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resource_aws_vpc.go
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resource_aws_vpc.go
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package aws
import (
"fmt"
"log"
"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 resourceAwsVpc() *schema.Resource {
return &schema.Resource{
Create: resourceAwsVpcCreate,
Read: resourceAwsVpcRead,
Update: resourceAwsVpcUpdate,
Delete: resourceAwsVpcDelete,
Importer: &schema.ResourceImporter{
State: resourceAwsVpcInstanceImport,
},
SchemaVersion: 1,
MigrateState: resourceAwsVpcMigrateState,
Schema: map[string]*schema.Schema{
"cidr_block": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validateCIDRNetworkAddress,
},
"instance_tenancy": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
},
"enable_dns_hostnames": {
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"enable_dns_support": {
Type: schema.TypeBool,
Optional: true,
Default: true,
},
"enable_classiclink": {
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"enable_classiclink_dns_support": {
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"assign_generated_ipv6_cidr_block": {
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"main_route_table_id": {
Type: schema.TypeString,
Computed: true,
},
"default_network_acl_id": {
Type: schema.TypeString,
Computed: true,
},
"dhcp_options_id": {
Type: schema.TypeString,
Computed: true,
},
"default_security_group_id": {
Type: schema.TypeString,
Computed: true,
},
"default_route_table_id": {
Type: schema.TypeString,
Computed: true,
},
"ipv6_association_id": {
Type: schema.TypeString,
Computed: true,
},
"ipv6_cidr_block": {
Type: schema.TypeString,
Computed: true,
},
"tags": tagsSchema(),
},
}
}
func resourceAwsVpcCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
instance_tenancy := "default"
if v, ok := d.GetOk("instance_tenancy"); ok {
instance_tenancy = v.(string)
}
// Create the VPC
createOpts := &ec2.CreateVpcInput{
CidrBlock: aws.String(d.Get("cidr_block").(string)),
InstanceTenancy: aws.String(instance_tenancy),
AmazonProvidedIpv6CidrBlock: aws.Bool(d.Get("assign_generated_ipv6_cidr_block").(bool)),
}
log.Printf("[DEBUG] VPC create config: %#v", *createOpts)
vpcResp, err := conn.CreateVpc(createOpts)
if err != nil {
return fmt.Errorf("Error creating VPC: %s", err)
}
// Get the ID and store it
vpc := vpcResp.Vpc
d.SetId(*vpc.VpcId)
log.Printf("[INFO] VPC ID: %s", d.Id())
// Set partial mode and say that we setup the cidr block
d.Partial(true)
d.SetPartial("cidr_block")
// Wait for the VPC to become available
log.Printf(
"[DEBUG] Waiting for VPC (%s) to become available",
d.Id())
stateConf := &resource.StateChangeConf{
Pending: []string{"pending"},
Target: []string{"available"},
Refresh: VPCStateRefreshFunc(conn, d.Id()),
Timeout: 10 * time.Minute,
}
if _, err := stateConf.WaitForState(); err != nil {
return fmt.Errorf(
"Error waiting for VPC (%s) to become available: %s",
d.Id(), err)
}
// Update our attributes and return
return resourceAwsVpcUpdate(d, meta)
}
func resourceAwsVpcRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
// Refresh the VPC state
vpcRaw, _, err := VPCStateRefreshFunc(conn, d.Id())()
if err != nil {
return err
}
if vpcRaw == nil {
d.SetId("")
return nil
}
// VPC stuff
vpc := vpcRaw.(*ec2.Vpc)
vpcid := d.Id()
d.Set("cidr_block", vpc.CidrBlock)
d.Set("dhcp_options_id", vpc.DhcpOptionsId)
d.Set("instance_tenancy", vpc.InstanceTenancy)
// Tags
d.Set("tags", tagsToMap(vpc.Tags))
for _, a := range vpc.Ipv6CidrBlockAssociationSet {
if *a.Ipv6CidrBlockState.State == "associated" { //we can only ever have 1 IPv6 block associated at once
d.Set("assign_generated_ipv6_cidr_block", true)
d.Set("ipv6_association_id", a.AssociationId)
d.Set("ipv6_cidr_block", a.Ipv6CidrBlock)
} else {
d.Set("assign_generated_ipv6_cidr_block", false)
d.Set("ipv6_association_id", "") // we blank these out to remove old entries
d.Set("ipv6_cidr_block", "")
}
}
// Attributes
attribute := "enableDnsSupport"
describeAttrOpts := &ec2.DescribeVpcAttributeInput{
