# storage-mongo-replica
A replica set in MongoDB is a group of mongod processes that maintain the same data set. Replica sets provide redundancy and high availability, and are the basis for all production deployments.
##Replication in MongoDB
A replica set is a group of mongod instances that maintain the same data set. A replica set contains several data bearing nodes and optionally one arbiter node.
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More here:
https://docs.mongodb.com/manual/replication/
## Quickstart
This is a quickstart guide of howto use this *LabInstance storage-mongo-replica*
### HowTo use it
### Default Configuration
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- Mongo Port: 27017
- Mongo Root Username: swarmlab
- Mongo Root Password: swarmlab
- Mongo Database: app_swarmlab
- Mongo Database Usename: app_swarmlab
- Mongo Database Password: app_swarmlab
- Mongo ReplicaSet: rs0
### Test it!
>
> MONGO_INITDB_ROOT_USERNAME=swarmlab
> MONGO_INITDB_ROOT_PASSWORD=swarmlab
> MONGO_INITDB_DATABASE=app_swarmlab
> MONGO_INITDB_USERNAME=app_swarmlab
> MONGO_INITDB_PASSWORD=app_swarmlab
> MONGO_REPLICA_SET_NAME=rs0
>
> mongo "mongodb://localhost:30001,localhost:30002,localhost:30003/$MONGO_INITDB_DATABASE" -u $MONGO_INITDB_USERNAME
> mongo "mongodb://localhost:30001,localhost:30002,localhost:30003/app_swarmlab" -u app_swarmlab
>
