Templates everything + Systemd improvements+fixes + Notifications for restart + Idempotent checks for multiple runs
This commit is contained in:
Dale McDiarmid
parent
3d7d6deef0
commit
37447d1618
9 changed files with 663 additions and 132 deletions
237
templates/init/debian/elasticsearch.j2
Executable file
237
templates/init/debian/elasticsearch.j2
Executable file
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#!/bin/sh
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#
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# /etc/init.d/elasticsearch -- startup script for Elasticsearch
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#
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# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
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# Modified for Debian GNU/Linux by Ian Murdock <imurdock@gnu.ai.mit.edu>.
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# Modified for Tomcat by Stefan Gybas <sgybas@debian.org>.
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# Modified for Tomcat6 by Thierry Carrez <thierry.carrez@ubuntu.com>.
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# Additional improvements by Jason Brittain <jason.brittain@mulesoft.com>.
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# Modified by Nicolas Huray for Elasticsearch <nicolas.huray@gmail.com>.
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#
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### BEGIN INIT INFO
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# Provides: elasticsearch
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# Required-Start: $network $remote_fs $named
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# Required-Stop: $network $remote_fs $named
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Starts elasticsearch
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# Description: Starts elasticsearch using start-stop-daemon
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### END INIT INFO
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PATH=/bin:/usr/bin:/sbin:/usr/sbin
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NAME={{es_instance_name}}_{{default_file | basename}}
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{% if es_config['node.name'] is defined %}
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DESC="Elasticsearch Server - {{es_config['node.name']}}"
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{% else %}
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DESC="Elasticsearch Server - {{es_instance_name}}"
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{% endif %}
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DEFAULT=/etc/default/$NAME
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if [ `id -u` -ne 0 ]; then
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echo "You need root privileges to run this script"
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exit 1
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fi
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. /lib/lsb/init-functions
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if [ -r /etc/default/rcS ]; then
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. /etc/default/rcS
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fi
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# The following variables can be overwritten in $DEFAULT
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# Run Elasticsearch as this user ID and group ID
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ES_USER=elasticsearch
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ES_GROUP=elasticsearch
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# The first existing directory is used for JAVA_HOME (if JAVA_HOME is not defined in $DEFAULT)
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JDK_DIRS="/usr/lib/jvm/java-8-oracle/ /usr/lib/jvm/j2sdk1.8-oracle/ /usr/lib/jvm/jdk-7-oracle-x64 /usr/lib/jvm/java-7-oracle /usr/lib/jvm/j2sdk1.7-oracle/ /usr/lib/jvm/java-7-openjdk /usr/lib/jvm/java-7-openjdk-amd64/ /usr/lib/jvm/java-7-openjdk-armhf /usr/lib/jvm/java-7-openjdk-i386/ /usr/lib/jvm/default-java"
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# Look for the right JVM to use
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for jdir in $JDK_DIRS; do
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if [ -r "$jdir/bin/java" -a -z "${JAVA_HOME}" ]; then
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JAVA_HOME="$jdir"
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fi
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done
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export JAVA_HOME
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# Directory where the Elasticsearch binary distribution resides
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ES_HOME=/usr/share/$NAME
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# Heap size defaults to 256m min, 1g max
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# Set ES_HEAP_SIZE to 50% of available RAM, but no more than 31g
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#ES_HEAP_SIZE=2g
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# Heap new generation
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#ES_HEAP_NEWSIZE=
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# max direct memory
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#ES_DIRECT_SIZE=
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# Additional Java OPTS
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#ES_JAVA_OPTS=
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# Maximum number of open files
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MAX_OPEN_FILES=65535
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# Maximum amount of locked memory
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#MAX_LOCKED_MEMORY=
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# Elasticsearch log directory
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LOG_DIR=/var/log/$NAME
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# Elasticsearch data directory
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DATA_DIR=/var/lib/$NAME
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# Elasticsearch work directory
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WORK_DIR=/tmp/$NAME
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# Elasticsearch configuration directory
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CONF_DIR=/etc/$NAME
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# Elasticsearch configuration file (elasticsearch.yml)
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CONF_FILE=$CONF_DIR/elasticsearch.yml
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# Maximum number of VMA (Virtual Memory Areas) a process can own
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MAX_MAP_COUNT=262144
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# Path to the GC log file
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#ES_GC_LOG_FILE=/var/log/elasticsearch/gc.log
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# Elasticsearch PID file directory
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PID_DIR="/var/run/elasticsearch"
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# End of variables that can be overwritten in $DEFAULT
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# overwrite settings from default file
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if [ -f "$DEFAULT" ]; then
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. "$DEFAULT"
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fi
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# Define other required variables
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PID_FILE="$PID_DIR/$NAME.pid"
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DAEMON=$ES_HOME/bin/elasticsearch
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DAEMON_OPTS="-d -p $PID_FILE --default.config=$CONF_FILE --default.path.home=$ES_HOME --default.path.logs=$LOG_DIR --default.path.data=$DATA_DIR --default.path.work=$WORK_DIR --default.path.conf=$CONF_DIR"
