terraform/builtin/providers/aws/data_source_aws_region.go

85 lines
1.9 KiB
Go

package aws
import (
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/schema"
)
func dataSourceAwsRegion() *schema.Resource {
return &schema.Resource{
Read: dataSourceAwsRegionRead,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"current": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"endpoint": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
},
}
}
func dataSourceAwsRegionRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
currentRegion := meta.(*AWSClient).region
req := &ec2.DescribeRegionsInput{}
req.RegionNames = make([]*string, 0, 2)
if name := d.Get("name").(string); name != "" {
req.RegionNames = append(req.RegionNames, aws.String(name))
}
if d.Get("current").(bool) {
req.RegionNames = append(req.RegionNames, aws.String(currentRegion))
}
req.Filters = buildEC2AttributeFilterList(
map[string]string{
"endpoint": d.Get("endpoint").(string),
},
)
if len(req.Filters) == 0 {
// Don't send an empty filters list; the EC2 API won't accept it.
req.Filters = nil
}
log.Printf("[DEBUG] DescribeRegions %s\n", req)
resp, err := conn.DescribeRegions(req)
if err != nil {
return err
}
if resp == nil || len(resp.Regions) == 0 {
return fmt.Errorf("no matching regions found")
}
if len(resp.Regions) > 1 {
return fmt.Errorf("multiple regions matched; use additional constraints to reduce matches to a single region")
}
region := resp.Regions[0]
d.SetId(*region.RegionName)
d.Set("id", region.RegionName)
d.Set("name", region.RegionName)
d.Set("endpoint", region.Endpoint)
d.Set("current", *region.RegionName == currentRegion)
return nil
}