#!/bin/bash
# -*-shell-*-
+# close stdin, as with ubuntu and debian VMs this script tends to hang and wait for input ..
+0<&-
+
#shopt -s huponexit
COMMAND=$(basename $0)
BUILD_DIR=$(pwd)
# pkgs parsing utilities
-PATH=$(dirname $0):$PATH export PATH
+export PATH=$(dirname $0):$PATH
+
+# old guests have e.g. mount in /bin but this is no longer part of
+# the standard PATH in recent hosts after usrmove, so let's keep it simple
+export PATH=$PATH:/bin:/sbin
+
. build.common
DEFAULT_FCDISTRO=f20
DEFAULT_PLDISTRO=lxc
DEFAULT_PERSONALITY=linux64
-COMMAND_LBUILD="lbuild-initvm.sh"
-COMMAND_LTEST="ltest-initvm.sh"
-
##########
-# when creating build boxes we use private NAT'ed addresses for the VMs
-# as per virbr0 that is taken care of by libvirt at startup
-PRIVATE_PREFIX="192.168.122."
-PRIVATE_GATEWAY="192.168.122.1"
-# beware that changing this would break the logic of random_private_byte...
-PRIVATE_MASKLEN=24
-
-# we just try randomly in that range until a free IP address shows up
-PRIVATE_ATTEMPTS=20
-
# constant
-INTERFACE_BRIDGE=br0
+PUBLIC_BRIDGE=br0
# the network interface name as seen from the container
-VIFNAME=eth0
+VIF_GUEST=eth0
##############################
## stolen from tests/system/template-qemu/qemu-bridge-init
# still not found ? that's bad
echo unknown
}
-########## check for a free IP
-function ip_is_busy () {
- target=$1; shift
- ping -c 1 -W 1 $target >& /dev/null
-}
-
-function random_private_byte () {
- for attempt in $(seq $PRIVATE_ATTEMPTS); do
- byte=$(($RANDOM % 256))
- if [ "$byte" == 0 -o "$byte" == 1 ] ; then continue; fi
- ip=${PRIVATE_PREFIX}${byte}
- ip_is_busy $ip || { echo $byte; return; }
- done
- echo "Cannot seem to find a free IP address in range ${PRIVATE_PREFIX}.xx/24 after $PRIVATE_ATTEMPTS attempts - exiting"
- exit 1
-}
########## networking -- ctd
function gethostbyname () {
set -x
# already created ? - we're done
- ip addr show $INTERFACE_BRIDGE >& /dev/null && {
+ ip addr show $PUBLIC_BRIDGE >& /dev/null && {
echo "Bridge already set up - skipping create_bridge_if_needed"
return 0
}
# creating the bridge
- echo "Creating bridge INTERFACE_BRIDGE=$INTERFACE_BRIDGE"
- brctl addbr $INTERFACE_BRIDGE
- brctl addif $INTERFACE_BRIDGE $if_lan
+ echo "Creating bridge PUBLIC_BRIDGE=$PUBLIC_BRIDGE"
+ brctl addbr $PUBLIC_BRIDGE
+ brctl addif $PUBLIC_BRIDGE $if_lan
echo "Activating promiscuous mode if_lan=$if_lan"
ip link set $if_lan up promisc on
sleep 2
# rely on dhcp to re assign IP..
- echo "Starting dhclient on $INTERFACE_BRIDGE"
- dhclient $INTERFACE_BRIDGE
+ echo "Starting dhclient on $PUBLIC_BRIDGE"
+ dhclient $PUBLIC_BRIDGE
sleep 1
#Reconfigure the routing table
echo "Configuring gateway=$gateway"
