Running a nodejs expressjs application on linux with systemd

systemd_nodejs_express_app_example.txt

# place file in following location
/etc/systemd/system/<application name>.service

[Unit]
Description=<application Name>
After=mongodb.service      # Example that Requires the mongod service to run first

[Service]
# make sure to run the following as a regular user so node is found after each node upgrade
# n=$(which node);n=${n%/bin/node}; chmod -R 755 $n/bin/*; sudo cp -r $n/{bin,lib,share} /usr/local

ExecStart=/usr/local/bin/node /opt/<application folder name>/bin/www
WorkingDirectory=/opt/<application folder name>
Restart=always
SyslogIdentifier=<application name log identifier>
#User=<optional user>

[Install]
WantedBy=multi-user.target