#!/bin/bash
+set -e
+
+function ping_retry() {
+ local IP_ADDR=$1
+ local TIMES=${2:-'10'}
+ local COUNT=0
+ local PING_CMD=ping
+ if [[ $IP_ADDR =~ ":" ]]; then
+ PING_CMD=ping6
+ fi
+ until [ $COUNT -ge $TIMES ]; do
+ if $PING_CMD -w 300 -c 1 $IP_ADDR &> /dev/null; then
+ echo "Ping to $IP_ADDR succeeded."
+ return 0
+ fi
+ echo "Ping to $IP_ADDR failed. Retrying..."
+ COUNT=$(($COUNT + 1))
+ done
+ return 1
+}
# For each unique remote IP (specified via Heat) we check to
# see if one of the locally configured networks matches and if so we
for REMOTE_IP in $(echo $REMOTE_IPS | sed -e "s| |\n|g" | sort -u); do
if [[ $REMOTE_IP =~ ":" ]]; then
networks=$(ip -6 r | grep -v default | cut -d " " -f 1 | grep -v "unreachable")
- ping=ping6
else
networks=$(ip r | grep -v default | cut -d " " -f 1)
- ping=ping
fi
for LOCAL_NETWORK in $networks; do
in_network=$(python -c "import ipaddr; net=ipaddr.IPNetwork('$LOCAL_NETWORK'); addr=ipaddr.IPAddress('$REMOTE_IP'); print(addr in net)")
if [[ $in_network == "True" ]]; then
- echo -n "Trying to ping $REMOTE_IP for local network $LOCAL_NETWORK..."
- if ! $ping -W 300 -c 1 $REMOTE_IP &> /dev/null; then
+ echo "Trying to ping $REMOTE_IP for local network ${LOCAL_NETWORK}."
+ set +e
+ if ! ping_retry $REMOTE_IP; then
echo "FAILURE"
echo "$REMOTE_IP is not pingable. Local Network: $LOCAL_NETWORK" >&2
exit 1
fi
+ set -e
echo "SUCCESS"
fi
done
# multiple gateways.
function ping_default_gateways() {
DEFAULT_GW=$(ip r | grep ^default | cut -d " " -f 3)
+ set +e
for GW in $DEFAULT_GW; do
echo -n "Trying to ping default gateway ${GW}..."
- if ! ping -c 1 $GW &> /dev/null; then
+ if ! ping_retry $GW; then
echo "FAILURE"
echo "$GW is not pingable."
exit 1
fi
done
+ set -e
echo "SUCCESS"
}