Attribute: aws.String(attribute),
VpcId: aws.String(vpcid),
}
resp, err := conn.DescribeVpcAttribute(describeAttrOpts)
if err != nil {
return err
}
d.Set("enable_dns_support", *resp.EnableDnsSupport.Value)
attribute = "enableDnsHostnames"
describeAttrOpts = &ec2.DescribeVpcAttributeInput{
Attribute: &attribute,
VpcId: &vpcid,
}
resp, err = conn.DescribeVpcAttribute(describeAttrOpts)
if err != nil {
return err
}
d.Set("enable_dns_hostnames", *resp.EnableDnsHostnames.Value)
describeClassiclinkOpts := &ec2.DescribeVpcClassicLinkInput{
VpcIds: []*string{&vpcid},
}
// Classic Link is only available in regions that support EC2 Classic
respClassiclink, err := conn.DescribeVpcClassicLink(describeClassiclinkOpts)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "UnsupportedOperation" {
log.Printf("[WARN] VPC Classic Link is not supported in this region")
} else {
return err
}
} else {
classiclink_enabled := false
for _, v := range respClassiclink.Vpcs {
if *v.VpcId == vpcid {
if v.ClassicLinkEnabled != nil {
classiclink_enabled = *v.ClassicLinkEnabled
}
break
}
}
d.Set("enable_classiclink", classiclink_enabled)
}
describeClassiclinkDnsOpts := &ec2.DescribeVpcClassicLinkDnsSupportInput{
VpcIds: []*string{&vpcid},
}
respClassiclinkDnsSupport, err := conn.DescribeVpcClassicLinkDnsSupport(describeClassiclinkDnsOpts)
if err != nil {
if isAWSErr(err, "UnsupportedOperation", "The functionality you requested is not available in this region") ||
isAWSErr(err, "AuthFailure", "This request has been administratively disabled") {
log.Printf("[WARN] VPC Classic Link DNS Support is not supported in this region")
} else {
return err
}
} else {
classiclinkdns_enabled := false
for _, v := range respClassiclinkDnsSupport.Vpcs {
if *v.VpcId == vpcid {
if v.ClassicLinkDnsSupported != nil {
classiclinkdns_enabled = *v.ClassicLinkDnsSupported
}
break
}
}
d.Set("enable_classiclink_dns_support", classiclinkdns_enabled)
}
// Get the main routing table for this VPC
// Really Ugly need to make this better - rmenn
filter1 := &ec2.Filter{
Name: aws.String("association.main"),
Values: []*string{aws.String("true")},
}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
}
describeRouteOpts := &ec2.DescribeRouteTablesInput{
Filters: []*ec2.Filter{filter1, filter2},
}
routeResp, err := conn.DescribeRouteTables(describeRouteOpts)
if err != nil {
return err
}
if v := routeResp.RouteTables; len(v) > 0 {
d.Set("main_route_table_id", *v[0].RouteTableId)
}
if err := resourceAwsVpcSetDefaultNetworkAcl(conn, d); err != nil {
log.Printf("[WARN] Unable to set Default Network ACL: %s", err)
}
if err := resourceAwsVpcSetDefaultSecurityGroup(conn, d); err != nil {
log.Printf("[WARN] Unable to set Default Security Group: %s", err)
}
if err := resourceAwsVpcSetDefaultRouteTable(conn, d); err != nil {
log.Printf("[WARN] Unable to set Default Route Table: %s", err)
}
return nil
}
func resourceAwsVpcUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
// Turn on partial mode
d.Partial(true)
vpcid := d.Id()
if d.HasChange("enable_dns_hostnames") {
val := d.Get("enable_dns_hostnames").(bool)
modifyOpts := &ec2.ModifyVpcAttributeInput{
VpcId: &vpcid,
EnableDnsHostnames: &ec2.AttributeBooleanValue{
Value: &val,
},
}
log.Printf(
"[INFO] Modifying enable_dns_hostnames vpc attribute for %s: %s",
d.Id(), modifyOpts)
if _, err := conn.ModifyVpcAttribute(modifyOpts); err != nil {
return err
}
d.SetPartial("enable_dns_hostnames")
}
_, hasEnableDnsSupportOption := d.GetOk("enable_dns_support")
if !hasEnableDnsSupportOption || d.HasChange("enable_dns_support") {
val := d.Get("enable_dns_support").(bool)
modifyOpts := &ec2.ModifyVpcAttributeInput{
VpcId: &vpcid,
EnableDnsSupport: &ec2.AttributeBooleanValue{
Value: &val,
},
}
log.Printf(
"[INFO] Modifying enable_dns_support vpc attribute for %s: %s",
d.Id(), modifyOpts)
if _, err := conn.ModifyVpcAttribute(modifyOpts); err != nil {
return err
}
d.SetPartial("enable_dns_support")
}
if d.HasChange("enable_classiclink") {
val := d.Get("enable_classiclink").(bool)
