provider/aws: Remove `aws_codedeploy_deployment_group` from state on 404

Fixes #4802

The manual removal will now force Terraform to remove the resource from
state and then report it needs recreated

builtin/providers/aws/resource_aws_codedeploy_deployment_group.go

@@ -238,6 +238,12 @@ func resourceAwsCodeDeployDeploymentGroupRead(d *schema.ResourceData, meta inter
 		DeploymentGroupName: aws.String(d.Get("deployment_group_name").(string)),
 	})
 	if err != nil {
+		if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "DeploymentGroupDoesNotExistException" {
+			log.Printf("[INFO] CodeDeployment DeploymentGroup %s not found", d.Get("deployment_group_name").(string))
+			d.SetId("")
+			return nil
+		}
+
 		return err
 	}
 

builtin/providers/aws/resource_aws_codedeploy_deployment_group_test.go

@@ -6,6 +6,7 @@ import (
 	"regexp"
 	"sort"
 	"testing"
+	"time"
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
@@ -107,6 +108,27 @@ func TestAccAWSCodeDeployDeploymentGroup_onPremiseTag(t *testing.T) {
 	})
 }
 
+func TestAccAWSCodeDeployDeploymentGroup_disappears(t *testing.T) {
+	var group codedeploy.DeploymentGroupInfo
+	rName := acctest.RandString(5)
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckAWSCodeDeployDeploymentGroupDestroy,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccAWSCodeDeployDeploymentGroup(rName),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSCodeDeployDeploymentGroupExists("aws_codedeploy_deployment_group.foo", &group),
+					testAccAWSCodeDeployDeploymentGroupDisappears(&group),
+				),
+				ExpectNonEmptyPlan: true,
+			},
+		},
+	})
+}
+
 func TestAccAWSCodeDeployDeploymentGroup_triggerConfiguration_basic(t *testing.T) {
 	var group codedeploy.DeploymentGroupInfo
 
@@ -407,6 +429,36 @@ func testAccCheckAWSCodeDeployDeploymentGroupDestroy(s *terraform.State) error {
 	return nil
 }
 
+func testAccAWSCodeDeployDeploymentGroupDisappears(group *codedeploy.DeploymentGroupInfo) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		conn := testAccProvider.Meta().(*AWSClient).codedeployconn
+		opts := &codedeploy.DeleteDeploymentGroupInput{
+			ApplicationName:     group.ApplicationName,
+			DeploymentGroupName: group.DeploymentGroupName,
+		}
+		if _, err := conn.DeleteDeploymentGroup(opts); err != nil {
+			return err
+		}
+		return resource.Retry(40*time.Minute, func() *resource.RetryError {
+			opts := &codedeploy.GetDeploymentGroupInput{
+				ApplicationName:     group.ApplicationName,
+				DeploymentGroupName: group.DeploymentGroupName,
+			}
+			_, err := conn.GetDeploymentGroup(opts)
+			if err != nil {
+				codedeploy, ok := err.(awserr.Error)
+				if ok && codedeploy.Code() == "DeploymentGroupDoesNotExistException" {
+					return nil
+				}
+				return resource.NonRetryableError(
+					fmt.Errorf("Error retrieving CodeDeploy Deployment Group: %s", err))
+			}
+			return resource.RetryableError(fmt.Errorf(
+				"Waiting for CodeDeploy Deployment Group: %v", group.DeploymentGroupName))
+		})
+	}
+}
+
 func testAccCheckAWSCodeDeployDeploymentGroupExists(name string, group *codedeploy.DeploymentGroupInfo) resource.TestCheckFunc {
 	return func(s *terraform.State) error {
 		rs, ok := s.RootModule().Resources[name]