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

[Service]
Environment=ES_HOME={{es_home}}
Environment=CONF_DIR={{instance_config_directory}}
Environment=CONF_FILE={{instance_config_directory}}/elasticsearch.yml
Environment=DATA_DIR={{data_dir}}
Environment=LOG_DIR={{log_dir}}
Environment=PID_DIR={{pid_dir}}
EnvironmentFile=-{{instance_default_file}}

User={{es_user}}
Group={{es_group}}

ExecStart={{es_home}}/bin/elasticsearch \
                                                -Des.pidfile=$PID_DIR/elasticsearch.pid \
                                                -Des.default.path.home=$ES_HOME \
                                                -Des.default.path.logs=$LOG_DIR \
                                                -Des.default.path.data=$DATA_DIR \
                                                -Des.default.config=$CONF_FILE \
                                                -Des.default.path.conf=$CONF_DIR

# Connects standard output to /dev/null
StandardOutput=null

# Connects standard error to journal
StandardError=journal

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

# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65535

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

# Shutdown delay in seconds, before process is tried to be killed with KILL (if configured)
TimeoutStopSec=20

[Install]
WantedBy=multi-user.target