resource_compute_autoscaler.go

// ----------------------------------------------------------------------------
//
//     ***     AUTO GENERATED CODE    ***    AUTO GENERATED CODE     ***
//
// ----------------------------------------------------------------------------
//
//     This file is automatically generated by Magic Modules and manual
//     changes will be clobbered when the file is regenerated.
//
//     Please read more about how to change this file in
//     .github/CONTRIBUTING.md.
//
// ----------------------------------------------------------------------------

package google

import (
	"fmt"
	"log"
	"reflect"
	"strconv"
	"time"

	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
)

func resourceComputeAutoscaler() *schema.Resource {
	return &schema.Resource{
		Create: resourceComputeAutoscalerCreate,
		Read:   resourceComputeAutoscalerRead,
		Update: resourceComputeAutoscalerUpdate,
		Delete: resourceComputeAutoscalerDelete,

		Importer: &schema.ResourceImporter{
			State: resourceComputeAutoscalerImport,
		},

		Timeouts: &schema.ResourceTimeout{
			Create: schema.DefaultTimeout(4 * time.Minute),
			Update: schema.DefaultTimeout(4 * time.Minute),
			Delete: schema.DefaultTimeout(4 * time.Minute),
		},

		Schema: map[string]*schema.Schema{
			"autoscaling_policy": {
				Type:     schema.TypeList,
				Required: true,
				Description: `The configuration parameters for the autoscaling algorithm. You can
define one or more of the policies for an autoscaler: cpuUtilization,
customMetricUtilizations, and loadBalancingUtilization.

If none of these are specified, the default will be to autoscale based
on cpuUtilization to 0.6 or 60%.`,
				MaxItems: 1,
				Elem: &schema.Resource{
					Schema: map[string]*schema.Schema{
						"max_replicas": {
							Type:     schema.TypeInt,
							Required: true,
							Description: `The maximum number of instances that the autoscaler can scale up
to. This is required when creating or updating an autoscaler. The
maximum number of replicas should not be lower than minimal number
of replicas.`,
						},
						"min_replicas": {
							Type:     schema.TypeInt,
							Required: true,
							Description: `The minimum number of replicas that the autoscaler can scale down
to. This cannot be less than 0. If not provided, autoscaler will
choose a default value depending on maximum number of instances
allowed.`,
						},
						"cooldown_period": {
							Type:     schema.TypeInt,
							Optional: true,
							Description: `The number of seconds that the autoscaler should wait before it
starts collecting information from a new instance. This prevents
the autoscaler from collecting information when the instance is
initializing, during which the collected usage would not be
reliable. The default time autoscaler waits is 60 seconds.

Virtual machine initialization times might vary because of
numerous factors. We recommend that you test how long an
instance may take to initialize. To do this, create an instance
and time the startup process.`,
							Default: 60,
						},
						"cpu_utilization": {
							Type:     schema.TypeList,
							Computed: true,
							Optional: true,
							Description: `Defines the CPU utilization policy that allows the autoscaler to
scale based on the average CPU utilization of a managed instance
group.`,
							MaxItems: 1,
							Elem: &schema.Resource{
								Schema: map[string]*schema.Schema{
									"target": {
										Type:     schema.TypeFloat,
										Required: true,
										Description: `The target CPU utilization that the autoscaler should maintain.
Must be a float value in the range (0, 1]. If not specified, the
default is 0.6.

If the CPU level is below the target utilization, the autoscaler
scales down the number of instances until it reaches the minimum
number of instances you specified or until the average CPU of
your instances reaches the target utilization.

If the average CPU is above the target utilization, the autoscaler
scales up until it reaches the maximum number of instances you
specified or until the average utilization reaches the target
utilization.`,
									},
								},
							},
						},
						"load_balancing_utilization": {
							Type:        schema.TypeList,
							Optional:    true,
							Description: `Configuration parameters of autoscaling based on a load balancer.`,
							MaxItems:    1,
							Elem: &schema.Resource{
								Schema: map[string]*schema.Schema{
									"target": {
										Type:     schema.TypeFloat,
										Required: true,
										Description: `Fraction of backend capacity utilization (set in HTTP(s) load
balancing configuration) that autoscaler should maintain. Must
be a positive float value. If not defined, the default is 0.8.`,
									},
								},
							},
						},
						"metric": {
							Type:        schema.TypeList,
							Optional:    true,
							Description: `Configuration parameters of autoscaling based on a custom metric.`,
							Elem: &schema.Resource{
								Schema: map[string]*schema.Schema{
									"name": {
										Type:     schema.TypeString,
										Required: true,
										Description: `The identifier (type) of the Stackdriver Monitoring metric.
The metric cannot have negative values.

