4 # close stdin, as with ubuntu and debian VMs this script tends to hang and wait for input ..
13 # pkgs parsing utilities + lbuild-bridge.sh
14 export PATH=$(dirname $0):$PATH
16 # old guests have e.g. mount in /bin but this is no longer part of
17 # the standard PATH in recent hosts after usrmove, so let's keep it simple
18 export PATH=$PATH:/bin:/sbin
22 # xxx fixme : we pass $lxc around in functions,
23 # but in fact then we use lxc_root which is a global..
24 # it works, but this really is poor practice
25 # we should have an lxc_root function instead
31 # XXX fixme : when creating a 32bits VM we need to call linux32 as appropriate...s
35 DEFAULT_PERSONALITY=linux64
42 # the network interface name as seen from the container
46 FEDORA_MIRROR="http://mirror.onelab.eu/"
47 FEDORA_MIRROR_KEYS="http://mirror.onelab.eu/keys/"
48 FEDORA_PREINSTALLED="dnf dnf-yum passwd rsyslog vim-minimal dhclient chkconfig rootfiles policycoreutils openssh-server openssh-clients"
49 DEBIAN_PREINSTALLED="openssh-server openssh-client"
51 ########## networking utilities
52 function gethostbyname () {
54 python3 -c "import socket; print(socket.gethostbyname('"$hostname"'))" 2> /dev/null
57 # e.g. 21 -> 255.255.248.0
58 function masklen_to_netmask () {
59 local masklen=$1; shift
63 if not (1 <= masklen <= 32):
64 print("Wrong masklen", masklen)
72 result.append(masklen)
74 print(".".join([ str(256-2**(8-i)) for i in result ]))
78 ##############################
79 # return dnf or debootstrap
80 function package_method () {
81 local fcdistro=$1; shift
83 f[0-9]*|centos[0-9]*|sl[0-9]*)
85 wheezy|jessie|trusty|xenial|bionic|focal|jammy)
88 echo "Unknown package_method for distro $fcdistro" ;;
94 # interfaces for older debian/uuntu
95 # systemd for more recent debian/ubuntu
96 function network_method () {
97 local fcdistro=$1; shift
99 f[0-9]*|centos[0-9]*|sl[0-9]*)
101 wheezy|jessie|trusty|xenial|bionic)
106 echo "Unknown network_method for distro $fcdistro" ;;
110 # return arch from debian distro and personality
111 function canonical_arch () {
112 local personality=$1; shift
113 local fcdistro=$1; shift
114 case $(package_method $fcdistro) in
119 *) echo Unknown-arch-1 ;;
125 *) echo Unknown-arch-2 ;;
128 echo Unknown-arch-3 ;;
132 # the new test framework creates /timestamp in /vservers/<name> *before* populating it
133 function almost_empty () {
134 local dir="$1"; shift ;
135 # non existing is fine
136 [ ! -d $dir ] && return 0;
137 # need to have at most one file
138 local count=$(cd $dir; ls | wc -l)
142 ##############################
143 function fedora_install() {
148 local lxc_root=$(lxcroot $lxc)
150 local cache=/var/cache/lxc/fedora/$arch/${fedora_release}
154 flock --exclusive --timeout 60 200 || { echo "Cache repository is busy." ; return 1 ; }
156 if [ ! -e "$cache/rootfs" ]; then
157 echo "Getting cache download in $cache/rootfs ... "
158 fedora_download $cache || { echo "Failed to download 'fedora base'"; return 1; }
160 echo "Updating cache $cache/rootfs ..."
161 if ! dnf --installroot $cache/rootfs --releasever=${fedora_release} -y --nogpgcheck update ; then
162 echo "Failed to update 'fedora base', continuing with last known good cache"
164 echo "Update finished"
168 echo "Filling $lxc_root from $cache/rootfs ... "
169 rsync -a $cache/rootfs/ $lxc_root/
178 function fedora_download() {
181 local cache=$1; shift
183 # check the mini fedora was not already downloaded
184 INSTALL_ROOT=$cache/partial
187 # download a mini fedora into a cache
188 echo "Downloading fedora minimal ..."
