Add Tag Support to API Gateway API Key Resource (#10568)

Output from acceptance testing:

```
--- PASS: TestAccAWSAPIGatewayApiKey_Value (8.40s)
--- PASS: TestAccAWSAPIGatewayApiKey_basic (8.70s)
--- PASS: TestAccAWSAPIGatewayApiKey_Enabled (13.28s)
--- PASS: TestAccAWSAPIGatewayApiKey_Description (13.78s)
--- PASS: TestAccAWSAPIGatewayApiKey_Tags (18.67s)
```

aws/resource_aws_api_gateway_api_key.go

@@ -6,9 +6,11 @@ import (
 	"time"
 
 	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/arn"
 	"github.com/aws/aws-sdk-go/service/apigateway"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/validation"
+	"github.com/terraform-providers/terraform-provider-aws/aws/internal/keyvaluetags"
 )
 
 func resourceAwsApiGatewayApiKey() *schema.Resource {
@@ -77,6 +79,11 @@ func resourceAwsApiGatewayApiKey() *schema.Resource {
 				Sensitive:    true,
 				ValidateFunc: validation.StringLenBetween(30, 128),
 			},
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"tags": tagsSchema(),
 		},
 	}
 }
@@ -90,9 +97,10 @@ func resourceAwsApiGatewayApiKeyCreate(d *schema.ResourceData, meta interface{})
 		Description: aws.String(d.Get("description").(string)),
 		Enabled:     aws.Bool(d.Get("enabled").(bool)),
 		Value:       aws.String(d.Get("value").(string)),
+		Tags:        keyvaluetags.New(d.Get("tags").(map[string]interface{})).IgnoreAws().ApigatewayTags(),
 	})
 	if err != nil {
-		return fmt.Errorf("Error creating API Gateway: %s", err)
+		return fmt.Errorf("Error creating API Gateway API Key: %s", err)
 	}
 
 	d.SetId(aws.StringValue(apiKey.Id))
@@ -118,6 +126,18 @@ func resourceAwsApiGatewayApiKeyRead(d *schema.ResourceData, meta interface{}) e
 		return err
 	}
 
+	if err := d.Set("tags", keyvaluetags.ApigatewayKeyValueTags(apiKey.Tags).IgnoreAws().Map()); err != nil {
+		return fmt.Errorf("error setting tags: %s", err)
+	}
+
+	arn := arn.ARN{
+		Partition: meta.(*AWSClient).partition,
+		Service:   "apigateway",
+		Region:    meta.(*AWSClient).region,
+		Resource:  fmt.Sprintf("/apikeys/%s", d.Id()),
+	}.String()
+	d.Set("arn", arn)
+
 	d.Set("name", apiKey.Name)
 	d.Set("description", apiKey.Description)
 	d.Set("enabled", apiKey.Enabled)
@@ -164,6 +184,13 @@ func resourceAwsApiGatewayApiKeyUpdate(d *schema.ResourceData, meta interface{})
 
 	log.Printf("[DEBUG] Updating API Gateway API Key: %s", d.Id())
 
+	if d.HasChange("tags") {
+		o, n := d.GetChange("tags")
+		if err := keyvaluetags.ApigatewayUpdateTags(conn, d.Get("arn").(string), o, n); err != nil {
+			return fmt.Errorf("error updating tags: %s", err)
+		}
+	}
+
 	_, err := conn.UpdateApiKey(&apigateway.UpdateApiKeyInput{
 		ApiKey:          aws.String(d.Id()),
 		PatchOperations: resourceAwsApiGatewayApiKeyUpdateOperations(d),

aws/resource_aws_api_gateway_api_key_test.go

@@ -2,6 +2,7 @@ package aws
 
 import (
 	"fmt"
+	"regexp"
 	"testing"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -26,6 +27,7 @@ func TestAccAWSAPIGatewayApiKey_basic(t *testing.T) {
 				Config: testAccAWSAPIGatewayApiKeyConfig(rName),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSAPIGatewayApiKeyExists(resourceName, &apiKey1),
+					testAccMatchResourceAttrRegionalARNNoAccount(resourceName, "arn", "apigateway", regexp.MustCompile(`/apikeys/+.`)),
 					resource.TestCheckResourceAttrSet(resourceName, "created_date"),
 					resource.TestCheckResourceAttr(resourceName, "description", "Managed by Terraform"),
 					resource.TestCheckResourceAttr(resourceName, "enabled", "true"),
@@ -43,6 +45,50 @@ func TestAccAWSAPIGatewayApiKey_basic(t *testing.T) {
 	})
 }
 