The metric must have a value type of INT64 or DOUBLE.`,
									},
									"target": {
										Type:     schema.TypeFloat,
										Optional: true,
										Description: `The target value of the metric that autoscaler should
maintain. This must be a positive value. A utilization
metric scales number of virtual machines handling requests
to increase or decrease proportionally to the metric.

For example, a good metric to use as a utilizationTarget is
www.googleapis.com/compute/instance/network/received_bytes_count.
The autoscaler will work to keep this value constant for each
of the instances.`,
									},
									"type": {
										Type:         schema.TypeString,
										Optional:     true,
										ValidateFunc: validation.StringInSlice([]string{"GAUGE", "DELTA_PER_SECOND", "DELTA_PER_MINUTE", ""}, false),
										Description: `Defines how target utilization value is expressed for a
Stackdriver Monitoring metric. Possible values: ["GAUGE", "DELTA_PER_SECOND", "DELTA_PER_MINUTE"]`,
									},
								},
							},
						},
						"mode": {
							Type:         schema.TypeString,
							Optional:     true,
							ValidateFunc: validation.StringInSlice([]string{"OFF", "ONLY_UP", "ON", ""}, false),
							Description:  `Defines operating mode for this policy. Default value: "ON" Possible values: ["OFF", "ONLY_UP", "ON"]`,
							Default:      "ON",
						},
						"scale_in_control": {
							Type:     schema.TypeList,
							Optional: true,
							Description: `Defines scale in controls to reduce the risk of response latency
and outages due to abrupt scale-in events`,
							MaxItems: 1,
							Elem: &schema.Resource{
								Schema: map[string]*schema.Schema{
									"max_scaled_in_replicas": {
										Type:        schema.TypeList,
										Optional:    true,
										Description: `A nested object resource`,
										MaxItems:    1,
										Elem: &schema.Resource{
											Schema: map[string]*schema.Schema{
												"fixed": {
													Type:     schema.TypeInt,
													Optional: true,
													Description: `Specifies a fixed number of VM instances. This must be a positive
integer.`,
												},
												"percent": {
													Type:     schema.TypeInt,
													Optional: true,
													Description: `Specifies a percentage of instances between 0 to 100%, inclusive.
For example, specify 80 for 80%.`,
												},
											},
										},
										AtLeastOneOf: []string{},
									},
									"time_window_sec": {
										Type:     schema.TypeInt,
										Optional: true,
										Description: `How long back autoscaling should look when computing recommendations
to include directives regarding slower scale down, as described above.`,
									},
								},
							},
							AtLeastOneOf: []string{},
						},
					},
				},
			},
			"name": {
				Type:         schema.TypeString,
				Required:     true,
				ForceNew:     true,
				ValidateFunc: validateGCPName,
				Description: `Name of the resource. The name must be 1-63 characters long and match
the regular expression '[a-z]([-a-z0-9]*[a-z0-9])?' which means the
first character must be a lowercase letter, and all following
characters must be a dash, lowercase letter, or digit, except the last
character, which cannot be a dash.`,
			},
			"target": {
				Type:             schema.TypeString,
				Required:         true,
				DiffSuppressFunc: compareSelfLinkOrResourceName,
				Description:      `URL of the managed instance group that this autoscaler will scale.`,
			},
			"description": {
				Type:        schema.TypeString,
				Optional:    true,
				Description: `An optional description of this resource.`,
			},
			"zone": {
				Type:             schema.TypeString,
				Computed:         true,
				Optional:         true,
				ForceNew:         true,
				DiffSuppressFunc: compareSelfLinkOrResourceName,
				Description:      `URL of the zone where the instance group resides.`,
			},
			"creation_timestamp": {
				Type:        schema.TypeString,
				Computed:    true,
				Description: `Creation timestamp in RFC3339 text format.`,
			},
			"project": {
				Type:     schema.TypeString,
				Optional: true,
				Computed: true,
				ForceNew: true,
			},
			"self_link": {
				Type:     schema.TypeString,
				Computed: true,
			},
		},
		UseJSONNumber: true,
	}
}

