forked from hashicorp/terraform-provider-aws
/
ec2_transit_gateway.go
592 lines (466 loc) · 19.6 KB
/
ec2_transit_gateway.go
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package aws
import (
"fmt"
"log"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/resource"
)
func decodeEc2TransitGatewayRouteID(id string) (string, string, error) {
parts := strings.Split(id, "_")
if len(parts) != 2 {
return "", "", fmt.Errorf("Unexpected format of ID (%q), expected tgw-rtb-ID_DESTINATION", id)
}
return parts[0], parts[1], nil
}
func decodeEc2TransitGatewayRouteTableAssociationID(id string) (string, string, error) {
parts := strings.Split(id, "_")
if len(parts) != 2 {
return "", "", fmt.Errorf("Unexpected format of ID (%q), expected tgw-rtb-ID_tgw-attach-ID", id)
}
return parts[0], parts[1], nil
}
func decodeEc2TransitGatewayRouteTablePropagationID(id string) (string, string, error) {
parts := strings.Split(id, "_")
if len(parts) != 2 {
return "", "", fmt.Errorf("Unexpected format of ID (%q), expected tgw-rtb-ID_tgw-attach-ID", id)
}
return parts[0], parts[1], nil
}
func ec2DescribeTransitGateway(conn *ec2.EC2, transitGatewayID string) (*ec2.TransitGateway, error) {
input := &ec2.DescribeTransitGatewaysInput{
TransitGatewayIds: []*string{aws.String(transitGatewayID)},
}
log.Printf("[DEBUG] Reading EC2 Transit Gateway (%s): %s", transitGatewayID, input)
for {
output, err := conn.DescribeTransitGateways(input)
if err != nil {
return nil, err
}
if output == nil || len(output.TransitGateways) == 0 {
return nil, nil
}
for _, transitGateway := range output.TransitGateways {
if transitGateway == nil {
continue
}
if aws.StringValue(transitGateway.TransitGatewayId) == transitGatewayID {
return transitGateway, nil
}
}
if aws.StringValue(output.NextToken) == "" {
break
}
input.NextToken = output.NextToken
}
return nil, nil
}
func ec2DescribeTransitGatewayRoute(conn *ec2.EC2, transitGatewayRouteTableID, destination string) (*ec2.TransitGatewayRoute, error) {
input := &ec2.SearchTransitGatewayRoutesInput{
// As of the time of writing, the EC2 API reference documentation (https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_SearchTransitGatewayRoutes.html)
// incorrectly states which filter Names are allowed. The below are example errors:
// InvalidParameterValue: Value (transit-gateway-route-destination-cidr-block) for parameter Filters is invalid.
// InvalidParameterValue: Value (transit-gateway-route-type) for parameter Filters is invalid.
// InvalidParameterValue: Value (destination-cidr-block) for parameter Filters is invalid.
