occlum/demos/flink/kubernetes/flink-console.sh
2024-06-13 20:08:09 +08:00

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#!/usr/bin/env 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.
################################################################################
# Start a Flink service as a console application. Must be stopped with Ctrl-C
# or with SIGTERM by kill or the controlling process.
USAGE="Usage: flink-console.sh (taskexecutor|zookeeper|historyserver|standalonesession|standalonejob|kubernetes-session|kubernetes-application|kubernetes-taskmanager) [args]"
SERVICE=$1
ARGS=("${@:2}") # get remaining arguments as array
bin=`dirname "$0"`
bin=`cd "$bin"; pwd`
. "$bin"/config.sh
case $SERVICE in
(taskexecutor)
CLASS_TO_RUN=org.apache.flink.runtime.taskexecutor.TaskManagerRunner
;;
(historyserver)
CLASS_TO_RUN=org.apache.flink.runtime.webmonitor.history.HistoryServer
;;
(zookeeper)
CLASS_TO_RUN=org.apache.flink.runtime.zookeeper.FlinkZooKeeperQuorumPeer
;;
(standalonesession)
CLASS_TO_RUN=org.apache.flink.runtime.entrypoint.StandaloneSessionClusterEntrypoint
;;
(standalonejob)
CLASS_TO_RUN=org.apache.flink.container.entrypoint.StandaloneApplicationClusterEntryPoint
;;
(kubernetes-session)
CLASS_TO_RUN=org.apache.flink.kubernetes.entrypoint.KubernetesSessionClusterEntrypoint
;;
(kubernetes-application)
CLASS_TO_RUN=org.apache.flink.kubernetes.entrypoint.KubernetesApplicationClusterEntrypoint
;;
(kubernetes-taskmanager)
CLASS_TO_RUN=org.apache.flink.kubernetes.taskmanager.KubernetesTaskExecutorRunner
;;
(*)
echo "Unknown service '${SERVICE}'. $USAGE."
exit 1
;;
esac
FLINK_TM_CLASSPATH=`constructFlinkClassPath`
if [ "$FLINK_IDENT_STRING" = "" ]; then
FLINK_IDENT_STRING="$USER"
fi
pid=$FLINK_PID_DIR/flink-$FLINK_IDENT_STRING-$SERVICE.pid
mkdir -p "$FLINK_PID_DIR"
# The lock needs to be released after use because this script is started foreground
command -v flock >/dev/null 2>&1
flock_exist=$?
if [[ ${flock_exist} -eq 0 ]]; then
exec 200<"$FLINK_PID_DIR"
flock 200
fi
# Remove the pid file when all the processes are dead
if [ -f "$pid" ]; then
all_dead=0
while read each_pid; do
# Check whether the process is still running
kill -0 $each_pid > /dev/null 2>&1
[[ $? -eq 0 ]] && all_dead=1
done < "$pid"
[ ${all_dead} -eq 0 ] && rm $pid
fi
id=$([ -f "$pid" ] && echo $(wc -l < "$pid") || echo "0")
FLINK_LOG_PREFIX="${FLINK_LOG_DIR}/flink-${FLINK_IDENT_STRING}-${SERVICE}-${id}-${HOSTNAME}"
log="${FLINK_LOG_PREFIX}.log"
log_setting=("-Dlog.file=${log}" "-Dlog4j.configuration=file:${FLINK_CONF_DIR}/log4j-console.properties" "-Dlog4j.configurationFile=file:${FLINK_CONF_DIR}/log4j-console.properties" "-Dlogback.configurationFile=file:${FLINK_CONF_DIR}/logback-console.xml")
echo "Starting $SERVICE as a console application on host $HOSTNAME."
# Add the current process id to pid file
echo $$ >> "$pid" 2>/dev/null
# Release the lock because the java process runs in the foreground and would block other processes from modifying the pid file
[[ ${flock_exist} -eq 0 ]] && flock -u 200
# Evaluate user options for local variable expansion
FLINK_ENV_JAVA_OPTS=$(eval echo ${FLINK_ENV_JAVA_OPTS})
echo "################"
set -x
cp -rf /var/run/secrets /var/run/secrets-copy
cp -rf conf conf-copy
if [ -d pod-template ]; then
cp -rf pod-template pod-template-copy
else
# create dir anyway to avoid hostfs mount error
mkdir -p pod-template-copy
fi
cd occlum_instance_k8s
# exec "$JAVA_RUN" $JVM_ARGS ${FLINK_ENV_JAVA_OPTS} "${log_setting[@]}" -classpath "`manglePathList "$FLINK_TM_CLASSPATH:$INTERNAL_HADOOP_CLASSPATHS"`" ${CLASS_TO_RUN} "${ARGS[@]}"
exec occlum run /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dos.name=Linux $JVM_ARGS ${FLINK_ENV_JAVA_OPTS} "${log_setting[@]}" -classpath "`manglePathList "$FLINK_TM_CLASSPATH:$INTERNAL_HADOOP_CLASSPATHS"`" ${CLASS_TO_RUN} "${ARGS[@]}"