190 mkdir -p $INSTALL_ROOT || { echo "Failed to create '$INSTALL_ROOT' directory" ; return 1; }
192 mkdir -p $INSTALL_ROOT/etc/yum.repos.d
193 mkdir -p $INSTALL_ROOT/dev
194 mknod -m 0444 $INSTALL_ROOT/dev/random c 1 8
195 mknod -m 0444 $INSTALL_ROOT/dev/urandom c 1 9
197 # copy yum config and repo files
198 cp /etc/yum.conf $INSTALL_ROOT/etc/
199 cp /etc/yum.repos.d/fedora{,-updates}.repo $INSTALL_ROOT/etc/yum.repos.d/
201 # append fedora repo files with hardwired releasever and basearch
202 if [ -z "$USE_UPSTREAM_REPOS" ]; then
203 for f in $INSTALL_ROOT/etc/yum.repos.d/* ; do
204 sed -i "s/\$basearch/$arch/g; s/\$releasever/${fedora_release}/g;" $f
208 # looks like all this business about fetching fedora-release is not needed
210 # MIRROR_URL=$FEDORA_MIRROR/fedora/releases/${fedora_release}/Everything/$arch/os
211 # # since fedora18 the rpms are scattered by first name
212 # # first try the second version of fedora-release first
215 # for subindex in 3 2 1; do
216 # RELEASE_URLS="$RELEASE_URLS $MIRROR_URL/Packages/f/fedora-release-${fedora_release}-${subindex}.noarch.rpm"
219 # RELEASE_TARGET=$INSTALL_ROOT/fedora-release-${fedora_release}.noarch.rpm
222 # for attempt in $RELEASE_URLS; do
223 # if curl --silent --fail $attempt -o $RELEASE_TARGET; then
224 # echo "Successfully Retrieved $attempt"
228 # echo "Failed (not to worry about) with attempt $attempt"
231 # [ -n "$found" ] || { echo "Could not retrieve fedora-release rpm - exiting" ; exit 1; }
233 mkdir -p $INSTALL_ROOT/var/lib/rpm
234 rpm --root $INSTALL_ROOT --initdb
235 # when installing f12 this apparently is already present, so ignore result
236 # rpm --root $INSTALL_ROOT -ivh $INSTALL_ROOT/fedora-release-${fedora_release}.noarch.rpm || :
237 # however f12 root images won't get created on a f18 host
238 # (the issue here is the same as the one we ran into when dealing with a vs-box)
239 # in a nutshell, in f12 the glibc-common and filesystem rpms have an apparent conflict
240 # >>> file /usr/lib/locale from install of glibc-common-2.11.2-3.x86_64 conflicts
241 # with file from package filesystem-2.4.30-2.fc12.x86_64
242 # in fact this was - of course - allowed by f12's rpm but later on a fix was made
243 # http://rpm.org/gitweb?p=rpm.git;a=commitdiff;h=cf1095648194104a81a58abead05974a5bfa3b9a
244 # So ideally if we want to be able to build f12 images from f18 we need an rpm that has
245 # this patch undone, like we have in place on our f14 boxes (our f14 boxes need a f18-like rpm)
247 DNF="dnf --installroot=$INSTALL_ROOT --nogpgcheck -y --releasever=${fedora_release}"
248 echo "$DNF install $FEDORA_PREINSTALLED"
249 $DNF install $FEDORA_PREINSTALLED || { echo "Failed to download rootfs, aborting." ; return 1; }
251 mv "$INSTALL_ROOT" "$cache/rootfs"
252 echo "Download complete."
