# pkgs parsing utilities
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_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_MASKLEN=24
-
-# we just try randomly in that range until a free IP address shows up
-PRIVATE_ATTEMPTS=20
-
# constant
PUBLIC_BRIDGE=br0
# 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 () {
cat <<EOF
auto $VIF_GUEST
iface $VIF_GUEST
- address $IP
+ address $GUEST_IP
netmask $NETMASK
gateway $GATEWAY
EOF
EOF
}
-# use fixed IP as specified by GUEST_HOSTNAME
+# use fixed GUEST_IP as specified by GUEST_HOSTNAME
function write_guest_ifcfg_test () {
cat <<EOF
DEVICE=$VIF_GUEST
BOOTPROTO=static
ONBOOT=yes
HOSTNAME=$GUEST_HOSTNAME
-IPADDR=$IP
+IPADDR=$GUEST_IP
NETMASK=$NETMASK
GATEWAY=$GATEWAY
NM_CONTROLLED=no
post_install_build $lxc $personality
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_in_container $lxc dhclient) $VIF_GUEST
+ virsh -c lxc:/// lxc-enter-namespace $lxc /bin/bash -c "dhclient $VIF_GUEST"
else
post_install_myplc $lxc $personality
lxc_start $lxc
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=' $TEST_MODE
-
- # the set of preinstalled packages - depends on vbuild or vtest
- if [ -n "$BUILD_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=$OPTARG;;
- n) GUEST_HOSTNAME=$OPTARG;;
r) REPO_URL=$OPTARG;;
P) PREINSTALLED=$OPTARG;;
v) VERBOSE=true; set -x;;
# parse fixed arguments
[[ -z "$@" ]] && usage
lxc=$1 ; shift
- lxc_root=$path/$lxc
+ lxc_root=/vservers/$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
+ # we can now set GUEST_HOSTNAME safely
[ -z "$GUEST_HOSTNAME" ] && GUEST_HOSTNAME=$lxc
else
- [[ -z "$GUEST_HOSTNAME" ]] && usage
+ # as this command can be used in other contexts, not specifying
+ # a repo is considered a warning
# use -r none to get rid of this warning
if [ "$REPO_URL" == "none" ] ; then
REPO_URL=""
echo "Unknown personality: $personality"
fi
- if [ -n "$BUILD_MODE" ] ; then
+ # compute networking details for the test mode
+ # (build mode relies entirely on dhcp on the private subnet)
+ if [ -z "$BUILD_MODE" ] ; then
- # Bridge IP affectation
- byte=$(random_private_byte)
- IP=${PRIVATE_PREFIX}$byte
- NETMASK=$(masklen_to_netmask $PRIVATE_MASKLEN)
- GATEWAY=$PRIVATE_GATEWAY
- VIF_HOST="i$byte"
- else
- [[ -z "GUEST_HOSTNAME" ]] && usage
-
create_bridge_if_needed
- IP=$(gethostbyname $GUEST_HOSTNAME)
+ GUEST_IP=$(gethostbyname $GUEST_HOSTNAME)
# use same NETMASK as bridge interface br0
MASKLEN=$(ip addr show $PUBLIC_BRIDGE | grep -v inet6 | grep inet | awk '{print $2;}' | cut -d/ -f2)
NETMASK=$(masklen_to_netmask $MASKLEN)
VIF_HOST="i$(echo $GUEST_HOSTNAME | cut -d. -f1)"
fi
- echo "the IP address of container $lxc is $IP, host virtual interface is $VIF_HOST"
-
- # rainchecks
- [ -d $lxc_root ] && \
- { echo "container $lxc already exists in filesystem - exiting" ; exit 1 ; }
- virsh -c 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
git://git.onelab.eu / build.git / blobdiff