mirror of https://github.com/hashicorp/terraform
Kit Ewbank
9 years ago
parent
d2eaa6f8e0
commit
2ed7297fa3
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package aws
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import (
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"log"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceAwsDefaultVpc() *schema.Resource {
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// reuse aws_vpc schema, and methods for READ, UPDATE
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dvpc := resourceAwsVpc()
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dvpc.Create = resourceAwsDefaultVpcCreate
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dvpc.Delete = resourceAwsDefaultVpcDelete
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// cidr_block is a computed value for Default VPCs
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dvpc.Schema["cidr_block"] = &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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}
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// instance_tenancy is a computed value for Default VPCs
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dvpc.Schema["instance_tenancy"] = &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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}
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// assign_generated_ipv6_cidr_block is a computed value for Default VPCs
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dvpc.Schema["assign_generated_ipv6_cidr_block"] = &schema.Schema{
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Type: schema.TypeBool,
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Computed: true,
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}
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return dvpc
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}
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func resourceAwsDefaultVpcCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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req := &ec2.DescribeVpcsInput{
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Filters: []*ec2.Filter{
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&ec2.Filter{
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Name: aws.String("isDefault"),
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Values: aws.StringSlice([]string{"true"}),
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},
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},
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}
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resp, err := conn.DescribeVpcs(req)
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if err != nil {
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return err
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}
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d.SetId(aws.StringValue(resp.Vpcs[0].VpcId))
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return resourceAwsVpcUpdate(d, meta)
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}
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func resourceAwsDefaultVpcDelete(d *schema.ResourceData, meta interface{}) error {
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log.Printf("[WARN] Cannot destroy Default VPC. Terraform will remove this resource from the state file, however resources may remain.")
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d.SetId("")
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return nil
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}
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@ -0,0 +1,58 @@
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// make testacc TEST=./builtin/providers/aws/ TESTARGS='-run=TestAccAWSDefaultVpc_'
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package aws
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import (
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"testing"
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"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/terraform"
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)
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func TestAccAWSDefaultVpc_basic(t *testing.T) {
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var vpc ec2.Vpc
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckAWSDefaultVpcDestroy,
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Steps: []resource.TestStep{
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{
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Config: testAccAWSDefaultVpcConfigBasic,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckVpcExists("aws_default_vpc.foo", &vpc),
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testAccCheckVpcCidr(&vpc, "172.31.0.0/16"),
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resource.TestCheckResourceAttr(
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"aws_default_vpc.foo", "cidr_block", "172.31.0.0/16"),
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resource.TestCheckResourceAttr(
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"aws_default_vpc.foo", "tags.%", "1"),
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resource.TestCheckResourceAttr(
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"aws_default_vpc.foo", "tags.Name", "Default VPC"),
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resource.TestCheckNoResourceAttr(
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"aws_default_vpc.foo", "assign_generated_ipv6_cidr_block"),
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resource.TestCheckNoResourceAttr(
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"aws_default_vpc.foo", "ipv6_association_id"),
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resource.TestCheckNoResourceAttr(
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"aws_default_vpc.foo", "ipv6_cidr_block"),
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),
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},
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},
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})
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}
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func testAccCheckAWSDefaultVpcDestroy(s *terraform.State) error {
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// We expect VPC to still exist
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return nil
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}
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const testAccAWSDefaultVpcConfigBasic = `
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provider "aws" {
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region = "us-west-2"
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}
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resource "aws_default_vpc" "foo" {
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tags {
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Name = "Default VPC"
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}
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}
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`
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@ -0,0 +1,76 @@
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---
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layout: "aws"
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page_title: "AWS: aws_default_vpc"
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sidebar_current: "docs-aws-resource-default-vpc"
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description: |-
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Manage the default VPC resource.
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---
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# aws\_default\_vpc
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Provides a resource to manage the [default AWS VPC](http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/default-vpc.html)
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in the current region.
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For AWS accounts created after 2013-12-04, each region comes with a Default VPC.
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**This is an advanced resource**, and has special caveats to be aware of when
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using it. Please read this document in its entirety before using this resource.
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The `aws_default_vpc` behaves differently from normal resources, in that
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Terraform does not _create_ this resource, but instead "adopts" it
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into management.
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## Example Usage
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Basic usage with tags:
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```
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resource "aws_default_vpc" "default" {
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tags {
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Name = "Default VPC"
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}
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}
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```
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## Argument Reference
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The arguments of an `aws_default_vpc` differ slightly from `aws_vpc`
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resources. Namely, the `cidr_block`, `instance_tenancy` and `assign_generated_ipv6_cidr_block`
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arguments are computed. The following arguments are still supported:
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* `enable_dns_support` - (Optional) A boolean flag to enable/disable DNS support in the VPC. Defaults true.
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* `enable_dns_hostnames` - (Optional) A boolean flag to enable/disable DNS hostnames in the VPC. Defaults false.
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* `enable_classiclink` - (Optional) A boolean flag to enable/disable ClassicLink
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for the VPC. Only valid in regions and accounts that support EC2 Classic.
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See the [ClassicLink documentation][1] for more information. Defaults false.
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* `tags` - (Optional) A mapping of tags to assign to the resource.
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### Removing `aws_default_vpc` from your configuration
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The `aws_default_vpc` resource allows you to manage a region's default VPC,
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but Terraform cannot destroy it. Removing this resource from your configuration
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will remove it from your statefile and management, but will not destroy the VPC.
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You can resume managing the VPC via the AWS Console.
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## Attributes Reference
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The following attributes are exported:
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* `id` - The ID of the VPC
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* `cidr_block` - The CIDR block of the VPC
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* `instance_tenancy` - Tenancy of instances spin up within VPC.
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* `enable_dns_support` - Whether or not the VPC has DNS support
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* `enable_dns_hostnames` - Whether or not the VPC has DNS hostname support
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* `enable_classiclink` - Whether or not the VPC has Classiclink enabled
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* `assign_generated_ipv6_cidr_block` - Whether or not an Amazon-provided IPv6 CIDR
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block with a /56 prefix length for the VPC was assigned
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* `main_route_table_id` - The ID of the main route table associated with
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this VPC. Note that you can change a VPC's main route table by using an
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[`aws_main_route_table_association`](/docs/providers/aws/r/main_route_table_assoc.html)
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* `default_network_acl_id` - The ID of the network ACL created by default on VPC creation
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* `default_security_group_id` - The ID of the security group created by default on VPC creation
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* `default_route_table_id` - The ID of the route table created by default on VPC creation
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* `ipv6_association_id` - The association ID for the IPv6 CIDR block of the VPC
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* `ipv6_cidr_block` - The IPv6 CIDR block of the VPC
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[1]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/vpc-classiclink.html
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