The build script of .rpm package for graphhopper application: https://github.com/graphhopper/graphhopper

build_graphhopper.sh

#!/bin/bash

rm -f *.rpm
rm -rf graphhopper

# clone and build the ap
git clone git://github.com/graphhopper/graphhopper.git
cd graphhopper

mvn --projects web -DskipTests=true install assembly:single

RELEASE=`git rev-list --all | wc -l`
VERSION=$(grep  "<name>" -A 1 pom.xml | grep version | cut -d'>' -f2 | cut -d'<' -f1)   #that command is overtaken from graphhopper.sh

# remove unnecessary stuff
rm -rf .git

# prepare before-install script which will create graphhopper user
cd ..

cat << EOF > before_install.sh
#!/bin/sh
if ! id -u "graphhopper" >/dev/null 2>&1; then
  useradd -r -d /dev/null -s /sbin/nologin graphhopper
fi
EOF

cat << EOF > after_install.sh
#!/bin/sh
/bin/systemctl daemon-reload
/bin/chown -R graphhopper /opt/graphhopper
EOF

cat << EOF > graphhopper.conf
# Configuration for graphhopper

JAR_FILE="./web/target/graphhopper-web-${VERSION}-with-dep.jar"
JAVA_OPTS="jetty.port=8989 jetty.host=0.0.0.0 jetty.resourcebase=./web/src/main/webapp config=config-example.properties"
OSMREADER="belgium-latest.osm.pbf"
EOF

cat << EOF > graphhopper.service
; Graphhopper systemd service unit file

[Unit]
Description=Graphhopper
Requires=network.target
After=syslog.target
After=network.target

[Service]
Type=simple
WorkingDirectory=/opt/graphhopper
User=graphhopper
EnvironmentFile=-/etc/graphhopper.conf
ExecStart=/bin/java -server -jar \$JAR_FILE \$JAVA_OPTS osmreader.osm=\${OSMREADER}
ExecStop=/bin/kill -TERM \$MAINPID
TimeoutSec=300

[Install]
WantedBy=multi-user.target
EOF

# build the .rpm
echo 'buidling .rpm'

fpm -s dir -t rpm -d java \
  --name "graphhopper" \
  --version "0.6" \
  --iteration "${RELEASE}" \
  --architecture noarch \
  --prefix / \
  --vendor 'Inuits' \
  --description 'Graphhopper app' \
  --maintainer 'Jenkins' \
  --epoch '1' \
  --before-install before_install.sh \
  --after-install after_install.sh \
  graphhopper=/opt graphhopper.conf=/etc/graphhopper.conf graphhopper.service=/etc/systemd/system/graphhopper.service

rpm -qlp *.rpm