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" ;;
93 # ifcfg for fedora up to 36
94 # networkmanager for fedora starting with f37 (probably works with older as well...)
95 # interfaces for older debian/uuntu
96 # systemd for more recent debian/ubuntu
97 function network_config_method () {
98 local fcdistro=$1; shift
100 # have not used centos or scientific linux for a very long time
101 #f[0-9]*|centos[0-9]*|sl[0-9]*)
105 echo networkmanager ;;
106 wheezy|jessie|trusty|xenial|bionic)
111 echo "Unknown network_config_method for distro $fcdistro" ;;
115 # return arch from debian distro and personality
116 function canonical_arch () {
117 local personality=$1; shift
118 local fcdistro=$1; shift
119 case $(package_method $fcdistro) in
124 *) echo Unknown-arch-1 ;;
130 *) echo Unknown-arch-2 ;;
133 echo Unknown-arch-3 ;;
137 # the new test framework creates /timestamp in /vservers/<name> *before* populating it
138 function almost_empty () {
139 local dir="$1"; shift ;
140 # non existing is fine
141 [ ! -d $dir ] && return 0;
142 # need to have at most one file
143 local count=$(cd $dir; ls | wc -l)
147 ##############################
148 function fedora_install() {
153 local lxc_root=$(lxcroot $lxc)
155 local cache=/var/cache/lxc/fedora/$arch/${fedora_release}
159 flock --exclusive --timeout 60 200 || { echo "Cache repository is busy." ; return 1 ; }
161 if [ ! -e "$cache/rootfs" ]; then
162 echo "Getting cache download in $cache/rootfs ... "
163 fedora_download $cache || { echo "Failed to download 'fedora base'"; return 1; }
165 echo "Updating cache $cache/rootfs ..."
166 if ! dnf --installroot $cache/rootfs --releasever=${fedora_release} -y --nogpgcheck update ; then
167 echo "Failed to update 'fedora base', continuing with last known good cache"
169 echo "Update finished"
173 echo "Filling $lxc_root from $cache/rootfs ... "
174 rsync -a $cache/rootfs/ $lxc_root/
183 function fedora_download() {
186 local cache=$1; shift
188 # check the mini fedora was not already downloaded
189 INSTALL_ROOT=$cache/partial
192 # download a mini fedora into a cache
193 echo "Downloading fedora minimal ..."
195 mkdir -p $INSTALL_ROOT || { echo "Failed to create '$INSTALL_ROOT' directory" ; return 1; }
197 mkdir -p $INSTALL_ROOT/etc/yum.repos.d
198 mkdir -p $INSTALL_ROOT/dev
199 mknod -m 0444 $INSTALL_ROOT/dev/random c 1 8
200 mknod -m 0444 $INSTALL_ROOT/dev/urandom c 1 9
202 # copy yum config and repo files
203 cp /etc/yum.conf $INSTALL_ROOT/etc/
204 cp /etc/yum.repos.d/fedora{,-updates}.repo $INSTALL_ROOT/etc/yum.repos.d/
206 # append fedora repo files with hardwired releasever and basearch
207 if [ -z "$USE_UPSTREAM_REPOS" ]; then
208 for f in $INSTALL_ROOT/etc/yum.repos.d/* ; do
209 sed -i "s/\$basearch/$arch/g; s/\$releasever/${fedora_release}/g;" $f
213 # looks like all this business about fetching fedora-release is not needed
215 # MIRROR_URL=$FEDORA_MIRROR/fedora/releases/${fedora_release}/Everything/$arch/os
216 # # since fedora18 the rpms are scattered by first name
217 # # first try the second version of fedora-release first
220 # for subindex in 3 2 1; do
221 # RELEASE_URLS="$RELEASE_URLS $MIRROR_URL/Packages/f/fedora-release-${fedora_release}-${subindex}.noarch.rpm"
