90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
package aws
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import (
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"fmt"
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"log"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func dataSourceAwsAvailabilityZone() *schema.Resource {
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return &schema.Resource{
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Read: dataSourceAwsAvailabilityZoneRead,
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Schema: map[string]*schema.Schema{
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"name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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"region": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"name_suffix": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"state": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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},
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}
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}
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func dataSourceAwsAvailabilityZoneRead(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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req := &ec2.DescribeAvailabilityZonesInput{}
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if name := d.Get("name"); name != "" {
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req.ZoneNames = []*string{aws.String(name.(string))}
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}
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req.Filters = buildEC2AttributeFilterList(
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map[string]string{
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"state": d.Get("state").(string),
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},
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)
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if len(req.Filters) == 0 {
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// Don't send an empty filters list; the EC2 API won't accept it.
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req.Filters = nil
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}
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log.Printf("[DEBUG] DescribeAvailabilityZones %s\n", req)
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resp, err := conn.DescribeAvailabilityZones(req)
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if err != nil {
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return err
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}
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if resp == nil || len(resp.AvailabilityZones) == 0 {
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return fmt.Errorf("no matching AZ found")
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}
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if len(resp.AvailabilityZones) > 1 {
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return fmt.Errorf("multiple AZs matched; use additional constraints to reduce matches to a single AZ")
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}
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az := resp.AvailabilityZones[0]
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// As a convenience when working with AZs generically, we expose
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// the AZ suffix alone, without the region name.
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// This can be used e.g. to create lookup tables by AZ letter that
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// work regardless of region.
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nameSuffix := (*az.ZoneName)[len(*az.RegionName):]
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d.SetId(*az.ZoneName)
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d.Set("id", az.ZoneName)
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d.Set("name", az.ZoneName)
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d.Set("name_suffix", nameSuffix)
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d.Set("region", az.RegionName)
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d.Set("state", az.State)
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return nil
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}
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