github.com/danp/terraform@v0.9.5-0.20170426144147-39d740081351/builtin/providers/aws/resource_aws_vpc_dhcp_options_association.go (about)

     1  package aws
     2  
     3  import (
     4  	"log"
     5  
     6  	"github.com/aws/aws-sdk-go/aws"
     7  	"github.com/aws/aws-sdk-go/service/ec2"
     8  	"github.com/hashicorp/terraform/helper/schema"
     9  )
    10  
    11  func resourceAwsVpcDhcpOptionsAssociation() *schema.Resource {
    12  	return &schema.Resource{
    13  		Create: resourceAwsVpcDhcpOptionsAssociationCreate,
    14  		Read:   resourceAwsVpcDhcpOptionsAssociationRead,
    15  		Update: resourceAwsVpcDhcpOptionsAssociationUpdate,
    16  		Delete: resourceAwsVpcDhcpOptionsAssociationDelete,
    17  
    18  		Schema: map[string]*schema.Schema{
    19  			"vpc_id": &schema.Schema{
    20  				Type:     schema.TypeString,
    21  				Required: true,
    22  			},
    23  
    24  			"dhcp_options_id": &schema.Schema{
    25  				Type:     schema.TypeString,
    26  				Required: true,
    27  			},
    28  		},
    29  	}
    30  }
    31  
    32  func resourceAwsVpcDhcpOptionsAssociationCreate(d *schema.ResourceData, meta interface{}) error {
    33  	conn := meta.(*AWSClient).ec2conn
    34  
    35  	log.Printf(
    36  		"[INFO] Creating DHCP Options association: %s => %s",
    37  		d.Get("vpc_id").(string),
    38  		d.Get("dhcp_options_id").(string))
    39  
    40  	optsID := aws.String(d.Get("dhcp_options_id").(string))
    41  	vpcID := aws.String(d.Get("vpc_id").(string))
    42  
    43  	if _, err := conn.AssociateDhcpOptions(&ec2.AssociateDhcpOptionsInput{
    44  		DhcpOptionsId: optsID,
    45  		VpcId:         vpcID,
    46  	}); err != nil {
    47  		return err
    48  	}
    49  
    50  	// Set the ID and return
    51  	d.SetId(*optsID + "-" + *vpcID)
    52  	log.Printf("[INFO] Association ID: %s", d.Id())
    53  
    54  	return nil
    55  }
    56  
    57  func resourceAwsVpcDhcpOptionsAssociationRead(d *schema.ResourceData, meta interface{}) error {
    58  	conn := meta.(*AWSClient).ec2conn
    59  	// Get the VPC that this association belongs to
    60  	vpcRaw, _, err := VPCStateRefreshFunc(conn, d.Get("vpc_id").(string))()
    61  
    62  	if err != nil {
    63  		return err
    64  	}
    65  
    66  	if vpcRaw == nil {
    67  		return nil
    68  	}
    69  
    70  	vpc := vpcRaw.(*ec2.Vpc)
    71  	if *vpc.VpcId != d.Get("vpc_id") || *vpc.DhcpOptionsId != d.Get("dhcp_options_id") {
    72  		log.Printf("[INFO] It seems the DHCP Options association is gone. Deleting reference from Graph...")
    73  		d.SetId("")
    74  	}
    75  
    76  	return nil
    77  }
    78  
    79  // DHCP Options Asociations cannot be updated.
    80  func resourceAwsVpcDhcpOptionsAssociationUpdate(d *schema.ResourceData, meta interface{}) error {
    81  	return resourceAwsVpcDhcpOptionsAssociationCreate(d, meta)
    82  }
    83  
    84  // AWS does not provide an API to disassociate a DHCP Options set from a VPC.
    85  // So, we do this by setting the VPC to the default DHCP Options Set.
    86  func resourceAwsVpcDhcpOptionsAssociationDelete(d *schema.ResourceData, meta interface{}) error {
    87  	conn := meta.(*AWSClient).ec2conn
    88  
    89  	log.Printf("[INFO] Disassociating DHCP Options Set %s from VPC %s...", d.Get("dhcp_options_id"), d.Get("vpc_id"))
    90  	if _, err := conn.AssociateDhcpOptions(&ec2.AssociateDhcpOptionsInput{
    91  		DhcpOptionsId: aws.String("default"),
    92  		VpcId:         aws.String(d.Get("vpc_id").(string)),
    93  	}); err != nil {
    94  		return err
    95  	}
    96  
    97  	d.SetId("")
    98  	return nil
    99  }