Filters: []*ec2.Filter{
{
Name: aws.String("type"),
Values: []*string{aws.String("static")},
},
},
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
log.Printf("[DEBUG] Searching EC2 Transit Gateway Route Table (%s): %s", transitGatewayRouteTableID, input)
output, err := conn.SearchTransitGatewayRoutes(input)
if err != nil {
return nil, err
}
if output == nil || len(output.Routes) == 0 {
return nil, nil
}
for _, route := range output.Routes {
if route == nil {
continue
}
if aws.StringValue(route.DestinationCidrBlock) == destination {
return route, nil
}
}
return nil, nil
}
func ec2DescribeTransitGatewayRouteTable(conn *ec2.EC2, transitGatewayRouteTableID string) (*ec2.TransitGatewayRouteTable, error) {
input := &ec2.DescribeTransitGatewayRouteTablesInput{
TransitGatewayRouteTableIds: []*string{aws.String(transitGatewayRouteTableID)},
}
log.Printf("[DEBUG] Reading EC2 Transit Gateway Route Table (%s): %s", transitGatewayRouteTableID, input)
for {
output, err := conn.DescribeTransitGatewayRouteTables(input)
if err != nil {
return nil, err
}
if output == nil || len(output.TransitGatewayRouteTables) == 0 {
return nil, nil
}
for _, transitGatewayRouteTable := range output.TransitGatewayRouteTables {
if transitGatewayRouteTable == nil {
continue
}
if aws.StringValue(transitGatewayRouteTable.TransitGatewayRouteTableId) == transitGatewayRouteTableID {
return transitGatewayRouteTable, nil
}
}
if aws.StringValue(output.NextToken) == "" {
break
}
input.NextToken = output.NextToken
}
return nil, nil
}
func ec2DescribeTransitGatewayRouteTableAssociation(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string) (*ec2.TransitGatewayRouteTableAssociation, error) {
if transitGatewayRouteTableID == "" {
return nil, nil
}
input := &ec2.GetTransitGatewayRouteTableAssociationsInput{
Filters: []*ec2.Filter{
{
Name: aws.String("transit-gateway-attachment-id"),
Values: []*string{aws.String(transitGatewayAttachmentID)},
},
},
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
output, err := conn.GetTransitGatewayRouteTableAssociations(input)
if err != nil {
return nil, err
}
if output == nil || len(output.Associations) == 0 {
return nil, nil
}
return output.Associations[0], nil
}
func ec2DescribeTransitGatewayRouteTablePropagation(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string) (*ec2.TransitGatewayRouteTablePropagation, error) {
if transitGatewayRouteTableID == "" {
return nil, nil
}
input := &ec2.GetTransitGatewayRouteTablePropagationsInput{
Filters: []*ec2.Filter{
{
Name: aws.String("transit-gateway-attachment-id"),
Values: []*string{aws.String(transitGatewayAttachmentID)},
},
},
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
output, err := conn.GetTransitGatewayRouteTablePropagations(input)
if err != nil {
return nil, err
}
if output == nil || len(output.TransitGatewayRouteTablePropagations) == 0 {
return nil, nil
}
return output.TransitGatewayRouteTablePropagations[0], nil
}
func ec2DescribeTransitGatewayVpcAttachment(conn *ec2.EC2, transitGatewayAttachmentID string) (*ec2.TransitGatewayVpcAttachment, error) {
input := &ec2.DescribeTransitGatewayVpcAttachmentsInput{
TransitGatewayAttachmentIds: []*string{aws.String(transitGatewayAttachmentID)},
}
log.Printf("[DEBUG] Reading EC2 Transit Gateway VPC Attachment (%s): %s", transitGatewayAttachmentID, input)
for {
output, err := conn.DescribeTransitGatewayVpcAttachments(input)
if err != nil {
return nil, err
}
if output == nil || len(output.TransitGatewayVpcAttachments) == 0 {
return nil, nil
}
for _, transitGatewayVpcAttachment := range output.TransitGatewayVpcAttachments {
if transitGatewayVpcAttachment == nil {
continue
}
if aws.StringValue(transitGatewayVpcAttachment.TransitGatewayAttachmentId) == transitGatewayAttachmentID {
return transitGatewayVpcAttachment, nil
}
}
if aws.StringValue(output.NextToken) == "" {
break
}
input.NextToken = output.NextToken
}
return nil, nil
}
func ec2TransitGatewayRouteTableAssociationUpdate(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string, associate bool) error {