- ip route add default via $gateway dev $INTERFACE_BRIDGE
+ ip route add default via $gateway dev $PUBLIC_BRIDGE
ip route del default via $gateway dev $if_lan
# at this point we have an extra route like e.g.
## ip route show
#138.96.112.0/21 dev em1 proto kernel scope link src 138.96.112.57
#138.96.112.0/21 dev br0 proto kernel scope link src 138.96.112.57
#192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
- route_dest=$(ip route show | grep -v default | grep "dev $INTERFACE_BRIDGE" | awk '{print $1;}')
+ route_dest=$(ip route show | grep -v default | grep "dev $PUBLIC_BRIDGE" | awk '{print $1;}')
ip route del $route_dest dev $if_lan
echo "========== $COMMAND: exiting create_bridge - beg"
}
+##############################
+# return yum or debootstrap
+function package_method () {
+ fcdistro=$1; shift
+ case $fcdistro in
+ f[0-9]*|centos[0-9]*|sl[0-9]*) echo yum ;;
+ squeeze|wheezy|oneiric|precise|quantal|raring|saucy) echo debootstrap ;;
+ *) echo Unknown distro $fcdistro ;;
+ esac
+}
+
+# return arch from debian distro and personality
+function canonical_arch () {
+ personality=$1; shift
+ fcdistro=$1; shift
+ case $(package_method $fcdistro) in
+ yum)
+ case $personality in *32) echo i386 ;; *64) echo x86_64 ;; *) echo Unknown-arch-1 ;; esac ;;
+ debootstrap)
+ case $personality in *32) echo i386 ;; *64) echo amd64 ;; *) echo Unknown-arch-2 ;; esac ;;
+ *)
+ echo Unknown-arch-3 ;;
+ esac
+}
+
+# the new test framework creates /timestamp in /vservers/<name> *before* populating it
+function almost_empty () {
+ dir="$1"; shift ;
+ # non existing is fine
+ [ ! -d $dir ] && return 0;
+ # need to have at most one file
+ count=$(cd $dir; ls | wc -l); [ $count -le 1 ];
+}
##############################
function check_yum_installed () {
}
##############################
+function fedora_install() {
+ set -x
+ set -e
-function configure_fedora() {
-
- # disable selinux in fedora
- mkdir -p $rootfs_path/selinux
- echo 0 > $rootfs_path/selinux/enforce
-
- # configure the network
-
- cat <<EOF > ${rootfs_path}/etc/sysconfig/network-scripts/ifcfg-$VIFNAME
-DEVICE=$VIFNAME
-BOOTPROTO=static
-ONBOOT=yes
-HOSTNAME=$HOSTNAME
-IPADDR=$IP
-NETMASK=$NETMASK
-GATEWAY=$GATEWAY
-NM_CONTROLLED=no
-TYPE=Ethernet
-MTU=1500
-EOF
-
- # set the hostname
- case "$fcdistro" in
- f18|f2?)
- cat <<EOF > ${rootfs_path}/etc/hostname
-$HOSTNAME
-EOF
- echo ;;
- *)
- cat <<EOF > ${rootfs_path}/etc/sysconfig/network
-NETWORKING=yes
-HOSTNAME=$HOSTNAME
-EOF
- # set minimal hosts
- cat <<EOF > $rootfs_path/etc/hosts
-127.0.0.1 localhost $HOSTNAME
-EOF
- echo ;;
- esac
-
- dev_path="${rootfs_path}/dev"
- rm -rf $dev_path
- mkdir -p $dev_path
- mknod -m 666 ${dev_path}/null c 1 3
- mknod -m 666 ${dev_path}/zero c 1 5
- mknod -m 666 ${dev_path}/random c 1 8
- mknod -m 666 ${dev_path}/urandom c 1 9
- mkdir -m 755 ${dev_path}/pts
- mkdir -m 1777 ${dev_path}/shm
- mknod -m 666 ${dev_path}/tty c 5 0
- mknod -m 666 ${dev_path}/tty0 c 4 0
- mknod -m 666 ${dev_path}/tty1 c 4 1
- mknod -m 666 ${dev_path}/tty2 c 4 2
- mknod -m 666 ${dev_path}/tty3 c 4 3
- mknod -m 666 ${dev_path}/tty4 c 4 4
- mknod -m 600 ${dev_path}/console c 5 1
- mknod -m 666 ${dev_path}/full c 1 7
- mknod -m 600 ${dev_path}/initctl p
- mknod -m 666 ${dev_path}/ptmx c 5 2
-
- #echo "setting root passwd to $root_password"
- #echo "root:$root_password" | chroot $rootfs_path chpasswd
+ cache=/var/cache/lxc/fedora/$arch/$release
+
+ mkdir -p /var/lock/subsys/
+ (
+ flock -n -x 200 || { echo "Cache repository is busy." ; return 1 ; }
- return 0
-}
+ if [ ! -e "$cache/rootfs" ]; then
+ echo "Getting cache download in $cache/rootfs ... "
+ fedora_download || { echo "Failed to download 'fedora base'"; return 1; }
+ else
+ echo "Updating cache $cache/rootfs ..."
+ if ! yum --installroot $cache/rootfs -y --nogpgcheck update ; then
+ echo "Failed to update 'fedora base', continuing with last known good cache"
+ else
+ echo "Update finished"
+ fi
+ fi
-function configure_fedora_init() {
+ echo "Copy $cache/rootfs to $lxc_root ... "
+ rsync -a $cache/rootfs/ $lxc_root/
+
+ return 0
- sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.sysinit
- sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.d/rc.sysinit
- # don't mount devpts, for pete's sake
- sed -i 's/^.*dev.pts.*$/#\0/' ${rootfs_path}/etc/rc.sysinit
- sed -i 's/^.*dev.pts.*$/#\0/' ${rootfs_path}/etc/rc.d/rc.sysinit
- chroot ${rootfs_path} /sbin/chkconfig udev-post off
- chroot ${rootfs_path} /sbin/chkconfig network on
-}
+ ) 200>/var/lock/subsys/lxc
-# this code of course is for guests that do run on systemd
-function configure_fedora_systemd() {
- # so ignore if we can't find /etc/systemd at all
- [ -d ${rootfs_path}/etc/systemd ] || return 0
- # otherwise let's proceed
- ln -sf /lib/systemd/system/multi-user.target ${rootfs_path}/etc/systemd/system/default.target
- touch ${rootfs_path}/etc/fstab
- ln -sf /dev/null ${rootfs_path}/etc/systemd/system/udev.service
-# Thierry - Feb 2013
-# this was intended for f16 initially, in order to enable getty that otherwise would not start
-# having a getty running is helpful only if ssh won't start though, and we see a correlation between
-# VM's that refuse to lxc-stop and VM's that run crazy getty's
-# so, turning getty off for now instead
-# #dependency on a device unit fails it specially that we disabled udev
-# sed -i 's/After=dev-%i.device/After=/' ${rootfs_path}/lib/systemd/system/getty\@.service
- ln -sf /dev/null ${rootfs_path}/etc/systemd/system/"getty@.service"
- rm -f ${rootfs_path}/etc/systemd/system/getty.target.wants/*service || :
-# can't seem to handle this one with systemctl
- chroot ${rootfs_path} /sbin/chkconfig network on
+ return $?