func resourceComputeAutoscalerCreate(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	userAgent, err := generateUserAgentString(d, config.userAgent)
	if err != nil {
		return err
	}

	obj := make(map[string]interface{})
	nameProp, err := expandComputeAutoscalerName(d.Get("name"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("name"); !isEmptyValue(reflect.ValueOf(nameProp)) && (ok || !reflect.DeepEqual(v, nameProp)) {
		obj["name"] = nameProp
	}
	descriptionProp, err := expandComputeAutoscalerDescription(d.Get("description"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("description"); !isEmptyValue(reflect.ValueOf(descriptionProp)) && (ok || !reflect.DeepEqual(v, descriptionProp)) {
		obj["description"] = descriptionProp
	}
	autoscalingPolicyProp, err := expandComputeAutoscalerAutoscalingPolicy(d.Get("autoscaling_policy"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("autoscaling_policy"); !isEmptyValue(reflect.ValueOf(autoscalingPolicyProp)) && (ok || !reflect.DeepEqual(v, autoscalingPolicyProp)) {
		obj["autoscalingPolicy"] = autoscalingPolicyProp
	}
	targetProp, err := expandComputeAutoscalerTarget(d.Get("target"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("target"); !isEmptyValue(reflect.ValueOf(targetProp)) && (ok || !reflect.DeepEqual(v, targetProp)) {
		obj["target"] = targetProp
	}
	zoneProp, err := expandComputeAutoscalerZone(d.Get("zone"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("zone"); !isEmptyValue(reflect.ValueOf(zoneProp)) && (ok || !reflect.DeepEqual(v, zoneProp)) {
		obj["zone"] = zoneProp
	}

	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/zones/{{zone}}/autoscalers")
	if err != nil {
		return err
	}

	log.Printf("[DEBUG] Creating new Autoscaler: %#v", obj)
	billingProject := ""

	project, err := getProject(d, config)
	if err != nil {
		return fmt.Errorf("Error fetching project for Autoscaler: %s", err)
	}
	billingProject = project

	// err == nil indicates that the billing_project value was found
	if bp, err := getBillingProject(d, config); err == nil {
		billingProject = bp
	}

	res, err := sendRequestWithTimeout(config, "POST", billingProject, url, userAgent, obj, d.Timeout(schema.TimeoutCreate))
	if err != nil {
		return fmt.Errorf("Error creating Autoscaler: %s", err)
	}

	// Store the ID now
	id, err := replaceVars(d, config, "projects/{{project}}/zones/{{zone}}/autoscalers/{{name}}")
	if err != nil {
		return fmt.Errorf("Error constructing id: %s", err)
	}
	d.SetId(id)

	err = computeOperationWaitTime(
		config, res, project, "Creating Autoscaler", userAgent,
		d.Timeout(schema.TimeoutCreate))

	if err != nil {
		// The resource didn't actually create
		d.SetId("")
		return fmt.Errorf("Error waiting to create Autoscaler: %s", err)
	}

	log.Printf("[DEBUG] Finished creating Autoscaler %q: %#v", d.Id(), res)

	return resourceComputeAutoscalerRead(d, meta)
}

func resourceComputeAutoscalerRead(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	userAgent, err := generateUserAgentString(d, config.userAgent)
	if err != nil {
		return err
	}

	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/zones/{{zone}}/autoscalers/{{name}}")
	if err != nil {
		return err
	}

	billingProject := ""

	project, err := getProject(d, config)
	if err != nil {
		return fmt.Errorf("Error fetching project for Autoscaler: %s", err)
	}
	billingProject = project

	// err == nil indicates that the billing_project value was found
	if bp, err := getBillingProject(d, config); err == nil {
		billingProject = bp
	}

	res, err := sendRequest(config, "GET", billingProject, url, userAgent, nil)
	if err != nil {
		return handleNotFoundError(err, d, fmt.Sprintf("ComputeAutoscaler %q", d.Id()))
	}

	if err := d.Set("project", project); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}

	if err := d.Set("creation_timestamp", flattenComputeAutoscalerCreationTimestamp(res["creationTimestamp"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("name", flattenComputeAutoscalerName(res["name"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("description", flattenComputeAutoscalerDescription(res["description"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("autoscaling_policy", flattenComputeAutoscalerAutoscalingPolicy(res["autoscalingPolicy"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("target", flattenComputeAutoscalerTarget(res["target"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("zone", flattenComputeAutoscalerZone(res["zone"], d, config)); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}
	if err := d.Set("self_link", ConvertSelfLinkToV1(res["selfLink"].(string))); err != nil {
		return fmt.Errorf("Error reading Autoscaler: %s", err)
	}