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export ES_HEAP_SIZE
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export ES_HEAP_NEWSIZE
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export ES_DIRECT_SIZE
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export ES_JAVA_OPTS
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# Check DAEMON exists
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test -x $DAEMON || exit 0
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checkJava() {
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if [ -x "$JAVA_HOME/bin/java" ]; then
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JAVA="$JAVA_HOME/bin/java"
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else
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JAVA=`which java`
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fi
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if [ ! -x "$JAVA" ]; then
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echo "Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME"
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exit 1
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fi
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}
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case "$1" in
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start)
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checkJava
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if [ -n "$MAX_LOCKED_MEMORY" -a -z "$ES_HEAP_SIZE" ]; then
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log_failure_msg "MAX_LOCKED_MEMORY is set - ES_HEAP_SIZE must also be set"
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exit 1
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fi
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log_daemon_msg "Starting $DESC"
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pid=`pidofproc -p $PID_FILE elasticsearch`
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if [ -n "$pid" ] ; then
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log_begin_msg "Already running."
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log_end_msg 0
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exit 0
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fi
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# Prepare environment
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mkdir -p "$LOG_DIR" "$DATA_DIR" "$WORK_DIR" && chown "$ES_USER":"$ES_GROUP" "$LOG_DIR" "$DATA_DIR" "$WORK_DIR"
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# Ensure that the PID_DIR exists (it is cleaned at OS startup time)
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if [ -n "$PID_DIR" ] && [ ! -e "$PID_DIR" ]; then
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mkdir -p "$PID_DIR" && chown "$ES_USER":"$ES_GROUP" "$PID_DIR"
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fi
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if [ -n "$PID_FILE" ] && [ ! -e "$PID_FILE" ]; then
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touch "$PID_FILE" && chown "$ES_USER":"$ES_GROUP" "$PID_FILE"
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fi
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if [ -n "$MAX_OPEN_FILES" ]; then
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ulimit -n $MAX_OPEN_FILES
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fi
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if [ -n "$MAX_LOCKED_MEMORY" ]; then
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ulimit -l $MAX_LOCKED_MEMORY
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fi
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if [ -n "$MAX_MAP_COUNT" -a -f /proc/sys/vm/max_map_count ]; then
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sysctl -q -w vm.max_map_count=$MAX_MAP_COUNT
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fi
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# Start Daemon
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start-stop-daemon --start -b --user "$ES_USER" -c "$ES_USER" --pidfile "$PID_FILE" --exec $DAEMON -- $DAEMON_OPTS
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return=$?
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if [ $return -eq 0 ]
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then
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i=0
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timeout=10
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# Wait for the process to be properly started before exiting
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until { cat "$PID_FILE" | xargs kill -0; } >/dev/null 2>&1
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do
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sleep 1
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i=$(($i + 1))
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if [ $i -gt $timeout ]; then
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log_end_msg 1
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exit 1
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fi
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done
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else
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log_end_msg $return
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fi
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;;
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stop)
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log_daemon_msg "Stopping $DESC"
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if [ -f "$PID_FILE" ]; then
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start-stop-daemon --stop --pidfile "$PID_FILE" \
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--user "$ES_USER" \
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--retry=TERM/20/KILL/5 >/dev/null
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if [ $? -eq 1 ]; then
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log_progress_msg "$DESC is not running but pid file exists, cleaning up"
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elif [ $? -eq 3 ]; then
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PID="`cat $PID_FILE`"
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log_failure_msg "Failed to stop $DESC (pid $PID)"
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exit 1
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fi
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rm -f "$PID_FILE"
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else
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log_progress_msg "(not running)"
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fi
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log_end_msg 0
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;;
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status)
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status_of_proc -p $PID_FILE elasticsearch elasticsearch && exit 0 || exit $?
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;;
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restart|force-reload)
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if [ -f "$PID_FILE" ]; then
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$0 stop
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sleep 1
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fi
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$0 start
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;;
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*)
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log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}"
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exit 1
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;;
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esac
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exit 0
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