}
-function download_fedora() {
-set -x
+function fedora_download() {
+ set -x
# check the mini fedora was not already downloaded
INSTALL_ROOT=$cache/partial
echo $INSTALL_ROOT
# download a mini fedora into a cache
echo "Downloading fedora minimal ..."
- mkdir -p $INSTALL_ROOT
- if [ $? -ne 0 ]; then
- echo "Failed to create '$INSTALL_ROOT' directory"
- return 1
- fi
+ mkdir -p $INSTALL_ROOT || { echo "Failed to create '$INSTALL_ROOT' directory" ; return 1; }
mkdir -p $INSTALL_ROOT/etc/yum.repos.d
mkdir -p $INSTALL_ROOT/dev
cp /etc/yum.repos.d/fedora* $INSTALL_ROOT/etc/yum.repos.d/
# append fedora repo files with desired $release and $basearch
- for f in $INSTALL_ROOT/etc/yum.repos.d/*
- do
+ for f in $INSTALL_ROOT/etc/yum.repos.d/* ; do
sed -i "s/\$basearch/$arch/g; s/\$releasever/$release/g;" $f
done
YUM="yum --installroot=$INSTALL_ROOT --nogpgcheck -y"
PKG_LIST="yum initscripts passwd rsyslog vim-minimal dhclient chkconfig rootfiles policycoreutils openssh-server openssh-clients"
echo "$YUM install $PKG_LIST"
- $YUM install $PKG_LIST
-
- if [ $? -ne 0 ]; then
- echo "Failed to download the rootfs, aborting."
- return 1
- fi
+ $YUM install $PKG_LIST || { echo "Failed to download rootfs, aborting." ; return 1; }
mv "$INSTALL_ROOT" "$cache/rootfs"
echo "Download complete."
return 0
}
+##############################
+function fedora_configure() {
-function copy_fedora() {
-set -x
- # make a local copy of the minifedora
- echo -n "Copying rootfs to $rootfs_path ..."
- mkdir -p $rootfs_path
- rsync -a $cache/rootfs/ $rootfs_path/
- return 0
-}
-
-
-function update_fedora() {
-set -x
- YUM="yum --installroot $cache/rootfs -y --nogpgcheck"
- $YUM update
-}
+ set -x
+ set -e
+ # disable selinux in fedora
+ mkdir -p $lxc_root/selinux
+ echo 0 > $lxc_root/selinux/enforce
-function install_fedora() {
- set -x
+ # set the hostname
+ case "$fcdistro" in
+ f18|f2?)
+ cat <<EOF > ${lxc_root}/etc/hostname
+$GUEST_HOSTNAME
+EOF
+ echo ;;
+ *)
+ cat <<EOF > ${lxc_root}/etc/sysconfig/network
+NETWORKING=yes
+HOSTNAME=$GUEST_HOSTNAME
+EOF
+ # set minimal hosts
+ cat <<EOF > $lxc_root/etc/hosts
+127.0.0.1 localhost $GUEST_HOSTNAME
+EOF
+ echo ;;
+ esac
- mkdir -p /var/lock/subsys/
- (
- flock -n -x 200
- if [ $? -ne 0 ]; then
- echo "Cache repository is busy."
- return 1
- fi
+ dev_path="${lxc_root}/dev"
+ rm -rf $dev_path
+ mkdir -p $dev_path
+ mknod -m 666 ${dev_path}/null c 1 3
+ mknod -m 666 ${dev_path}/zero c 1 5
+ mknod -m 666 ${dev_path}/random c 1 8
+ mknod -m 666 ${dev_path}/urandom c 1 9
+ mkdir -m 755 ${dev_path}/pts
+ mkdir -m 1777 ${dev_path}/shm
+ mknod -m 666 ${dev_path}/tty c 5 0
+ mknod -m 666 ${dev_path}/tty0 c 4 0
+ mknod -m 666 ${dev_path}/tty1 c 4 1
+ mknod -m 666 ${dev_path}/tty2 c 4 2
+ mknod -m 666 ${dev_path}/tty3 c 4 3
+ mknod -m 666 ${dev_path}/tty4 c 4 4
+ mknod -m 600 ${dev_path}/console c 5 1
+ mknod -m 666 ${dev_path}/full c 1 7
+ mknod -m 600 ${dev_path}/initctl p
+ mknod -m 666 ${dev_path}/ptmx c 5 2
- echo "Checking cache download in $cache/rootfs ... "
- if [ ! -e "$cache/rootfs" ]; then
- download_fedora
- if [ $? -ne 0 ]; then
- echo "Failed to download 'fedora base'"
- return 1
- fi
- else
- echo "Cache found. Updating..."