224 # RELEASE_TARGET=$INSTALL_ROOT/fedora-release-${fedora_release}.noarch.rpm
227 # for attempt in $RELEASE_URLS; do
228 # if curl --silent --fail $attempt -o $RELEASE_TARGET; then
229 # echo "Successfully Retrieved $attempt"
233 # echo "Failed (not to worry about) with attempt $attempt"
236 # [ -n "$found" ] || { echo "Could not retrieve fedora-release rpm - exiting" ; exit 1; }
238 mkdir -p $INSTALL_ROOT/var/lib/rpm
239 rpm --root $INSTALL_ROOT --initdb
240 # when installing f12 this apparently is already present, so ignore result
241 # rpm --root $INSTALL_ROOT -ivh $INSTALL_ROOT/fedora-release-${fedora_release}.noarch.rpm || :
242 # however f12 root images won't get created on a f18 host
243 # (the issue here is the same as the one we ran into when dealing with a vs-box)
244 # in a nutshell, in f12 the glibc-common and filesystem rpms have an apparent conflict
245 # >>> file /usr/lib/locale from install of glibc-common-2.11.2-3.x86_64 conflicts
246 # with file from package filesystem-2.4.30-2.fc12.x86_64
247 # in fact this was - of course - allowed by f12's rpm but later on a fix was made
248 # http://rpm.org/gitweb?p=rpm.git;a=commitdiff;h=cf1095648194104a81a58abead05974a5bfa3b9a
249 # So ideally if we want to be able to build f12 images from f18 we need an rpm that has
250 # this patch undone, like we have in place on our f14 boxes (our f14 boxes need a f18-like rpm)
252 DNF="dnf --installroot=$INSTALL_ROOT --nogpgcheck -y --releasever=${fedora_release}"
253 echo "$DNF install $FEDORA_PREINSTALLED"
254 $DNF install $FEDORA_PREINSTALLED || { echo "Failed to download rootfs, aborting." ; return 1; }
256 mv "$INSTALL_ROOT" "$cache/rootfs"
257 echo "Download complete."
262 ##############################
263 function fedora_configure() {
269 local fcdistro=$1; shift
270 local lxc_root=$(lxcroot $lxc)
272 # disable selinux in fedora
273 mkdir -p $lxc_root/selinux
274 echo 0 > $lxc_root/selinux/enforce
276 # enable networking and set hostname
277 cat <<EOF > ${lxc_root}/etc/sysconfig/network
280 cat <<EOF > ${lxc_root}/etc/hostname
284 local dev_path="${lxc_root}/dev"
287 mknod -m 666 ${dev_path}/null c 1 3
288 mknod -m 666 ${dev_path}/zero c 1 5
289 mknod -m 666 ${dev_path}/random c 1 8
290 mknod -m 666 ${dev_path}/urandom c 1 9
291 mkdir -m 755 ${dev_path}/pts
292 mkdir -m 1777 ${dev_path}/shm
293 mknod -m 666 ${dev_path}/tty c 5 0
294 mknod -m 666 ${dev_path}/tty0 c 4 0
295 mknod -m 666 ${dev_path}/tty1 c 4 1
296 mknod -m 666 ${dev_path}/tty2 c 4 2
297 mknod -m 666 ${dev_path}/tty3 c 4 3
298 mknod -m 666 ${dev_path}/tty4 c 4 4
299 mknod -m 600 ${dev_path}/console c 5 1
300 mknod -m 666 ${dev_path}/full c 1 7
301 mknod -m 600 ${dev_path}/initctl p
302 mknod -m 666 ${dev_path}/ptmx c 5 2
304 fedora_configure_systemd $lxc
306 fedora_configure_network $lxc
308 [ -z "$IMAGE" ] && fedora_configure_yum $lxc $fcdistro $pldistro
313 function fedora_configure_network() {
315 case $(network_config_method $fcdistro) in
317 # probably no longer useful
318 local guest_ifcfg=${lxc_root}/etc/sysconfig/network-scripts/ifcfg-$VIF_GUEST
319 mkdir -p $(dirname ${guest_ifcfg})
320 if [ -n "$NAT_MODE" ]; then
321 write_guest_ifcfg_natip
323 write_guest_ifcfg_publicip
