 657
 658 return 0
 659 }
 660
 661 clean()
 662 {
 663 if [ ! -e $cache ]; then
 664         exit 0
 665 fi
 666
 667 # lock, so we won't purge while someone is creating a repository
 668 (
 669 flock -n -x 200
 670 if [ $? != 0 ]; then
 671         echo "Cache repository is busy."
 672         exit 1
 673 fi
 674
 675 echo -n "Purging the download cache..."
 676 rm --preserve-root --one-file-system -rf $cache && echo "Done." || exit 1
 677 exit 0
 678
 679 ) 200>/var/lock/subsys/lxc
 680 }
 681
 682 usage()
 683 {
 684 cat <<EOF
 685 $1 -h|--help -p|--path=<path> --clean
 686 EOF
 687 return 0
 688 }
 689
 690 options=$(getopt -o hp:n:a:r:c -l help,rootfs:,path:,name:,arch:,release:,clean --  "$@")
 691 if [ $? -ne 0 ]; then
 692         usage $(basename $0)
 693         exit 1
 694 fi
 695 eval set -- "$options"
 696
 697 while true
 698 do
 699 case "$1" in
 700         -h|--help)      usage $0 && exit 0;;
 701         -p|--path)      path=$2; shift 2;;
 702         --rootfs)       rootfs=$2; shift 2;;
 703         -a|--arch)      arch=$2; shift 2;;
 704         -r|--release)   release=$2; shift 2;;
 705         -n|--name)      name=$2; shift 2;;
 706         -c|--clean)     clean=$2; shift 2;;
 707         --)             shift 1; break ;;
 708         *)              break ;;
 709 esac
 710 done
 711
 712 if [ ! -z "$clean" -a -z "$path" ]; then
 713         clean || exit 1
 714         exit 0
 715 fi
 716
 717 type installpkg
 718 if [ $? -ne 0 ]; then
 719         echo "'installpkg' command is missing."
 720         exit 1
 721 fi
 722
 723 type slackpkg
 724 if [ $? -ne 0 ]; then
 725         echo "'slackpkg' command is missing."
 726         exit 1
 727 fi
 728
 729 if [ -z "$path" ]; then
 730         echo "'path' parameter is required."
 731         exit 1
 732 fi
 733
 734 if [ "$(id -u)" != "0" ]; then
 735         echo "This script should be run as 'root'."
 736         exit 1
 737 fi
 738
 739 # If no release version was specified, use current
 740 release=${release:-current}
 741
 742 if [ -z "$name" ]; then
 743         # no name given? set a default one
 744         name=slackwarecontainer
 745 fi
 746
 747 # detect rootfs
 748 config="$path/config"
 749 if [ -z "$rootfs" ]; then
 750         if grep -q '^lxc.rootfs' $config 2>/dev/null ; then
 751                 rootfs=$(awk -F= '/^lxc.rootfs =/{ print $2 }' $config)
 752         else
 753                 rootfs=$path/rootfs
 754         fi
 755 fi
 756
 757 echo
 758
 759 set -e
 760
 761 install_slackware $rootfs
 762 if [ $? -ne 0 ]; then
 763         echo "Failed to install slackware."
 764         exit 1
 765 fi
 766
 767 echo
 768
 769 configure_slackware $cache/rootfs-$release-$arch $name
 770 if [ $? -ne 0 ]; then
 771         echo "Failed to configure slackware for a container."
 772         exit 1
 773 fi
 774
 775 echo
 776
 777 rootfs=$path/rootfs
 778 copy_slackware $rootfs
 779 if [ $? -ne 0 ]; then
 780         echo "Failed to copy rootfs."
 781         exit 1
 782 fi
 783
 784 echo
 785
 786 copy_configuration $path $rootfs $name
 787 if [ $? -ne 0 ]; then
 788         echo "Failed to write configuration file."
 789         exit 1
 790 fi
 791
 792 if [ ! -z $clean ]; then
 793         clean || exit 1
 794         exit 0
 795 fi