transitGatewayAssociation, err := ec2DescribeTransitGatewayRouteTableAssociation(conn, transitGatewayRouteTableID, transitGatewayAttachmentID)
if err != nil {
return fmt.Errorf("error determining EC2 Transit Gateway Attachment Route Table (%s) association (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
if associate && transitGatewayAssociation == nil {
input := &ec2.AssociateTransitGatewayRouteTableInput{
TransitGatewayAttachmentId: aws.String(transitGatewayAttachmentID),
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
if _, err := conn.AssociateTransitGatewayRouteTable(input); err != nil {
return fmt.Errorf("error associating EC2 Transit Gateway Route Table (%s) association (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
if err := waitForEc2TransitGatewayRouteTableAssociationCreation(conn, transitGatewayRouteTableID, transitGatewayAttachmentID); err != nil {
return fmt.Errorf("error waiting for EC2 Transit Gateway Route Table (%s) association (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
} else if !associate && transitGatewayAssociation != nil {
input := &ec2.DisassociateTransitGatewayRouteTableInput{
TransitGatewayAttachmentId: aws.String(transitGatewayAttachmentID),
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
if _, err := conn.DisassociateTransitGatewayRouteTable(input); err != nil {
return fmt.Errorf("error disassociating EC2 Transit Gateway Route Table (%s) disassociation (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
if err := waitForEc2TransitGatewayRouteTableAssociationDeletion(conn, transitGatewayRouteTableID, transitGatewayAttachmentID); err != nil {
return fmt.Errorf("error waiting for EC2 Transit Gateway Route Table (%s) disassociation (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
}
return nil
}
func ec2TransitGatewayRouteTablePropagationUpdate(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string, enablePropagation bool) error {
transitGatewayRouteTablePropagation, err := ec2DescribeTransitGatewayRouteTablePropagation(conn, transitGatewayRouteTableID, transitGatewayAttachmentID)
if err != nil {
return fmt.Errorf("error determining EC2 Transit Gateway Attachment (%s) propagation to Route Table (%s): %s", transitGatewayAttachmentID, transitGatewayRouteTableID, err)
}
if enablePropagation && transitGatewayRouteTablePropagation == nil {
input := &ec2.EnableTransitGatewayRouteTablePropagationInput{
TransitGatewayAttachmentId: aws.String(transitGatewayAttachmentID),
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
if _, err := conn.EnableTransitGatewayRouteTablePropagation(input); err != nil {
return fmt.Errorf("error enabling EC2 Transit Gateway Attachment (%s) propagation to Route Table (%s): %s", transitGatewayAttachmentID, transitGatewayRouteTableID, err)
}
} else if !enablePropagation && transitGatewayRouteTablePropagation != nil {
input := &ec2.DisableTransitGatewayRouteTablePropagationInput{
TransitGatewayAttachmentId: aws.String(transitGatewayAttachmentID),
TransitGatewayRouteTableId: aws.String(transitGatewayRouteTableID),
}
if _, err := conn.DisableTransitGatewayRouteTablePropagation(input); err != nil {
return fmt.Errorf("error disabling EC2 Transit Gateway Attachment (%s) propagation to Route Table (%s): %s", transitGatewayAttachmentID, transitGatewayRouteTableID, err)
}
}
return nil
}
func ec2TransitGatewayRefreshFunc(conn *ec2.EC2, transitGatewayID string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
transitGateway, err := ec2DescribeTransitGateway(conn, transitGatewayID)
if isAWSErr(err, "InvalidTransitGatewayID.NotFound", "") {
return nil, ec2.TransitGatewayStateDeleted, nil
}
if err != nil {
return nil, "", fmt.Errorf("error reading EC2 Transit Gateway (%s): %s", transitGatewayID, err)
}
if transitGateway == nil {
return nil, ec2.TransitGatewayStateDeleted, nil
}
return transitGateway, aws.StringValue(transitGateway.State), nil
}
}