327 local guest_keyfile=${lxc_root}/etc/NetworkManager/system-connections/'Wired connection 1.nmconnection'
328 mkdir -p $(dirname "${guest_keyfile}")
329 if [ -n "$NAT_MODE" ]; then
330 write_guest_networkmanager_natip
332 write_guest_networkmanager_publicip
333 fi > "$guest_keyfile"
334 chmod 600 "$guest_keyfile"
339 # this code of course is for guests that do run on systemd
340 function fedora_configure_systemd() {
344 local lxc_root=$(lxcroot $lxc)
346 # so ignore if we can't find /etc/systemd at all
347 [ -d ${lxc_root}/etc/systemd ] || return 0
348 # otherwise let's proceed
349 ln -sf /lib/systemd/system/multi-user.target ${lxc_root}/etc/systemd/system/default.target
350 touch ${lxc_root}/etc/fstab
351 ln -sf /dev/null ${lxc_root}/etc/systemd/system/udev.service
352 # Thierry - Feb 2013 relying on getty is looking for trouble
353 # so, turning getty off for now instead
354 # sed -i 's/After=dev-%i.device/After=/' ${lxc_root}/lib/systemd/system/getty\@.service
355 ln -sf /dev/null ${lxc_root}/etc/systemd/system/"getty@.service"
356 rm -f ${lxc_root}/etc/systemd/system/getty.target.wants/*service || :
357 chroot ${lxc_root} $personality systemctl enable NetworkManager
360 # overwrite container yum config
361 function fedora_configure_yum () {
367 local fcdistro=$1; shift
368 local pldistro=$1; shift
370 local lxc_root=$(lxcroot $lxc)
372 chroot ${lxc_root} $personality rpm --rebuilddb
374 if [ -z "$USE_UPSTREAM_REPOS" ]; then
375 echo "Initializing yum.repos.d in $lxc"
376 rm -f $lxc_root/etc/yum.repos.d/*
378 # use mirroring/ stuff instead of a hard-wired config
379 local repofile=$lxc_root/etc/yum.repos.d/building.repo
380 yumconf_mirrors $repofile ${DIRNAME} $fcdistro "" $FEDORA_MIRROR
381 # the keys stuff requires adjustment though
382 sed -i $repofile -e s,'gpgkey=.*',"gpgkey=${FEDORA_MIRROR_KEYS}/RPM-GPG-KEY-fedora-${fedora_release}-primary,"
384 # import fedora key so that gpgckeck does not whine or require stdin
385 # required since fedora24
386 rpm --root $lxc_root --import $FEDORA_MIRROR_KEYS/RPM-GPG-KEY-fedora-${fedora_release}-primary
388 # for using this script as a general-purpose lxc creation wrapper
389 # just mention 'none' as the repo url
390 if [ -n "$MYPLC_REPO_URL" ] ; then
391 if [ ! -d $lxc_root/etc/yum.repos.d ] ; then
392 echo "WARNING : cannot create myplc repo"
394 # exclude kernel from fedora repos
395 yumexclude=$(pl_plcyumexclude $fcdistro $pldistro $DIRNAME)
396 for repo in $lxc_root/etc/yum.repos.d/* ; do
397 [ -f $repo ] && yumconf_exclude $repo "exclude=$yumexclude"
399 # the build repo is not signed at this stage
400 cat > $lxc_root/etc/yum.repos.d/myplc.repo <<EOF
403 baseurl=$MYPLC_REPO_URL
411 ##############################
412 # apparently ubuntu exposes a mirrors list by country at
413 # http://mirrors.ubuntu.com/mirrors.txt
414 # need to specify the right mirror for debian variants like ubuntu and the like
415 function debian_mirror () {
416 local fcdistro=$1; shift
419 echo http://ftp2.fr.debian.org/debian/ ;;
420 trusty|xenial|bionic|focal|jammy)
421 echo http://www-ftp.lip6.fr/pub/linux/distributions/Ubuntu/archive/ ;;
422 *) echo unknown distro $fcdistro; exit 1;;
426 function debian_install () {
