Merge pull request #6856 from saravanan30erd/issue-6384

Data source for aws_service_discovery_dns_namespace

.changelog/6856.txt

@@ -0,0 +1,3 @@
+```release-note:new-data-source
+aws_service_discovery_dns_namespace
+```

aws/data_source_aws_service_discovery_dns_namespace.go

@@ -0,0 +1,123 @@
+package aws
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/servicediscovery"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
+)
+
+func dataSourceServiceDiscoveryDnsNamespace() *schema.Resource {
+	return &schema.Resource{
+		ReadWithoutTimeout: dataSourceServiceDiscoveryDnsNamespaceRead,
+
+		Schema: map[string]*schema.Schema{
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"description": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"hosted_zone": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"type": {
+				Type:     schema.TypeString,
+				Required: true,
+				ValidateFunc: validation.StringInSlice([]string{
+					servicediscovery.NamespaceTypeDnsPublic,
+					servicediscovery.NamespaceTypeDnsPrivate,
+				}, false),
+			},
+		},
+	}
+}
+
+func dataSourceServiceDiscoveryDnsNamespaceRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	conn := meta.(*AWSClient).sdconn
+
+	name := d.Get("name").(string)
+
+	input := &servicediscovery.ListNamespacesInput{}
+
+	var filters []*servicediscovery.NamespaceFilter
+
+	filter := &servicediscovery.NamespaceFilter{
+		Condition: aws.String(servicediscovery.FilterConditionEq),
+		Name:      aws.String(servicediscovery.NamespaceFilterNameType),
+		Values:    []*string{aws.String(d.Get("type").(string))},
+	}
+
+	filters = append(filters, filter)
+
+	input.Filters = filters
+
+	namespaceIds := make([]string, 0)
+
+	err := conn.ListNamespacesPagesWithContext(ctx, input, func(page *servicediscovery.ListNamespacesOutput, lastPage bool) bool {
+		if page == nil {
+			return !lastPage
+		}
+
+		for _, namespace := range page.Namespaces {
+			if namespace == nil {
+				continue
+			}
+
+			if name == aws.StringValue(namespace.Name) {
+				namespaceIds = append(namespaceIds, aws.StringValue(namespace.Id))
+			}
+		}
+		return !lastPage
+	})
+
+	if err != nil {
+		return diag.FromErr(fmt.Errorf("error listing Service Discovery DNS Namespaces: %w", err))
+	}
+
+	if len(namespaceIds) == 0 {
+		return diag.Errorf("no matching Service Discovery DNS Namespace found")
+	}
+
+	if len(namespaceIds) != 1 {
+		return diag.FromErr(fmt.Errorf("search returned %d Service Discovery DNS Namespaces, please revise so only one is returned", len(namespaceIds)))
+	}
+
+	d.SetId(namespaceIds[0])
+
+	req := &servicediscovery.GetNamespaceInput{
+		Id: aws.String(d.Id()),
+	}
+
+	output, err := conn.GetNamespaceWithContext(ctx, req)
+
+	if err != nil {
+		return diag.FromErr(fmt.Errorf("error reading Service Discovery DNS Namespace (%s): %w", d.Id(), err))
+	}
+
+	if output == nil || output.Namespace == nil {
+		return diag.FromErr(fmt.Errorf("error reading Service Discovery DNS Namespace (%s): empty output", d.Id()))
+	}
+
+	namespace := output.Namespace
+
+	d.Set("name", namespace.Name)
+	d.Set("description", namespace.Description)
+	d.Set("arn", namespace.Arn)
+	if namespace.Properties != nil && namespace.Properties.DnsProperties != nil {
+		d.Set("hosted_zone", namespace.Properties.DnsProperties.HostedZoneId)
+	}
+
+	return nil
+}

