github.com/vtorhonen/terraform@v0.9.0-beta2.0.20170307220345-5d894e4ffda7/builtin/providers/aws/resource_aws_route_table_association.go (about)

     1  package aws
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  	"time"
     7  
     8  	"github.com/aws/aws-sdk-go/aws"
     9  	"github.com/aws/aws-sdk-go/aws/awserr"
    10  	"github.com/aws/aws-sdk-go/service/ec2"
    11  	"github.com/hashicorp/terraform/helper/resource"
    12  	"github.com/hashicorp/terraform/helper/schema"
    13  )
    14  
    15  func resourceAwsRouteTableAssociation() *schema.Resource {
    16  	return &schema.Resource{
    17  		Create: resourceAwsRouteTableAssociationCreate,
    18  		Read:   resourceAwsRouteTableAssociationRead,
    19  		Update: resourceAwsRouteTableAssociationUpdate,
    20  		Delete: resourceAwsRouteTableAssociationDelete,
    21  
    22  		Schema: map[string]*schema.Schema{
    23  			"subnet_id": &schema.Schema{
    24  				Type:     schema.TypeString,
    25  				Required: true,
    26  				ForceNew: true,
    27  			},
    28  
    29  			"route_table_id": &schema.Schema{
    30  				Type:     schema.TypeString,
    31  				Required: true,
    32  			},
    33  		},
    34  	}
    35  }
    36  
    37  func resourceAwsRouteTableAssociationCreate(d *schema.ResourceData, meta interface{}) error {
    38  	conn := meta.(*AWSClient).ec2conn
    39  
    40  	log.Printf(
    41  		"[INFO] Creating route table association: %s => %s",
    42  		d.Get("subnet_id").(string),
    43  		d.Get("route_table_id").(string))
    44  
    45  	associationOpts := ec2.AssociateRouteTableInput{
    46  		RouteTableId: aws.String(d.Get("route_table_id").(string)),
    47  		SubnetId:     aws.String(d.Get("subnet_id").(string)),
    48  	}
    49  
    50  	var resp *ec2.AssociateRouteTableOutput
    51  	var err error
    52  	err = resource.Retry(2*time.Minute, func() *resource.RetryError {
    53  		resp, err = conn.AssociateRouteTable(&associationOpts)
    54  		if err != nil {
    55  			if awsErr, ok := err.(awserr.Error); ok {
    56  				if awsErr.Code() == "InvalidRouteTableID.NotFound" {
    57  					return resource.RetryableError(awsErr)
    58  				}
    59  			}
    60  			return resource.NonRetryableError(err)
    61  		}
    62  		return nil
    63  	})
    64  	if err != nil {
    65  		return err
    66  	}
    67  
    68  	// Set the ID and return
    69  	d.SetId(*resp.AssociationId)
    70  	log.Printf("[INFO] Association ID: %s", d.Id())
    71  
    72  	return nil
    73  }
    74  
    75  func resourceAwsRouteTableAssociationRead(d *schema.ResourceData, meta interface{}) error {
    76  	conn := meta.(*AWSClient).ec2conn
    77  
    78  	// Get the routing table that this association belongs to
    79  	rtRaw, _, err := resourceAwsRouteTableStateRefreshFunc(
    80  		conn, d.Get("route_table_id").(string))()
    81  	if err != nil {
    82  		return err
    83  	}
    84  	if rtRaw == nil {
    85  		return nil
    86  	}
    87  	rt := rtRaw.(*ec2.RouteTable)
    88  
    89  	// Inspect that the association exists
    90  	found := false
    91  	for _, a := range rt.Associations {
    92  		if *a.RouteTableAssociationId == d.Id() {
    93  			found = true
    94  			d.Set("subnet_id", *a.SubnetId)
    95  			break
    96  		}
    97  	}
    98  
    99  	if !found {
   100  		// It seems it doesn't exist anymore, so clear the ID
   101  		d.SetId("")
   102  	}
   103  
   104  	return nil
   105  }
   106  
   107  func resourceAwsRouteTableAssociationUpdate(d *schema.ResourceData, meta interface{}) error {
   108  	conn := meta.(*AWSClient).ec2conn
   109  
   110  	log.Printf(
   111  		"[INFO] Creating route table association: %s => %s",
   112  		d.Get("subnet_id").(string),
   113  		d.Get("route_table_id").(string))
   114  
   115  	req := &ec2.ReplaceRouteTableAssociationInput{
   116  		AssociationId: aws.String(d.Id()),
   117  		RouteTableId:  aws.String(d.Get("route_table_id").(string)),
   118  	}
   119  	resp, err := conn.ReplaceRouteTableAssociation(req)
   120  
   121  	if err != nil {
   122  		ec2err, ok := err.(awserr.Error)
   123  		if ok && ec2err.Code() == "InvalidAssociationID.NotFound" {
   124  			// Not found, so just create a new one
   125  			return resourceAwsRouteTableAssociationCreate(d, meta)
   126  		}
   127  
   128  		return err
   129  	}
   130  
   131  	// Update the ID
   132  	d.SetId(*resp.NewAssociationId)
   133  	log.Printf("[INFO] Association ID: %s", d.Id())
   134  
   135  	return nil
   136  }
   137  
   138  func resourceAwsRouteTableAssociationDelete(d *schema.ResourceData, meta interface{}) error {
   139  	conn := meta.(*AWSClient).ec2conn
   140  
   141  	log.Printf("[INFO] Deleting route table association: %s", d.Id())
   142  	_, err := conn.DisassociateRouteTable(&ec2.DisassociateRouteTableInput{
   143  		AssociationId: aws.String(d.Id()),
   144  	})
   145  	if err != nil {
   146  		ec2err, ok := err.(awserr.Error)
   147  		if ok && ec2err.Code() == "InvalidAssociationID.NotFound" {
   148  			return nil
   149  		}
   150  
   151  		return fmt.Errorf("Error deleting route table association: %s", err)
   152  	}
   153  
   154  	return nil
   155  }