430 local lxc_root=$(lxcroot $lxc)
432 local arch=$(canonical_arch $personality $fcdistro)
433 local mirror=$(debian_mirror $fcdistro)
434 debootstrap --no-check-gpg --arch $arch $fcdistro $lxc_root $mirror
435 # just like with fedora we ensure a few packages get installed as well
437 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get update"
438 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get -y install $DEBIAN_PREINSTALLED"
439 chroot ${lxc_root} $personality apt-get update
440 chroot ${lxc_root} $personality apt-get -y install $DEBIAN_PREINSTALLED
442 cat <<EOF > ${lxc_root}/etc/hostname
448 function debian_configure () {
450 local fcdistro=$1; shift
451 case $(network_config_method $fcdistro) in
453 local guest_interfaces=${lxc_root}/etc/network/interfaces
454 ( [ -n "$NAT_MODE" ] \
455 && write_guest_interfaces_natip \
456 || write_guest_interfaces_publicip ) > $guest_interfaces
459 local systemd_config="${lxc_root}/etc/systemd/network/wired.network"
460 ( [ -n "$NAT_MODE" ] \
461 && write_guest_systemd_natip \
462 || write_guest_systemd_publicip ) > $systemd_config
463 chroot "${lxc_root}" systemctl enable systemd-networkd
468 function write_guest_interfaces_natip () {
471 iface $VIF_GUEST inet dhcp
475 function write_guest_interfaces_publicip () {
478 iface $VIF_GUEST inet static
486 # https://wiki.archlinux.org/title/systemd-networkd
487 # https://www.linuxtricks.fr/wiki/systemd-le-reseau-avec-systemd-networkd
488 function write_guest_systemd_natip () {
498 function write_guest_systemd_publicip () {
504 Address=${GUEST_IP}/${MASKLEN}
510 python -c "import uuid; print(uuid.uuid1())"
512 # xxx this seems to be no longer needed ?
513 function write_guest_networkmanager_natip() {
517 function write_guest_networkmanager_publicip() {
520 id=Wired connection 1
523 autoconnect-priority=-999
524 # setting this seems to be counter-productive
525 # interface-name=${VIF_GUEST}
528 address1=${GUEST_IP}/${MASKLEN},${GATEWAY}
529 #dhcp-hostname=${GUEST_HOSTNAME}
534 ##############################
535 function setup_lxc() {
539 #trap failure ERR INT
542 local fcdistro=$1; shift
543 local pldistro=$1; shift
544 local personality=$1; shift
546 local lxc_root=$(lxcroot $lxc)
548 # create lxc container
550 pkg_method=$(package_method $fcdistro)
553 if [ -z "$IMAGE" ]; then
554 fedora_install $lxc || { echo "failed to install fedora root image"; exit 1 ; }
555 # this appears to be safer; observed in Jan. 2016 on a f23 host and a f14 cached image
556 # we were getting this message when attempting the first chroot dnf install
557 # rpmdb: Program version 4.8 doesn't match environment version 5.3
558 chroot $(lxcroot $lxc) $personality rm -rf /var/lib/rpm/__db.00{0,1,2,3,4,5,6,7,8,9}
559 chroot $(lxcroot $lxc) $personality rpm --rebuilddb
561 fedora_configure $lxc $fcdistro || { echo "failed to configure fedora for a container"; exit 1 ; }
564 if [ -z "$IMAGE" ]; then
565 debian_install $lxc || { echo "failed to install debian/ubuntu root image"; exit 1 ; }
567 debian_configure $lxc $fcdistro || { echo "failed to configure debian/ubuntu for a container"; exit 1 ; }
570 echo "$COMMAND:: unknown package_method - exiting"
575 # Enable cgroup -- xxx -- is this really useful ?