	return nil
}

func resourceComputeAutoscalerUpdate(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	userAgent, err := generateUserAgentString(d, config.userAgent)
	if err != nil {
		return err
	}

	billingProject := ""

	project, err := getProject(d, config)
	if err != nil {
		return fmt.Errorf("Error fetching project for Autoscaler: %s", err)
	}
	billingProject = project

	obj := make(map[string]interface{})
	nameProp, err := expandComputeAutoscalerName(d.Get("name"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("name"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, nameProp)) {
		obj["name"] = nameProp
	}
	descriptionProp, err := expandComputeAutoscalerDescription(d.Get("description"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("description"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, descriptionProp)) {
		obj["description"] = descriptionProp
	}
	autoscalingPolicyProp, err := expandComputeAutoscalerAutoscalingPolicy(d.Get("autoscaling_policy"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("autoscaling_policy"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, autoscalingPolicyProp)) {
		obj["autoscalingPolicy"] = autoscalingPolicyProp
	}
	targetProp, err := expandComputeAutoscalerTarget(d.Get("target"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("target"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, targetProp)) {
		obj["target"] = targetProp
	}
	zoneProp, err := expandComputeAutoscalerZone(d.Get("zone"), d, config)
	if err != nil {
		return err
	} else if v, ok := d.GetOkExists("zone"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, zoneProp)) {
		obj["zone"] = zoneProp
	}

	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/zones/{{zone}}/autoscalers?autoscaler={{name}}")
	if err != nil {
		return err
	}

	log.Printf("[DEBUG] Updating Autoscaler %q: %#v", d.Id(), obj)

	// err == nil indicates that the billing_project value was found
	if bp, err := getBillingProject(d, config); err == nil {
		billingProject = bp
	}

	res, err := sendRequestWithTimeout(config, "PUT", billingProject, url, userAgent, obj, d.Timeout(schema.TimeoutUpdate))

	if err != nil {
		return fmt.Errorf("Error updating Autoscaler %q: %s", d.Id(), err)
	} else {
		log.Printf("[DEBUG] Finished updating Autoscaler %q: %#v", d.Id(), res)
	}

	err = computeOperationWaitTime(
		config, res, project, "Updating Autoscaler", userAgent,
		d.Timeout(schema.TimeoutUpdate))

	if err != nil {
		return err
	}

	return resourceComputeAutoscalerRead(d, meta)
}

func resourceComputeAutoscalerDelete(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	userAgent, err := generateUserAgentString(d, config.userAgent)
	if err != nil {
		return err
	}

	billingProject := ""

	project, err := getProject(d, config)
	if err != nil {
		return fmt.Errorf("Error fetching project for Autoscaler: %s", err)
	}
	billingProject = project

	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/zones/{{zone}}/autoscalers/{{name}}")
	if err != nil {
		return err
	}

	var obj map[string]interface{}
	log.Printf("[DEBUG] Deleting Autoscaler %q", d.Id())

	// err == nil indicates that the billing_project value was found
	if bp, err := getBillingProject(d, config); err == nil {
		billingProject = bp
	}

	res, err := sendRequestWithTimeout(config, "DELETE", billingProject, url, userAgent, obj, d.Timeout(schema.TimeoutDelete))
	if err != nil {
		return handleNotFoundError(err, d, "Autoscaler")
	}

	err = computeOperationWaitTime(
		config, res, project, "Deleting Autoscaler", userAgent,
		d.Timeout(schema.TimeoutDelete))

	if err != nil {
		return err
	}

	log.Printf("[DEBUG] Finished deleting Autoscaler %q: %#v", d.Id(), res)
	return nil
}

func resourceComputeAutoscalerImport(d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
	config := meta.(*Config)
	if err := parseImportId([]string{
		"projects/(?P<project>[^/]+)/zones/(?P<zone>[^/]+)/autoscalers/(?P<name>[^/]+)",
		"(?P<project>[^/]+)/(?P<zone>[^/]+)/(?P<name>[^/]+)",
		"(?P<zone>[^/]+)/(?P<name>[^/]+)",
		"(?P<name>[^/]+)",
	}, d, config); err != nil {
		return nil, err
	}