aws/data_source_aws_service_discovery_dns_namespace_test.go

@@ -0,0 +1,87 @@
+package aws
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/service/servicediscovery"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/acctest"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccAWSServiceDiscoveryDnsNamespaceDataSource_private(t *testing.T) {
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+	dataSourceName := "data.aws_service_discovery_dns_namespace.test"
+	resourceName := "aws_service_discovery_private_dns_namespace.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:   func() { testAccPreCheck(t); testAccPreCheckAWSServiceDiscovery(t) },
+		ErrorCheck: testAccErrorCheck(t, servicediscovery.EndpointsID),
+		Providers:  testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccCheckAwsServiceDiscoveryPrivateDnsNamespaceConfig(rName),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					resource.TestCheckResourceAttrPair(dataSourceName, "arn", resourceName, "arn"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "name", resourceName, "name"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "description", resourceName, "description"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "hosted_zone", resourceName, "hosted_zone"),
+				),
+			},
+		},
+	})
+}
+
+func TestAccAWSServiceDiscoveryDnsNamespaceDataSource_public(t *testing.T) {
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+	dataSourceName := "data.aws_service_discovery_dns_namespace.test"
+	resourceName := "aws_service_discovery_public_dns_namespace.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:   func() { testAccPreCheck(t); testAccPreCheckAWSServiceDiscovery(t) },
+		ErrorCheck: testAccErrorCheck(t, servicediscovery.EndpointsID),
+		Providers:  testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccCheckAwsServiceDiscoveryPublicDnsNamespaceConfig(rName),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					resource.TestCheckResourceAttrPair(dataSourceName, "arn", resourceName, "arn"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "name", resourceName, "name"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "description", resourceName, "description"),
+					resource.TestCheckResourceAttrPair(dataSourceName, "hosted_zone", resourceName, "hosted_zone"),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckAwsServiceDiscoveryPrivateDnsNamespaceConfig(rName string) string {
+	return fmt.Sprintf(`
+resource "aws_vpc" "test" {
+  cidr_block = "10.0.0.0/16"
+}
+
+resource "aws_service_discovery_private_dns_namespace" "test" {
+  name = "%[1]s.tf"
+  vpc  = aws_vpc.test.id
+}
+
+data "aws_service_discovery_dns_namespace" "test" {
+  name = aws_service_discovery_private_dns_namespace.test.name
+  type = "DNS_PRIVATE"
+}
+`, rName)
+}
+
+func testAccCheckAwsServiceDiscoveryPublicDnsNamespaceConfig(rName string) string {
+	return fmt.Sprintf(`
+resource "aws_service_discovery_public_dns_namespace" "test" {
+  name = "%[1]s.tf"
+}
+
+data "aws_service_discovery_dns_namespace" "test" {
+  name = aws_service_discovery_public_dns_namespace.test.name
+  type = "DNS_PUBLIC"
+}
+`, rName)
+}

aws/provider.go

@@ -387,6 +387,7 @@ func Provider() *schema.Provider {
 			"aws_secretsmanager_secret_version":              dataSourceAwsSecretsManagerSecretVersion(),
 			"aws_servicequotas_service":                      dataSourceAwsServiceQuotasService(),
 			"aws_servicequotas_service_quota":                dataSourceAwsServiceQuotasServiceQuota(),
+			"aws_service_discovery_dns_namespace":            dataSourceServiceDiscoveryDnsNamespace(),
 			"aws_sfn_activity":                               dataSourceAwsSfnActivity(),
 			"aws_sfn_state_machine":                          dataSourceAwsSfnStateMachine(),
 			"aws_signer_signing_job":                         dataSourceAwsSignerSigningJob(),

website/docs/d/service_discovery_dns_namespace.html.markdown

@@ -0,0 +1,32 @@
+---
+subcategory: "Service Discovery"
+layout: "aws"
+page_title: "AWS: aws_service_discovery_dns_namespace"
+description: |-
+  Retrieves information about a Service Discovery private or public DNS namespace.
+---
+
+# Data Source: aws_service_discovery_dns_namespace
+
+Retrieves information about a Service Discovery private or public DNS namespace.
+
+## Example Usage
+
+```hcl
+data "aws_service_discovery_dns_namespace" "test" {
+  name = "example.terraform.local"
+  type = "DNS_PRIVATE"
+}
+```
+
+## Argument Reference
+
+* `name` - (Required) The name of the namespace.
+* `type` - (Required) The type of the namespace. Allowed values are `DNS_PUBLIC` or `DNS_PRIVATE`.
+
+## Attributes Reference
+
+* `arn` - The Amazon Resource Name (ARN) of the namespace.
+* `description` - A description of the namespace.
+* `id` - The namespace ID.
+* `hosted_zone` - The ID for the hosted zone that Amazon Route 53 creates when you create a namespace.