576 [ -d $lxc_root/cgroup ] || mkdir $lxc_root/cgroup
578 ### set up resolv.conf from host
579 # ubuntu precise and on, /etc/resolv.conf is a symlink to ../run/resolvconf/resolv.conf
580 [ -h $lxc_root/etc/resolv.conf ] && rm -f $lxc_root/etc/resolv.conf
581 ### since fedora36, our hosts use systemd-resolved, but the guests can't use that
582 # so the administrator has the option to create /etc/resolv.conf.containers
583 # and if that file exists it will be copied in the containers instead of /etc/resolv.conf
584 if [ -f /etc/resolv.conf.containers ]; then
585 cp /etc/resolv.conf.containers $lxc_root/etc/resolv.conf
587 cp /etc/resolv.conf $lxc_root/etc/resolv.conf
589 ### and /etc/hosts for at least localhost
590 [ -f $lxc_root/etc/hosts ] || echo "127.0.0.1 localhost localhost.localdomain" > $lxc_root/etc/hosts
592 # grant ssh access from host to guest
593 mkdir -p $lxc_root/root/.ssh
594 cat /root/.ssh/id_rsa.pub >> $lxc_root/root/.ssh/authorized_keys
595 chmod 700 $lxc_root/root/.ssh
596 chmod 600 $lxc_root/root/.ssh/authorized_keys
598 # don't keep the input xml, this can be retrieved at all times with virsh dumpxml
599 local config_xml=/tmp/$lxc.xml
600 ( [ -n "$NAT_MODE" ] && write_lxc_xml_natip $lxc || write_lxc_xml_publicip $lxc ) > $config_xml
602 # define lxc container for libvirt
603 virsh -c lxc:/// define $config_xml
608 # this part does not belong in a domain any more
609 # but goes in a network object of its own existence
611 # <name>host-bridge</name>
612 # <forward mode="bridge"/>
613 # <bridge name="br0"/>
617 function write_lxc_xml_publicip () {
619 local lxc_root=$(lxcroot $lxc)
623 <memory>$MEMORY</memory>
625 <type arch='$arch2'>exe</type>
626 <init>/sbin/init</init>
632 <clock offset='utc'/>
633 <on_poweroff>destroy</on_poweroff>
634 <on_reboot>restart</on_reboot>
635 <on_crash>destroy</on_crash>
637 <emulator>/usr/libexec/libvirt_lxc</emulator>
638 <filesystem type='mount'>
639 <source dir='$lxc_root'/>
642 <interface type="bridge">
643 <source bridge="$PUBLIC_BRIDGE"/>
644 <target dev='$VIF_HOST'/>
646 <console type='pty' />
652 # grant build guests the ability to do mknods
653 function write_lxc_xml_natip () {
655 local lxc_root=$(lxcroot $lxc)
659 <memory>$MEMORY</memory>
661 <type arch='$arch2'>exe</type>
662 <init>/sbin/init</init>
666 <capabilities policy='default'>
671 <clock offset='utc'/>
672 <on_poweroff>destroy</on_poweroff>
673 <on_reboot>restart</on_reboot>
674 <on_crash>destroy</on_crash>
676 <emulator>/usr/libexec/libvirt_lxc</emulator>
677 <filesystem type='mount'>
678 <source dir='$lxc_root'/>
681 <interface type="network">
682 <source network="default"/>
684 <console type='pty' />
690 # this one is dhcp-based
691 function write_guest_ifcfg_natip () {
701 # use fixed GUEST_IP as specified by GUEST_HOSTNAME
702 function write_guest_ifcfg_publicip () {
707 HOSTNAME=$GUEST_HOSTNAME
716 function devel_or_test_tools () {
723 local fcdistro=$1; shift
724 local pldistro=$1; shift
725 local personality=$1; shift
727 local lxc_root=$(lxcroot $lxc)
729 local pkg_method=$(package_method $fcdistro)
731 local pkgsfile=$(pl_locateDistroFile $DIRNAME $pldistro $PREINSTALLED)
733 ### install individual packages, then groups
734 # get target arch - use uname -i here (we want either x86_64 or i386)
736 local lxc_arch=$(chroot ${lxc_root} $personality uname -i)
737 # on debian systems we get arch through the 'arch' command
738 [ "$lxc_arch" = "unknown" ] && lxc_arch=$(chroot ${lxc_root} $personality arch)
740 local packages=$(pl_getPackages -a $lxc_arch $fcdistro $pldistro $pkgsfile)
741 local groups=$(pl_getGroups -a $lxc_arch $fcdistro $pldistro $pkgsfile)
743 case "$pkg_method" in
745 # --allowerasing required starting with fedora24
748 chroot ${lxc_root} $personality dnf --version && has_dnf=true
749 if [ -n "$has_dnf" ]; then
750 echo "container has dnf - invoking with --allowerasing"
751 local pkg_installer="dnf -y install --allowerasing"
752 local grp_installer="dnf -y groupinstall --allowerasing"
