porting jsvc startup script from init.d to systemd tomcat.service, resolved

[Lyallex]

I thought you might be interested in the resolution to this.

It turns out that we needed to reproduce the environment in tomcat.service

For some reason

ExecStart=/etc/rc.d/init.d/tomcat7 doesn't work
(file shown at the end of this message)

Instead, in  /etc/systemd/system/tomcat.service
we have had to reproduce the environment in longhand to get it to work.
It appears that systemd doesn't expand variables so I really need to
investigate the systemd Environment thing a bit more.
Anyway, when I shutdown -r now the server comes back up and tomcat is
running at the unprivileged tomcat user on port 80 so that's a result

============== /etc/systemd/system/tomcat.service ============
[Unit]
Description=Apache Tomcat Web Application Container
After=network.target

[Service]
Type=forking
User=root

ExecStart=/opt/apache-tomcat-7.0.42/bin/jsvc \
-user tomcat \
-home /opt/jdk1.7.0_45 \
-Dcatalina.home=/opt/apache-tomcat-7.0.42 \
-Dcatalina.base=/opt/apache-tomcat-7.0.42 \
-Djava.io.tmpdir=/var/tmp \
-Djava.awt.headless=true \
-Xms512m \
-Xmx1024m \
-outfile /opt/apache-tomcat-7.0.42/logs/catalina.out \
-errfile /opt/apache-tomcat-7.0.42/logs/catalina.err \
-pidfile /var/run/tc7/jsvc.pid \
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
-Djava.util.logging.config.file=/opt/apache-tomcat-7.0.42/conf/logging.properties
\
-cp 
/opt/apache-tomcat-7.0.42/bin/bootstrap.jar:/opt/apache-tomcat-7.0.42/bin/commons-daemon.jar:/opt/jdk1.7.0_45/lib/tools.jar:/opt/apache-tomcat-7.0.42/bin/tomcat-juli.jar
\
org.apache.catalina.startup.Bootstrap

ExecStop=/bin/kill -9 /var/run/tc7/jsvc.pid
ExecStopPost=/bin/rm -f /var/tc7lock/subsys/tomcat /var/run/tc7/jsvc.pid

[Install]
WantedBy=multi-user.target


Oh happy day
Thanks again to all responders

Lyallex

========= /etc/rc.d/init.d/tomcat7  =========

JAVA_HOME=/opt/jdk1.7.0_45
CATALINA_HOME=/opt/apache-tomcat-7.0.42
export JAVA_HOME CATALINA_HOME
CLASSPATH=$CATALINA_HOME/bin/bootstrap.jar:$CATALINA_HOME/bin/commons-daemon.jar:$JAVA_HOME/lib/tools.jar:$CATALINA_HOME/bin/tomcat-juli.jar
TOMCAT_USER=tomcat
TMPDIR=/var/tmp
PIDFILE=/var/run/tc7/jsvc.pid


RC=0

case "$1" in

  start)

   $CATALINA_HOME/bin/jsvc -user $TOMCAT_USER -home $JAVA_HOME
-Dcatalina.home=/opt/apache-tomcat-7.0.42
-Dcatalina.base=$CATALINA_HOME -Djava.io.tmpdir=$TMPDIR
-Djava.awt.headless=true \
     -Xms512m \
     -Xmx1024m \
     -outfile $CATALINA_HOME/logs/catalina.out \
     -errfile $CATALINA_HOME/logs/catalina.err \
     -pidfile '/var/run/tc7/jsvc.pid' \
     -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
     -Djava.util.logging.config.file=$CATALINA_HOME/conf/logging.properties \
     -cp $CLASSPATH  \
     org.apache.catalina.startup.Bootstrap

    RC=$?

    [ $RC = 0 ] && touch /var/tc7lock/subsys/tomcat
    echo "starting tomcat7 on darkstar with:"
    echo "JAVA_HOME=$JAVA_HOME"
    echo "CATALINA_HOME=$CATALINA_HOME"
    echo "CLASSPATH=$CLASSPATH"
    echo "tomcat started"
    ;;

  stop)

    PID=`cat /var/run/tc7/jsvc.pid`
    kill $PID

   RC=$?

    [ $RC = 0 ] && rm -f /var/tc7lock/subsys/tomcat /var/run/tc7/jsvc.pid
    echo "stopping tomcat7 on darkstar with:"
    echo "JAVA_HOME=$JAVA_HOME"
    echo "CATALINA_HOME=$CATALINA_HOME"
    echo "CLASSPATH=$CLASSPATH"

    echo "tomcat stopped"
    ;;

  *)
        echo "Usage: $0 {start|stop}"
        exit 1
esac
exit $RC

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