#!/bin/sh

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.

set -e
set -u

address="$1"
port="$2"
topic="$3"

# Wait until Kafka is up and running by checking the port it exposes.
while [ -z "`netstat -lnt | egrep :$port`" ]; do
  sleep 1
done

# Create the topic.
kafka-topics.sh --create \
  --bootstrap-server "$address:$port" \
  --replication-factor 1 \
  --partitions 1 \
  --topic "$topic"
