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resource_aws_route_table_association.go
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resource_aws_route_table_association.go
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package aws
import (
"fmt"
"log"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsRouteTableAssociation() *schema.Resource {
return &schema.Resource{
Create: resourceAwsRouteTableAssociationCreate,
Read: resourceAwsRouteTableAssociationRead,
Update: resourceAwsRouteTableAssociationUpdate,
Delete: resourceAwsRouteTableAssociationDelete,
Schema: map[string]*schema.Schema{
"subnet_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"route_table_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
},
}
}
func resourceAwsRouteTableAssociationCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
log.Printf(
"[INFO] Creating route table association: %s => %s",
d.Get("subnet_id").(string),
d.Get("route_table_id").(string))
associationOpts := ec2.AssociateRouteTableInput{
RouteTableId: aws.String(d.Get("route_table_id").(string)),
SubnetId: aws.String(d.Get("subnet_id").(string)),
}
var resp *ec2.AssociateRouteTableOutput
var err error
err = resource.Retry(5*time.Minute, func() *resource.RetryError {
resp, err = conn.AssociateRouteTable(&associationOpts)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
if awsErr.Code() == "InvalidRouteTableID.NotFound" {
return resource.RetryableError(awsErr)
}
}
return resource.NonRetryableError(err)
}
return nil
})
if err != nil {
return err
}
// Set the ID and return
d.SetId(*resp.AssociationId)
log.Printf("[INFO] Association ID: %s", d.Id())
return nil
}
func resourceAwsRouteTableAssociationRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
// Get the routing table that this association belongs to
rtRaw, _, err := resourceAwsRouteTableStateRefreshFunc(
conn, d.Get("route_table_id").(string))()
if err != nil {
return err
}
if rtRaw == nil {
return nil
}
rt := rtRaw.(*ec2.RouteTable)
// Inspect that the association exists
found := false
for _, a := range rt.Associations {
if *a.RouteTableAssociationId == d.Id() {
found = true
d.Set("subnet_id", *a.SubnetId)
break
}
}
if !found {
// It seems it doesn't exist anymore, so clear the ID
d.SetId("")
}
return nil
}
func resourceAwsRouteTableAssociationUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
log.Printf(
"[INFO] Creating route table association: %s => %s",
d.Get("subnet_id").(string),
d.Get("route_table_id").(string))
req := &ec2.ReplaceRouteTableAssociationInput{
AssociationId: aws.String(d.Id()),
RouteTableId: aws.String(d.Get("route_table_id").(string)),
}
resp, err := conn.ReplaceRouteTableAssociation(req)
if err != nil {
ec2err, ok := err.(awserr.Error)
if ok && ec2err.Code() == "InvalidAssociationID.NotFound" {
// Not found, so just create a new one
return resourceAwsRouteTableAssociationCreate(d, meta)
}
return err
}
// Update the ID
d.SetId(*resp.NewAssociationId)
log.Printf("[INFO] Association ID: %s", d.Id())
return nil
}
func resourceAwsRouteTableAssociationDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
log.Printf("[INFO] Deleting route table association: %s", d.Id())
_, err := conn.DisassociateRouteTable(&ec2.DisassociateRouteTableInput{
AssociationId: aws.String(d.Id()),
})
if err != nil {
ec2err, ok := err.(awserr.Error)
if ok && ec2err.Code() == "InvalidAssociationID.NotFound" {
return nil
}
return fmt.Errorf("Error deleting route table association: %s", err)
}
return nil
}