github.com/nathanielks/terraform@v0.6.1-0.20170509030759-13e1a62319dc/builtin/providers/aws/resource_aws_network_interface_attachment.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 resourceAwsNetworkInterfaceAttachment() *schema.Resource {
    16  	return &schema.Resource{
    17  		Create: resourceAwsNetworkInterfaceAttachmentCreate,
    18  		Read:   resourceAwsNetworkInterfaceAttachmentRead,
    19  		Delete: resourceAwsNetworkInterfaceAttachmentDelete,
    20  
    21  		Schema: map[string]*schema.Schema{
    22  			"device_index": {
    23  				Type:     schema.TypeInt,
    24  				Required: true,
    25  				ForceNew: true,
    26  			},
    27  
    28  			"instance_id": {
    29  				Type:     schema.TypeString,
    30  				Required: true,
    31  				ForceNew: true,
    32  			},
    33  
    34  			"network_interface_id": {
    35  				Type:     schema.TypeString,
    36  				Required: true,
    37  				ForceNew: true,
    38  			},
    39  
    40  			"attachment_id": {
    41  				Type:     schema.TypeString,
    42  				Computed: true,
    43  			},
    44  
    45  			"status": {
    46  				Type:     schema.TypeString,
    47  				Computed: true,
    48  			},
    49  		},
    50  	}
    51  }
    52  
    53  func resourceAwsNetworkInterfaceAttachmentCreate(d *schema.ResourceData, meta interface{}) error {
    54  	conn := meta.(*AWSClient).ec2conn
    55  
    56  	device_index := d.Get("device_index").(int)
    57  	instance_id := d.Get("instance_id").(string)
    58  	network_interface_id := d.Get("network_interface_id").(string)
    59  
    60  	opts := &ec2.AttachNetworkInterfaceInput{
    61  		DeviceIndex:        aws.Int64(int64(device_index)),
    62  		InstanceId:         aws.String(instance_id),
    63  		NetworkInterfaceId: aws.String(network_interface_id),
    64  	}
    65  
    66  	log.Printf("[DEBUG] Attaching network interface (%s) to instance (%s)", network_interface_id, instance_id)
    67  	resp, err := conn.AttachNetworkInterface(opts)
    68  	if err != nil {
    69  		if awsErr, ok := err.(awserr.Error); ok {
    70  			return fmt.Errorf("Error attaching network interface (%s) to instance (%s), message: \"%s\", code: \"%s\"",
    71  				network_interface_id, instance_id, awsErr.Message(), awsErr.Code())
    72  		}
    73  		return err
    74  	}
    75  
    76  	stateConf := &resource.StateChangeConf{
    77  		Pending:    []string{"false"},
    78  		Target:     []string{"true"},
    79  		Refresh:    networkInterfaceAttachmentRefreshFunc(conn, network_interface_id),
    80  		Timeout:    5 * time.Minute,
    81  		Delay:      10 * time.Second,
    82  		MinTimeout: 3 * time.Second,
    83  	}
    84  
    85  	_, err = stateConf.WaitForState()
    86  	if err != nil {
    87  		return fmt.Errorf(
    88  			"Error waiting for Volume (%s) to attach to Instance: %s, error: %s", network_interface_id, instance_id, err)
    89  	}
    90  
    91  	d.SetId(*resp.AttachmentId)
    92  	return resourceAwsNetworkInterfaceAttachmentRead(d, meta)
    93  }
    94  
    95  func resourceAwsNetworkInterfaceAttachmentRead(d *schema.ResourceData, meta interface{}) error {
    96  	conn := meta.(*AWSClient).ec2conn
    97  
    98  	interfaceId := d.Get("network_interface_id").(string)
    99  
   100  	req := &ec2.DescribeNetworkInterfacesInput{
   101  		NetworkInterfaceIds: []*string{aws.String(interfaceId)},
   102  	}
   103  
   104  	resp, err := conn.DescribeNetworkInterfaces(req)
   105  	if err != nil {
   106  		if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidNetworkInterfaceID.NotFound" {
   107  			// The ENI is gone now, so just remove the attachment from the state
   108  			d.SetId("")
   109  			return nil
   110  		}
   111  
   112  		return fmt.Errorf("Error retrieving ENI: %s", err)
   113  	}
   114  	if len(resp.NetworkInterfaces) != 1 {
   115  		return fmt.Errorf("Unable to find ENI (%s): %#v", interfaceId, resp.NetworkInterfaces)
   116  	}
   117  
   118  	eni := resp.NetworkInterfaces[0]
   119  
   120  	if eni.Attachment == nil {
   121  		// Interface is no longer attached, remove from state
   122  		d.SetId("")
   123  		return nil
   124  	}
   125  
   126  	d.Set("attachment_id", eni.Attachment.AttachmentId)
   127  	d.Set("device_index", eni.Attachment.DeviceIndex)
   128  	d.Set("instance_id", eni.Attachment.InstanceId)
   129  	d.Set("network_interface_id", eni.NetworkInterfaceId)
   130  	d.Set("status", eni.Attachment.Status)
   131  
   132  	return nil
   133  }
   134  
   135  func resourceAwsNetworkInterfaceAttachmentDelete(d *schema.ResourceData, meta interface{}) error {
   136  	conn := meta.(*AWSClient).ec2conn
   137  
   138  	interfaceId := d.Get("network_interface_id").(string)
   139  
   140  	detach_request := &ec2.DetachNetworkInterfaceInput{
   141  		AttachmentId: aws.String(d.Id()),
   142  		Force:        aws.Bool(true),
   143  	}
   144  
   145  	_, detach_err := conn.DetachNetworkInterface(detach_request)
   146  	if detach_err != nil {
   147  		if awsErr, _ := detach_err.(awserr.Error); awsErr.Code() != "InvalidAttachmentID.NotFound" {
   148  			return fmt.Errorf("Error detaching ENI: %s", detach_err)
   149  		}
   150  	}
   151  
   152  	log.Printf("[DEBUG] Waiting for ENI (%s) to become dettached", interfaceId)
   153  	stateConf := &resource.StateChangeConf{
   154  		Pending: []string{"true"},
   155  		Target:  []string{"false"},
   156  		Refresh: networkInterfaceAttachmentRefreshFunc(conn, interfaceId),
   157  		Timeout: 10 * time.Minute,
   158  	}
   159  
   160  	if _, err := stateConf.WaitForState(); err != nil {
   161  		return fmt.Errorf(
   162  			"Error waiting for ENI (%s) to become dettached: %s", interfaceId, err)
   163  	}
   164  
   165  	return nil
   166  }