func ec2TransitGatewayRouteTableRefreshFunc(conn *ec2.EC2, transitGatewayRouteTableID string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
transitGatewayRouteTable, err := ec2DescribeTransitGatewayRouteTable(conn, transitGatewayRouteTableID)
if isAWSErr(err, "InvalidRouteTableID.NotFound", "") {
return nil, ec2.TransitGatewayRouteTableStateDeleted, nil
}
if err != nil {
return nil, "", fmt.Errorf("error reading EC2 Transit Gateway Route Table (%s): %s", transitGatewayRouteTableID, err)
}
if transitGatewayRouteTable == nil {
return nil, ec2.TransitGatewayRouteTableStateDeleted, nil
}
return transitGatewayRouteTable, aws.StringValue(transitGatewayRouteTable.State), nil
}
}
func ec2TransitGatewayRouteTableAssociationRefreshFunc(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
transitGatewayAssociation, err := ec2DescribeTransitGatewayRouteTableAssociation(conn, transitGatewayRouteTableID, transitGatewayAttachmentID)
if isAWSErr(err, "InvalidRouteTableID.NotFound", "") {
return nil, ec2.TransitGatewayRouteTableStateDeleted, nil
}
if err != nil {
return nil, "", fmt.Errorf("error reading EC2 Transit Gateway Route Table (%s) Association for (%s): %s", transitGatewayRouteTableID, transitGatewayAttachmentID, err)
}
if transitGatewayAssociation == nil {
return nil, ec2.TransitGatewayRouteTableStateDeleted, nil
}
return transitGatewayAssociation, aws.StringValue(transitGatewayAssociation.State), nil
}
}
func ec2TransitGatewayVpcAttachmentRefreshFunc(conn *ec2.EC2, transitGatewayAttachmentID string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
transitGatewayVpcAttachment, err := ec2DescribeTransitGatewayVpcAttachment(conn, transitGatewayAttachmentID)
if isAWSErr(err, "InvalidTransitGatewayAttachmentID.NotFound", "") {
return nil, ec2.TransitGatewayAttachmentStateDeleted, nil
}
if err != nil {
return nil, "", fmt.Errorf("error reading EC2 Transit Gateway VPC Attachment (%s): %s", transitGatewayAttachmentID, err)
}
if transitGatewayVpcAttachment == nil {
return nil, ec2.TransitGatewayAttachmentStateDeleted, nil
}
return transitGatewayVpcAttachment, aws.StringValue(transitGatewayVpcAttachment.State), nil
}
}
func expandEc2TransitGatewayTagSpecifications(m map[string]interface{}) []*ec2.TagSpecification {
if len(m) == 0 {
return nil
}
return []*ec2.TagSpecification{
{
ResourceType: aws.String("transit-gateway"),
Tags: tagsFromMap(m),
},
}
}
func expandEc2TransitGatewayAttachmentTagSpecifications(m map[string]interface{}) []*ec2.TagSpecification {
if len(m) == 0 {
return nil
}
return []*ec2.TagSpecification{
{
ResourceType: aws.String("transit-gateway-attachment"),
Tags: tagsFromMap(m),
},
}
}
func expandEc2TransitGatewayRouteTableTagSpecifications(m map[string]interface{}) []*ec2.TagSpecification {
if len(m) == 0 {
return nil
}
return []*ec2.TagSpecification{
{
ResourceType: aws.String("transit-gateway-route-table"),
Tags: tagsFromMap(m),
},
}
}
func waitForEc2TransitGatewayCreation(conn *ec2.EC2, transitGatewayID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.TransitGatewayStatePending},
Target: []string{ec2.TransitGatewayStateAvailable},
Refresh: ec2TransitGatewayRefreshFunc(conn, transitGatewayID),
Timeout: 10 * time.Minute,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway (%s) availability", transitGatewayID)
_, err := stateConf.WaitForState()
return err
}
func waitForEc2TransitGatewayDeletion(conn *ec2.EC2, transitGatewayID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{
ec2.TransitGatewayStateAvailable,
ec2.TransitGatewayStateDeleting,
},
Target: []string{ec2.TransitGatewayStateDeleted},
Refresh: ec2TransitGatewayRefreshFunc(conn, transitGatewayID),
Timeout: 10 * time.Minute,
NotFoundChecks: 1,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway (%s) deletion", transitGatewayID)
_, err := stateConf.WaitForState()
if isResourceNotFoundError(err) {
return nil
}
return err
}
func waitForEc2TransitGatewayRouteTableCreation(conn *ec2.EC2, transitGatewayRouteTableID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.TransitGatewayRouteTableStatePending},
