diff options
Diffstat (limited to 'network/scripts')
| -rwxr-xr-x | network/scripts/run-os-net-config.sh | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/network/scripts/run-os-net-config.sh b/network/scripts/run-os-net-config.sh new file mode 100755 index 00000000..fc1e6d54 --- /dev/null +++ b/network/scripts/run-os-net-config.sh @@ -0,0 +1,136 @@ +#!/bin/bash +# Note this script expects the following environment variables to be set +# normally these are provided by the calling SoftwareConfig resource, but +# they may also be set manually for testing +# $bridge_name : The bridge device name to apply +# $interface_name : The interface name to apply +# +# Also this token is replaced via a str_replace in the SoftwareConfig running +# the script - in future we may extend this to also work with a variable, e.g +# a deployment input via input_values +# $network_config : the json serialized os-net-config config to apply +# +set -ux + +function get_metadata_ip() { + + local METADATA_IP + + # Look for a variety of Heat transports + # FIXME: Heat should provide a way to obtain this in a single place + for URL in os-collect-config.cfn.metadata_url os-collect-config.heat.auth_url os-collect-config.request.metadata_url os-collect-config.zaqar.auth_url; do + METADATA_IP=$(os-apply-config --key $URL --key-default '' --type raw 2>/dev/null | sed -e 's|http.*://\([^:]*\).*|\1|') + [ -n "$METADATA_IP" ] && break + done + + echo $METADATA_IP + +} + +function is_local_ip() { + local IP_TO_CHECK=$1 + if ip -o a | grep "inet6\? $IP_TO_CHECK/" &>/dev/null; then + return 0 + else + return 1 + fi +} + +function ping_metadata_ip() { + local METADATA_IP=$(get_metadata_ip) + + if [ -n "$METADATA_IP" ] && ! is_local_ip $METADATA_IP; then + + echo -n "Trying to ping metadata IP ${METADATA_IP}..." + + local COUNT=0 + until ping -c 1 $METADATA_IP &> /dev/null; do + COUNT=$(( $COUNT + 1 )) + if [ $COUNT -eq 10 ]; then + echo "FAILURE" + echo "$METADATA_IP is not pingable." >&2 + exit 1 + fi + done + echo "SUCCESS" + + else + echo "No metadata IP found. Skipping." + fi +} + +function configure_safe_defaults() { + +[[ $? == 0 ]] && return 0 + +cat > /etc/os-net-config/dhcp_all_interfaces.yaml <<EOF_CAT +# This file is an autogenerated safe defaults file for os-net-config +# which runs DHCP on all discovered interfaces to ensure connectivity +# back to the undercloud for updates +network_config: +EOF_CAT + + for iface in $(ls /sys/class/net | grep -v ^lo$); do + local mac_addr_type="$(cat /sys/class/net/${iface}/addr_assign_type)" + if [ "$mac_addr_type" != "0" ]; then + echo "Device has generated MAC, skipping." + else + ip link set dev $iface up &>/dev/null + HAS_LINK="$(cat /sys/class/net/${iface}/carrier)" + + TRIES=10 + while [ "$HAS_LINK" == "0" -a $TRIES -gt 0 ]; do + HAS_LINK="$(cat /sys/class/net/${iface}/carrier)" + if [ "$HAS_LINK" == "1" ]; then + break + else + sleep 1 + fi + TRIES=$(( TRIES - 1 )) + done + if [ "$HAS_LINK" == "1" ] ; then +cat >> /etc/os-net-config/dhcp_all_interfaces.yaml <<EOF_CAT + - + type: interface + name: $iface + use_dhcp: true +EOF_CAT + fi + fi + done + os-net-config -c /etc/os-net-config/dhcp_all_interfaces.yaml -v --detailed-exit-codes --cleanup + RETVAL=$? + if [[ $RETVAL == 2 ]]; then + ping_metadata_ip + elif [[ $RETVAL != 0 ]]; then + echo "ERROR: configuration of safe defaults failed." + fi +} + +if [ -n '$network_config' ]; then + trap configure_safe_defaults EXIT + + mkdir -p /etc/os-net-config + # Note these variables come from the calling heat SoftwareConfig + echo '$network_config' > /etc/os-net-config/config.json + sed -i "s/bridge_name/$bridge_name/" /etc/os-net-config/config.json + sed -i "s/interface_name/$interface_name/" /etc/os-net-config/config.json + + os-net-config -c /etc/os-net-config/config.json -v --detailed-exit-codes + RETVAL=$? + if [[ $RETVAL == 2 ]]; then + ping_metadata_ip + + #NOTE: dprince this udev rule can apparently leak DHCP processes? + # https://bugs.launchpad.net/tripleo/+bug/1538259 + # until we discover the root cause we can simply disable the + # rule because networking has already been configured at this point + if [ -f /etc/udev/rules.d/99-dhcp-all-interfaces.rules ]; then + rm /etc/udev/rules.d/99-dhcp-all-interfaces.rules + fi + + elif [[ $RETVAL != 0 ]]; then + echo "ERROR: os-net-config configuration failed." >&2 + exit 1 + fi +fi |