754 echo "container has only dnf"
755 local pkg_installer="dnf -y install"
756 local grp_installer="dnf -y groupinstall"
758 [ -n "$packages" ] && chroot ${lxc_root} $personality $pkg_installer $packages
759 for group_plus in $groups; do
760 local group=$(echo $group_plus | sed -e "s,+++, ,g")
761 chroot ${lxc_root} $personality $grp_installer "$group"
763 # store current rpm list in /init-lxc.rpms in case we need to check the contents
764 chroot ${lxc_root} $personality rpm -aq > $lxc_root/init-lxc.rpms
768 if grep -iq ubuntu /vservers/$lxc/etc/lsb-release 2> /dev/null; then
769 # on ubuntu, at this point we end up with a single feed in /etc/apt/sources.list
770 # we need at least to add the 'universe' feed for python-rpm
771 ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e s,main,universe, > sources.list.d/universe.list )
772 # also adding a link to updates sounds about right
773 ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e 's, main,-updates main,' > sources.list.d/updates.list )
774 # tell apt about the changes
775 chroot /vservers/$lxc apt-get update
777 for package in $packages ; do
778 # container not started yet
779 #virsh -c lxc:/// lxc-enter-namespace $lxc /usr/bin/$personality /bin/bash -c "apt-get install -y $package" || :
780 chroot ${lxc_root} $personality apt-get install -y $package || :
782 ### xxx todo install groups with apt..
785 echo "unknown pkg_method $pkg_method"
792 function post_install () {
794 local personality=$1; shift
795 local lxc_root=$(lxcroot $lxc)
796 # setup localtime from the host
797 cp /etc/localtime $lxc_root/etc/localtime
798 sshd_disable_password_auth $lxc
800 [ -n "$NAT_MODE" ] && post_install_natip $lxc $personality || post_install_myplc $lxc $personality
801 # start the VM unless specified otherwise
802 if [ -n "$START_VM" ] ; then
803 echo Starting guest $lxc
804 virsh -c lxc:/// start $lxc
805 if [ -n "$NAT_MODE" ] ; then
808 wait_for_ssh $lxc $GUEST_IP
813 # just in case, let's stay on the safe side
814 function sshd_disable_password_auth () {
816 local lxc_root=$(lxcroot $lxc)
817 sed --in-place=.password -e 's,^#\?PasswordAuthentication.*,PasswordAuthentication no,' \
818 $lxc_root/etc/ssh/sshd_config
821 function post_install_natip () {
828 local personality=$1; shift
829 local lxc_root=$(lxcroot $lxc)
831 ### From myplc-devel-native.spec
832 # be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
833 cat << EOF | chroot ${lxc_root} $personality bash -x
835 # customize root's prompt
836 /bin/cat << PROFILE > /root/.profile
837 export PS1="[$lxc] \\w # "
844 function post_install_myplc () {
850 local personality=$1; shift
851 local lxc_root=$(lxcroot $lxc)
853 # be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
854 cat << EOF | chroot ${lxc_root} $personality bash -x
856 # create /etc/sysconfig/network if missing
857 [ -f /etc/sysconfig/network ] || /bin/echo NETWORKING=yes > /etc/sysconfig/network
859 # turn off regular crond, as plc invokes plc_crond
860 /sbin/chkconfig crond off >& /dev/null
862 # customize root's prompt
863 /bin/cat << PROFILE > /root/.profile
864 export PS1="[$lxc] \\w # "
870 ########################################
871 # workaround for broken lxc-enter-namespace
872 # 1st version was relying on virsh net-dhcp-leases
873 # however this was too fragile, would not work for fedora14 containers
874 # WARNING: this code is duplicated in lbuild-nightly.sh
875 function guest_ipv4() {
878 local mac=$(virsh -c lxc:/// domiflist $lxc | egrep 'network|bridge' | awk '{print $5;}')
880 [ -z "$mac" ] && return 0
881 arp -en | grep "$mac" | awk '{print $1;}'
884 function wait_for_ssh () {
890 # if run in public_ip mode, we know the IP of the guest and it is specified here
891 [ -n "$1" ] && { guest_ip=$1; shift; }
893 #wait max 2 min for sshd to start
895 local current_time=$(date +%s)
896 local stop_time=$(($current_time + 120))
899 while [ "$current_time" -lt "$stop_time" ] ; do
900 echo "$counter-th attempt to reach sshd in container $lxc ..."
