terraform/builtin/providers/aws/resource_aws_vpc.go

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package aws
import (
"fmt"
"log"
"time"
"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/helper/schema"
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"github.com/mitchellh/goamz/ec2"
)
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,
},
"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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"main_route_table_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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p := meta.(*ResourceProvider)
ec2conn := p.ec2conn
// Create the VPC
createOpts := &ec2.CreateVpc{
CidrBlock: d.Get("cidr_block").(string),
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}
log.Printf("[DEBUG] VPC create config: %#v", createOpts)
vpcResp, err := ec2conn.CreateVpc(createOpts)
if err != nil {
return fmt.Errorf("Error creating VPC: %s", err)
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}
// Get the ID and store it
vpc := &vpcResp.VPC
log.Printf("[INFO] VPC ID: %s", vpc.VpcId)
d.SetId(vpc.VpcId)
// 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: "available",
Refresh: VPCStateRefreshFunc(ec2conn, 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 resourceAwsVpcUpdate(d *schema.ResourceData, meta interface{}) error {
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p := meta.(*ResourceProvider)
ec2conn := p.ec2conn
// Turn on partial mode
d.Partial(true)
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if d.HasChange("enable_dns_hostnames") {
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options := new(ec2.ModifyVpcAttribute)
options.EnableDnsHostnames = d.Get("enable_dns_hostnames").(bool)
options.SetEnableDnsHostnames = true
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log.Printf(
"[INFO] Modifying enable_dns_hostnames vpc attribute for %s: %#v",
d.Id(), options)
if _, err := ec2conn.ModifyVpcAttribute(d.Id(), options); err != nil {
return err
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}
d.SetPartial("enable_dns_hostnames")
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}
if d.HasChange("enable_dns_support") {
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options := new(ec2.ModifyVpcAttribute)
options.EnableDnsSupport = d.Get("enable_dns_support").(bool)
options.SetEnableDnsSupport = true
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log.Printf(
"[INFO] Modifying enable_dns_support vpc attribute for %s: %#v",
d.Id(), options)
if _, err := ec2conn.ModifyVpcAttribute(d.Id(), options); err != nil {
return err
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}
d.SetPartial("enable_dns_support")
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}
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if err := setTags(ec2conn, d); err != nil {
return err
} else {
d.SetPartial("tags")
}
d.Partial(false)
return resourceAwsVpcRead(d, meta)
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}
func resourceAwsVpcDelete(d *schema.ResourceData, meta interface{}) error {
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p := meta.(*ResourceProvider)
ec2conn := p.ec2conn
log.Printf("[INFO] Deleting VPC: %s", d.Id())
if _, err := ec2conn.DeleteVpc(d.Id()); err != nil {
ec2err, ok := err.(*ec2.Error)
if ok && ec2err.Code == "InvalidVpcID.NotFound" {
return nil
}
return fmt.Errorf("Error deleting VPC: %s", err)
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}
return nil
}
func resourceAwsVpcRead(d *schema.ResourceData, meta interface{}) error {
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p := meta.(*ResourceProvider)
ec2conn := p.ec2conn
// Refresh the VPC state
vpcRaw, _, err := VPCStateRefreshFunc(ec2conn, d.Id())()
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if err != nil {
return err
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}
if vpcRaw == nil {
return nil
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}
// VPC stuff
vpc := vpcRaw.(*ec2.VPC)
d.Set("cidr_block", vpc.CidrBlock)
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// Tags
d.Set("tags", tagsToMap(vpc.Tags))
// Attributes
resp, err := ec2conn.VpcAttribute(d.Id(), "enableDnsSupport")
if err != nil {
return err
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}
d.Set("enable_dns_support", resp.EnableDnsSupport)
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resp, err = ec2conn.VpcAttribute(d.Id(), "enableDnsHostnames")
if err != nil {
return err
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}
d.Set("enable_dns_hostnames", resp.EnableDnsHostnames)
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// Get the main routing table for this VPC
filter := ec2.NewFilter()
filter.Add("association.main", "true")
filter.Add("vpc-id", d.Id())
routeResp, err := ec2conn.DescribeRouteTables(nil, filter)
if err != nil {
return err
}
if v := routeResp.RouteTables; len(v) > 0 {
d.Set("main_route_table_id", v[0].RouteTableId)
}
return nil
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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) {
resp, err := conn.DescribeVpcs([]string{id}, ec2.NewFilter())
if err != nil {
if ec2err, ok := err.(*ec2.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]
return vpc, vpc.State, nil
}
}