From e51bdc92fa6f41d8a824a404f40732470d646432 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Mon, 7 Jul 2014 12:16:58 -0700
Subject: [PATCH] providers/aws: aws_vpc

---
 builtin/providers/aws/resource_aws_vpc.go | 142 ++++++++++++++++++++++
 builtin/providers/aws/resources.go        |   7 ++
 2 files changed, 149 insertions(+)
 create mode 100644 builtin/providers/aws/resource_aws_vpc.go

diff --git a/builtin/providers/aws/resource_aws_vpc.go b/builtin/providers/aws/resource_aws_vpc.go
new file mode 100644
index 000000000..4b60427e5
--- /dev/null
+++ b/builtin/providers/aws/resource_aws_vpc.go
@@ -0,0 +1,142 @@
+package aws
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/hashicorp/terraform/helper/diff"
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+	"github.com/mitchellh/goamz/ec2"
+)
+
+func resource_aws_vpc_create(
+	s *terraform.ResourceState,
+	d *terraform.ResourceDiff,
+	meta interface{}) (*terraform.ResourceState, error) {
+	p := meta.(*ResourceProvider)
+	ec2conn := p.ec2conn
+
+	// Merge the diff so that we have all the proper attributes
+	s = s.MergeDiff(d)
+
+	// Create the VPC
+	createOpts := &ec2.CreateVpc{
+		CidrBlock: s.Attributes["cidr_block"],
+	}
+	log.Printf("[DEBUG] VPC create config: %#v", createOpts)
+	vpcResp, err := ec2conn.CreateVpc(createOpts)
+	if err != nil {
+		return nil, fmt.Errorf("Error creating VPC: %s", err)
+	}
+
+	// Get the ID and store it
+	vpc := &vpcResp.VPC
+	log.Printf("[INFO] VPC ID: %s", vpc.VPCID)
+	s.ID = vpc.VPCID
+
+	// Wait for the VPC to become available
+	log.Printf(
+		"[DEBUG] Waiting for VPC (%s) to become available",
+		s.ID)
+	stateConf := &resource.StateChangeConf{
+		Pending: []string{"pending"},
+		Target:  "available",
+		Refresh: VPCStateRefreshFunc(ec2conn, s.ID),
+		Timeout: 10 * time.Minute,
+	}
+	vpcRaw, err := stateConf.WaitForState()
+	if err != nil {
+		return s, fmt.Errorf(
+			"Error waiting for VPC (%s) to become available: %s",
+			s.ID, err)
+	}
+
+	// Update our attributes and return
+	return resource_aws_vpc_update_state(s, vpcRaw.(*ec2.VPC))
+}
+
+func resource_aws_vpc_update(
+	s *terraform.ResourceState,
+	d *terraform.ResourceDiff,
+	meta interface{}) (*terraform.ResourceState, error) {
+	// This should never be called because we have no update-able
+	// attributes
+	panic("Update for VPC is not supported")
+
+	return nil, nil
+}
+
+func resource_aws_vpc_destroy(
+	s *terraform.ResourceState,
+	meta interface{}) error {
+	p := meta.(*ResourceProvider)
+	ec2conn := p.ec2conn
+
+	log.Printf("[INFO] Deleting VPC: %s", s.ID)
+	if _, err := ec2conn.DeleteVpc(s.ID); err != nil {
+		return fmt.Errorf("Error deleting ELB: %s", err)
+	}
+
+	return nil
+}
+
+func resource_aws_vpc_refresh(
+	s *terraform.ResourceState,
+	meta interface{}) (*terraform.ResourceState, error) {
+	p := meta.(*ResourceProvider)
+	ec2conn := p.ec2conn
+
+	vpcRaw, _, err := VPCStateRefreshFunc(ec2conn, s.ID)()
+	if err != nil {
+		return s, err
+	}
+	if vpcRaw == nil {
+		return nil, nil
+	}
+
+	vpc := vpcRaw.(*ec2.VPC)
+	return resource_aws_vpc_update_state(s, vpc)
+}
+
+func resource_aws_vpc_diff(
+	s *terraform.ResourceState,
+	c *terraform.ResourceConfig,
+	meta interface{}) (*terraform.ResourceDiff, error) {
+	b := &diff.ResourceBuilder{
+		Attrs: map[string]diff.AttrType{
+			"cidr_block": diff.AttrTypeCreate,
+		},
+	}
+
+	return b.Diff(s, c)
+}
+
+func resource_aws_vpc_update_state(
+	s *terraform.ResourceState,
+	vpc *ec2.VPC) (*terraform.ResourceState, error) {
+	s.Attributes["cidr_block"] = vpc.CidrBlock
+	return s, nil
+}
+
+// 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 {
+			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
+	}
+}
diff --git a/builtin/providers/aws/resources.go b/builtin/providers/aws/resources.go
index 6a4a83067..66815126e 100644
--- a/builtin/providers/aws/resources.go
+++ b/builtin/providers/aws/resources.go
@@ -25,6 +25,13 @@ func init() {
 				Diff:    resource_aws_instance_diff,
 				Refresh: resource_aws_instance_refresh,
 			},
+
+			"aws_vpc": resource.Resource{
+				Create:  resource_aws_vpc_create,
+				Destroy: resource_aws_vpc_destroy,
+				Diff:    resource_aws_vpc_diff,
+				Refresh: resource_aws_vpc_refresh,
+			},
 		},
 	}
 }