[Unit]
Description=Tomcat - instance %i
After=syslog.target network.target

[Service]
Type=forking

User=root
Group=root

WorkingDirectory=/opt/tomcat/

Environment="JAVA_HOME=/usr/lib/jvm/java-11"
Environment="JAVA_OPTS=-Djava.security.egd=file:///dev/urandom"

Environment="CATALINA_PID=/opt/tomcat/bin/tomcat.pid"
Environment="CATALINA_BASE=/opt/tomcat"
Environment="CATALINA_HOME=/opt/tomcat"
Environment="CATALINA_OPTS=-Xms2048m -Xmx2048m -server -XX:+UseParallelGC"

ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/opt/tomcat/bin/shutdown.sh

#RestartSec=10
#Restart=always

[Install]
WantedBy=multi-user.target