901 [ -z "$guest_ip" ] && guest_ip=$(guest_ipv4 $lxc)
902 [ -n "$guest_ip" ] && ssh -o "StrictHostKeyChecking no" $guest_ip 'uname -i' && {
903 success=true; echo "SSHD in container $lxc is UP on IP $guest_ip"; break ; } || :
904 # some of our boxes have gone through a long upgrade historically, and
905 # so they don't end up with the same gid mapping for the ssh_keys
906 # group as the ones in the guest that result from a fresh install
907 virsh -c lxc:/// lxc-enter-namespace $lxc /bin/bash -c "chown root:ssh_keys /etc/ssh/*_key" || :
908 counter=$(($counter+1))
910 current_time=$(date +%s)
913 # Thierry: this is fatal, let's just exit with a failure here
914 [ -z $success ] && { echo "SSHD in container $lxc could not be reached (guest_ip=$guest_ip)" ; exit 1 ; }
919 function failure () {
920 echo "$COMMAND : Bailing out"
926 echo "Usage: $COMMAND [options] lxc-name (aka build mode)"
927 echo "Usage: $COMMAND -n hostname [options] lxc-name (aka test mode)"
929 echo " This command creates a fresh lxc instance, for building, or running a test myplc"
930 echo "In its first form, spawned VM gets a private IP bridged with virbr0 over dhcp/nat"
931 echo "With the second form, spawned VM gets a public IP bridged on public bridge br0"
933 echo "Supported options"
934 echo " -n hostname - the hostname to use in container"
935 echo " -f fcdistro - for creating the root filesystem - defaults to $DEFAULT_FCDISTRO"
936 echo " -d pldistro - defaults to $DEFAULT_PLDISTRO - current support for fedoras debians ubuntus"
937 echo " -p personality - defaults to $DEFAULT_PERSONALITY"
938 echo " -r repo-url - used to populate yum.repos.d - required in test mode"
939 echo " -P pkgs_file - defines a set of extra packages to install in guest"
940 echo " by default we use devel.pkgs (build mode) or runtime.pkgs (test mode)"
941 echo " -i image - the location of the rootfs"
942 echo " -m memory - the amount of allocated memory in MB - defaults to $DEFAULT_MEMORY MB"
943 echo " -s do not start VM"
944 echo " -v be verbose"
952 #trap failure ERR INT
954 if [ "$(id -u)" != "0" ]; then
955 echo "This script should be run as 'root'"
960 while getopts "n:f:d:p:r:uP:i:m:sv" opt ; do
962 n) GUEST_HOSTNAME=$OPTARG;;
963 f) fcdistro=$OPTARG;;
964 d) pldistro=$OPTARG;;
965 p) personality=$OPTARG;;
966 r) MYPLC_REPO_URL=$OPTARG;;
967 u) USE_UPSTREAM_REPOS=true;;
968 P) PREINSTALLED=$OPTARG;;
972 v) VERBOSE=true; set -x;;
977 shift $(($OPTIND - 1))
979 # parse fixed arguments
980 [[ -z "$@" ]] && usage
982 local lxc_root=$(lxcroot $lxc)
985 # when using with the -i option, checking that $lxc_root is void
986 # is a little too much stress..