257 ##############################
258 function fedora_configure() {
264 local fcdistro=$1; shift
265 local lxc_root=$(lxcroot $lxc)
267 # disable selinux in fedora
268 mkdir -p $lxc_root/selinux
269 echo 0 > $lxc_root/selinux/enforce
271 # enable networking and set hostname
272 cat <<EOF > ${lxc_root}/etc/sysconfig/network
275 cat <<EOF > ${lxc_root}/etc/hostname
279 local dev_path="${lxc_root}/dev"
282 mknod -m 666 ${dev_path}/null c 1 3
283 mknod -m 666 ${dev_path}/zero c 1 5
284 mknod -m 666 ${dev_path}/random c 1 8
285 mknod -m 666 ${dev_path}/urandom c 1 9
286 mkdir -m 755 ${dev_path}/pts
287 mkdir -m 1777 ${dev_path}/shm
288 mknod -m 666 ${dev_path}/tty c 5 0
289 mknod -m 666 ${dev_path}/tty0 c 4 0
290 mknod -m 666 ${dev_path}/tty1 c 4 1
291 mknod -m 666 ${dev_path}/tty2 c 4 2
292 mknod -m 666 ${dev_path}/tty3 c 4 3
293 mknod -m 666 ${dev_path}/tty4 c 4 4
294 mknod -m 600 ${dev_path}/console c 5 1
295 mknod -m 666 ${dev_path}/full c 1 7
296 mknod -m 600 ${dev_path}/initctl p
297 mknod -m 666 ${dev_path}/ptmx c 5 2
299 fedora_configure_systemd $lxc
301 local guest_ifcfg=${lxc_root}/etc/sysconfig/network-scripts/ifcfg-$VIF_GUEST
302 mkdir -p $(dirname ${guest_ifcfg})
303 # starting with f27, we go for NetworkManager
304 # no more NM_CONTROLLED nonsense
305 if [ -n "$NAT_MODE" ]; then
306 write_guest_ifcfg_natip
308 write_guest_ifcfg_publicip
311 [ -z "$IMAGE" ] && fedora_configure_yum $lxc $fcdistro $pldistro
316 # this code of course is for guests that do run on systemd
317 function fedora_configure_systemd() {
321 local lxc_root=$(lxcroot $lxc)
323 # so ignore if we can't find /etc/systemd at all
324 [ -d ${lxc_root}/etc/systemd ] || return 0
325 # otherwise let's proceed
326 ln -sf /lib/systemd/system/multi-user.target ${lxc_root}/etc/systemd/system/default.target
327 touch ${lxc_root}/etc/fstab
328 ln -sf /dev/null ${lxc_root}/etc/systemd/system/udev.service
329 # Thierry - Feb 2013 relying on getty is looking for trouble
330 # so, turning getty off for now instead
331 # sed -i 's/After=dev-%i.device/After=/' ${lxc_root}/lib/systemd/system/getty\@.service
332 ln -sf /dev/null ${lxc_root}/etc/systemd/system/"getty@.service"
333 rm -f ${lxc_root}/etc/systemd/system/getty.target.wants/*service || :
334 # can't seem to handle this one with systemctl
335 # second part should trigger starting with fedora31, where the network target is not manually manageable
336 chroot ${lxc_root} $personality chkconfig network on || chroot ${lxc_root} $personality systemctl enable NetworkManager
339 # overwrite container yum config
340 function fedora_configure_yum () {
346 local fcdistro=$1; shift
347 local pldistro=$1; shift
349 local lxc_root=$(lxcroot $lxc)
351 chroot ${lxc_root} $personality rpm --rebuilddb
353 if [ -z "$USE_UPSTREAM_REPOS" ]; then
354 echo "Initializing yum.repos.d in $lxc"
355 rm -f $lxc_root/etc/yum.repos.d/*
357 # use mirroring/ stuff instead of a hard-wired config
358 local repofile=$lxc_root/etc/yum.repos.d/building.repo
359 yumconf_mirrors $repofile ${DIRNAME} $fcdistro "" $FEDORA_MIRROR
360 # the keys stuff requires adjustment though
361 sed -i $repofile -e s,'gpgkey=.*',"gpgkey=${FEDORA_MIRROR_KEYS}/RPM-GPG-KEY-fedora-${fedora_release}-primary,"
363 # import fedora key so that gpgckeck does not whine or require stdin
364 # required since fedora24
365 rpm --root $lxc_root --import $FEDORA_MIRROR_KEYS/RPM-GPG-KEY-fedora-${fedora_release}-primary
367 # for using this script as a general-purpose lxc creation wrapper
368 # just mention 'none' as the repo url
369 if [ -n "$MYPLC_REPO_URL" ] ; then
370 if [ ! -d $lxc_root/etc/yum.repos.d ] ; then
371 echo "WARNING : cannot create myplc repo"
