Original tomcat.service

[billson@virtual-jenkins ~]$ sudo yum info tomcat
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirror.nus.edu.sg
 * extras: mirror.nus.edu.sg
 * updates: mirror.nus.edu.sg
Installed Packages
Name        : tomcat
Arch        : noarch
Version     : 7.0.76
Release     : 9.el7_6
Size        : 303 k
Repo        : installed
From repo   : updates
Summary     : Apache Servlet/JSP Engine, RI for Servlet 3.0/JSP 2.2 API
URL         : http://tomcat.apache.org/
License     : ASL 2.0
Description : Tomcat is the servlet container that is used in the official Reference
            : Implementation for the Java Servlet and JavaServer Pages technologies.
            : The Java Servlet and JavaServer Pages specifications are developed by
            : Sun under the Java Community Process.
            :
            : Tomcat is developed in an open and participatory environment and
            : released under the Apache Software License version 2.0. Tomcat is intended
            : to be a collaboration of the best-of-breed developers from around the world.

/usr/lib/systemd/system/tomcat.service

# Systemd unit file for default tomcat
#
# To create clones of this service:
# DO NOTHING, use tomcat@.service instead.

[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=simple
EnvironmentFile=/etc/tomcat/tomcat.conf
Environment="NAME="
EnvironmentFile=-/etc/sysconfig/tomcat
ExecStart=/usr/libexec/tomcat/server start
SuccessExitStatus=143
User=tomcat

[Install]
WantedBy=multi-user.target





/usr/lib/systemd/system/tomcat@.service

# Systemd unit file for tomcat instances.
#
# To create clones of this service:
# 0. systemctl enable tomcat@name.service
# 1. create catalina.base directory structure in
#    /var/lib/tomcats/name
# 2. profit.

[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=simple
EnvironmentFile=/etc/tomcat/tomcat.conf
Environment="NAME=%I"
EnvironmentFile=-/etc/sysconfig/tomcat@%I
ExecStart=/usr/libexec/tomcat/server start
ExecStop=/usr/libexec/tomcat/server stop
SuccessExitStatus=143
User=tomcat

[Install]
WantedBy=multi-user.target