Target: []string{ec2.TransitGatewayRouteTableStateAvailable},
Refresh: ec2TransitGatewayRouteTableRefreshFunc(conn, transitGatewayRouteTableID),
Timeout: 10 * time.Minute,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway Route Table (%s) availability", transitGatewayRouteTableID)
_, err := stateConf.WaitForState()
return err
}
func waitForEc2TransitGatewayRouteTableDeletion(conn *ec2.EC2, transitGatewayRouteTableID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{
ec2.TransitGatewayRouteTableStateAvailable,
ec2.TransitGatewayRouteTableStateDeleting,
},
Target: []string{ec2.TransitGatewayRouteTableStateDeleted},
Refresh: ec2TransitGatewayRouteTableRefreshFunc(conn, transitGatewayRouteTableID),
Timeout: 10 * time.Minute,
NotFoundChecks: 1,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway Route Table (%s) deletion", transitGatewayRouteTableID)
_, err := stateConf.WaitForState()
if isResourceNotFoundError(err) {
return nil
}
return err
}
func waitForEc2TransitGatewayRouteTableAssociationCreation(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.TransitGatewayAssociationStateAssociating},
Target: []string{ec2.TransitGatewayAssociationStateAssociated},
Refresh: ec2TransitGatewayRouteTableAssociationRefreshFunc(conn, transitGatewayRouteTableID, transitGatewayAttachmentID),
Timeout: 5 * time.Minute,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway Route Table (%s) association: %s", transitGatewayRouteTableID, transitGatewayAttachmentID)
_, err := stateConf.WaitForState()
return err
}
func waitForEc2TransitGatewayRouteTableAssociationDeletion(conn *ec2.EC2, transitGatewayRouteTableID, transitGatewayAttachmentID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{
ec2.TransitGatewayAssociationStateAssociated,
ec2.TransitGatewayAssociationStateDisassociating,
},
Target: []string{""},
Refresh: ec2TransitGatewayRouteTableAssociationRefreshFunc(conn, transitGatewayRouteTableID, transitGatewayAttachmentID),
Timeout: 5 * time.Minute,
NotFoundChecks: 1,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway Route Table (%s) disassociation: %s", transitGatewayRouteTableID, transitGatewayAttachmentID)
_, err := stateConf.WaitForState()
if isResourceNotFoundError(err) {
return nil
}
return err
}
func waitForEc2TransitGatewayRouteTableAttachmentCreation(conn *ec2.EC2, transitGatewayAttachmentID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.TransitGatewayAttachmentStatePending},
Target: []string{ec2.TransitGatewayAttachmentStateAvailable},
Refresh: ec2TransitGatewayVpcAttachmentRefreshFunc(conn, transitGatewayAttachmentID),
Timeout: 10 * time.Minute,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway VPC Attachment (%s) availability", transitGatewayAttachmentID)
_, err := stateConf.WaitForState()
return err
}
func waitForEc2TransitGatewayRouteTableAttachmentDeletion(conn *ec2.EC2, transitGatewayAttachmentID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{
ec2.TransitGatewayAttachmentStateAvailable,
ec2.TransitGatewayAttachmentStateDeleting,
},
Target: []string{ec2.TransitGatewayAttachmentStateDeleted},
Refresh: ec2TransitGatewayVpcAttachmentRefreshFunc(conn, transitGatewayAttachmentID),
Timeout: 10 * time.Minute,
NotFoundChecks: 1,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway VPC Attachment (%s) deletion", transitGatewayAttachmentID)
_, err := stateConf.WaitForState()
if isResourceNotFoundError(err) {
return nil
}
return err
}
func waitForEc2TransitGatewayRouteTableAttachmentUpdate(conn *ec2.EC2, transitGatewayAttachmentID string) error {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.TransitGatewayAttachmentStateModifying},
Target: []string{ec2.TransitGatewayAttachmentStateAvailable},
Refresh: ec2TransitGatewayVpcAttachmentRefreshFunc(conn, transitGatewayAttachmentID),
Timeout: 10 * time.Minute,
}
log.Printf("[DEBUG] Waiting for EC2 Transit Gateway VPC Attachment (%s) availability", transitGatewayAttachmentID)
_, err := stateConf.WaitForState()
return err
}