Terraform Series - AWS DynamoDB

 

Amazon DynamoDB is a fully managed proprietary NoSQL database service that supports key–value and document data structures and is offered by Amazon.com as part of the Amazon Web Services portfolio. 

A table is a collection of items, and each item is a collection of attributes.

DynamoDB uses primary keys to uniquely identify each item in a table and secondary indexes to provide more querying flexibility. 

The following are the basic DynamoDB components:

Tables – Similar to other database systems, DynamoDB stores data in tables. A table is a collection of data.

Items – Each table contains zero or more items. An item is a group of attributes that is uniquely identifiable among all of the other items. 

Attributes – Each item is composed of one or more attributes. An attribute is a fundamental data element, something that does not need to be broken down any furthe

People table contains attributes called PersonID, LastName, FirstName.

resource "aws_dynamodb_table" "cars"{

    name = "cars"

    hash_key = "VIN"

    billing_mode = "PAY_PER_REQUEST"

    attribute {

      name = "VIN"

      type = "S"

    }

}

resource "aws_dynamodb_table_item" "car-items"{

    table_name = aws_dynamodb_table.cars.name

    hash_key = aws_dynamodb_table.cars.hash_key

    item = <<ITEM

    {

  "Manufacturer": {"S":"Ford"},

  "Model": {"S": "Focus"},

  "Year": {"N": "2013"},

  "VIN": {"S": "aded12344"}

}

ITEM

}