diff options
Diffstat (limited to 'charms/trusty/neutron-contrail/scripts')
6 files changed, 206 insertions, 0 deletions
diff --git a/charms/trusty/neutron-contrail/scripts/create-vrouter.sh b/charms/trusty/neutron-contrail/scripts/create-vrouter.sh new file mode 100755 index 0000000..686a7b7 --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/create-vrouter.sh @@ -0,0 +1,133 @@ +#!/bin/sh -e +# +# Script used to configure vRouter interface + +configVRouter() +{ + cat juju-header + echo "auto $1" + if [ -e "$2" ]; then + cat "$2" + else + echo "iface $1 inet manual" + fi + printf "\n%s\n" "auto vhost0" + if [ -e "$3" ]; then + cat "$3" + else + echo "iface vhost0 inet dhcp" + fi + cat <<-EOF + pre-up ip link add address \$(cat /sys/class/net/$1/address) type vhost + pre-up vif --add $1 --mac \$(cat /sys/class/net/$1/address) --vrf 0 --vhost-phys --type physical + pre-up vif --add vhost0 --mac \$(cat /sys/class/net/$1/address) --vrf 0 --type vhost --xconnect $1 + post-down vif --list | awk '/^vif.*OS: vhost0/ {split(\$1, arr, "\\/"); print arr[2];}' | xargs vif --delete + post-down vif --list | awk '/^vif.*OS: $1/ {split(\$1, arr, "\\/"); print arr[2];}' | xargs vif --delete + post-down ip link delete vhost0 + EOF +} + +ifacedown() +{ + for iface; do + # ifdown interface + # if bridge, save list of interfaces + # if bond, save list of slaves + if [ ! -e /sys/class/net/$iface ]; then + continue + fi + [ -d /sys/class/net/$iface/bridge ] && saveIfaces $iface + [ -d /sys/class/net/$iface/bonding ] && saveSlaves $iface + ifdown --force $iface + done +} + +ifaceup() +{ + for iface; do + # ifup interface + # if bridge, restore list of interfaces + # restore list of slaves if exists (bond) + restoreSlaves $iface + ifup $iface + [ -d /sys/class/net/$iface/bridge ] && restoreIfaces $iface + done + return 0 +} + +restoreIfaces() +{ + if [ -e $TMP/$1.ifaces ]; then + cat $TMP/$1.ifaces | xargs -n 1 brctl addif $1 || true + fi +} + +restoreSlaves() +{ + if [ -e $TMP/$1.slaves ]; then + cat $TMP/$1.slaves | xargs ifup + fi +} + +saveIfaces() +{ + if [ -z "$(find /sys/class/net/$1/brif -maxdepth 0 -empty)" ]; then + find /sys/class/net/$1/brif | tail -n +2 | xargs -n 1 basename \ + > $TMP/$1.ifaces + fi +} + +saveSlaves() +{ + if [ -s /sys/class/net/$1/bonding/slaves ]; then + cat /sys/class/net/$1/bonding/slaves | tr " " "\n" \ + > $TMP/$1.slaves + fi +} + +TMP=$(mktemp -d /tmp/create-vrouter.XXX) + +if [ $# -ne 0 ]; then + interface=$1 +else + # use default gateway interface + interface=$(route -n | awk '$1 == "0.0.0.0" { print $8 }') +fi + +ifacedown $interface vhost0; sleep 5 +# add interfaces.d source line to /etc/network/interfaces +if ! grep -q '^[[:blank:]]*source /etc/network/interfaces\.d/\*\.cfg[[:blank:]]*$' \ + /etc/network/interfaces; then + printf "\n%s\n" "source /etc/network/interfaces.d/*.cfg" \ + >> /etc/network/interfaces + # it's possible for conflicting network config to exist in + # /etc/network/interfaces.d when we start sourcing it + # so disable any config as a precautionary measure + for cfg in /etc/network/interfaces.d/*.cfg; do + [ -e "$cfg" ] || continue + mv "$cfg" "$cfg.save" + done +fi +mkdir -p /etc/network/interfaces.d +for cfg in /etc/network/interfaces /etc/network/interfaces.d/*.cfg \ + /etc/network/*.config; do + # for each network interfaces config, extract the config for + # the chosen interface whilst commenting it out in the subsequent + # replacement config + [ -e "$cfg" ] || continue + awk -v interface=$interface -v interface_cfg=$TMP/interface.cfg \ + -v vrouter_cfg=$TMP/vrouter.cfg -f vrouter-interfaces.awk "$cfg" \ + > $TMP/interfaces.cfg + if ! diff $TMP/interfaces.cfg "$cfg" > /dev/null; then + # create backup + mv "$cfg" "$cfg.save" + # substitute replacement config for original config + cat juju-header $TMP/interfaces.cfg > "$cfg" + fi +done +# use extracted interface config to create new vrouter config +configVRouter $interface $TMP/interface.cfg $TMP/vrouter.cfg \ + > /etc/network/interfaces.d/vrouter.cfg +ifaceup $interface vhost0 + +rm -rf $TMP diff --git a/charms/trusty/neutron-contrail/scripts/interfaces b/charms/trusty/neutron-contrail/scripts/interfaces new file mode 100644 index 0000000..0356643 --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/interfaces @@ -0,0 +1,7 @@ +# This file describes the network interfaces available on your system +# and how to activate them. For more information see interfaces(5). + +# The loopback network interface +auto lo +iface lo inet loopback + diff --git a/charms/trusty/neutron-contrail/scripts/juju-header b/charms/trusty/neutron-contrail/scripts/juju-header new file mode 100644 index 0000000..fccac13 --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/juju-header @@ -0,0 +1,5 @@ +############################################################################### +# [ WARNING ] +# Configuration file maintained by Juju. Local changes may be overwritten. +############################################################################### + diff --git a/charms/trusty/neutron-contrail/scripts/remove-juju-bridge.sh b/charms/trusty/neutron-contrail/scripts/remove-juju-bridge.sh new file mode 100755 index 0000000..d9a9ec1 --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/remove-juju-bridge.sh @@ -0,0 +1,17 @@ +#!/bin/sh -e +# +# Script used to remove Juju LXC bridge on MAAS systems + +if [ ! -e /sys/class/net/juju-br0 ]; then + exit 0 +fi + +interface=$(find /sys/class/net/juju-br0/brif | sed -n -e '2p' | xargs basename) + +ifdown --force $interface juju-br0; sleep 5 +cp interfaces /etc/network +cat <<-EOF >> /etc/network/interfaces + auto $interface + iface $interface inet dhcp + EOF +ifup $interface diff --git a/charms/trusty/neutron-contrail/scripts/vhost-phys.sh b/charms/trusty/neutron-contrail/scripts/vhost-phys.sh new file mode 100755 index 0000000..6565d1c --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/vhost-phys.sh @@ -0,0 +1,6 @@ +#!/bin/sh -e +# +# Script used to determine physical interface of vhost0 + +mac=$(cat /sys/class/net/vhost0/address) +vif --list | awk -v mac=$mac 'BEGIN { RS="\n\n" }; $3 != "vhost0" && $0 ~ "HWaddr:" mac { print $3; exit 0 }' diff --git a/charms/trusty/neutron-contrail/scripts/vrouter-interfaces.awk b/charms/trusty/neutron-contrail/scripts/vrouter-interfaces.awk new file mode 100644 index 0000000..d8e5851 --- /dev/null +++ b/charms/trusty/neutron-contrail/scripts/vrouter-interfaces.awk @@ -0,0 +1,38 @@ +function strip(s) +{ + sub(/^[[:blank:]]+/, "", s) + sub(/[[:blank:]]+$/, "", s) + return s +} + +/^[[:blank:]]*(iface|mapping|auto|allow-[^ ]+|source) / { + s_iface = 0; iface = 0 +} + +$0 ~ "^[[:blank:]]*auto (" interface "|vhost0)[[:blank:]]*$" { print "#" $0; next } + +$0 ~ "^[[:blank:]]*iface (" interface "|vhost0) " { + s_iface = 1 + if ($2 == interface) { + iface = 1 + print "iface", interface, $3, "manual" > interface_cfg + print "iface vhost0", $3, $4 > vrouter_cfg + } + print "#" $0 + next +} + +s_iface == 1 { + if (iface == 1) { + if (match($1, "^address|netmask|broadcast|metric|gateway$")) { + cfg = vrouter_cfg + } else { + cfg = interface_cfg + } + print " " strip($0) > cfg + } + print "#" $0 + next +} + +{ print $0 } |