resource_huaweicloud_vpc_v1.go

package huaweicloud

import (
	"fmt"
	"log"
	"time"

	"github.com/hashicorp/terraform/helper/schema"
	"github.com/huaweicloud/golangsdk/openstack/networking/v1/vpcs"

	"github.com/hashicorp/terraform/helper/resource"
	"github.com/huaweicloud/golangsdk"
)

func resourceVirtualPrivateCloudV1() *schema.Resource {
	return &schema.Resource{
		Create: resourceVirtualPrivateCloudV1Create,
		Read:   resourceVirtualPrivateCloudV1Read,
		Update: resourceVirtualPrivateCloudV1Update,
		Delete: resourceVirtualPrivateCloudV1Delete,
		Importer: &schema.ResourceImporter{
			State: schema.ImportStatePassthrough,
		},

		Timeouts: &schema.ResourceTimeout{
			Create: schema.DefaultTimeout(10 * time.Minute),
			Delete: schema.DefaultTimeout(3 * time.Minute),
		},

		Schema: map[string]*schema.Schema{ //request and response parameters
			"region": {
				Type:     schema.TypeString,
				Optional: true,
				ForceNew: true,
				Computed: true,
			},
			"name": {
				Type:         schema.TypeString,
				Required:     true,
				ForceNew:     false,
				ValidateFunc: validateName,
			},
			"cidr": {
				Type:         schema.TypeString,
				Required:     true,
				ForceNew:     false,
				ValidateFunc: validateCIDR,
			},
			"status": {
				Type:     schema.TypeString,
				Computed: true,
			},
			"shared": {
				Type:     schema.TypeBool,
				Computed: true,
			},
		},
	}
}

func resourceVirtualPrivateCloudV1Create(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	vpcClient, err := config.networkingV1Client(GetRegion(d, config))

	if err != nil {
		return fmt.Errorf("Error creating Huaweicloud vpc client: %s", err)
	}

	createOpts := vpcs.CreateOpts{
		Name: d.Get("name").(string),
		CIDR: d.Get("cidr").(string),
	}

	n, err := vpcs.Create(vpcClient, createOpts).Extract()

	if err != nil {
		return fmt.Errorf("Error creating Huaweicloud VPC: %s", err)
	}
	d.SetId(n.ID)

	log.Printf("[INFO] Vpc ID: %s", n.ID)

	stateConf := &resource.StateChangeConf{
		Pending:    []string{"CREATING"},
		Target:     []string{"ACTIVE"},
		Refresh:    waitForVpcActive(vpcClient, n.ID),
		Timeout:    d.Timeout(schema.TimeoutCreate),
		Delay:      5 * time.Second,
		MinTimeout: 3 * time.Second,
	}

	_, stateErr := stateConf.WaitForState()
	if stateErr != nil {
		return fmt.Errorf(
			"Error waiting for Vpc (%s) to become ACTIVE: %s",
			n.ID, stateErr)
	}

	return resourceVirtualPrivateCloudV1Read(d, meta)

}

func resourceVirtualPrivateCloudV1Read(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	vpcClient, err := config.networkingV1Client(GetRegion(d, config))
	if err != nil {
		return fmt.Errorf("Error creating Huaweicloud Vpc client: %s", err)
	}

	n, err := vpcs.Get(vpcClient, d.Id()).Extract()
	if err != nil {
		if _, ok := err.(golangsdk.ErrDefault404); ok {
			d.SetId("")
			return nil
		}

		return fmt.Errorf("Error retrieving Huaweicloud Vpc: %s", err)
	}

	d.Set("id", n.ID)
	d.Set("name", n.Name)
	d.Set("cidr", n.CIDR)
	d.Set("status", n.Status)
	d.Set("shared", n.EnableSharedSnat)
	d.Set("region", GetRegion(d, config))

	return nil
}

func resourceVirtualPrivateCloudV1Update(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	vpcClient, err := config.networkingV1Client(GetRegion(d, config))
	if err != nil {
		return fmt.Errorf("Error creating Huaweicloud Vpc: %s", err)
	}

	var updateOpts vpcs.UpdateOpts

	if d.HasChange("name") {
		updateOpts.Name = d.Get("name").(string)
	}
	if d.HasChange("cidr") {
		updateOpts.CIDR = d.Get("cidr").(string)
	}

	_, err = vpcs.Update(vpcClient, d.Id(), updateOpts).Extract()
	if err != nil {
		return fmt.Errorf("Error updating Huaweicloud Vpc: %s", err)
	}

	return resourceVirtualPrivateCloudV1Read(d, meta)
}

func resourceVirtualPrivateCloudV1Delete(d *schema.ResourceData, meta interface{}) error {

	config := meta.(*Config)
	vpcClient, err := config.networkingV1Client(GetRegion(d, config))
	if err != nil {
		return fmt.Errorf("Error creating Huaweicloud vpc: %s", err)
	}

	stateConf := &resource.StateChangeConf{
		Pending:    []string{"ACTIVE"},
		Target:     []string{"DELETED"},
		Refresh:    waitForVpcDelete(vpcClient, d.Id()),
		Timeout:    d.Timeout(schema.TimeoutDelete),
		Delay:      5 * time.Second,
		MinTimeout: 3 * time.Second,
	}

	_, err = stateConf.WaitForState()
	if err != nil {
		return fmt.Errorf("Error deleting Huaweicloud Vpc: %s", err)
	}

	d.SetId("")
	return nil
}

func waitForVpcActive(vpcClient *golangsdk.ServiceClient, vpcId string) resource.StateRefreshFunc {
	return func() (interface{}, string, error) {
		n, err := vpcs.Get(vpcClient, vpcId).Extract()
		if err != nil {
			return nil, "", err
		}

		if n.Status == "OK" {
			return n, "ACTIVE", nil
		}

		//If vpc status is other than Ok, send error
		if n.Status == "DOWN" {
			return nil, "", fmt.Errorf("Vpc status: '%s'", n.Status)
		}

		return n, n.Status, nil
	}
}

func waitForVpcDelete(vpcClient *golangsdk.ServiceClient, vpcId string) resource.StateRefreshFunc {
	return func() (interface{}, string, error) {

		r, err := vpcs.Get(vpcClient, vpcId).Extract()
		if err != nil {
			if _, ok := err.(golangsdk.ErrDefault404); ok {
				log.Printf("[INFO] Successfully deleted Huaweicloud vpc %s", vpcId)
				return r, "DELETED", nil
			}
			return r, "ACTIVE", err
		}

		err = vpcs.Delete(vpcClient, vpcId).ExtractErr()

		if err != nil {
			if _, ok := err.(golangsdk.ErrDefault404); ok {
				log.Printf("[INFO] Successfully deleted Huaweicloud vpc %s", vpcId)
				return r, "DELETED", nil
			}
			if errCode, ok := err.(golangsdk.ErrUnexpectedResponseCode); ok {
				if errCode.Actual == 409 {
					return r, "ACTIVE", nil
				}
			}
			return r, "ACTIVE", err
		}

		return r, "ACTIVE", nil
	}
}