feat(cosmosdb): Adds connection_strings attribute to cosmos_db_account

Adds connection_strings attribute to cosmos_db_account with documentation.
Also adds in some missing error handling in the same function I modified
for the feature.

azurerm/resource_arm_cosmos_db_account.go

@@ -227,6 +227,14 @@ func resourceArmCosmosDBAccount() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
+
+			"connection_strings": {
+				Type:     schema.TypeList,
+				Computed: true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
 		},
 	}
 }
@@ -490,19 +498,31 @@ func resourceArmCosmosDBAccountRead(d *schema.ResourceData, meta interface{}) er
 
 	keys, err := client.ListKeys(ctx, resourceGroup, name)
 	if err != nil {
-		log.Printf("[ERROR] Unable to List Write keys for CosmosDB Account %s: %s", name, err)
-	} else {
-		d.Set("primary_master_key", keys.PrimaryMasterKey)
-		d.Set("secondary_master_key", keys.SecondaryMasterKey)
+		return fmt.Errorf("[ERROR] Unable to List Write keys for CosmosDB Account %s: %s", name, err)
 	}
+	d.Set("primary_master_key", keys.PrimaryMasterKey)
+	d.Set("secondary_master_key", keys.SecondaryMasterKey)
 
 	readonlyKeys, err := client.ListReadOnlyKeys(ctx, resourceGroup, name)
 	if err != nil {
-		log.Printf("[ERROR] Unable to List read-only keys for CosmosDB Account %s: %s", name, err)
-	} else {
-		d.Set("primary_readonly_master_key", readonlyKeys.PrimaryReadonlyMasterKey)
-		d.Set("secondary_readonly_master_key", readonlyKeys.SecondaryReadonlyMasterKey)
+		return fmt.Errorf("[ERROR] Unable to List read-only keys for CosmosDB Account %s: %s", name, err)
+	}
+	d.Set("primary_readonly_master_key", readonlyKeys.PrimaryReadonlyMasterKey)
+	d.Set("secondary_readonly_master_key", readonlyKeys.SecondaryReadonlyMasterKey)
+
+	connStringResp, err := client.ListConnectionStrings(ctx, resourceGroup, name)
+	if err != nil {
+		return fmt.Errorf("[ERROR] Unable to List connection strings for CosmosDB Account %s: %s", name, err)
+	}
+	var connStrings []string
+	if connStringResp.ConnectionStrings != nil {
+		connStrings = make([]string, len(*connStringResp.ConnectionStrings))
+		for i, v := range *connStringResp.ConnectionStrings {
+			connStrings[i] = *v.ConnectionString
+		}
+
 	}
+	d.Set("connection_strings", connStrings)
 
 	return nil
 }

azurerm/resource_arm_cosmos_db_account_test.go

@@ -215,6 +215,7 @@ func TestAccAzureRMCosmosDBAccount_mongoDB(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					checkAccAzureRMCosmosDBAccount_basic(resourceName, testLocation(), string(documentdb.BoundedStaleness), 1),
 					resource.TestCheckResourceAttr(resourceName, "kind", "MongoDB"),
+					resource.TestCheckResourceAttr(resourceName, "connection_strings.#", "1"),
 				),
 			},
 		},

website/docs/r/cosmosdb_account.html.markdown

@@ -111,6 +111,9 @@ The following attributes are exported:
 
 * `secondary_readonly_master_key` - The Secondary read-only master key for the CosmosDB Account.
 
+* `connection_strings` - A list of connection strings available for this CosmosDB 
+  account. If the kind is `GlobalDocumentDB`, this will be empty.
+
 
 ## Import