373 # exclude kernel from fedora repos
374 yumexclude=$(pl_plcyumexclude $fcdistro $pldistro $DIRNAME)
375 for repo in $lxc_root/etc/yum.repos.d/* ; do
376 [ -f $repo ] && yumconf_exclude $repo "exclude=$yumexclude"
378 # the build repo is not signed at this stage
379 cat > $lxc_root/etc/yum.repos.d/myplc.repo <<EOF
382 baseurl=$MYPLC_REPO_URL
390 ##############################
391 # apparently ubuntu exposes a mirrors list by country at
392 # http://mirrors.ubuntu.com/mirrors.txt
393 # need to specify the right mirror for debian variants like ubuntu and the like
394 function debian_mirror () {
395 local fcdistro=$1; shift
398 echo http://ftp2.fr.debian.org/debian/ ;;
399 trusty|xenial|bionic|focal|jammy)
400 echo http://www-ftp.lip6.fr/pub/linux/distributions/Ubuntu/archive/ ;;
401 *) echo unknown distro $fcdistro; exit 1;;
405 function debian_install () {
409 local lxc_root=$(lxcroot $lxc)
411 local arch=$(canonical_arch $personality $fcdistro)
412 local mirror=$(debian_mirror $fcdistro)
413 debootstrap --no-check-gpg --arch $arch $fcdistro $lxc_root $mirror
414 # just like with fedora we ensure a few packages get installed as well
416 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get update"
417 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get -y install $DEBIAN_PREINSTALLED"
418 chroot ${lxc_root} $personality apt-get update
419 chroot ${lxc_root} $personality apt-get -y install $DEBIAN_PREINSTALLED
421 cat <<EOF > ${lxc_root}/etc/hostname
427 function debian_configure () {
429 local fcdistro=$1; shift
430 case $(network_method $fcdistro) in
432 local guest_interfaces=${lxc_root}/etc/network/interfaces
433 ( [ -n "$NAT_MODE" ] \
434 && write_guest_interfaces_natip \
435 || write_guest_interfaces_publicip ) > $guest_interfaces
438 local systemd_config="${lxc_root}/etc/systemd/network/wired.network"
439 ( [ -n "$NAT_MODE" ] \
440 && write_guest_systemd_natip \
441 || write_guest_systemd_publicip ) > $systemd_config
442 chroot "${lxc_root}" systemctl enable systemd-networkd
447 function write_guest_interfaces_natip () {
450 iface $VIF_GUEST inet dhcp
454 function write_guest_interfaces_publicip () {
457 iface $VIF_GUEST inet static
465 # https://wiki.archlinux.org/title/systemd-networkd
466 # https://www.linuxtricks.fr/wiki/systemd-le-reseau-avec-systemd-networkd
467 function write_guest_systemd_natip () {
477 function write_guest_systemd_publicip () {
483 Address=${GUEST_IP}/${MASKLEN}
488 ##############################
489 function setup_lxc() {
493 #trap failure ERR INT
496 local fcdistro=$1; shift
497 local pldistro=$1; shift
498 local personality=$1; shift
500 local lxc_root=$(lxcroot $lxc)
502 # create lxc container
504 pkg_method=$(package_method $fcdistro)
507 if [ -z "$IMAGE" ]; then
508 fedora_install $lxc || { echo "failed to install fedora root image"; exit 1 ; }
509 # this appears to be safer; observed in Jan. 2016 on a f23 host and a f14 cached image
510 # we were getting this message when attempting the first chroot dnf install
511 # rpmdb: Program version 4.8 doesn't match environment version 5.3
512 chroot $(lxcroot $lxc) $personality rm -rf /var/lib/rpm/__db.00{0,1,2,3,4,5,6,7,8,9}
513 chroot $(lxcroot $lxc) $personality rpm --rebuilddb
515 fedora_configure $lxc $fcdistro || { echo "failed to configure fedora for a container"; exit 1 ; }
518 if [ -z "$IMAGE" ]; then
519 debian_install $lxc || { echo "failed to install debian/ubuntu root image"; exit 1 ; }
521 debian_configure $lxc $fcdistro || { echo "failed to configure debian/ubuntu for a container"; exit 1 ; }
524 echo "$COMMAND:: unknown package_method - exiting"
529 # Enable cgroup -- xxx -- is this really useful ?
