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

     1  package aws
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  
     7  	"github.com/aws/aws-sdk-go/aws"
     8  	"github.com/aws/aws-sdk-go/service/ec2"
     9  	"github.com/hashicorp/terraform/helper/schema"
    10  )
    11  
    12  func dataSourceAwsVpnGateway() *schema.Resource {
    13  	return &schema.Resource{
    14  		Read: dataSourceAwsVpnGatewayRead,
    15  
    16  		Schema: map[string]*schema.Schema{
    17  			"id": {
    18  				Type:     schema.TypeString,
    19  				Optional: true,
    20  				Computed: true,
    21  			},
    22  			"state": {
    23  				Type:     schema.TypeString,
    24  				Optional: true,
    25  				Computed: true,
    26  			},
    27  			"attached_vpc_id": {
    28  				Type:     schema.TypeString,
    29  				Optional: true,
    30  				Computed: true,
    31  			},
    32  			"availability_zone": {
    33  				Type:     schema.TypeString,
    34  				Optional: true,
    35  				Computed: true,
    36  			},
    37  			"filter": ec2CustomFiltersSchema(),
    38  			"tags":   tagsSchemaComputed(),
    39  		},
    40  	}
    41  }
    42  
    43  func dataSourceAwsVpnGatewayRead(d *schema.ResourceData, meta interface{}) error {
    44  	conn := meta.(*AWSClient).ec2conn
    45  
    46  	log.Printf("[DEBUG] Reading VPN Gateways.")
    47  
    48  	req := &ec2.DescribeVpnGatewaysInput{}
    49  
    50  	if id, ok := d.GetOk("id"); ok {
    51  		req.VpnGatewayIds = aws.StringSlice([]string{id.(string)})
    52  	}
    53  
    54  	req.Filters = buildEC2AttributeFilterList(
    55  		map[string]string{
    56  			"state":             d.Get("state").(string),
    57  			"availability-zone": d.Get("availability_zone").(string),
    58  		},
    59  	)
    60  	if id, ok := d.GetOk("attached_vpc_id"); ok {
    61  		req.Filters = append(req.Filters, buildEC2AttributeFilterList(
    62  			map[string]string{
    63  				"attachment.state":  "attached",
    64  				"attachment.vpc-id": id.(string),
    65  			},
    66  		)...)
    67  	}
    68  	req.Filters = append(req.Filters, buildEC2TagFilterList(
    69  		tagsFromMap(d.Get("tags").(map[string]interface{})),
    70  	)...)
    71  	req.Filters = append(req.Filters, buildEC2CustomFilterList(
    72  		d.Get("filter").(*schema.Set),
    73  	)...)
    74  	if len(req.Filters) == 0 {
    75  		// Don't send an empty filters list; the EC2 API won't accept it.
    76  		req.Filters = nil
    77  	}
    78  
    79  	resp, err := conn.DescribeVpnGateways(req)
    80  	if err != nil {
    81  		return err
    82  	}
    83  	if resp == nil || len(resp.VpnGateways) == 0 {
    84  		return fmt.Errorf("no matching VPN gateway found: %#v", req)
    85  	}
    86  	if len(resp.VpnGateways) > 1 {
    87  		return fmt.Errorf("multiple VPN gateways matched; use additional constraints to reduce matches to a single VPN gateway")
    88  	}
    89  
    90  	vgw := resp.VpnGateways[0]
    91  
    92  	d.SetId(aws.StringValue(vgw.VpnGatewayId))
    93  	d.Set("state", vgw.State)
    94  	d.Set("availability_zone", vgw.AvailabilityZone)
    95  	d.Set("tags", tagsToMap(vgw.Tags))
    96  
    97  	for _, attachment := range vgw.VpcAttachments {
    98  		if *attachment.State == "attached" {
    99  			d.Set("attached_vpc_id", attachment.VpcId)
   100  			break
   101  		}
   102  	}
   103  
   104  	return nil
   105  }