- update_fedora
- if [ $? -ne 0 ]; then
- echo "Failed to update 'fedora base', continuing with last known good cache"
- else
- echo "Update finished"
- fi
- fi
+ if [ "$(echo $fcdistro | cut -d"f" -f2)" -le "14" ]; then
+ fedora_configure_init
+ else
+ fedora_configure_systemd
+ fi
- echo "Copy $cache/rootfs to $rootfs_path ... "
- copy_fedora
- if [ $? -ne 0 ]; then
- echo "Failed to copy rootfs"
- return 1
- fi
+ guest_ifcfg=${lxc_root}/etc/sysconfig/network-scripts/ifcfg-$VIF_GUEST
+ ( [ -n "$BUILD_MODE" ] && write_guest_ifcfg_build || write_guest_ifcfg_test ) > $guest_ifcfg
- return 0
+ fedora_configure_yum $lxc $fcdistro $pldistro
- ) 200>/var/lock/subsys/lxc
+ return 0
+}
- return $?
+function fedora_configure_init() {
+ set -e
+ set -x
+ sed -i 's|.sbin.start_udev||' ${lxc_root}/etc/rc.sysinit
+ sed -i 's|.sbin.start_udev||' ${lxc_root}/etc/rc.d/rc.sysinit
+ # don't mount devpts, for pete's sake
+ sed -i 's/^.*dev.pts.*$/#\0/' ${lxc_root}/etc/rc.sysinit
+ sed -i 's/^.*dev.pts.*$/#\0/' ${lxc_root}/etc/rc.d/rc.sysinit
+ chroot ${lxc_root} chkconfig udev-post off
+ chroot ${lxc_root} chkconfig network on
}
+# this code of course is for guests that do run on systemd
+function fedora_configure_systemd() {
+ set -e
+ set -x
+ # so ignore if we can't find /etc/systemd at all
+ [ -d ${lxc_root}/etc/systemd ] || return 0
+ # otherwise let's proceed
+ ln -sf /lib/systemd/system/multi-user.target ${lxc_root}/etc/systemd/system/default.target
+ touch ${lxc_root}/etc/fstab
+ ln -sf /dev/null ${lxc_root}/etc/systemd/system/udev.service
+# Thierry - Feb 2013
+# this was intended for f16 initially, in order to enable getty that otherwise would not start
+# having a getty running is helpful only if ssh won't start though, and we see a correlation between
+# VM's that refuse to lxc-stop and VM's that run crazy getty's
+# so, turning getty off for now instead
+# #dependency on a device unit fails it specially that we disabled udev
+# sed -i 's/After=dev-%i.device/After=/' ${lxc_root}/lib/systemd/system/getty\@.service
+ ln -sf /dev/null ${lxc_root}/etc/systemd/system/"getty@.service"
+ rm -f ${lxc_root}/etc/systemd/system/getty.target.wants/*service || :
+# can't seem to handle this one with systemctl
+ chroot ${lxc_root} chkconfig network on
+}
-# overwrite lxc's internal yum config
-function configure_yum_in_lxc () {
+# overwrite container yum config
+function fedora_configure_yum () {
set -x
set -e
trap failure ERR INT
fcdistro=$1; shift
pldistro=$1; shift
+ # rpm --rebuilddb
+ chroot $lxc_root rpm --rebuilddb
+
echo "Initializing yum.repos.d in $lxc"
- rm -f $rootfs_path/etc/yum.repos.d/*
+ rm -f $lxc_root/etc/yum.repos.d/*
- cat > $rootfs_path/etc/yum.repos.d/building.repo <<EOF
+ cat > $lxc_root/etc/yum.repos.d/building.repo <<EOF
[fedora]
name=Fedora $release - $arch
baseurl=http://mirror.onelab.eu/fedora/releases/$release/Everything/$arch/os/
# for using vtest-init-lxc.sh as a general-purpose lxc creation wrapper
# just mention 'none' as the repo url
if [ -n "$REPO_URL" ] ; then
- if [ ! -d $rootfs_path/etc/yum.repos.d ] ; then
+ if [ ! -d $lxc_root/etc/yum.repos.d ] ; then
echo "WARNING : cannot create myplc repo"
else
# exclude kernel from fedora repos
yumexclude=$(pl_plcyumexclude $fcdistro $pldistro $DIRNAME)
- for repo in $rootfs_path/etc/yum.repos.d/* ; do
+ for repo in $lxc_root/etc/yum.repos.d/* ; do
[ -f $repo ] && yumconf_exclude $repo "exclude=$yumexclude"
done
# the build repo is not signed at this stage
- cat > $rootfs_path/etc/yum.repos.d/myplc.repo <<EOF
+ cat > $lxc_root/etc/yum.repos.d/myplc.repo <<EOF
[myplc]
name= MyPLC
baseurl=$REPO_URL
fi
}
-# return yum or debootstrap
-function package_method () {
+##############################
+# need to specify the right mirror for debian variants like ubuntu and the like
+function debian_mirror () {
fcdistro=$1; shift
case $fcdistro in