if val {
modifyOpts := &ec2.EnableVpcClassicLinkInput{
VpcId: &vpcid,
}
log.Printf(
"[INFO] Modifying enable_classiclink vpc attribute for %s: %#v",
d.Id(), modifyOpts)
if _, err := conn.EnableVpcClassicLink(modifyOpts); err != nil {
return err
}
} else {
modifyOpts := &ec2.DisableVpcClassicLinkInput{
VpcId: &vpcid,
}
log.Printf(
"[INFO] Modifying enable_classiclink vpc attribute for %s: %#v",
d.Id(), modifyOpts)
if _, err := conn.DisableVpcClassicLink(modifyOpts); err != nil {
return err
}
}
d.SetPartial("enable_classiclink")
}
if d.HasChange("enable_classiclink_dns_support") {
val := d.Get("enable_classiclink_dns_support").(bool)
if val {
modifyOpts := &ec2.EnableVpcClassicLinkDnsSupportInput{
VpcId: &vpcid,
}
log.Printf(
"[INFO] Modifying enable_classiclink_dns_support vpc attribute for %s: %#v",
d.Id(), modifyOpts)
if _, err := conn.EnableVpcClassicLinkDnsSupport(modifyOpts); err != nil {
return err
}
} else {
modifyOpts := &ec2.DisableVpcClassicLinkDnsSupportInput{
VpcId: &vpcid,
}
log.Printf(
"[INFO] Modifying enable_classiclink_dns_support vpc attribute for %s: %#v",
d.Id(), modifyOpts)
if _, err := conn.DisableVpcClassicLinkDnsSupport(modifyOpts); err != nil {
return err
}
}
d.SetPartial("enable_classiclink_dns_support")
}
if d.HasChange("assign_generated_ipv6_cidr_block") && !d.IsNewResource() {
toAssign := d.Get("assign_generated_ipv6_cidr_block").(bool)
log.Printf("[INFO] Modifying assign_generated_ipv6_cidr_block to %#v", toAssign)
if toAssign {
modifyOpts := &ec2.AssociateVpcCidrBlockInput{
VpcId: &vpcid,
AmazonProvidedIpv6CidrBlock: aws.Bool(toAssign),
}
log.Printf("[INFO] Enabling assign_generated_ipv6_cidr_block vpc attribute for %s: %#v",
d.Id(), modifyOpts)
resp, err := conn.AssociateVpcCidrBlock(modifyOpts)
if err != nil {
return err
}
// Wait for the CIDR to become available
log.Printf(
"[DEBUG] Waiting for IPv6 CIDR (%s) to become associated",
d.Id())
stateConf := &resource.StateChangeConf{
Pending: []string{"associating", "disassociated"},
Target: []string{"associated"},
Refresh: Ipv6CidrStateRefreshFunc(conn, d.Id(), *resp.Ipv6CidrBlockAssociation.AssociationId),
Timeout: 1 * time.Minute,
}
if _, err := stateConf.WaitForState(); err != nil {
return fmt.Errorf(
"Error waiting for IPv6 CIDR (%s) to become associated: %s",
d.Id(), err)
}
} else {
modifyOpts := &ec2.DisassociateVpcCidrBlockInput{
AssociationId: aws.String(d.Get("ipv6_association_id").(string)),
}
log.Printf("[INFO] Disabling assign_generated_ipv6_cidr_block vpc attribute for %s: %#v",
d.Id(), modifyOpts)
if _, err := conn.DisassociateVpcCidrBlock(modifyOpts); err != nil {
return err
}
// Wait for the CIDR to become available
log.Printf(
"[DEBUG] Waiting for IPv6 CIDR (%s) to become disassociated",
d.Id())
stateConf := &resource.StateChangeConf{
Pending: []string{"disassociating", "associated"},
Target: []string{"disassociated"},
Refresh: Ipv6CidrStateRefreshFunc(conn, d.Id(), d.Get("ipv6_association_id").(string)),
Timeout: 1 * time.Minute,
}
if _, err := stateConf.WaitForState(); err != nil {
return fmt.Errorf(
"Error waiting for IPv6 CIDR (%s) to become disassociated: %s",
d.Id(), err)
}
}
d.SetPartial("assign_generated_ipv6_cidr_block")
}
if err := setTags(conn, d); err != nil {
return err
} else {
d.SetPartial("tags")
}
d.Partial(false)
return resourceAwsVpcRead(d, meta)
}
func resourceAwsVpcDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
vpcID := d.Id()
deleteVpcOpts := &ec2.DeleteVpcInput{
VpcId: &vpcID,
}
log.Printf("[INFO] Deleting VPC: %s", d.Id())
return resource.Retry(5*time.Minute, func() *resource.RetryError {
_, err := conn.DeleteVpc(deleteVpcOpts)
if err == nil {
return nil
}
ec2err, ok := err.(awserr.Error)
if !ok {
return resource.NonRetryableError(err)
}
switch ec2err.Code() {
case "InvalidVpcID.NotFound":
return nil
case "DependencyViolation":
return resource.RetryableError(err)
}
return resource.NonRetryableError(fmt.Errorf("Error deleting VPC: %s", err))
})
}
// VPCStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// a VPC.
