terraform/builtin/providers/aws/resource_aws_vpc.go

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package aws
import (
"fmt"
"log"
"net"
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"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/helper/schema"
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)
func resourceAwsVpc() *schema.Resource {
return &schema.Resource{
Create: resourceAwsVpcCreate,
Read: resourceAwsVpcRead,
Update: resourceAwsVpcUpdate,
Delete: resourceAwsVpcDelete,
Schema: map[string]*schema.Schema{
"cidr_block": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
_, ipnet, err := net.ParseCIDR(value)
if err != nil || ipnet == nil || value != ipnet.String() {
errors = append(errors, fmt.Errorf(
"%q must contain a valid CIDR", k))
}
return
},
},
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"instance_tenancy": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"enable_dns_hostnames": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"enable_dns_support": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
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"enable_classiclink": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"main_route_table_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"default_network_acl_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"dhcp_options_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"default_security_group_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
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"tags": tagsSchema(),
},
}
}
func resourceAwsVpcCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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instance_tenancy := "default"
if v, ok := d.GetOk("instance_tenancy"); ok {
instance_tenancy = v.(string)
}
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// Create the VPC
createOpts := &ec2.CreateVpcInput{
CidrBlock: aws.String(d.Get("cidr_block").(string)),
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InstanceTenancy: aws.String(instance_tenancy),
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}
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log.Printf("[DEBUG] VPC create config: %#v", *createOpts)
vpcResp, err := conn.CreateVpc(createOpts)
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if err != nil {
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return fmt.Errorf("Error creating VPC: %s", err)
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}
// Get the ID and store it
vpc := vpcResp.Vpc
d.SetId(*vpc.VpcId)
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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")
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// Wait for the VPC to become available
log.Printf(
"[DEBUG] Waiting for VPC (%s) to become available",
d.Id())
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stateConf := &resource.StateChangeConf{
Pending: []string{"pending"},
Target: []string{"available"},
Refresh: VPCStateRefreshFunc(conn, d.Id()),
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Timeout: 10 * time.Minute,
}
if _, err := stateConf.WaitForState(); err != nil {
return fmt.Errorf(
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"Error waiting for VPC (%s) to become available: %s",
d.Id(), err)
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}
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// Update our attributes and return
return resourceAwsVpcUpdate(d, meta)
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}
func resourceAwsVpcRead(d *schema.ResourceData, meta interface{}) error {
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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)
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vpcid := d.Id()
d.Set("cidr_block", vpc.CidrBlock)
d.Set("dhcp_options_id", vpc.DhcpOptionsId)
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// Tags
d.Set("tags", tagsToMap(vpc.Tags))
// Attributes
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attribute := "enableDnsSupport"
DescribeAttrOpts := &ec2.DescribeVpcAttributeInput{
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Attribute: aws.String(attribute),
VpcId: aws.String(vpcid),
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}
resp, err := conn.DescribeVpcAttribute(DescribeAttrOpts)
if err != nil {
return err
}
d.Set("enable_dns_support", *resp.EnableDnsSupport)
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attribute = "enableDnsHostnames"
DescribeAttrOpts = &ec2.DescribeVpcAttributeInput{
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Attribute: &attribute,
VpcId: &vpcid,
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}
resp, err = conn.DescribeVpcAttribute(DescribeAttrOpts)
if err != nil {
return err
}
d.Set("enable_dns_hostnames", *resp.EnableDnsHostnames)
DescribeClassiclinkOpts := &ec2.DescribeVpcClassicLinkInput{
VpcIds: []*string{&vpcid},
}
respClassiclink, err := conn.DescribeVpcClassicLink(DescribeClassiclinkOpts)
if err != nil {
return err
}
classiclink_enabled := false
for _, v := range respClassiclink.Vpcs {
if *v.VpcId == vpcid {
classiclink_enabled = *v.ClassicLinkEnabled
break
}
}
d.Set("enable_classiclink", classiclink_enabled)
// Get the main routing table for this VPC
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// Really Ugly need to make this better - rmenn
