2023-06-29 16:39:09 +02:00

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#!/bin/bash
#
# /etc/init.d/<%= @program_name %> -- startup script for Elasticsearch
#
### BEGIN INIT INFO
# Provides: <%= @program_name %>
# Required-Start: $network $remote_fs $named
# Required-Stop: $network $remote_fs $named
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts elasticsearch
# Description: Starts elasticsearch using start-stop-daemon
### END INIT INFO
PATH=/bin:/usr/bin:/sbin:/usr/sbin
NAME=<%= @program_name %>
DESC="Elasticsearch Server"
DEFAULT=/etc/default/$NAME
if [ `id -u` -ne 0 ]; then
echo "You need root privileges to run this script"
exit 1
fi
. /lib/lsb/init-functions
if [ -r /etc/default/rcS ]; then
. /etc/default/rcS
fi
# The following variables can be overwritten in $DEFAULT
# Directory where the Elasticsearch binary distribution resides
ES_HOME=/usr/share/$NAME
# Additional Java OPTS
#ES_JAVA_OPTS=
# Maximum number of open files
MAX_OPEN_FILES=65535
# Maximum amount of locked memory
#MAX_LOCKED_MEMORY=
# Elasticsearch configuration directory
ES_PATH_CONF=/etc/$NAME
# Maximum number of VMA (Virtual Memory Areas) a process can own
MAX_MAP_COUNT=262144
# Elasticsearch PID file directory
PID_DIR="/var/run/elasticsearch"
# End of variables that can be overwritten in $DEFAULT
# overwrite settings from default file
if [ -f "$DEFAULT" ]; then
. "$DEFAULT"
fi
<% if @install_type != 'tarball' %>
# ES_USER and ES_GROUP settings were removed
if [ ! -z "$ES_USER" ] || [ ! -z "$ES_GROUP" ]; then
echo "ES_USER and ES_GROUP settings are no longer supported. To run as a custom user/group use the archive distribution of Elasticsearch."
exit 1
fi
<% end %>
# Define other required variables
PID_FILE="$PID_DIR/$NAME.pid"
DAEMON=$ES_HOME/bin/elasticsearch
DAEMON_OPTS="-d -p $PID_FILE"
export ES_JAVA_OPTS
export JAVA_HOME
export ES_PATH_CONF
if [ ! -x "$DAEMON" ]; then
echo "The elasticsearch startup script does not exists or it is not executable, tried: $DAEMON"
exit 1
fi
case "$1" in
start)
log_daemon_msg "Starting $DESC"
pid=`pidofproc -p $PID_FILE elasticsearch`
if [ -n "$pid" ] ; then
log_begin_msg "Already running."
log_end_msg 0
exit 0
fi
# Ensure that the PID_DIR exists (it is cleaned at OS startup time)
if [ -n "$PID_DIR" ] && [ ! -e "$PID_DIR" ]; then
mkdir -p "$PID_DIR" && chown elasticsearch:elasticsearch "$PID_DIR"
fi
if [ -n "$PID_FILE" ] && [ ! -e "$PID_FILE" ]; then
touch "$PID_FILE" && chown elasticsearch:elasticsearch "$PID_FILE"
fi
if [ -n "$MAX_OPEN_FILES" ]; then
ulimit -n $MAX_OPEN_FILES
fi
if [ -n "$MAX_LOCKED_MEMORY" ]; then
ulimit -l $MAX_LOCKED_MEMORY
fi
if [ -n "$MAX_MAP_COUNT" -a -f /proc/sys/vm/max_map_count ] && [ "$MAX_MAP_COUNT" -gt $(cat /proc/sys/vm/max_map_count) ]; then
sysctl -q -w vm.max_map_count=$MAX_MAP_COUNT
fi
# Start Daemon
start-stop-daemon -d $ES_HOME --start --user elasticsearch -c elasticsearch --pidfile "$PID_FILE" --exec $DAEMON -- $DAEMON_OPTS
return=$?
if [ $return -eq 0 ]; then
i=0
timeout=10
# Wait for the process to be properly started before exiting
until { kill -0 `cat "$PID_FILE"`; } >/dev/null 2>&1
do
sleep 1
i=$(($i + 1))
if [ $i -gt $timeout ]; then
log_end_msg 1
exit 1
fi
done
fi
log_end_msg $return
exit $return
;;
stop)
log_daemon_msg "Stopping $DESC"
if [ -f "$PID_FILE" ]; then
start-stop-daemon --stop --pidfile "$PID_FILE" \
--user elasticsearch \
--quiet \
--retry forever/TERM/20 > /dev/null
if [ $? -eq 1 ]; then
log_progress_msg "$DESC is not running but pid file exists, cleaning up"
elif [ $? -eq 3 ]; then
PID="`cat $PID_FILE`"
log_failure_msg "Failed to stop $DESC (pid $PID)"
exit 1
fi
rm -f "$PID_FILE"
else
log_progress_msg "(not running)"
fi
log_end_msg 0
;;
status)
status_of_proc -p $PID_FILE elasticsearch elasticsearch && exit 0 || exit $?
;;
restart|force-reload)
if [ -f "$PID_FILE" ]; then
$0 stop
fi
$0 start
;;
*)
log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}"
exit 1
;;
esac
exit 0