987 almost_empty $lxc_root || \
988 { echo "container $lxc already exists in $lxc_root - exiting" ; exit 1 ; }
989 virsh -c lxc:/// domuuid $lxc >& /dev/null && \
990 { echo "container $lxc already exists in libvirt - exiting" ; exit 1 ; }
993 # if IMAGE, copy the provided rootfs to lxc_root
994 if [ -n "$IMAGE" ] ; then
995 if [ ! -d "$IMAGE" ]; then
996 echo "$IMAGE rootfs folder does not exist - exiting"
999 echo "Copying $IMAGE into $lxc_root with rsync --archive --delete"
1000 rsync --archive --delete $IMAGE/ $lxc_root/
1004 # check we've exhausted the arguments
1005 [[ -n "$@" ]] && usage
1007 # NAT_MODE is true unless we specified a hostname
1008 [ -n "$GUEST_HOSTNAME" ] || NAT_MODE=true
1010 # set default values
1011 [ -z "$fcdistro" ] && fcdistro=$DEFAULT_FCDISTRO
1012 [ -z "$pldistro" ] && pldistro=$DEFAULT_PLDISTRO
1013 [ -z "$personality" ] && personality=$DEFAULT_PERSONALITY
1014 [ -z "$MEMORY" ] && MEMORY=$DEFAULT_MEMORY
1017 MEMORY=$(($MEMORY * 1024))
1019 # the set of preinstalled packages - depends on mode
1020 if [ -z "$PREINSTALLED" ] ; then
1021 if [ -n "$NAT_MODE" ] ; then
1022 PREINSTALLED=devel.pkgs
1024 PREINSTALLED=runtime.pkgs
1028 if [ -n "$NAT_MODE" ] ; then
1029 # we can now set GUEST_HOSTNAME safely
1030 [ -z "$GUEST_HOSTNAME" ] && GUEST_HOSTNAME=$(echo $lxc | sed -e 's,\.,-,g')
1032 # as this command can be used in other contexts, not specifying
1033 # a repo is considered a warning
1034 # use -r none to get rid of this warning
1035 if [ "$MYPLC_REPO_URL" == "none" ] ; then
1037 elif [ -z "$MYPLC_REPO_URL" ] ; then
1038 echo "WARNING -- setting up a yum repo is recommended"
1043 fedora_release=$(echo $fcdistro | cut -df -f2)
1045 if [ "$personality" == "linux32" ]; then
1048 elif [ "$personality" == "linux64" ]; then
1052 echo "Unknown personality: $personality"
1055 # compute networking details for the test mode
1056 # (build mode relies entirely on dhcp on the private subnet)
1057 if [ -z "$NAT_MODE" ] ; then
1059 #create_bridge_if_needed $PUBLIC_BRIDGE
1060 lbuild-bridge.sh $PUBLIC_BRIDGE
1062 GUEST_IP=$(gethostbyname $GUEST_HOSTNAME)
1063 # use same NETMASK as bridge interface br0
1064 MASKLEN=$(ip addr show $PUBLIC_BRIDGE | grep -v inet6 | grep inet | awk '{print $2;}' | cut -d/ -f2)
1065 NETMASK=$(masklen_to_netmask $MASKLEN)
1066 GATEWAY=$(ip route show | grep default | awk '{print $3}' | head -1)
1067 VIF_HOST="vif$(echo $GUEST_HOSTNAME | cut -d. -f1)"
1070 setup_lxc $lxc $fcdistro $pldistro $personality
1072 # historically this command is for setting up a build or a test VM
1073 # kind of patchy right now though
1074 devel_or_test_tools $lxc $fcdistro $pldistro $personality
1076 # container gets started here
1077 post_install $lxc $personality