- f[0-9]*|centos[0-9]*|sl[0-9]*) echo yum ;;
- squeeze|wheezy|oneiric|precise|quantal|raring|saucy) echo debootstrap ;;
- *) echo Unknown distro $fcdistro ;;
- esac
+ squeeze|wheezy)
+ echo http://ftp2.fr.debian.org/debian/ ;;
+ oneiric|precise|quantal|raring|saucy)
+ echo http://mir1.ovh.net/ubuntu/ubuntu/ ;;
+ *) echo unknown distro $fcdistro; exit 1;;
+ esac
}
-# return arch from debian distro and personality
-function canonical_arch () {
- personality=$1; shift
- fcdistro=$1; shift
- case $(package_method $fcdistro) in
- yum)
- case $personality in *32) echo i386 ;; *64) echo x86_64 ;; *) echo Unknown-arch-1 ;; esac ;;
- debootstrap)
- case $personality in *32) echo i386 ;; *64) echo amd64 ;; *) echo Unknown-arch-2 ;; esac ;;
- *)
- echo Unknown-arch-3 ;;
- esac
+function debian_install () {
+ set -e
+ set -x
+ mkdir -p $lxc_root
+ arch=$(canonical_arch $personality $fcdistro)
+ mirror=$(debian_mirror $fcdistro)
+ debootstrap --arch $arch $fcdistro $lxc_root $mirror
}
-# the new test framework creates /timestamp in /vservers/<name> *before* populating it
-function almost_empty () {
- dir="$1"; shift ;
- # non existing is fine
- [ ! -d $dir ] && return 0;
- # need to have at most one file
- count=$(cd $dir; ls | wc -l); [ $count -le 1 ];
+function debian_configure () {
+ guest_interfaces=${lxc_root}/etc/network/interfaces
+ ( [ -n "$BUILD_MODE" ] && write_guest_interfaces_build || write_guest_interfaces_test ) > $guest_interfaces
}
+function write_guest_interfaces_build () {
+ cat <<EOF
+auto $VIF_GUEST
+iface $VIF_GUEST inet dhcp
+EOF
+}
+
+function write_guest_interfaces_test () {
+ cat <<EOF
+auto $VIF_GUEST
+iface $VIF_GUEST
+ address $GUEST_IP
+ netmask $NETMASK
+ gateway $GATEWAY
+EOF
+}
+##############################
function setup_lxc() {
set -x
pkg_method=$(package_method $fcdistro)
case $pkg_method in
yum)
- install_fedora || { echo "failed to install fedora"; exit 1 ; }
- configure_fedora || { echo "failed to configure fedora for a container"; exit 1 ; }
- if [ "$(echo $fcdistro | cut -d"f" -f2)" -le "14" ]; then
- configure_fedora_init
- else
- configure_fedora_systemd
- fi
+ fedora_install || { echo "failed to install fedora root image"; exit 1 ; }
+ fedora_configure || { echo "failed to configure fedora for a container"; exit 1 ; }
;;
debootstrap)
- echo "$COMMAND: no support for debootstrap-based systems - yet"
- exit 1
+ debian_install || { echo "failed to install debian/ubuntu root image"; exit 1 ; }
+ debian_configure || { echo "failed to configure debian/ubuntu for a container"; exit 1 ; }
;;
*)
echo "$COMMAND:: unknown package_method - exiting"
;;
esac
- # Enable cgroup
- mkdir $rootfs_path/cgroup
+ # Enable cgroup -- xxx -- is this really useful ?
+ mkdir $lxc_root/cgroup
# set up resolv.conf
- cp /etc/resolv.conf $rootfs_path/etc/resolv.conf
+ cp /etc/resolv.conf $lxc_root/etc/resolv.conf
# and /etc/hosts for at least localhost
- [ -f $rootfs_path/etc/hosts ] || echo "127.0.0.1 localhost localhost.localdomain" > $rootfs_path/etc/hosts
+ [ -f $lxc_root/etc/hosts ] || echo "127.0.0.1 localhost localhost.localdomain" > $lxc_root/etc/hosts
# grant ssh access from host to guest
- mkdir $rootfs_path/root/.ssh
- cat /root/.ssh/id_rsa.pub >> $rootfs_path/root/.ssh/authorized_keys
+ mkdir $lxc_root/root/.ssh
+ cat /root/.ssh/id_rsa.pub >> $lxc_root/root/.ssh/authorized_keys
- # copy libvirt xml template
- veth_pair="i$(echo $HOSTNAME | cut -d. -f1)"
- tmpl_name="$lxc.xml"
- cat > $config_path/$tmpl_name<<EOF
+ # don't keep the input xml, this can be retrieved at all times with virsh dumpxml
+ config_xml=$tmp/$lxc.xml
+ ( [ -n "$BUILD_MODE" ] && write_lxc_xml_build $lxc || write_lxc_xml_test $lxc ) > $config_xml
+
+ # define lxc container for libvirt
+ virsh -c lxc:/// define $config_xml
+
+ return 0
+}
+
+function write_lxc_xml_test () {
+ lxc=$1; shift
+ cat <<EOF
<domain type='lxc'>
