fix bug in Astra CDC config (#429)

Fix mismatch in the name of the new pulsar_cluster parameter in the CDC
resource.
Includes minor doc updates.

Author: pgier

README.md

@@ -1,6 +1,8 @@
 # Terraform Provider for Astra
 
 [Astra](https://astra.datastax.com/) is the DataStax (serverless) service platform for Apache Cassandra and Apache Pulsar.
+[Complete API documentation](https://registry.terraform.io/providers/datastax/astra/latest/docs) for this terraform provider is
+available in the Terrfarm provider registry.
 
 ## Prerequisites
 
@@ -16,8 +18,6 @@ You will need [Terraform](https://www.terraform.io/) version 1.0 or higher.
 
 ## Getting Started
 
-Reference documentation can be found in the [terraform registry](https://registry.terraform.io/providers/datastax/astra/latest/docs)
-
 ### Create a new Astra database using terraform
 
 1. Create a file called `main.tf` in a new directory:

docs/resources/cdc.md

@@ -99,7 +99,7 @@ resource "astra_cdc" "db_cdc" {
 
 ### Optional
 
-- `pulsar_cluster` (String) Pulsar cluster name
+- `pulsar_cluster` (String) Name of the pulsar cluster to connect CDC.  If this is not set, Terraform will try to determine the pulsar cluster name based on the database cloud provider and region
 
 ### Read-Only
 

internal/provider/resource_cdc.go

@@ -66,10 +66,11 @@ func resourceCDC() *schema.Resource {
 				ForceNew:    true,
 			},
 			"pulsar_cluster": {
-				Description: "Pulsar cluster name",
-				Type:        schema.TypeString,
-				Optional:    true,
-				ForceNew:    true,
+				Description: "Name of the pulsar cluster to connect CDC.  If this is not set, Terraform will try to " +
+					"determine the pulsar cluster name based on the database cloud provider and region",
+				Type:     schema.TypeString,
+				Optional: true,
+				ForceNew: true,
 			},
 			"tenant_name": {
 				Description: "Streaming tenant name",
@@ -102,7 +103,7 @@ func resourceCDCDelete(ctx context.Context, resourceData *schema.ResourceData, m
 	token := meta.(astraClients).token
 
 	id := resourceData.Id()
-	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster_name").(string)
+	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster").(string)
 
 	databaseId, keyspace, table, tenantName, err := parseCDCID(id)
 	if err != nil {
@@ -197,7 +198,7 @@ func resourceCDCRead(ctx context.Context, resourceData *schema.ResourceData, met
 	token := meta.(astraClients).token
 
 	id := resourceData.Id()
-	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster_name").(string)
+	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster").(string)
 
 	databaseId, keyspace, table, tenantName, err := parseCDCID(id)
 	if err != nil {
@@ -299,7 +300,7 @@ func resourceCDCCreate(ctx context.Context, resourceData *schema.ResourceData, m
 	databaseId := resourceData.Get("database_id").(string)
 	databaseName := resourceData.Get("database_name").(string)
 	topicPartitions := resourceData.Get("topic_partitions").(int)
-	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster_name").(string)
+	pulsarClusterFromConfig := resourceData.Get("pulsar_cluster").(string)
 	tenantName := resourceData.Get("tenant_name").(string)
 
 	orgBody, _ := client.GetCurrentOrganization(ctx)