530 [ -d $lxc_root/cgroup ] || mkdir $lxc_root/cgroup
532 ### set up resolv.conf from host
533 # ubuntu precise and on, /etc/resolv.conf is a symlink to ../run/resolvconf/resolv.conf
534 [ -h $lxc_root/etc/resolv.conf ] && rm -f $lxc_root/etc/resolv.conf
535 ### since fedora36, our hosts use systemd-resolved, but the guests can't use that
536 # so the administrator has the option to create /etc/resolv.conf.containers
537 # and if that file exists it will be copied in the containers instead of /etc/resolv.conf
538 if [ -f /etc/resolv.conf.containers ]; then
539 cp /etc/resolv.conf.containers $lxc_root/etc/resolv.conf
541 cp /etc/resolv.conf $lxc_root/etc/resolv.conf
543 ### and /etc/hosts for at least localhost
544 [ -f $lxc_root/etc/hosts ] || echo "127.0.0.1 localhost localhost.localdomain" > $lxc_root/etc/hosts
546 # grant ssh access from host to guest
547 mkdir -p $lxc_root/root/.ssh
548 cat /root/.ssh/id_rsa.pub >> $lxc_root/root/.ssh/authorized_keys
549 chmod 700 $lxc_root/root/.ssh
550 chmod 600 $lxc_root/root/.ssh/authorized_keys
552 # don't keep the input xml, this can be retrieved at all times with virsh dumpxml
553 local config_xml=/tmp/$lxc.xml
554 ( [ -n "$NAT_MODE" ] && write_lxc_xml_natip $lxc || write_lxc_xml_publicip $lxc ) > $config_xml
556 # define lxc container for libvirt
557 virsh -c lxc:/// define $config_xml
562 # this part does not belong in a domain any more
563 # but goes in a network object of its own existence
565 # <name>host-bridge</name>
566 # <forward mode="bridge"/>
567 # <bridge name="br0"/>
571 function write_lxc_xml_publicip () {
573 local lxc_root=$(lxcroot $lxc)
577 <memory>$MEMORY</memory>
579 <type arch='$arch2'>exe</type>
580 <init>/sbin/init</init>
586 <clock offset='utc'/>
587 <on_poweroff>destroy</on_poweroff>
588 <on_reboot>restart</on_reboot>
589 <on_crash>destroy</on_crash>
591 <emulator>/usr/libexec/libvirt_lxc</emulator>
592 <filesystem type='mount'>
593 <source dir='$lxc_root'/>
596 <interface type="bridge">
597 <source bridge="$PUBLIC_BRIDGE"/>
598 <target dev='$VIF_HOST'/>
600 <console type='pty' />
606 # grant build guests the ability to do mknods
607 function write_lxc_xml_natip () {
609 local lxc_root=$(lxcroot $lxc)
613 <memory>$MEMORY</memory>
615 <type arch='$arch2'>exe</type>
616 <init>/sbin/init</init>
620 <capabilities policy='default'>
625 <clock offset='utc'/>
626 <on_poweroff>destroy</on_poweroff>
627 <on_reboot>restart</on_reboot>
628 <on_crash>destroy</on_crash>
630 <emulator>/usr/libexec/libvirt_lxc</emulator>
631 <filesystem type='mount'>
632 <source dir='$lxc_root'/>
635 <interface type="network">
636 <source network="default"/>
638 <console type='pty' />
644 # this one is dhcp-based
645 function write_guest_ifcfg_natip () {
655 # use fixed GUEST_IP as specified by GUEST_HOSTNAME
656 function write_guest_ifcfg_publicip () {
661 HOSTNAME=$GUEST_HOSTNAME
670 function devel_or_test_tools () {
677 local fcdistro=$1; shift
678 local pldistro=$1; shift
679 local personality=$1; shift
681 local lxc_root=$(lxcroot $lxc)
683 local pkg_method=$(package_method $fcdistro)
685 local pkgsfile=$(pl_locateDistroFile $DIRNAME $pldistro $PREINSTALLED)
687 ### install individual packages, then groups
688 # get target arch - use uname -i here (we want either x86_64 or i386)
690 local lxc_arch=$(chroot ${lxc_root} $personality uname -i)
691 # on debian systems we get arch through the 'arch' command
692 [ "$lxc_arch" = "unknown" ] && lxc_arch=$(chroot ${lxc_root} $personality arch)
694 local packages=$(pl_getPackages -a $lxc_arch $fcdistro $pldistro $pkgsfile)