<name>$lxc</name>
<memory>524288</memory>
<devices>
<emulator>/usr/libexec/libvirt_lxc</emulator>
<filesystem type='mount'>
- <source dir='$rootfs_path'/>
+ <source dir='$lxc_root'/>
<target dir='/'/>
</filesystem>
<interface type="bridge">
- <source bridge="$INTERFACE_BRIDGE"/>
- <target dev='$veth_pair'/>
+ <source bridge="$PUBLIC_BRIDGE"/>
+ <target dev='$VIF_HOST'/>
</interface>
<console type='pty' />
</devices>
<network>
<name>host-bridge</name>
<forward mode="bridge"/>
- <bridge name="$INTERFACE_BRIDGE"/>
+ <bridge name="$PUBLIC_BRIDGE"/>
</network>
</domain>
EOF
+}
- # define lxc container for libvirt
- virsh -c lxc:// define $config_path/$tmpl_name
-
- # rpm --rebuilddb
- chroot $rootfs_path /bin/rpm --rebuilddb
+function write_lxc_xml_build () {
+ lxc=$1; shift
+ cat <<EOF
+<domain type='lxc'>
+ <name>$lxc</name>
+ <memory>524288</memory>
+ <os>
+ <type arch='$arch2'>exe</type>
+ <init>/sbin/init</init>
+ </os>
+ <features>
+ <acpi/>
+ </features>
+ <vcpu>1</vcpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/libexec/libvirt_lxc</emulator>
+ <filesystem type='mount'>
+ <source dir='$lxc_root'/>
+ <target dir='/'/>
+ </filesystem>
+ <interface type="network">
+ <source network="default"/>
+ </interface>
+ <console type='pty' />
+ </devices>
+</domain>
+EOF
+}
- configure_yum_in_lxc $lxc $fcdistro $pldistro
+# this one is dhcp-based
+function write_guest_ifcfg_build () {
+ cat <<EOF
+DEVICE=$VIF_GUEST
+BOOTPROTO=dhcp
+ONBOOT=yes
+NM_CONTROLLED=no
+TYPE=Ethernet
+MTU=1500
+EOF
+}
- return 0
+# use fixed GUEST_IP as specified by GUEST_HOSTNAME
+function write_guest_ifcfg_test () {
+ cat <<EOF
+DEVICE=$VIF_GUEST
+BOOTPROTO=static
+ONBOOT=yes
+HOSTNAME=$GUEST_HOSTNAME
+IPADDR=$GUEST_IP
+NETMASK=$NETMASK
+GATEWAY=$GATEWAY
+NM_CONTROLLED=no
+TYPE=Ethernet
+MTU=1500
+EOF
}
function devel_or_vtest_tools () {
### install individual packages, then groups
# get target arch - use uname -i here (we want either x86_64 or i386)
- lxc_arch=$(chroot $rootfs_path /bin/uname -i)
+ lxc_arch=$(chroot $lxc_root uname -i)
# on debian systems we get arch through the 'arch' command
- [ "$lxc_arch" = "unknown" ] && lxc_arch=$(chroot $rootfs_path /bin/arch)
+ [ "$lxc_arch" = "unknown" ] && lxc_arch=$(chroot $lxc_root arch)
packages=$(pl_getPackages -a $lxc_arch $fcdistro $pldistro $pkgsfile)
groups=$(pl_getGroups -a $lxc_arch $fcdistro $pldistro $pkgsfile)
case "$pkg_method" in
yum)
- [ -n "$packages" ] && chroot $rootfs_path /usr/bin/yum -y install $packages
+ [ -n "$packages" ] && chroot $lxc_root yum -y install $packages
for group_plus in $groups; do
group=$(echo $group_plus | sed -e "s,+++, ,g")
- chroot $rootfs_path /usr/bin/yum -y groupinstall "$group"
+ chroot $lxc_root yum -y groupinstall "$group"
done
# store current rpm list in /init-lxc.rpms in case we need to check the contents
- chroot $rootfs_path /bin/rpm -aq > $rootfs_path/init-lxc.rpms
+ chroot $lxc_root rpm -aq > $lxc_root/init-lxc.rpms
;;
debootstrap)
- chroot $rootfs_path /usr/bin/apt-get update
- for package in $packages ; do
- chroot $rootfs_path /usr/bin/apt-get install -y $package
+ # for ubuntu
+ if grep -iq ubuntu /vservers/$lxc/etc/lsb-release 2> /dev/null; then
+ # on ubuntu, at this point we end up with a single feed in /etc/apt/sources.list
+ # we need at least to add the 'universe' feed for python-rpm
+ ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e s,main,universe, > sources.list.d/universe.list )
+ # also adding a link to updates sounds about right
+ ( cd /vservers/$lxc/etc/apt ; head -1 sources.list | sed -e 's, main,-updates main,' > sources.list.d/updates.list )
+ fi
+ chroot $lxc_root apt-get update
+ for package in $packages ; do
+ # close stdin in an attempt to avoid this hanging
+ # xxx also we ignore result for now, not sure if the kind of errors like below
+ # truly is serious or not
+#Setting up at (3.1.13-2ubuntu2) ...
