New Resource: aws_emr_managed_scaling_policy (#13965)

Output from acceptance testing:

```
--- PASS: TestAccAwsEmrManagedScalingPolicy_ComputeLimits_MaximumOndemandCapacityUnits (469.63s)
--- PASS: TestAccAwsEmrManagedScalingPolicy_basic (475.17s)
--- PASS: TestAccAwsEmrManagedScalingPolicy_ComputeLimits_MaximumCoreCapacityUnits (483.48s)
--- PASS: TestAccAwsEmrManagedScalingPolicy_disappears (493.32s)
```

Author: c4po

aws/provider.go

@@ -601,6 +601,7 @@ func Provider() *schema.Provider {
 			"aws_elb_attachment":                                      resourceAwsElbAttachment(),
 			"aws_emr_cluster":                                         resourceAwsEMRCluster(),
 			"aws_emr_instance_group":                                  resourceAwsEMRInstanceGroup(),
+			"aws_emr_managed_scaling_policy":                          resourceAwsEMRManagedScalingPolicy(),
 			"aws_emr_security_configuration":                          resourceAwsEMRSecurityConfiguration(),
 			"aws_flow_log":                                            resourceAwsFlowLog(),
 			"aws_fsx_lustre_file_system":                              resourceAwsFsxLustreFileSystem(),

aws/resource_aws_emr_managed_scaling_policy.go

@@ -0,0 +1,143 @@
+package aws
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/emr"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
+	"log"
+)
+
+func resourceAwsEMRManagedScalingPolicy() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceAwsEMRManagedScalingPolicyCreate,
+		Read:   resourceAwsEMRManagedScalingPolicyRead,
+		Delete: resourceAwsEMRManagedScalingPolicyDelete,
+		Importer: &schema.ResourceImporter{
+			State: schema.ImportStatePassthrough,
+		},
+
+		Schema: map[string]*schema.Schema{
+			"cluster_id": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"compute_limits": {
+				Type:     schema.TypeSet,
+				Required: true,
+				ForceNew: true,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"unit_type": {
+							Type:         schema.TypeString,
+							Required:     true,
+							ForceNew:     true,
+							ValidateFunc: validation.StringInSlice(emr.ComputeLimitsUnitType_Values(), false),
+						},
+						"minimum_capacity_units": {
+							Type:     schema.TypeInt,
+							Required: true,
+							ForceNew: true,
+						},
+						"maximum_capacity_units": {
+							Type:     schema.TypeInt,
+							Required: true,
+							ForceNew: true,
+						},
+						"maximum_core_capacity_units": {
+							Type:     schema.TypeInt,
+							Optional: true,
+							ForceNew: true,
+						},
+						"maximum_ondemand_capacity_units": {
+							Type:     schema.TypeInt,
+							Optional: true,
+							ForceNew: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func resourceAwsEMRManagedScalingPolicyCreate(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).emrconn
+
+	if l := d.Get("compute_limits").(*schema.Set).List(); len(l) > 0 && l[0] != nil {
+		cl := l[0].(map[string]interface{})
+		computeLimits := &emr.ComputeLimits{
+			UnitType:             aws.String(cl["unit_type"].(string)),
+			MinimumCapacityUnits: aws.Int64(int64(cl["minimum_capacity_units"].(int))),
+			MaximumCapacityUnits: aws.Int64(int64(cl["maximum_capacity_units"].(int))),
+		}
+		if v, ok := cl["maximum_core_capacity_units"].(int); ok && v > 0 {
+			computeLimits.MaximumCoreCapacityUnits = aws.Int64(int64(v))
+		}
+		if v, ok := cl["maximum_ondemand_capacity_units"].(int); ok && v > 0 {
+			computeLimits.MaximumOnDemandCapacityUnits = aws.Int64(int64(v))
+		}
+		managedScalingPolicy := &emr.ManagedScalingPolicy{
+			ComputeLimits: computeLimits,
+		}
+
+		_, err := conn.PutManagedScalingPolicy(&emr.PutManagedScalingPolicyInput{
+			ClusterId:            aws.String(d.Get("cluster_id").(string)),
+			ManagedScalingPolicy: managedScalingPolicy,
+		})
+
+		if err != nil {
+			log.Printf("[ERROR] EMR.PutManagedScalingPolicy %s", err)
+			return fmt.Errorf("error putting EMR Managed Scaling Policy: %w", err)
+		}
+	}
+
+	d.SetId(d.Get("cluster_id").(string))
+	return nil
+}
+
+func resourceAwsEMRManagedScalingPolicyRead(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).emrconn
+	resp, err := conn.GetManagedScalingPolicy(&emr.GetManagedScalingPolicyInput{
+		ClusterId: aws.String(d.Id()),
+	})
+	if err != nil {
+		if isAWSErr(err, "InvalidRequestException", "does not exist") {
+			log.Printf("[WARN] EMR Managed Scaling Policy (%s) not found, removing from state", d.Get("cluster_id").(string))
+			d.SetId("")
+			return nil
+		}
+		return fmt.Errorf("error getting EMR Managed Scaling Policy (%s): %w", d.Id(), err)
+	}
+
+	if resp.ManagedScalingPolicy != nil {
+		attrs := make(map[string]interface{})
+		attrs["unit_type"] = aws.StringValue(resp.ManagedScalingPolicy.ComputeLimits.UnitType)
+		attrs["minimum_capacity_units"] = aws.Int64Value(resp.ManagedScalingPolicy.ComputeLimits.MinimumCapacityUnits)
+		attrs["maximum_capacity_units"] = aws.Int64Value(resp.ManagedScalingPolicy.ComputeLimits.MaximumCapacityUnits)
+		attrs["maximum_core_capacity_units"] = aws.Int64Value(resp.ManagedScalingPolicy.ComputeLimits.MaximumCoreCapacityUnits)
+		attrs["maximum_ondemand_capacity_units"] = aws.Int64Value(resp.ManagedScalingPolicy.ComputeLimits.MaximumOnDemandCapacityUnits)
+
+		computeLimits := make([]interface{}, 0)
+		computeLimits = append(computeLimits, attrs)
+		d.Set("compute_limits", computeLimits)
+	}
+
+	return nil
+}
+
+func resourceAwsEMRManagedScalingPolicyDelete(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).emrconn
+	_, err := conn.RemoveManagedScalingPolicy(&emr.RemoveManagedScalingPolicyInput{
+		ClusterId: aws.String(d.Get("cluster_id").(string)),
+	})
+	if err != nil {
+		if isAWSErr(err, "InvalidRequestException", "does not exist") {
+			return nil
+		}
+		return fmt.Errorf("error removing EMR Managed Scaling Policy (%s): %w", d.Id(), err)
+	}
+	return nil
+}