[Unit]
Description=High-performance, schema-free document-oriented database
After=syslog.target network.target
 
[Service]
Type=forking
User=mongodb
Group=mongodb
PIDFile=/var/run/mongodb/mongod.pid
EnvironmentFile=/etc/sysconfig/mongodb 
ExecStart=/usr/bin/mongod -f /etc/mongod.conf
 
[Install]
WantedBy=multi-user.target