##########
# 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_BRIDGE="virbr0"
PRIVATE_PREFIX="192.168.122."
PRIVATE_GATEWAY="192.168.122.1"
# beware that changing this would break the logic of random_private_byte...
PRIVATE_ATTEMPTS=20
# constant
-INTERFACE_BRIDGE=br0
+PUBLIC_BRIDGE=br0
# the network interface name as seen from the container
VIF_GUEST=eth0
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"
mkdir -p $rootfs_path/selinux
echo 0 > $rootfs_path/selinux/enforce
- # configure the network
-
- cat <<EOF > ${rootfs_path}/etc/sysconfig/network-scripts/ifcfg-$VIF_GUEST
-DEVICE=$VIF_GUEST
-BOOTPROTO=static
-ONBOOT=yes
-HOSTNAME=$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
+$GUEST_HOSTNAME
EOF
echo ;;
*)
cat <<EOF > ${rootfs_path}/etc/sysconfig/network
NETWORKING=yes
-HOSTNAME=$HOSTNAME
+HOSTNAME=$GUEST_HOSTNAME
EOF
# set minimal hosts
cat <<EOF > $rootfs_path/etc/hosts
-127.0.0.1 localhost $HOSTNAME
+127.0.0.1 localhost $GUEST_HOSTNAME
EOF
echo ;;
esac
;;
esac
+ # rpm --rebuilddb
+ chroot $rootfs_path /bin/rpm --rebuilddb
+
+ configure_yum_in_lxc $lxc $fcdistro $pldistro
+
# Enable cgroup -- xxx -- is this really useful ?
mkdir $rootfs_path/cgroup
mkdir $rootfs_path/root/.ssh
cat /root/.ssh/id_rsa.pub >> $rootfs_path/root/.ssh/authorized_keys
- # copy libvirt xml template
- tmpl_name="$lxc.xml"
- cat > $config_path/$tmpl_name<<EOF
+ config_xml=$config_path/"lxc.xml"
+ guest_ifcfg=${rootfs_path}/etc/sysconfig/network-scripts/ifcfg-$VIF_GUEST
+ if [ -n "$BUILD_MODE" ] ; then
+ write_lxc_xml_build $lxc > $config_xml
+ write_guest_ifcfg_build > $guest_ifcfg
+ else
+ write_lxc_xml_test $lxc > $config_xml
+ write_guest_ifcfg_test > $guest_ifcfg
+ fi
+
+ # 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>
<target dir='/'/>
</filesystem>
<interface type="bridge">
- <source bridge="$INTERFACE_BRIDGE"/>
+ <source bridge="$BRIDGE_IF"/>
<target dev='$VIF_HOST'/>
</interface>
<console type='pty' />
<network>
<name>host-bridge</name>
<forward mode="bridge"/>
- <bridge name="$INTERFACE_BRIDGE"/>
+ <bridge name="$BRIDGE_IF"/>
</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='$arch2'>exe</type>
+ <init>/sbin/init</init>
+ </os>
+ <features>
+ <acpi/>
+ </features>
+ <vcpu>1</vcpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/libexec/libvirt_lxc</emulator>
+ <filesystem type='mount'>
+ <source dir='$rootfs_path'/>
+ <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 IP as specified by GUEST_HOSTNAME
+function write_guest_ifcfg_test () {
+ cat <<EOF
+DEVICE=$VIF_GUEST
+BOOTPROTO=static
+ONBOOT=yes
+HOSTNAME=$GUEST_HOSTNAME
+IPADDR=$IP
+NETMASK=$NETMASK
+GATEWAY=$GATEWAY
+NM_CONTROLLED=no
+TYPE=Ethernet
+MTU=1500
+EOF
}
function devel_or_vtest_tools () {
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 lxc-enter-namespace $lxc /usr/sbin/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
EOF
}
-function start_lxc() {
+function lxc_start() {
set -x
set -e
echo 'build mode=' $BUILD_MODE 'test mode=' $TEST_MODE
# the set of preinstalled packages - depends on vbuild or vtest
- if [ -n "$VBUILD_MODE" ] ; then
+ if [ -n "$BUILD_MODE" ] ; then
PREINSTALLED=devel.pkgs
else
PREINSTALLED=vtest.pkgs
f) fcdistro=$OPTARG;;
d) pldistro=$OPTARG;;
p) personality=$OPTARG;;
- n) HOSTNAME=$OPTARG;;
+ n) GUEST_HOSTNAME=$OPTARG;;
r) REPO_URL=$OPTARG;;
P) PREINSTALLED=$OPTARG;;
v) VERBOSE=true; set -x;;
[ -z "$personality" ] && personality=$DEFAULT_PERSONALITY
if [ -n "$BUILD_MODE" ] ; then
- [ -z "$HOSTNAME" ] && HOSTNAME=$lxc
+ [ -z "$GUEST_HOSTNAME" ] && GUEST_HOSTNAME=$lxc
else
- [[ -z "$HOSTNAME" ]] && usage
+ [[ -z "$GUEST_HOSTNAME" ]] && usage
# use -r none to get rid of this warning
if [ "$REPO_URL" == "none" ] ; then
REPO_URL=""
echo "Unknown personality: $personality"
fi
- # need lxc installed before we can run lxc-ls
- # need bridge installed
- create_bridge_if_needed
-
if [ -n "$BUILD_MODE" ] ; then
# Bridge IP affectation
IP=${PRIVATE_PREFIX}$byte
NETMASK=$(masklen_to_netmask $PRIVATE_MASKLEN)
GATEWAY=$PRIVATE_GATEWAY
- VIF_HOST="veth$byte"
+ VIF_HOST="i$byte"
+ BRIDGE_MODE="nat"
+ BRIDGE_IF="$PRIVATE_BRIDGE"
else
- [[ -z "HOSTNAME" ]] && usage
+ [[ -z "GUEST_HOSTNAME" ]] && usage
- IP=$(gethostbyname $HOSTNAME)
+ create_bridge_if_needed
+
+ IP=$(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 $3}')
- VIF_HOST="i$(echo $HOSTNAME | cut -d. -f1)"
+ VIF_HOST="i$(echo $GUEST_HOSTNAME | cut -d. -f1)"
+ BRIDGE_MODE="bridge"
+ BRIDGE_IF="PUBLIC_BRIDGE"
fi
echo "the IP address of container $lxc is $IP, host virtual interface is $VIF_HOST"
git://git.onelab.eu / build.git / commitdiff