[Unit]
Description=Elasticsearch
Documentation=http://www.elastic.co
Wants=network-online.target
After=network-online.target

[Service]
Environment=ES_HOME=/usr/local/lib/elasticsearch/
Environment=CONF_DIR=/usr/local/lib/elasticsearch/config/
Environment=PID_DIR=/var/run/elasticsearch
#EnvironmentFile=-${path.env}

WorkingDirectory=/usr/local/lib/elasticsearch/

User=elasticsearch
Group=elasticsearch
PermissionsStartOnly=true

ExecStart=/usr/local/lib/elasticsearch/bin/elasticsearch -p /var/run/elasticsearch/elasticsearch.pid
ExecStartPre=-/bin/mkdir -p /var/run/elasticsearch
ExecStartPre=/bin/chmod -R 777 /var/run/elasticsearch

StandardOutput=syslog
StandardError=syslog

# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65536

# Specifies the maximum number of processes
LimitNPROC=4096

# Specifies the maximum number of bytes of memory that may be locked into RAM
# Set to "infinity" if you use the 'bootstrap.memory_lock: true' option
# in elasticsearch.yml and 'MAX_LOCKED_MEMORY=unlimited' in ${path.env}
#LimitMEMLOCK=infinity

# Disable timeout logic and wait until process is stopped
TimeoutStopSec=0

# SIGTERM signal is used to stop the Java process
KillSignal=SIGTERM

# Send the signal only to the JVM rather than its control group
KillMode=process

# Java process is never killed
SendSIGKILL=no

# When a JVM receives a SIGTERM signal it exits with code 143
SuccessExitStatus=143

[Install]
WantedBy=multi-user.target