695 local groups=$(pl_getGroups -a $lxc_arch $fcdistro $pldistro $pkgsfile)
697 case "$pkg_method" in
699 # --allowerasing required starting with fedora24
702 chroot ${lxc_root} $personality dnf --version && has_dnf=true
703 if [ -n "$has_dnf" ]; then
704 echo "container has dnf - invoking with --allowerasing"
705 local pkg_installer="dnf -y install --allowerasing"
706 local grp_installer="dnf -y groupinstall --allowerasing"
708 echo "container has only dnf"
709 local pkg_installer="dnf -y install"
710 local grp_installer="dnf -y groupinstall"
712 [ -n "$packages" ] && chroot ${lxc_root} $personality $pkg_installer $packages
713 for group_plus in $groups; do
714 local group=$(echo $group_plus | sed -e "s,+++, ,g")
715 chroot ${lxc_root} $personality $grp_installer "$group"
717 # store current rpm list in /init-lxc.rpms in case we need to check the contents
718 chroot ${lxc_root} $personality rpm -aq > $lxc_root/init-lxc.rpms
722 if grep -iq ubuntu /vservers/$lxc/etc/lsb-release 2> /dev/null; then
723 # on ubuntu, at this point we end up with a single feed in /etc/apt/sources.list
724 # we need at least to add the 'universe' feed for python-rpm
725 ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e s,main,universe, > sources.list.d/universe.list )
726 # also adding a link to updates sounds about right
727 ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e 's, main,-updates main,' > sources.list.d/updates.list )
728 # tell apt about the changes
729 chroot /vservers/$lxc apt-get update
731 for package in $packages ; do
732 # container not started yet
733 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get install -y $package" || :
734 chroot ${lxc_root} $personality apt-get install -y $package || :
736 ### xxx todo install groups with apt..
739 echo "unknown pkg_method $pkg_method"
746 function post_install () {
748 local personality=$1; shift
749 local lxc_root=$(lxcroot $lxc)
750 # setup localtime from the host
751 cp /etc/localtime $lxc_root/etc/localtime
752 sshd_disable_password_auth $lxc
754 [ -n "$NAT_MODE" ] && post_install_natip $lxc $personality || post_install_myplc $lxc $personality
755 # start the VM unless specified otherwise
756 if [ -n "$START_VM" ] ; then
757 echo Starting guest $lxc
758 virsh -c lxc:/// start $lxc
759 if [ -n "$NAT_MODE" ] ; then
762 wait_for_ssh $lxc $GUEST_IP
767 # just in case, let's stay on the safe side
768 function sshd_disable_password_auth () {
770 local lxc_root=$(lxcroot $lxc)
771 sed --in-place=.password -e 's,^#\?PasswordAuthentication.*,PasswordAuthentication no,' \
772 $lxc_root/etc/ssh/sshd_config
775 function post_install_natip () {
782 local personality=$1; shift
783 local lxc_root=$(lxcroot $lxc)
785 ### From myplc-devel-native.spec
786 # be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
787 cat << EOF | chroot ${lxc_root} $personality bash -x
789 # customize root's prompt
790 /bin/cat << PROFILE > /root/.profile
791 export PS1="[$lxc] \\w # "
798 function post_install_myplc () {
804 local personality=$1; shift
805 local lxc_root=$(lxcroot $lxc)
807 # be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
808 cat << EOF | chroot ${lxc_root} $personality bash -x
810 # create /etc/sysconfig/network if missing
811 [ -f /etc/sysconfig/network ] || /bin/echo NETWORKING=yes > /etc/sysconfig/network
813 # turn off regular crond, as plc invokes plc_crond
814 /sbin/chkconfig crond off
816 # customize root's prompt
817 /bin/cat << PROFILE > /root/.profile
818 export PS1="[$lxc] \\w # "
