Add a systemd standard opentsdb service script to launch using the port

defined in the config file. Fixes #2033

Makefile.am

@@ -1,4 +1,4 @@
-# Copyright (C) 2011-2012  The OpenTSDB Authors.
+# Copyright (C) 2011-2021  The OpenTSDB Authors.
 #
 # This library is free software: you can redistribute it and/or modify it
 # under the terms of the GNU Lesser General Public License as published
@@ -30,6 +30,7 @@ dist_noinst_SCRIPTS = src/create_table.sh src/upgrade_1to2.sh src/mygnuplot.sh \
   src/mygnuplot.bat src/opentsdb.conf tools/opentsdb_restart.py src/logback.xml
 dist_noinst_DATA = pom.xml.in build-aux/rpm/opentsdb.conf \
   build-aux/rpm/logback.xml build-aux/rpm/init.d/opentsdb \
+  build-aux/rpm/systemd/opentsdb.service \
   build-aux/rpm/systemd/[email protected]
 tsdb_SRC := \
 	src/core/AbstractSpanGroup.java \
@@ -734,6 +735,7 @@ install-data-etc:
 	init_file="$(top_srcdir)/build-aux/rpm/init.d/opentsdb" ; \
 	echo " $(INSTALL_SCRIPT)" $$init_file "$$destdatainitdir" ; \
 	$(INSTALL_SCRIPT) $$init_file "$$destdatainitdir" || exit 1; \
+	systemd_file="$(top_srcdir)/build-aux/rpm/systemd/opentsdb.service" ; \
 	systemd_file="$(top_srcdir)/build-aux/rpm/systemd/[email protected]" ; \
 	echo " $(INSTALL_SCRIPT)" $$systemd_file "$$destdatasystemddir" ; \
 	$(INSTALL_SCRIPT) $$systemd_file "$$destdatasystemddir" || exit 1;

build-aux/rpm/opentsdb.conf

@@ -30,7 +30,7 @@ tsd.http.staticroot = /usr/share/opentsdb/static/
 
 # Where TSD should write it's cache files to
 # *** REQUIRED ***
-tsd.http.cachedir = /tmp/opentsdb
+tsd.http.cachedir = /var/tmp/opentsdb
 
 # --------- CORE ----------
 # Whether or not to automatically create UIDs for new metric types, default

build-aux/rpm/systemd/opentsdb.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=OpenTSDB
+After=network-online.target
+Before=shutdown.target
+
+[Service]
+Type=simple
+User=opentsdb
+Group=opentsdb
+LimitNOFILE=65535
+Environment='JVMARGS=-DLOG_FILE=/var/log/opentsdb/opentsdb.log -DQUERY_LOG=/var/log/opentsdb/queries.log -XX:+ExitOnOutOfMemoryError -enableassertions -enablesystemassertions'
+ExecStart=/usr/bin/tsdb tsd --config /usr/share/opentsdb/etc/opentsdb/opentsdb.conf
+Restart=always
+StandardOutput=journal

opentsdb.spec.in

@@ -57,6 +57,7 @@ rm -rf %{buildroot}
 make install DESTDIR=%{buildroot}
 mkdir -p %{buildroot}%{_localstatedir}/cache/opentsdb
 mkdir -p %{buildroot}%{_localstatedir}/log/opentsdb
+mkdir -p %{buildroot}%{_localstatedir}/tmp/opentsdb
 mkdir -p %{buildroot}%{_datarootdir}/opentsdb/plugins
 # TODO: Use alternatives to manage the init script and configuration.
 
@@ -77,8 +78,10 @@ rm -rf %{buildroot}
 %doc
 %{_datarootdir}/opentsdb
 %{_bindir}/tsdb
+%dir %attr(0755,opentsdb,opentsdb) %{_tmppath}/opentsdb
 %dir %attr(0755,opentsdb,opentsdb) %{_localstatedir}/cache/opentsdb
 %dir %attr(0755,opentsdb,opentsdb) %{_localstatedir}/log/opentsdb
+%dir %attr(0755,opentsdb,opentsdb) %{_localstatedir}/tmp/opentsdb
 
 %changelog
 
@@ -91,6 +94,7 @@ if [ $1 -eq 1 ]; then
   # we're installing the first version of this package
   ln -s %{_datarootdir}/opentsdb/etc/opentsdb /etc/opentsdb
   if [ -d /run/systemd/system ]; then
+    ln -s %{_datarootdir}/opentsdb/etc/systemd/system/opentsdb.service /lib/systemd/system
     ln -s %{_datarootdir}/opentsdb/etc/systemd/system/[email protected] /lib/systemd/system
     systemctl daemon-reload
   else
@@ -104,6 +108,7 @@ if [ $1 -eq 0 ]; then
   # we're removing last version of this package
   [ -L /etc/opentsdb ] && rm -f /etc/opentsdb
   [ -L /etc/init.d/opentsdb ] && rm -f /etc/init.d/opentsdb
+  [ -L /lib/systemd/system/opentsdb.service ] && rm -f /lib/systemd/system/opentsdb.service
   [ -L /lib/systemd/system/[email protected] ] && rm -f /lib/systemd/system/[email protected]
   [ -d /run/systemd/system ] && systemctl daemon-reload
 fi