Anant / example-cassandra-terraform-astra-provider

example-cassandra-terraform-astra-provider

Learn how to manage your DataStax Astra infrastructure with terraform! This tutorial can be done with Gitpod so you don't have to worry about any OS inconsistencies with your local machine! Hit the button below to get started!

1. Generate an Astra Token

Generate an admin level token and copy your token value as we will need it for when we run terraform.

2. When prompted in the terminal, type yes

3. Create a new Astra DB instance

3.1 Copy code into astra.tf

terraform {
    required_providers {
        astra = {
            source = "datastax/astra"
        }
    }
}

variable "token" {
    type = string
    default = "<your-token-here>"
}

provider "astra" {
  // This can also be set via ASTRA_API_TOKEN environment variable.
  token = var.token
}

resource "astra_database" "example" {
  name           = "terraform"
  keyspace       = "test"
  cloud_provider = "gcp"
  regions        = ["us-east1"]
}

3.2 Run terraform init

3.3 Run terraform plan

Paste in token when prompted and visualize the upcoming infrastructure changes.

3.4 Run terraform apply

Paste in token when prompoted. Additionally, type yes when prompted to apply changes. Once the deploy has completed, you can check your Astra dashboard and see the newly created database!

4. Create a new keyspace in newly deployed database

4.1 Add the following in astra.tf to visualize the databases and get id's of active databases

data "astra_databases" "databaselist" {
  status = "ACTIVE"
}

output "existing_dbs" {
  value = [for db in data.astra_databases.databaselist.results : db.id]
}

4.2 Run terraform plan to visualize changes and then terraform apply

4.3 Add the following in astra.tf to create a new keyspace to the new Astra database

resource "astra_keyspace" "databaselist" {
  name        = "example"
  database_id = data.astra_databases.databaselist.results[0].id
}

4.4 Run terraform plan to visualize changes and then terraform apply to create the new keyspace

5. Create a dependency graph

terraform graph | dot -Tsvg > graph.svg

6. Destroy newly created Astra DB instance

terraform destroy