Create AWS DocumentDB Service

aws-documentdb.png

AWS DocumentDB

Amazon DocumentDB Amazon DocumentDB is a NoSQL database provided by AWS, storing data in JSON format, compatible with MongoDB. This is a fully managed service, helping you run critical applications without worrying about infrastructure management, saving time and costs.

Benefits of using DocumentDB:

  • MongoDB compatibility: Can use MongoDB tools and code, easy to migrate data.
  • Good performance, easily scalable: Fast processing, automatically increases capacity when needed.
  • Easy to manage: AWS handles all backups and maintenance, so you can focus on your application.

Pricing of Amazon DocumentDB

The price of Amazon DocumentDB is calculated based on:

  • Instances (On-Demand Instances): Pay by the hour, depending on the instance type you use. Read/write data (Database I/O): Charged based on the number of accesses, with a rate per million accesses.
  • Storage (Database Storage): Pay per GB per month.
  • Backup (Backup Storage): Additional charge if backup storage exceeds the main storage, also per GB/month.

Pricing calculation for Amazon DocumentDB:

  • Standard (Pay-per-I/O-used):
    • Suitable for applications with low to moderate data access (low - medium I/O).
    • Charges based on: Instances, Read/Write (I/O), Storage, Backup.
    • Ideal if I/O costs are below 25% of the total cost.
  • I/O-Optimized (I/O fees included in instance price)
    • Suitable for applications with high data access (high I/O).
    • Charges only for: Instances, Storage, Backup – no separate I/O fees.
    • Easy to predict costs, suitable if I/O accounts for over 25% of the total cost.

Which configuration should this workshop choose?

  • We will choose Amazon DocumentDB Standard to save costs, because:
    • Low queries at the start, helping to save costs.
    • Only pay for the actual read/write (I/O) usage.
    • Easy to upgrade to I/O-Optimized if queries increase later.

Create a DB Instance on AWS

  1. Log in to the AWS Management Console and open Amazon DocumentDB

  2. Create a DocumentDB Cluster Cluster-interface.png

  3. In Create Amazon DocumentDB cluster, fill in the following information:

    • Cluster type: Instance-based cluster
    • Cluster identifier: docdb-blog-workshop
    • Engine version: Select the latest version
    • Cluster storage configuration: Amazon DocumentDB Standard
    • Instance class: db.t3.medium
    • Number of instances: 2 (1 Primary + 1 Replica)
    • Connectivity: Don’t connect to an EC2 compute resource
    • Username: user123
    • Select Self managed
    • Password: user1234
    • Confirm Password: user1234
    • Subnet group: Select the subnet group created in 3.3
    • VPC security groups: private-sg-documentdb (VPC)
    • Deletion protection: Check Enable deletion protection
    • Review the settings and click Create cluster create-1.png create-2.png create-1.png create-2.png create-1.png create-2.png
    • Wait a few minutes, and it will switch to Cluster creation successful create-2.png

  4. Check the connection from EC2 to DocumentDB

  • Go to the newly created cluster, select the Configuration tab, and copy the Cluster endpoint create-2.png

  • Go to EC2, click the Connect button, and click Connect in the EC2 Instance Connect tab

    $ sudo apt-get install -y netcat
$ nc -zv docdb-blog-workshopv1.cluster-cl8uqi4yidxz.ap-southeast-1.docdb.amazonaws.com 27017

    success.png

Completed!