package aws import ( "fmt" "log" "time" "github.com/hashicorp/terraform/helper/resource" "github.com/hashicorp/terraform/helper/schema" "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, }, "tags": tagsSchema(), }, } } func resourceAwsVpcCreate(d *schema.ResourceData, meta interface{}) error { p := meta.(*ResourceProvider) ec2conn := p.ec2conn // Create the VPC createOpts := &ec2.CreateVpc{ CidrBlock: d.Get("cidr_block").(string), } log.Printf("[DEBUG] VPC create config: %#v", createOpts) vpcResp, err := ec2conn.CreateVpc(createOpts) if err != nil { return fmt.Errorf("Error creating VPC: %s", err) } // 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") // 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: "available", Refresh: VPCStateRefreshFunc(ec2conn, 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 resourceAwsVpcUpdate(d *schema.ResourceData, meta interface{}) error { p := meta.(*ResourceProvider) ec2conn := p.ec2conn // Turn on partial mode d.Partial(true) defer d.Partial(false) if d.HasChange("enable_dns_hostnames") { options := new(ec2.ModifyVpcAttribute) options.EnableDnsHostnames = d.Get("enable_dns_hostnames").(bool) options.SetEnableDnsHostnames = true 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 } d.SetPartial("enable_dns_hostnames") } if d.HasChange("enable_dns_support") { options := new(ec2.ModifyVpcAttribute) options.EnableDnsSupport = d.Get("enable_dns_support").(bool) options.SetEnableDnsSupport = true 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 } d.SetPartial("enable_dns_support") } if err := setTags(ec2conn, d); err != nil { return err } else { d.SetPartial("tags") } return nil } func resourceAwsVpcDelete(d *schema.ResourceData, meta interface{}) error { 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) } return nil } func resourceAwsVpcRead(d *schema.ResourceData, meta interface{}) error { p := meta.(*ResourceProvider) ec2conn := p.ec2conn // Refresh the VPC state vpcRaw, _, err := VPCStateRefreshFunc(ec2conn, d.Id())() if err != nil { return err } if vpcRaw == nil { return nil } // VPC stuff vpc := vpcRaw.(*ec2.VPC) d.Set("cidr_block", vpc.CidrBlock) // Tags d.Set("tags", tagsToMap(vpc.Tags)) // Attributes resp, err := ec2conn.VpcAttribute(d.Id(), "enableDnsSupport") if err != nil { return err } d.Set("enable_dns_support", resp.EnableDnsSupport) resp, err = ec2conn.VpcAttribute(d.Id(), "enableDnsHostnames") if err != nil { return err } d.Set("enable_dns_hostnames", resp.EnableDnsHostnames) return 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 { if ec2err, ok := err.(*ec2.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 } }