terraform/builtin/providers/alicloud/resource_alicloud_disk_atta...

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2017-01-19 15:08:56 +01:00
package alicloud
import (
"fmt"
"strings"
"github.com/denverdino/aliyungo/common"
"github.com/denverdino/aliyungo/ecs"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"log"
"time"
)
func resourceAliyunDiskAttachment() *schema.Resource {
return &schema.Resource{
Create: resourceAliyunDiskAttachmentCreate,
Read: resourceAliyunDiskAttachmentRead,
Delete: resourceAliyunDiskAttachmentDelete,
Schema: map[string]*schema.Schema{
"instance_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"disk_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"device_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
},
}
}
func resourceAliyunDiskAttachmentCreate(d *schema.ResourceData, meta interface{}) error {
err := diskAttachment(d, meta)
if err != nil {
return err
}
d.SetId(d.Get("disk_id").(string) + ":" + d.Get("instance_id").(string))
return resourceAliyunDiskAttachmentRead(d, meta)
}
func resourceAliyunDiskAttachmentRead(d *schema.ResourceData, meta interface{}) error {
diskId, instanceId, err := getDiskIDAndInstanceID(d, meta)
if err != nil {
return err
}
conn := meta.(*AliyunClient).ecsconn
disks, _, err := conn.DescribeDisks(&ecs.DescribeDisksArgs{
RegionId: getRegion(d, meta),
InstanceId: instanceId,
DiskIds: []string{diskId},
})
if err != nil {
if notFoundError(err) {
d.SetId("")
return nil
}
return fmt.Errorf("Error DescribeDiskAttribute: %#v", err)
}
log.Printf("[DEBUG] DescribeDiskAttribute for instance: %#v", disks)
if disks == nil || len(disks) <= 0 {
return fmt.Errorf("No Disks Found.")
}
disk := disks[0]
d.Set("instance_id", disk.InstanceId)
d.Set("disk_id", disk.DiskId)
d.Set("device_name", disk.Device)
return nil
}
func resourceAliyunDiskAttachmentDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
diskID, instanceID, err := getDiskIDAndInstanceID(d, meta)
if err != nil {
return err
}
return resource.Retry(5*time.Minute, func() *resource.RetryError {
err := conn.DetachDisk(instanceID, diskID)
if err != nil {
e, _ := err.(*common.Error)
if e.ErrorResponse.Code == DiskIncorrectStatus || e.ErrorResponse.Code == InstanceLockedForSecurity {
return resource.RetryableError(fmt.Errorf("Disk in use - trying again while it detaches"))
}
}
disks, _, descErr := conn.DescribeDisks(&ecs.DescribeDisksArgs{
RegionId: getRegion(d, meta),
DiskIds: []string{diskID},
})
if descErr != nil {
log.Printf("[ERROR] Disk %s is not detached.", diskID)
return resource.NonRetryableError(err)
}
for _, disk := range disks {
if disk.Status != ecs.DiskStatusAvailable {
return resource.RetryableError(fmt.Errorf("Disk in use - trying again while it is deleted."))
}
}
return nil
})
}
func getDiskIDAndInstanceID(d *schema.ResourceData, meta interface{}) (string, string, error) {
parts := strings.Split(d.Id(), ":")
if len(parts) != 2 {
return "", "", fmt.Errorf("invalid resource id")
}
return parts[0], parts[1], nil
}
func diskAttachment(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
diskID := d.Get("disk_id").(string)
instanceID := d.Get("instance_id").(string)
deviceName := d.Get("device_name").(string)
args := &ecs.AttachDiskArgs{
InstanceId: instanceID,
DiskId: diskID,
Device: deviceName,
}
return resource.Retry(5*time.Minute, func() *resource.RetryError {
err := conn.AttachDisk(args)
log.Printf("error : %s", err)
if err != nil {
e, _ := err.(*common.Error)
if e.ErrorResponse.Code == DiskIncorrectStatus || e.ErrorResponse.Code == InstanceIncorrectStatus {
return resource.RetryableError(fmt.Errorf("Disk or Instance status is incorrect - trying again while it attaches"))
}
return resource.NonRetryableError(err)
}
disks, _, descErr := conn.DescribeDisks(&ecs.DescribeDisksArgs{
RegionId: getRegion(d, meta),
InstanceId: instanceID,
DiskIds: []string{diskID},
})
if descErr != nil {
log.Printf("[ERROR] Disk %s is not attached.", diskID)
return resource.NonRetryableError(err)
}
if disks == nil || len(disks) <= 0 {
return resource.RetryableError(fmt.Errorf("Disk in attaching - trying again while it is attached."))
}
return nil
})
}