Atlas was introduced by MongoDB as their SAAS offering for MongoDB. Atlas allows administrators, developers, and managers to deploy a complete MongoDB cluster in a matter of minutes. Some basic requirements for using Atlas include:
- Atlas requires SSL
- Set up AWS VPC peering
- VPN and Security Setup
- Use Amazon DNS (when on AWS)
The preparation work that must be done includes:
- Picking a network CIDR that won’t collide with your networks
- Need to use MongoDB 3.x engine using WiredTiger
- Test on replicas using testing/staging environments
Atlas supports the live migration of data from an EC2 instance. The Mongo Migration Tool or MongoMirror can be used to migrate the data.
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