	// Replace import id for the resource id
	id, err := replaceVars(d, config, "projects/{{project}}/zones/{{zone}}/autoscalers/{{name}}")
	if err != nil {
		return nil, fmt.Errorf("Error constructing id: %s", err)
	}
	d.SetId(id)

	return []*schema.ResourceData{d}, nil
}

func flattenComputeAutoscalerCreationTimestamp(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerName(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerDescription(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicy(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return nil
	}
	original := v.(map[string]interface{})
	if len(original) == 0 {
		return nil
	}
	transformed := make(map[string]interface{})
	transformed["min_replicas"] =
		flattenComputeAutoscalerAutoscalingPolicyMinReplicas(original["minNumReplicas"], d, config)
	transformed["max_replicas"] =
		flattenComputeAutoscalerAutoscalingPolicyMaxReplicas(original["maxNumReplicas"], d, config)
	transformed["cooldown_period"] =
		flattenComputeAutoscalerAutoscalingPolicyCooldownPeriod(original["coolDownPeriodSec"], d, config)
	transformed["mode"] =
		flattenComputeAutoscalerAutoscalingPolicyMode(original["mode"], d, config)
	transformed["scale_in_control"] =
		flattenComputeAutoscalerAutoscalingPolicyScaleInControl(original["scaleInControl"], d, config)
	transformed["cpu_utilization"] =
		flattenComputeAutoscalerAutoscalingPolicyCpuUtilization(original["cpuUtilization"], d, config)
	transformed["metric"] =
		flattenComputeAutoscalerAutoscalingPolicyMetric(original["customMetricUtilizations"], d, config)
	transformed["load_balancing_utilization"] =
		flattenComputeAutoscalerAutoscalingPolicyLoadBalancingUtilization(original["loadBalancingUtilization"], d, config)
	return []interface{}{transformed}
}
func flattenComputeAutoscalerAutoscalingPolicyMinReplicas(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyMaxReplicas(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyCooldownPeriod(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyMode(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicyScaleInControl(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return nil
	}
	original := v.(map[string]interface{})
	if len(original) == 0 {
		return nil
	}
	transformed := make(map[string]interface{})
	transformed["max_scaled_in_replicas"] =
		flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicas(original["maxScaledInReplicas"], d, config)
	transformed["time_window_sec"] =
		flattenComputeAutoscalerAutoscalingPolicyScaleInControlTimeWindowSec(original["timeWindowSec"], d, config)
	return []interface{}{transformed}
}
func flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicas(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return nil
	}
	original := v.(map[string]interface{})
	if len(original) == 0 {
		return nil
	}
	transformed := make(map[string]interface{})
	transformed["fixed"] =
		flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasFixed(original["fixed"], d, config)
	transformed["percent"] =
		flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasPercent(original["percent"], d, config)
	return []interface{}{transformed}
}
func flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasFixed(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasPercent(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyScaleInControlTimeWindowSec(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	// Handles the string fixed64 format
	if strVal, ok := v.(string); ok {
		if intVal, err := strconv.ParseInt(strVal, 10, 64); err == nil {
			return intVal
		}
	}

	// number values are represented as float64
	if floatVal, ok := v.(float64); ok {
		intVal := int(floatVal)
		return intVal
	}

	return v // let terraform core handle it otherwise
}

func flattenComputeAutoscalerAutoscalingPolicyCpuUtilization(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return nil
	}
	original := v.(map[string]interface{})
	if len(original) == 0 {
		return nil
	}
	transformed := make(map[string]interface{})
	transformed["target"] =
		flattenComputeAutoscalerAutoscalingPolicyCpuUtilizationTarget(original["utilizationTarget"], d, config)
	return []interface{}{transformed}
}
func flattenComputeAutoscalerAutoscalingPolicyCpuUtilizationTarget(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicyMetric(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return v
	}
	l := v.([]interface{})
	transformed := make([]interface{}, 0, len(l))
	for _, raw := range l {
		original := raw.(map[string]interface{})
		if len(original) < 1 {
			// Do not include empty json objects coming back from the api
			continue
		}
		transformed = append(transformed, map[string]interface{}{
			"name":   flattenComputeAutoscalerAutoscalingPolicyMetricName(original["metric"], d, config),
			"target": flattenComputeAutoscalerAutoscalingPolicyMetricTarget(original["utilizationTarget"], d, config),
			"type":   flattenComputeAutoscalerAutoscalingPolicyMetricType(original["utilizationTargetType"], d, config),
		})
	}
	return transformed
}
func flattenComputeAutoscalerAutoscalingPolicyMetricName(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicyMetricTarget(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicyMetricType(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerAutoscalingPolicyLoadBalancingUtilization(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return nil
	}
	original := v.(map[string]interface{})
	if len(original) == 0 {
		return nil
	}
	transformed := make(map[string]interface{})
	transformed["target"] =
		flattenComputeAutoscalerAutoscalingPolicyLoadBalancingUtilizationTarget(original["utilizationTarget"], d, config)
	return []interface{}{transformed}
}
func flattenComputeAutoscalerAutoscalingPolicyLoadBalancingUtilizationTarget(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	return v
}