+func TestAccAWSAPIGatewayApiKey_Tags(t *testing.T) {
+	var apiKey1 apigateway.ApiKey
+	resourceName := "aws_api_gateway_api_key.test"
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckAWSAPIGatewayApiKeyDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccAWSAPIGatewayApiKeyConfigTags1(rName, "key1", "value1"),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSAPIGatewayApiKeyExists(resourceName, &apiKey1),
+					resource.TestCheckResourceAttr(resourceName, "tags.%", "1"),
+					resource.TestCheckResourceAttr(resourceName, "tags.key1", "value1"),
+				),
+			},
+			{
+				Config: testAccAWSAPIGatewayApiKeyConfigTags2(rName, "key1", "value1updated", "key2", "value2"),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSAPIGatewayApiKeyExists(resourceName, &apiKey1),
+					resource.TestCheckResourceAttr(resourceName, "tags.%", "2"),
+					resource.TestCheckResourceAttr(resourceName, "tags.key1", "value1updated"),
+					resource.TestCheckResourceAttr(resourceName, "tags.key2", "value2"),
+				),
+			},
+			{
+				Config: testAccAWSAPIGatewayApiKeyConfigTags1(rName, "key2", "value2"),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSAPIGatewayApiKeyExists(resourceName, &apiKey1),
+					resource.TestCheckResourceAttr(resourceName, "tags.%", "1"),
+					resource.TestCheckResourceAttr(resourceName, "tags.key2", "value2"),
+				),
+			},
+			{
+				ResourceName:      resourceName,
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func TestAccAWSAPIGatewayApiKey_Description(t *testing.T) {
 	var apiKey1, apiKey2 apigateway.ApiKey
 	resourceName := "aws_api_gateway_api_key.test"
@@ -217,6 +263,31 @@ resource "aws_api_gateway_api_key" "test" {
 `, rName)
 }
 
+func testAccAWSAPIGatewayApiKeyConfigTags1(rName, tagKey1, tagValue1 string) string {
+	return fmt.Sprintf(`
+resource "aws_api_gateway_api_key" "test" {
+  name = %[1]q
+
+  tags = {
+	%[2]q = %[3]q
+  }
+}
+`, rName, tagKey1, tagValue1)
+}
+
+func testAccAWSAPIGatewayApiKeyConfigTags2(rName, tagKey1, tagValue1, tagKey2, tagValue2 string) string {
+	return fmt.Sprintf(`
+resource "aws_api_gateway_api_key" "test" {
+  name = %[1]q
+
+  tags = {
+	%[2]q = %[3]q
+	%[4]q = %[5]q
+  }
+}
+`, rName, tagKey1, tagValue1, tagKey2, tagValue2)
+}
+
 func testAccAWSAPIGatewayApiKeyConfigDescription(rName, description string) string {
 	return fmt.Sprintf(`
 resource "aws_api_gateway_api_key" "test" {

website/docs/r/api_gateway_api_key.html.markdown

@@ -27,6 +27,7 @@ The following arguments are supported:
 * `description` - (Optional) The API key description. Defaults to "Managed by Terraform".
 * `enabled` - (Optional) Specifies whether the API key can be used by callers. Defaults to `true`.
 * `value` - (Optional) The value of the API key. If not specified, it will be automatically generated by AWS on creation.
+* `tags` - (Optional) Key-value mapping of resource tags
 
 ## Attribute Reference
 
@@ -36,6 +37,7 @@ In addition to all arguments above, the following attributes are exported:
 * `created_date` - The creation date of the API key
 * `last_updated_date` - The last update date of the API key
 * `value` - The value of the API key
+* `arn` - Amazon Resource Name (ARN)
 
 ## Import