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#!/bin/sh
# ============LICENSE_START====================================================
# Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
# Modifications Copyright (C) 2022 Nordix Foundation.
# =============================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END======================================================
usage() {
echo args: [-t timeout] [-c command] hostname1 port1 hostname2 port2 ... >&2
exit 1
}
tmout=300
cmd=
while getopts c:t: opt
do
case "$opt" in
c)
cmd="$OPTARG"
;;
t)
tmout="$OPTARG"
;;
*)
usage
;;
esac
done
nargs=$((OPTIND-1))
shift "$nargs"
even_args=$(($#%2))
if [ $# -lt 2 ] || [ "$even_args" -ne 0 ]
then
usage
fi
while [ $# -ge 2 ]
do
export host="$1"
export port="$2"
shift
shift
echo "Waiting for $host port $port..."
while [ "$tmout" -gt 0 ]
do
if command -v docker > /dev/null 2>&1
then
docker ps
fi
nc -vz "$host" "$port"
rc=$?
if [ $rc -eq 0 ]
then
break
else
tmout=$((tmout-1))
sleep 1
fi
done
if [ $rc -ne 0 ]
then
echo "$host port $port cannot be reached"
exit $rc
fi
done
$cmd
exit 0
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