Managing AWS DynamoDB using Terraform

Provisioning a new DynamoDB table

resource "aws_dynamodb_table" "mobile_phones" {

    name = "mobile_phones"

    hash_key = "IMEI"

    billing_mode = "PAY_PER_REQUEST"

    attribute = {

        name = "IMEI"

        type = "N"

    }

}

hash_key is table's primary key.

type = "N" means that data type is Number; "S" would mean that data type is String.

 

If we want to define more attributes, we'll add more attribute blocks e.g.

 

attribute {
    name = "Model"
    type = "S"

}

Adding new items to table

Item value needs to be in JSON format and we need to specify data type (S for string and N for number) and value.

resource "aws_dynamodb_table_item" {

    table_name = aws_dynamodb_table. mobile_phones.name

    hash_key = aws_dynamodb_table. mobile_phones.hash_key

    item = <<EOF

    {

        "Manufacturer": {"S" : "Samsung"},

        "Model": {"S": "S80"},

        "Year": {"N": 2017},

        "IMEI": {"N": 45243582345234632048432},

    }

    EOF

}

terraform apply inserts this item into the table. 

This approach is not used for inserting and managing large amounts of data.