func VPCStateRefreshFunc(conn *ec2.EC2, id string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
describeVpcOpts := &ec2.DescribeVpcsInput{
VpcIds: []*string{aws.String(id)},
}
resp, err := conn.DescribeVpcs(describeVpcOpts)
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidVpcID.NotFound" {
resp = nil
} else {
log.Printf("Error on VPCStateRefresh: %s", err)
return nil, "", err
}
}
if resp == nil {
// Sometimes AWS just has consistency issues and doesn't see
// our instance yet. Return an empty state.
return nil, "", nil
}
vpc := resp.Vpcs[0]
return vpc, *vpc.State, nil
}
}
func Ipv6CidrStateRefreshFunc(conn *ec2.EC2, id string, associationId string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
describeVpcOpts := &ec2.DescribeVpcsInput{
VpcIds: []*string{aws.String(id)},
}
resp, err := conn.DescribeVpcs(describeVpcOpts)
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidVpcID.NotFound" {
resp = nil
} else {
log.Printf("Error on VPCStateRefresh: %s", err)
return nil, "", err
}
}
if resp == nil {
// Sometimes AWS just has consistency issues and doesn't see
// our instance yet. Return an empty state.
return nil, "", nil
}
if resp.Vpcs[0].Ipv6CidrBlockAssociationSet == nil {
return nil, "", nil
}
for _, association := range resp.Vpcs[0].Ipv6CidrBlockAssociationSet {
if *association.AssociationId == associationId {
return association, *association.Ipv6CidrBlockState.State, nil
}
}
return nil, "", nil
}
}
func resourceAwsVpcSetDefaultNetworkAcl(conn *ec2.EC2, d *schema.ResourceData) error {
filter1 := &ec2.Filter{
Name: aws.String("default"),
Values: []*string{aws.String("true")},
}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
}
describeNetworkACLOpts := &ec2.DescribeNetworkAclsInput{
Filters: []*ec2.Filter{filter1, filter2},
}
networkAclResp, err := conn.DescribeNetworkAcls(describeNetworkACLOpts)
if err != nil {
return err
}
if v := networkAclResp.NetworkAcls; len(v) > 0 {
d.Set("default_network_acl_id", v[0].NetworkAclId)
}
return nil
}
func resourceAwsVpcSetDefaultSecurityGroup(conn *ec2.EC2, d *schema.ResourceData) error {
filter1 := &ec2.Filter{
Name: aws.String("group-name"),
Values: []*string{aws.String("default")},
}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
}
describeSgOpts := &ec2.DescribeSecurityGroupsInput{
Filters: []*ec2.Filter{filter1, filter2},
}
securityGroupResp, err := conn.DescribeSecurityGroups(describeSgOpts)
if err != nil {
return err
}
if v := securityGroupResp.SecurityGroups; len(v) > 0 {
d.Set("default_security_group_id", v[0].GroupId)
}
return nil
}
func resourceAwsVpcSetDefaultRouteTable(conn *ec2.EC2, d *schema.ResourceData) error {
filter1 := &ec2.Filter{
Name: aws.String("association.main"),
Values: []*string{aws.String("true")},
}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
}
findOpts := &ec2.DescribeRouteTablesInput{
Filters: []*ec2.Filter{filter1, filter2},
}
resp, err := conn.DescribeRouteTables(findOpts)
if err != nil {
return err
}
if len(resp.RouteTables) < 1 || resp.RouteTables[0] == nil {
return fmt.Errorf("Default Route table not found")
}
// There Can Be Only 1 ... Default Route Table
d.Set("default_route_table_id", resp.RouteTables[0].RouteTableId)
return nil
}
func resourceAwsVpcInstanceImport(
d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
d.Set("assign_generated_ipv6_cidr_block", false)
return []*schema.ResourceData{d}, nil
}