forked from hashicorp/terraform-provider-aws
/
resource_aws_customer_gateway.go
278 lines (228 loc) · 7.24 KB
/
resource_aws_customer_gateway.go
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package aws
import (
"fmt"
"log"
"strconv"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsCustomerGateway() *schema.Resource {
return &schema.Resource{
Create: resourceAwsCustomerGatewayCreate,
Read: resourceAwsCustomerGatewayRead,
Update: resourceAwsCustomerGatewayUpdate,
Delete: resourceAwsCustomerGatewayDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"bgp_asn": {
Type: schema.TypeInt,
Required: true,
ForceNew: true,
},
"ip_address": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"type": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"tags": tagsSchema(),
},
}
}
func resourceAwsCustomerGatewayCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
ipAddress := d.Get("ip_address").(string)
vpnType := d.Get("type").(string)
bgpAsn := d.Get("bgp_asn").(int)
alreadyExists, err := resourceAwsCustomerGatewayExists(vpnType, ipAddress, bgpAsn, conn)
if err != nil {
return err
}
if alreadyExists {
return fmt.Errorf("An existing customer gateway for IpAddress: %s, VpnType: %s, BGP ASN: %d has been found", ipAddress, vpnType, bgpAsn)
}
createOpts := &ec2.CreateCustomerGatewayInput{
BgpAsn: aws.Int64(int64(bgpAsn)),
PublicIp: aws.String(ipAddress),
Type: aws.String(vpnType),
}
// Create the Customer Gateway.
log.Printf("[DEBUG] Creating customer gateway")
resp, err := conn.CreateCustomerGateway(createOpts)
if err != nil {
return fmt.Errorf("Error creating customer gateway: %s", err)
}
// Store the ID
customerGateway := resp.CustomerGateway
d.SetId(*customerGateway.CustomerGatewayId)
log.Printf("[INFO] Customer gateway ID: %s", *customerGateway.CustomerGatewayId)
// Wait for the CustomerGateway to be available.
stateConf := &resource.StateChangeConf{
Pending: []string{"pending"},
Target: []string{"available"},
Refresh: customerGatewayRefreshFunc(conn, *customerGateway.CustomerGatewayId),
Timeout: 10 * time.Minute,
Delay: 10 * time.Second,
MinTimeout: 3 * time.Second,
}
_, stateErr := stateConf.WaitForState()
if stateErr != nil {
return fmt.Errorf(
"Error waiting for customer gateway (%s) to become ready: %s",
*customerGateway.CustomerGatewayId, err)
}
// Create tags.
if err := setTags(conn, d); err != nil {
return err
}
return nil
}
func customerGatewayRefreshFunc(conn *ec2.EC2, gatewayId string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
gatewayFilter := &ec2.Filter{
Name: aws.String("customer-gateway-id"),
Values: []*string{aws.String(gatewayId)},
}
resp, err := conn.DescribeCustomerGateways(&ec2.DescribeCustomerGatewaysInput{
Filters: []*ec2.Filter{gatewayFilter},
})
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidCustomerGatewayID.NotFound" {
resp = nil
} else {
log.Printf("Error on CustomerGatewayRefresh: %s", err)
return nil, "", err
}
}
if resp == nil || len(resp.CustomerGateways) == 0 {
// handle consistency issues
return nil, "", nil
}
gateway := resp.CustomerGateways[0]
return gateway, *gateway.State, nil
}
}
func resourceAwsCustomerGatewayExists(vpnType, ipAddress string, bgpAsn int, conn *ec2.EC2) (bool, error) {
ipAddressFilter := &ec2.Filter{
Name: aws.String("ip-address"),
Values: []*string{aws.String(ipAddress)},
}
typeFilter := &ec2.Filter{
Name: aws.String("type"),
Values: []*string{aws.String(vpnType)},
}
bgp := strconv.Itoa(bgpAsn)
bgpAsnFilter := &ec2.Filter{
Name: aws.String("bgp-asn"),
Values: []*string{aws.String(bgp)},
}
resp, err := conn.DescribeCustomerGateways(&ec2.DescribeCustomerGatewaysInput{
Filters: []*ec2.Filter{ipAddressFilter, typeFilter, bgpAsnFilter},
})
if err != nil {
return false, err
}
if len(resp.CustomerGateways) > 0 && *resp.CustomerGateways[0].State != "deleted" {
return true, nil
}
return false, nil
}
func resourceAwsCustomerGatewayRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
gatewayFilter := &ec2.Filter{
Name: aws.String("customer-gateway-id"),
Values: []*string{aws.String(d.Id())},
}
resp, err := conn.DescribeCustomerGateways(&ec2.DescribeCustomerGatewaysInput{
Filters: []*ec2.Filter{gatewayFilter},
})
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidCustomerGatewayID.NotFound" {
d.SetId("")
return nil
} else {
log.Printf("[ERROR] Error finding CustomerGateway: %s", err)
return err
}
}
if len(resp.CustomerGateways) != 1 {
return fmt.Errorf("Error finding CustomerGateway: %s", d.Id())
}
if *resp.CustomerGateways[0].State == "deleted" {
log.Printf("[INFO] Customer Gateway is in `deleted` state: %s", d.Id())
d.SetId("")
return nil
}
customerGateway := resp.CustomerGateways[0]
d.Set("ip_address", customerGateway.IpAddress)
d.Set("type", customerGateway.Type)
d.Set("tags", tagsToMap(customerGateway.Tags))
if *customerGateway.BgpAsn != "" {
val, err := strconv.ParseInt(*customerGateway.BgpAsn, 0, 0)
if err != nil {
return fmt.Errorf("error parsing bgp_asn: %s", err)
}
d.Set("bgp_asn", int(val))
}
return nil
}
func resourceAwsCustomerGatewayUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
// Update tags if required.
if err := setTags(conn, d); err != nil {
return err
}
d.SetPartial("tags")
return resourceAwsCustomerGatewayRead(d, meta)
}
func resourceAwsCustomerGatewayDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
_, err := conn.DeleteCustomerGateway(&ec2.DeleteCustomerGatewayInput{
CustomerGatewayId: aws.String(d.Id()),
})
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidCustomerGatewayID.NotFound" {
return nil
} else {
log.Printf("[ERROR] Error deleting CustomerGateway: %s", err)
return err
}
}
gatewayFilter := &ec2.Filter{
Name: aws.String("customer-gateway-id"),
Values: []*string{aws.String(d.Id())},
}
err = resource.Retry(5*time.Minute, func() *resource.RetryError {
resp, err := conn.DescribeCustomerGateways(&ec2.DescribeCustomerGatewaysInput{
Filters: []*ec2.Filter{gatewayFilter},
})
if err != nil {
if awserr, ok := err.(awserr.Error); ok && awserr.Code() == "InvalidCustomerGatewayID.NotFound" {
return nil
}
return resource.NonRetryableError(err)
}
if len(resp.CustomerGateways) != 1 {
return resource.RetryableError(fmt.Errorf("Error finding CustomerGateway for delete: %s", d.Id()))
}
switch *resp.CustomerGateways[0].State {
case "pending", "available", "deleting":
return resource.RetryableError(fmt.Errorf("Gateway (%s) in state (%s), retrying", d.Id(), *resp.CustomerGateways[0].State))
case "deleted":
return nil
default:
return resource.RetryableError(fmt.Errorf("Unrecognized state (%s) for Customer Gateway delete on (%s)", *resp.CustomerGateways[0].State, d.Id()))
}
})
return err
}