824 ########################################
825 # workaround for broken lxc-enter-namespace
826 # 1st version was relying on virsh net-dhcp-leases
827 # however this was too fragile, would not work for fedora14 containers
828 # WARNING: this code is duplicated in lbuild-nightly.sh
829 function guest_ipv4() {
832 local mac=$(virsh -c lxc:/// domiflist $lxc | egrep 'network|bridge' | awk '{print $5;}')
834 [ -z "$mac" ] && return 0
835 arp -en | grep "$mac" | awk '{print $1;}'
838 function wait_for_ssh () {
844 # if run in public_ip mode, we know the IP of the guest and it is specified here
845 [ -n "$1" ] && { guest_ip=$1; shift; }
847 #wait max 2 min for sshd to start
849 local current_time=$(date +%s)
850 local stop_time=$(($current_time + 120))
853 while [ "$current_time" -lt "$stop_time" ] ; do
854 echo "$counter-th attempt to reach sshd in container $lxc ..."
855 [ -z "$guest_ip" ] && guest_ip=$(guest_ipv4 $lxc)
856 [ -n "$guest_ip" ] && ssh -o "StrictHostKeyChecking no" $guest_ip 'uname -i' && {
857 success=true; echo "SSHD in container $lxc is UP on IP $guest_ip"; break ; } || :
858 # some of our boxes have gone through a long upgrade historically, and
859 # so they don't end up with the same gid mapping for the ssh_keys
860 # group as the ones in the guest that result from a fresh install
861 virsh -c lxc:/// lxc-enter-namespace $lxc /bin/bash -c "chown root:ssh_keys /etc/ssh/*_key" || :
862 counter=$(($counter+1))
864 current_time=$(date +%s)
867 # Thierry: this is fatal, let's just exit with a failure here
868 [ -z $success ] && { echo "SSHD in container $lxc could not be reached (guest_ip=$guest_ip)" ; exit 1 ; }
873 function failure () {
874 echo "$COMMAND : Bailing out"
880 echo "Usage: $COMMAND [options] lxc-name (aka build mode)"
881 echo "Usage: $COMMAND -n hostname [options] lxc-name (aka test mode)"
883 echo " This command creates a fresh lxc instance, for building, or running a test myplc"
884 echo "In its first form, spawned VM gets a private IP bridged with virbr0 over dhcp/nat"
885 echo "With the second form, spawned VM gets a public IP bridged on public bridge br0"
887 echo "Supported options"
888 echo " -n hostname - the hostname to use in container"
889 echo " -f fcdistro - for creating the root filesystem - defaults to $DEFAULT_FCDISTRO"
890 echo " -d pldistro - defaults to $DEFAULT_PLDISTRO - current support for fedoras debians ubuntus"
891 echo " -p personality - defaults to $DEFAULT_PERSONALITY"
892 echo " -r repo-url - used to populate yum.repos.d - required in test mode"
893 echo " -P pkgs_file - defines a set of extra packages to install in guest"
894 echo " by default we use devel.pkgs (build mode) or runtime.pkgs (test mode)"
895 echo " -i image - the location of the rootfs"
896 echo " -m memory - the amount of allocated memory in MB - defaults to $DEFAULT_MEMORY MB"
897 echo " -s do not start VM"
898 echo " -v be verbose"
906 #trap failure ERR INT
908 if [ "$(id -u)" != "0" ]; then
909 echo "This script should be run as 'root'"
914 while getopts "n:f:d:p:r:uP:i:m:sv" opt ; do
916 n) GUEST_HOSTNAME=$OPTARG;;
917 f) fcdistro=$OPTARG;;
918 d) pldistro=$OPTARG;;
919 p) personality=$OPTARG;;
920 r) MYPLC_REPO_URL=$OPTARG;;
921 u) USE_UPSTREAM_REPOS=true;;
922 P) PREINSTALLED=$OPTARG;;
926 v) VERBOSE=true; set -x;;
931 shift $(($OPTIND - 1))
933 # parse fixed arguments
934 [[ -z "$@" ]] && usage
936 local lxc_root=$(lxcroot $lxc)
939 # when using with the -i option, checking that $lxc_root is void
940 # is a little too much stress..
