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data_source_aws_prefix_list.go
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/
data_source_aws_prefix_list.go
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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 dataSourceAwsPrefixList() *schema.Resource {
return &schema.Resource{
Read: dataSourceAwsPrefixListRead,
Schema: map[string]*schema.Schema{
"prefix_list_id": {
Type: schema.TypeString,
Optional: true,
},
"name": {
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"cidr_blocks": {
Type: schema.TypeList,
Computed: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
},
}
}
func dataSourceAwsPrefixListRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ec2conn
req := &ec2.DescribePrefixListsInput{}
if prefixListID := d.Get("prefix_list_id"); prefixListID != "" {
req.PrefixListIds = aws.StringSlice([]string{prefixListID.(string)})
}
req.Filters = buildEC2AttributeFilterList(
map[string]string{
"prefix-list-name": d.Get("name").(string),
},
)
log.Printf("[DEBUG] Reading Prefix List: %s", req)
resp, err := conn.DescribePrefixLists(req)
if err != nil {
return err
}
if resp == nil || len(resp.PrefixLists) == 0 {
return fmt.Errorf("no matching prefix list found; the prefix list ID or name may be invalid or not exist in the current region")
}
pl := resp.PrefixLists[0]
d.SetId(*pl.PrefixListId)
d.Set("name", pl.PrefixListName)
cidrs := make([]string, len(pl.Cidrs))
for i, v := range pl.Cidrs {
cidrs[i] = *v
}
d.Set("cidr_blocks", cidrs)
return nil
}