| #!/bin/bash |
| ################################################################################ |
| # 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. |
| ################################################################################ |
| # |
| # This script follows the pattern described in the docker best practices here: |
| # https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#entrypoint |
| ################################################################################ |
| |
| set -euo pipefail |
| |
| DATA_DIR="/var/lib/hive" |
| LOG_DIR="$DATA_DIR/logs" |
| HIVE_HOME="/opt/hive" |
| export JAVA_HOME=$(which java | xargs readlink -f | sed "s:/bin/java::") |
| export HADOOP_HOME=/opt/hadoop |
| |
| function print_help { |
| echo "Supported commands:" |
| echo " hms - start the hive metastore service" |
| echo " help - print useful information and exit" |
| echo "" |
| echo "Other commands can be specified to run shell commands." |
| } |
| |
| function run_hive_metastore() { |
| # If the derby files do not exist, then initialize the schema. |
| if [ ! -d "${DATA_DIR}/metastore/metastore_db" ]; then |
| $HIVE_HOME/bin/schematool -dbType derby -initSchema |
| fi |
| # Start the Hive Metastore. |
| exec $HIVE_HOME/bin/hive --service metastore |
| } |
| |
| # If no arguments are passed, print the help. |
| if [[ $# -eq 0 ]]; then |
| print_help |
| exit 1 |
| fi |
| |
| mkdir -p $DATA_DIR |
| mkdir -p $LOG_DIR |
| if [[ "$1" == "hms" ]]; then |
| mkdir -p $DATA_DIR |
| mkdir -p $LOG_DIR |
| run_hive_metastore |
| exit 0 |
| elif [[ "$1" == "help" ]]; then |
| print_help |
| exit 0 |
| fi |
| # Support calling anything else in the container. |
| exec "$@" |