func flattenComputeAutoscalerTarget(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return v
	}
	return ConvertSelfLinkToV1(v.(string))
}

func flattenComputeAutoscalerZone(v interface{}, d *schema.ResourceData, config *Config) interface{} {
	if v == nil {
		return v
	}
	return ConvertSelfLinkToV1(v.(string))
}

func expandComputeAutoscalerName(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerDescription(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicy(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	if len(l) == 0 || l[0] == nil {
		return nil, nil
	}
	raw := l[0]
	original := raw.(map[string]interface{})
	transformed := make(map[string]interface{})

	transformedMinReplicas, err := expandComputeAutoscalerAutoscalingPolicyMinReplicas(original["min_replicas"], d, config)
	if err != nil {
		return nil, err
	} else {
		transformed["minNumReplicas"] = transformedMinReplicas
	}

	transformedMaxReplicas, err := expandComputeAutoscalerAutoscalingPolicyMaxReplicas(original["max_replicas"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedMaxReplicas); val.IsValid() && !isEmptyValue(val) {
		transformed["maxNumReplicas"] = transformedMaxReplicas
	}

	transformedCooldownPeriod, err := expandComputeAutoscalerAutoscalingPolicyCooldownPeriod(original["cooldown_period"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedCooldownPeriod); val.IsValid() && !isEmptyValue(val) {
		transformed["coolDownPeriodSec"] = transformedCooldownPeriod
	}

	transformedMode, err := expandComputeAutoscalerAutoscalingPolicyMode(original["mode"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedMode); val.IsValid() && !isEmptyValue(val) {
		transformed["mode"] = transformedMode
	}

	transformedScaleInControl, err := expandComputeAutoscalerAutoscalingPolicyScaleInControl(original["scale_in_control"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedScaleInControl); val.IsValid() && !isEmptyValue(val) {
		transformed["scaleInControl"] = transformedScaleInControl
	}

	transformedCpuUtilization, err := expandComputeAutoscalerAutoscalingPolicyCpuUtilization(original["cpu_utilization"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedCpuUtilization); val.IsValid() && !isEmptyValue(val) {
		transformed["cpuUtilization"] = transformedCpuUtilization
	}

	transformedMetric, err := expandComputeAutoscalerAutoscalingPolicyMetric(original["metric"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedMetric); val.IsValid() && !isEmptyValue(val) {
		transformed["customMetricUtilizations"] = transformedMetric
	}

	transformedLoadBalancingUtilization, err := expandComputeAutoscalerAutoscalingPolicyLoadBalancingUtilization(original["load_balancing_utilization"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedLoadBalancingUtilization); val.IsValid() && !isEmptyValue(val) {
		transformed["loadBalancingUtilization"] = transformedLoadBalancingUtilization
	}

	return transformed, nil
}

func expandComputeAutoscalerAutoscalingPolicyMinReplicas(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyMaxReplicas(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyCooldownPeriod(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyMode(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyScaleInControl(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	if len(l) == 0 || l[0] == nil {
		return nil, nil
	}
	raw := l[0]
	original := raw.(map[string]interface{})
	transformed := make(map[string]interface{})

	transformedMaxScaledInReplicas, err := expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicas(original["max_scaled_in_replicas"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedMaxScaledInReplicas); val.IsValid() && !isEmptyValue(val) {
		transformed["maxScaledInReplicas"] = transformedMaxScaledInReplicas
	}

