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data_source_alicloud_regions.go
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data_source_alicloud_regions.go
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package alicloud
import (
"fmt"
"log"
"github.com/aliyun/alibaba-cloud-sdk-go/services/ecs"
"github.com/hashicorp/terraform/helper/schema"
)
func dataSourceAlicloudRegions() *schema.Resource {
return &schema.Resource{
Read: dataSourceAlicloudRegionsRead,
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,
},
"output_file": {
Type: schema.TypeString,
Optional: true,
},
//Computed value
"regions": &schema.Schema{
Type: schema.TypeList,
Computed: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"id": {
Type: schema.TypeString,
Computed: true,
},
"region_id": {
Type: schema.TypeString,
Computed: true,
},
"local_name": {
Type: schema.TypeString,
Computed: true,
},
},
},
},
},
}
}
func dataSourceAlicloudRegionsRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
currentRegion := getRegionId(d, meta)
resp, err := conn.DescribeRegions(ecs.CreateDescribeRegionsRequest())
if err != nil {
return err
}
if resp == nil || len(resp.Regions.Region) == 0 {
return fmt.Errorf("no matching regions found")
}
name, nameOk := d.GetOk("name")
current := d.Get("current").(bool)
var filterRegions []ecs.Region
for _, region := range resp.Regions.Region {
if current {
if nameOk && name.(string) != currentRegion {
return fmt.Errorf("name doesn't match current region: %#v, please input again.", currentRegion)
}
if region.RegionId == currentRegion {
filterRegions = append(filterRegions, region)
break
}
continue
}
if nameOk {
if name.(string) == region.RegionId {
filterRegions = append(filterRegions, region)
break
}
continue
}
filterRegions = append(filterRegions, region)
}
if len(filterRegions) < 1 {
return fmt.Errorf("Your query region returned no results. Please change your search criteria and try again.")
}
return regionsDescriptionAttributes(d, filterRegions)
}
func regionsDescriptionAttributes(d *schema.ResourceData, regions []ecs.Region) error {
var ids []string
var s []map[string]interface{}
for _, region := range regions {
mapping := map[string]interface{}{
"id": region.RegionId,
"region_id": region.RegionId,
"local_name": region.LocalName,
}
log.Printf("[DEBUG] alicloud_regions - adding region mapping: %v", mapping)
ids = append(ids, string(region.RegionId))
s = append(s, mapping)
}
d.SetId(dataResourceIdHash(ids))
if err := d.Set("regions", s); err != nil {
return err
}
// create a json file in current directory and write data source to it.
if output, ok := d.GetOk("output_file"); ok && output.(string) != "" {
writeToFile(output.(string), s)
}
return nil
}