/
data_source_aws_subnet_ids.go
83 lines (65 loc) · 1.69 KB
/
data_source_aws_subnet_ids.go
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package aws
import (
"fmt"
"log"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/schema"
)
func dataSourceAwsSubnetIDs() *schema.Resource {
return &schema.Resource{
Read: dataSourceAwsSubnetIDsRead,
Schema: map[string]*schema.Schema{
"filter": ec2CustomFiltersSchema(),
"tags": tagsSchemaComputed(),
"vpc_id": {
Type: schema.TypeString,
Required: true,
},
"ids": {
Type: schema.TypeSet,
Computed: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
},
},
}
}
func dataSourceAwsSubnetIDsRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
req := &ec2.DescribeSubnetsInput{}
if vpc, vpcOk := d.GetOk("vpc_id"); vpcOk {
req.Filters = buildEC2AttributeFilterList(
map[string]string{
"vpc-id": vpc.(string),
},
)
}
if tags, tagsOk := d.GetOk("tags"); tagsOk {
req.Filters = append(req.Filters, buildEC2TagFilterList(
tagsFromMap(tags.(map[string]interface{})),
)...)
}
if filters, filtersOk := d.GetOk("filter"); filtersOk {
req.Filters = append(req.Filters, buildEC2CustomFilterList(
filters.(*schema.Set),
)...)
}
if len(req.Filters) == 0 {
req.Filters = nil
}
log.Printf("[DEBUG] DescribeSubnets %s\n", req)
resp, err := conn.DescribeSubnets(req)
if err != nil {
return err
}
if resp == nil || len(resp.Subnets) == 0 {
return fmt.Errorf("no matching subnet found for vpc with id %s", d.Get("vpc_id").(string))
}
subnets := make([]string, 0)
for _, subnet := range resp.Subnets {
subnets = append(subnets, *subnet.SubnetId)
}
d.SetId(d.Get("vpc_id").(string))
d.Set("ids", subnets)
return nil
}