Update to 2022-01-25 15:00

roles/elasticsearch/templates/elasticsearch.service.j2

@@ -0,0 +1,49 @@
+[Unit]
+Description=Elasticsearch
+Documentation=https://www.elastic.co
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+Type=simple
+RuntimeDirectory=elasticsearch
+PrivateTmp=true
+Environment=ES_HOME={{ es_root_dir }}/app
+Environment=ES_PATH_CONF={{ es_root_dir }}/etc
+Environment=ES_TMPDIR={{ es_root_dir }}/tmp
+Environment=PID_DIR=/run/elasticsearch
+WorkingDirectory={{ es_root_dir }}/app
+User={{ es_user }}
+Group={{ es_user }}
+
+ExecStart={{ es_root_dir }}/app/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid
+
+# StandardOutput is configured to redirect to journalctl since
+# some error messages may be logged in standard output before
+# elasticsearch logging system is initialized. Elasticsearch
+# stores its logs in {{ es_root_dir }}/log/
+StandardOutput=journal
+StandardError=inherit
+
+# Specifies the maximum file descriptor number that can be opened by this process
+LimitNOFILE=65535
+# Specifies the maximum number of processes
+LimitNPROC=4096
+# Specifies the maximum size of virtual memory
+LimitAS=infinity
+# Specifies the maximum file size
+LimitFSIZE=infinity
+# Give some time for the process to stop
+TimeoutStopSec=300
+# 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
+