+#initctl: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
+#initctl: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
+#start: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
+
+ chroot $lxc_root apt-get install -y $package < /dev/null || :
done
### xxx todo install groups with apt..
;;
personality=$1; shift
if [ -n "$BUILD_MODE" ] ; then
post_install_build $lxc $personality
- start_lxc $lxc
+ lxc_start $lxc
+ # manually run dhclient in guest - somehow this network won't start on its own
+ virsh -c lxc:/// lxc-enter-namespace $lxc /bin/bash -c "dhclient $VIF_GUEST"
else
post_install_myplc $lxc $personality
- start_lxc $lxc
+ lxc_start $lxc
wait_for_ssh $lxc
fi
# setup localtime from the host
- cp /etc/localtime $rootfs_path/etc/localtime
+ cp /etc/localtime $lxc_root/etc/localtime
}
function post_install_build () {
### From myplc-devel-native.spec
# be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
- cat << EOF | chroot $rootfs_path /bin/bash -x
+ cat << EOF | chroot $lxc_root bash -x
# set up /dev/loop* in lxc
for i in \$(seq 0 255) ; do
/bin/mknod -m 640 /dev/loop\$i b 7 \$i
personality=$1; shift
# be careful to backslash $ in this, otherwise it's the root context that's going to do the evaluation
- cat << EOF | chroot $rootfs_path /bin/bash -x
+ cat << EOF | chroot $lxc_root bash -x
# create /etc/sysconfig/network if missing
[ -f /etc/sysconfig/network ] || /bin/echo NETWORKING=yes > /etc/sysconfig/network
EOF
}
-function start_lxc() {
+function lxc_start() {
set -x
set -e
lxc=$1; shift
- virsh -c lxc:// start $lxc
+ virsh -c lxc:/// start $lxc
return 0
}
lxc=$1; shift
- echo $IP is up, waiting for ssh...
+ echo network in guest is up, waiting for ssh...
#wait max 5 min for sshd to start
ssh_up=""
counter=1
while [ "$current_time" -lt "$stop_time" ] ; do
echo "$counter-th attempt to reach sshd in container $lxc ..."
- ssh -o "StrictHostKeyChecking no" $IP 'uname -i' && { ssh_up=true; echo "SSHD in container $lxc is UP"; break ; } || :
+ ssh -o "StrictHostKeyChecking no" $GUEST_IP 'uname -i' && { ssh_up=true; echo "SSHD in container $lxc is UP"; break ; } || :
sleep 10
current_time=$(($current_time + 10))
counter=$(($counter+1))
function usage () {
set +x
- echo "Usage: $COMMAND_LBUILD [options] lxc-name"
- echo "Usage: $COMMAND_LTEST [options] lxc-name"
+ echo "Usage: $COMMAND [options] lxc-name (aka build mode)"
+ echo "Usage: $COMMAND -n hostname [options] lxc-name (aka test mode)"
echo "Description:"
- echo " This command creates a fresh lxc instance, for building, or running a test myplc"
+ echo " This command creates a fresh lxc instance, for building, or running a test myplc"
+ echo "In its first form, spawned VM gets a private IP bridged with virbr0 over dhcp/nat"
+ echo "With the second form, spawned VM gets a public IP bridged on public bridge br0"
+ echo ""
echo "Supported options"
+ echo " -n hostname - the hostname to use in container"
echo " -f fcdistro - for creating the root filesystem - defaults to $DEFAULT_FCDISTRO"
- echo " -d pldistro - defaults to $DEFAULT_PLDISTRO"
+ echo " -d pldistro - defaults to $DEFAULT_PLDISTRO - current support for fedoras debians ubuntus"
echo " -p personality - defaults to $DEFAULT_PERSONALITY"
- echo " -n hostname - the hostname to use in container - required with $COMMAND_LTEST"
- echo " -r repo-url - used to populate yum.repos.d - required with $COMMAND_LTEST"
- echo " -P pkgs_file - defines the set of extra pacakges"
- echo " by default we use vtest.pkgs or devel.pkgs according to $COMMAND"
+ echo " -r repo-url - used to populate yum.repos.d - required in test mode"
+ echo " -P pkgs_file - defines a set of extra packages to install in guest"
+ echo " by default we use devel.pkgs (build mode) or runtime.pkgs (test mode)"
echo " -v be verbose"
exit 1
}
exit 1
fi
- case "$COMMAND" in
- $COMMAND_LBUILD)
- BUILD_MODE=true ;;
- $COMMAND_LTEST)
- TEST_MODE=true;;
- *)
- usage ;;
- esac
-
