security:
 authorization: enabled
 keyFile: /mnt/data/mdb.keyfile
 clusterAuthMode: keyFile

net:
 bindIp: 0.0.0.0
 maxIncomingConnections: 1000000
 port: 28017
 http:
   enabled: false

storage:
 directoryPerDB: true
 dbPath: /mnt/data/db
 journal:
   enabled: true
 engine: wiredTiger

systemLog:
 destination: file
 logAppend: true
 path: /var/log/mongodb/mongod.log
 logRotate: reopen
processManagement:
 fork:  false

replication:
 replSetName: p-prod
 secondaryIndexPrefetch: all
 oplogSizeMB: 2048