	transformedTimeWindowSec, err := expandComputeAutoscalerAutoscalingPolicyScaleInControlTimeWindowSec(original["time_window_sec"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedTimeWindowSec); val.IsValid() && !isEmptyValue(val) {
		transformed["timeWindowSec"] = transformedTimeWindowSec
	}

	return transformed, nil
}

func expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicas(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	if len(l) == 0 || l[0] == nil {
		return nil, nil
	}
	raw := l[0]
	original := raw.(map[string]interface{})
	transformed := make(map[string]interface{})

	transformedFixed, err := expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasFixed(original["fixed"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedFixed); val.IsValid() && !isEmptyValue(val) {
		transformed["fixed"] = transformedFixed
	}

	transformedPercent, err := expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasPercent(original["percent"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedPercent); val.IsValid() && !isEmptyValue(val) {
		transformed["percent"] = transformedPercent
	}

	return transformed, nil
}

func expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasFixed(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyScaleInControlMaxScaledInReplicasPercent(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyScaleInControlTimeWindowSec(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyCpuUtilization(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	if len(l) == 0 || l[0] == nil {
		return nil, nil
	}
	raw := l[0]
	original := raw.(map[string]interface{})
	transformed := make(map[string]interface{})

	transformedTarget, err := expandComputeAutoscalerAutoscalingPolicyCpuUtilizationTarget(original["target"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedTarget); val.IsValid() && !isEmptyValue(val) {
		transformed["utilizationTarget"] = transformedTarget
	}

	return transformed, nil
}

func expandComputeAutoscalerAutoscalingPolicyCpuUtilizationTarget(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyMetric(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	req := make([]interface{}, 0, len(l))
	for _, raw := range l {
		if raw == nil {
			continue
		}
		original := raw.(map[string]interface{})
		transformed := make(map[string]interface{})

		transformedName, err := expandComputeAutoscalerAutoscalingPolicyMetricName(original["name"], d, config)
		if err != nil {
			return nil, err
		} else if val := reflect.ValueOf(transformedName); val.IsValid() && !isEmptyValue(val) {
			transformed["metric"] = transformedName
		}

		transformedTarget, err := expandComputeAutoscalerAutoscalingPolicyMetricTarget(original["target"], d, config)
		if err != nil {
			return nil, err
		} else if val := reflect.ValueOf(transformedTarget); val.IsValid() && !isEmptyValue(val) {
			transformed["utilizationTarget"] = transformedTarget
		}

		transformedType, err := expandComputeAutoscalerAutoscalingPolicyMetricType(original["type"], d, config)
		if err != nil {
			return nil, err
		} else if val := reflect.ValueOf(transformedType); val.IsValid() && !isEmptyValue(val) {
			transformed["utilizationTargetType"] = transformedType
		}

		req = append(req, transformed)
	}
	return req, nil
}

func expandComputeAutoscalerAutoscalingPolicyMetricName(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyMetricTarget(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyMetricType(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerAutoscalingPolicyLoadBalancingUtilization(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	l := v.([]interface{})
	if len(l) == 0 || l[0] == nil {
		return nil, nil
	}
	raw := l[0]
	original := raw.(map[string]interface{})
	transformed := make(map[string]interface{})

	transformedTarget, err := expandComputeAutoscalerAutoscalingPolicyLoadBalancingUtilizationTarget(original["target"], d, config)
	if err != nil {
		return nil, err
	} else if val := reflect.ValueOf(transformedTarget); val.IsValid() && !isEmptyValue(val) {
		transformed["utilizationTarget"] = transformedTarget
	}

	return transformed, nil
}

func expandComputeAutoscalerAutoscalingPolicyLoadBalancingUtilizationTarget(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	return v, nil
}

func expandComputeAutoscalerTarget(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	if v == nil || v.(string) == "" {
		return "", nil
	}
	f, err := parseZonalFieldValue("instanceGroupManagers", v.(string), "project", "zone", d, config, true)
	if err != nil {
		return nil, fmt.Errorf("Invalid value for target: %s", err)
	}

	url, err := replaceVars(d, config, "{{ComputeBasePath}}"+f.RelativeLink())
	if err != nil {
		return nil, err
	}

	return url, nil
}

func expandComputeAutoscalerZone(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
	f, err := parseGlobalFieldValue("zones", v.(string), "project", d, config, true)
	if err != nil {
		return nil, fmt.Errorf("Invalid value for zone: %s", err)
	}
	return f.RelativeLink(), nil
}