3 # -------------------------------------------------------------------------
4 # Copyright (c) 2018 AT&T Intellectual Property
6 # Licensed under the Apache License, Version 2.0 (the "License");
7 # you may not use this file except in compliance with the License.
8 # You may obtain a copy of the License at
10 # http://www.apache.org/licenses/LICENSE-2.0
12 # Unless required by applicable law or agreed to in writing, software
13 # distributed under the License is distributed on an "AS IS" BASIS,
14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 # See the License for the specific language governing permissions and
16 # limitations under the License.
18 # -------------------------------------------------------------------------
21 if [[ $# -ne 2 ]]; then
22 echo "Usage: wait-for-port hostname port" >&2
29 echo "Waiting for $host port $port open"
30 until telnet $host $port </dev/null 2>/dev/null | grep -q '^Connected'; do
34 echo "$host port $port is open"