filter1 := &ec2.Filter{
Name: aws.String("association.main"),
Values: []*string{aws.String("true")},
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}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
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}
DescribeRouteOpts := &ec2.DescribeRouteTablesInput{
Filters: []*ec2.Filter{filter1, filter2},
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}
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)
}
resourceAwsVpcSetDefaultNetworkAcl(conn, d)
resourceAwsVpcSetDefaultSecurityGroup(conn, d)
return nil
}
func resourceAwsVpcUpdate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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// Turn on partial mode
d.Partial(true)
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vpcid := d.Id()
if d.HasChange("enable_dns_hostnames") {
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val := d.Get("enable_dns_hostnames").(bool)
modifyOpts := &ec2.ModifyVpcAttributeInput{
VpcId: &vpcid,
EnableDnsHostnames: &ec2.AttributeBooleanValue{
Value: &val,
},
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}
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log.Printf(
"[INFO] Modifying enable_dns_support vpc attribute for %s: %#v",
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d.Id(), modifyOpts)
if _, err := conn.ModifyVpcAttribute(modifyOpts); err != nil {
return err
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}
d.SetPartial("enable_dns_support")
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}
if d.HasChange("enable_dns_support") {
val := d.Get("enable_dns_support").(bool)
modifyOpts := &ec2.ModifyVpcAttributeInput{
VpcId: &vpcid,
EnableDnsSupport: &ec2.AttributeBooleanValue{
Value: &val,
},
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}
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log.Printf(
"[INFO] Modifying enable_dns_support vpc attribute for %s: %#v",
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d.Id(), modifyOpts)
if _, err := conn.ModifyVpcAttribute(modifyOpts); err != nil {
return err
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}
d.SetPartial("enable_dns_support")
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}
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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 err := setTags(conn, d); err != nil {
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return err
} else {
d.SetPartial("tags")
}
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d.Partial(false)
return resourceAwsVpcRead(d, meta)
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}
func resourceAwsVpcDelete(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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vpcID := d.Id()
DeleteVpcOpts := &ec2.DeleteVpcInput{
VpcId: &vpcID,
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}
log.Printf("[INFO] Deleting VPC: %s", d.Id())
return resource.Retry(5*time.Minute, func() error {
_, err := conn.DeleteVpc(DeleteVpcOpts)
if err == nil {
return nil
}
ec2err, ok := err.(awserr.Error)
if !ok {
return &resource.RetryError{Err: err}
}
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switch ec2err.Code() {
case "InvalidVpcID.NotFound":
return nil
case "DependencyViolation":
return err
}
return &resource.RetryError{
Err: fmt.Errorf("Error deleting VPC: %s", err),
}
})
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}
// 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)},
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}
resp, err := conn.DescribeVpcs(DescribeVpcOpts)
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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
}
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}
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]
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return vpc, *vpc.State, nil
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}
}
func resourceAwsVpcSetDefaultNetworkAcl(conn *ec2.EC2, d *schema.ResourceData) error {
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filter1 := &ec2.Filter{
Name: aws.String("default"),
Values: []*string{aws.String("true")},
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}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
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}
DescribeNetworkACLOpts := &ec2.DescribeNetworkAclsInput{
Filters: []*ec2.Filter{filter1, filter2},
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}
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 {
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filter1 := &ec2.Filter{
Name: aws.String("group-name"),
Values: []*string{aws.String("default")},
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}
filter2 := &ec2.Filter{
Name: aws.String("vpc-id"),
Values: []*string{aws.String(d.Id())},
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}
DescribeSgOpts := &ec2.DescribeSecurityGroupsInput{
Filters: []*ec2.Filter{filter1, filter2},
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}
securityGroupResp, err := conn.DescribeSecurityGroups(DescribeSgOpts)
if err != nil {
return err
}
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if v := securityGroupResp.SecurityGroups; len(v) > 0 {
d.Set("default_security_group_id", v[0].GroupId)
}
return nil
}