941 almost_empty $lxc_root || \
942 { echo "container $lxc already exists in $lxc_root - exiting" ; exit 1 ; }
943 virsh -c lxc:/// domuuid $lxc >& /dev/null && \
944 { echo "container $lxc already exists in libvirt - exiting" ; exit 1 ; }
947 # if IMAGE, copy the provided rootfs to lxc_root
948 if [ -n "$IMAGE" ] ; then
949 if [ ! -d "$IMAGE" ]; then
950 echo "$IMAGE rootfs folder does not exist - exiting"
953 echo "Copying $IMAGE into $lxc_root with rsync --archive --delete"
954 rsync --archive --delete $IMAGE/ $lxc_root/
958 # check we've exhausted the arguments
959 [[ -n "$@" ]] && usage
961 # NAT_MODE is true unless we specified a hostname
962 [ -n "$GUEST_HOSTNAME" ] || NAT_MODE=true
965 [ -z "$fcdistro" ] && fcdistro=$DEFAULT_FCDISTRO
966 [ -z "$pldistro" ] && pldistro=$DEFAULT_PLDISTRO
967 [ -z "$personality" ] && personality=$DEFAULT_PERSONALITY
968 [ -z "$MEMORY" ] && MEMORY=$DEFAULT_MEMORY
971 MEMORY=$(($MEMORY * 1024))
973 # the set of preinstalled packages - depends on mode
974 if [ -z "$PREINSTALLED" ] ; then
975 if [ -n "$NAT_MODE" ] ; then
976 PREINSTALLED=devel.pkgs
978 PREINSTALLED=runtime.pkgs
982 if [ -n "$NAT_MODE" ] ; then
983 # we can now set GUEST_HOSTNAME safely
984 [ -z "$GUEST_HOSTNAME" ] && GUEST_HOSTNAME=$(echo $lxc | sed -e 's,\.,-,g')
986 # as this command can be used in other contexts, not specifying
987 # a repo is considered a warning
988 # use -r none to get rid of this warning
989 if [ "$MYPLC_REPO_URL" == "none" ] ; then
991 elif [ -z "$MYPLC_REPO_URL" ] ; then
992 echo "WARNING -- setting up a yum repo is recommended"
997 fedora_release=$(echo $fcdistro | cut -df -f2)
999 if [ "$personality" == "linux32" ]; then
1002 elif [ "$personality" == "linux64" ]; then
1006 echo "Unknown personality: $personality"
1009 # compute networking details for the test mode
1010 # (build mode relies entirely on dhcp on the private subnet)
1011 if [ -z "$NAT_MODE" ] ; then
1013 #create_bridge_if_needed $PUBLIC_BRIDGE
1014 lbuild-bridge.sh $PUBLIC_BRIDGE
1016 GUEST_IP=$(gethostbyname $GUEST_HOSTNAME)
1017 # use same NETMASK as bridge interface br0
1018 MASKLEN=$(ip addr show $PUBLIC_BRIDGE | grep -v inet6 | grep inet | awk '{print $2;}' | cut -d/ -f2)
1019 NETMASK=$(masklen_to_netmask $MASKLEN)
1020 GATEWAY=$(ip route show | grep default | awk '{print $3}' | head -1)
1021 VIF_HOST="vif$(echo $GUEST_HOSTNAME | cut -d. -f1)"
1024 setup_lxc $lxc $fcdistro $pldistro $personality
1026 # historically this command is for setting up a build or a test VM
1027 # kind of patchy right now though
1028 devel_or_test_tools $lxc $fcdistro $pldistro $personality
1030 # container gets started here
1031 post_install $lxc $personality