linagora-rse/doc/mongodb.md

Linagora RSE

# MongoDB

Mongodb is configured is the `config/db.json` file with:

- The key `connectionOptions` is used to give the `option` parameter of `mongoose.connect`.
- The key `connectionString` is the first parameter of `mongoose.connect`.

## Single instance setup

ConnexionString syntax :

       mongodb://[username:password@]host[:port][/database]

ConnexionString example :

       mongodb://myVM1/test

## Replica set setup

ConnexionString syntax :

       mongodb://[username:password@]host1[:port1][/database],[,host2[:port2][/database],...[,hostN[:portN][/database]]][?replicaSet=replicaName]

ConnexionString example :

       mongodb://myVM1/test,myVM2:27018/test,myVM3:27019/test?replicaSet=rs0

## Sharding setup (single mongos)

ConnexionString syntax :

       mongodb://[username:password@]host[:port][/database]

ConnexionString example :

       mongodb://myVM1/test


## Sharding setup (multiple mongos)

ConnexionString syntax :

       mongodb://[username:password@]host1[:port1][/database],[,host2[:port2][/database],...[,hostN[:portN][/database]]]

ConnexionString example :

       mongodb://myVM1/test,myVM2:27018/test

With option `mongos` to `true`. (You must add `"mongos":true` as a parameter of `connectionOptions`)