2023-01-13 12:22:21 +01:00
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[Unit]
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Description=ElasticSearch - Distributed and RESTful search engine
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Documentation=https://elastic.co
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After=network.target
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[Service]
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Type=simple
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User=__APP__
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Group=__APP__
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2023-02-08 13:09:06 +01:00
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RuntimeDirectory=__APP__
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2023-01-13 12:22:21 +01:00
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Environment="ES_JAVA_HOME=__FINALPATH__/jdk"
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Environment="ES_PATH_CONF=__FINALPATH__/config"
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Environment="PID_DIR=/run/__APP__"
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Environment="ES_SD_NOTIFY=true"
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WorkingDirectory=__FINALPATH__/
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ExecStart=__FINALPATH__/bin/elasticsearch -p ${PID_DIR}/__APP__.pid --quiet
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StandardOutput=append:/var/log/__APP__/__APP__.log
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StandardError=inherit
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# Specifies the maximum file descriptor number that can be opened by this process
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LimitNOFILE=65535
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# Specifies the maximum number of processes
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LimitNPROC=4096
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# Specifies the maximum size of virtual memory
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LimitAS=infinity
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# Specifies the maximum file size
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LimitFSIZE=infinity
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# Disable timeout logic and wait until process is stopped
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TimeoutStopSec=0
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# SIGTERM signal is used to stop the Java process
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KillSignal=SIGTERM
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# Send the signal only to the JVM rather than its control group
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KillMode=process
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# Java process is never killed
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SendSIGKILL=no
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# When a JVM receives a SIGTERM signal it exits with code 143
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SuccessExitStatus=143
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# Allow a slow startup before the systemd notifier module kicks in to extend the timeout
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TimeoutStartSec=900
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# Sandboxing options to harden security
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# Depending on specificities of your service/app, you may need to tweak these
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# .. but this should be a good baseline
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# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
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NoNewPrivileges=yes
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PrivateTmp=yes
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PrivateDevices=yes
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RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
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RestrictNamespaces=yes
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RestrictRealtime=yes
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DevicePolicy=closed
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ProtectClock=yes
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ProtectHostname=yes
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ProtectProc=invisible
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ProtectSystem=full
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ProtectControlGroups=yes
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ProtectKernelModules=yes
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ProtectKernelTunables=yes
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LockPersonality=yes
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SystemCallArchitectures=native
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SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap @cpu-emulation @privileged
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# Denying access to capabilities that should not be relevant for webapps
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# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
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CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD
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CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
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CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT
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CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK
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CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM
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CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
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CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE
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CapabilityBoundingSet=~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW
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CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG
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[Install]
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WantedBy=multi-user.target
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