- echo 'build mode=' $BUILD_MODE 'test mode=' $TEST_MODE
-
- # the set of preinstalled packages - depends on vbuild or vtest
- if [ -n "$VBUILD_MODE" ] ; then
- PREINSTALLED=devel.pkgs
- else
- PREINSTALLED=vtest.pkgs
- fi
- while getopts "f:d:p:n:r:P:v" opt ; do
+ while getopts "n:f:d:p:r:P:v" opt ; do
case $opt in
+ n) GUEST_HOSTNAME=$OPTARG;;
f) fcdistro=$OPTARG;;
d) pldistro=$OPTARG;;
p) personality=$OPTARG;;
- n) HOSTNAME=$OPTARG;;
r) REPO_URL=$OPTARG;;
P) PREINSTALLED=$OPTARG;;
v) VERBOSE=true; set -x;;
# parse fixed arguments
[[ -z "$@" ]] && usage
lxc=$1 ; shift
+ lxc_root=/vservers/$lxc
+ # rainchecks
+ almost_empty $lxc_root || \
+ { echo "container $lxc already exists in $lxc_root - exiting" ; exit 1 ; }
+ virsh -c lxc:/// domuuid $lxc >& /dev/null && \
+ { echo "container $lxc already exists in libvirt - exiting" ; exit 1 ; }
+ mkdir -p $lxc_root
# check we've exhausted the arguments
[[ -n "$@" ]] && usage
+ # BUILD_MODE is true unless we specified a hostname
+ [ -n "$GUEST_HOSTNAME" ] || BUILD_MODE=true
+
+ # set default values
[ -z "$fcdistro" ] && fcdistro=$DEFAULT_FCDISTRO
[ -z "$pldistro" ] && pldistro=$DEFAULT_PLDISTRO
[ -z "$personality" ] && personality=$DEFAULT_PERSONALITY
+ # the set of preinstalled packages - depends on mode
+ if [ -z "$PREINSTALLED"] ; then
+ if [ -n "$BUILD_MODE" ] ; then
+ PREINSTALLED=devel.pkgs
+ else
+ PREINSTALLED=runtime.pkgs
+ fi
+ fi
+
if [ -n "$BUILD_MODE" ] ; then
- [ -z "$HOSTNAME" ] && HOSTNAME=$lxc
+ # we can now set GUEST_HOSTNAME safely
+ [ -z "$GUEST_HOSTNAME" ] && GUEST_HOSTNAME=$lxc
else
- [[ -z "$HOSTNAME" ]] && usage
- [[ -z "$REPO_URL" ]] && echo "WARNING -- setting up a yum repo is recommended"
+ # as this command can be used in other contexts, not specifying
+ # a repo is considered a warning
+ # use -r none to get rid of this warning
+ if [ "$REPO_URL" == "none" ] ; then
+ REPO_URL=""
+ elif [ -z "$REPO_URL" ] ; then
+ echo "WARNING -- setting up a yum repo is recommended"
+ fi
fi
##########
echo "Unknown personality: $personality"
fi
- # need lxc installed before we can run lxc-ls
- # need bridge installed
- create_bridge_if_needed
+ # compute networking details for the test mode
+ # (build mode relies entirely on dhcp on the private subnet)
+ if [ -z "$BUILD_MODE" ] ; then
- if [ -n "$BUILD_MODE" ] ; then
+ create_bridge_if_needed
- # Bridge IP affectation
- byte=$(random_private_byte)
- IP=${PRIVATE_PREFIX}$byte
- NETMASK=$(masklen_to_netmask $PRIVATE_MASKLEN)
- GATEWAY=$PRIVATE_GATEWAY
-
- lxc_network_type=veth
- lxc_network_link=virbr0
- veth_pair="veth$byte"
- echo "the IP address of container $lxc is $IP "
- else
- [[ -z "HOSTNAME" ]] && usage
-
- IP=$(gethostbyname $HOSTNAME)
+ GUEST_IP=$(gethostbyname $GUEST_HOSTNAME)
# use same NETMASK as bridge interface br0
- MASKLEN=$(ip addr show $INTERFACE_BRIDGE | grep -v inet6 | grep inet | awk '{print $2;}' | cut -d/ -f2)
-
+ MASKLEN=$(ip addr show $PUBLIC_BRIDGE | grep -v inet6 | grep inet | awk '{print $2;}' | cut -d/ -f2)
NETMASK=$(masklen_to_netmask $MASKLEN)
GATEWAY=$(ip route show | grep default | awk '{print $3}')
- lxc_network_type=veth
- lxc_network_link=$INTERFACE_BRIDGE
- veth_pair="i$(echo $HOSTNAME | cut -d. -f1)"
-
+ VIF_HOST="i$(echo $GUEST_HOSTNAME | cut -d. -f1)"
fi
- path=/vservers
- [ ! -d $path ] && mkdir $path
- rootfs_path=$path/$lxc/rootfs
- config_path=$path/$lxc
- cache_base=/var/cache/lxc/fedora/$arch
- cache=$cache_base/$release
- root_password=root
-
- # check whether the rootfs directory is created to know if the container exists
- # bacause /var/lib/lxc/$lxc is already created while putting $lxc.timestamp
- [ -d $rootfs_path ] && \
- { echo "container $lxc already exists in filesystem - exiting" ; exit 1 ; }
- virsh --connect lxc:// domuuid $lxc >& /dev/null && \
- { echo "container $lxc already exists in libvirt - exiting" ; exit 1 ; }
-
setup_lxc $lxc $fcdistro $pldistro $personality
devel_or_vtest_tools $lxc $fcdistro $pldistro $personality