func TestServersActionChangeAdminPassword(t *testing.T) {
	t.Parallel()

	client, err := clients.NewComputeV2Client()
	if err != nil {
		t.Fatalf("Unable to create a compute client: %v", err)
	}

	choices, err := clients.AcceptanceTestChoicesFromEnv()
	if err != nil {
		t.Fatal(err)
	}

	server, err := CreateServer(t, client, choices)
	if err != nil {
		t.Fatal(err)
	}
	defer DeleteServer(t, client, server)

	randomPassword := tools.MakeNewPassword(server.AdminPass)
	res := servers.ChangeAdminPassword(client, server.ID, randomPassword)
	if res.Err != nil {
		t.Fatal(res.Err)
	}

	if err = WaitForComputeStatus(client, server, "PASSWORD"); err != nil {
		t.Fatal(err)
	}

	if err = WaitForComputeStatus(client, server, "ACTIVE"); err != nil {
		t.Fatal(err)
	}
}
func TestChangeServerAdminPassword(t *testing.T) {
	th.SetupHTTP()
	defer th.TeardownHTTP()
	HandleAdminPasswordChangeSuccessfully(t)

	res := servers.ChangeAdminPassword(client.ServiceClient(), "1234asdf", "new-password")
	th.AssertNoErr(t, res.Err)
}
func resourceComputeInstanceV2Update(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	computeClient, err := config.computeV2Client(GetRegion(d))
	if err != nil {
		return fmt.Errorf("Error creating OpenStack compute client: %s", err)
	}

	var updateOpts servers.UpdateOpts
	if d.HasChange("name") {
		updateOpts.Name = d.Get("name").(string)
	}

	if updateOpts != (servers.UpdateOpts{}) {
		_, err := servers.Update(computeClient, d.Id(), updateOpts).Extract()
		if err != nil {
			return fmt.Errorf("Error updating OpenStack server: %s", err)
		}
	}

	if d.HasChange("metadata") {
		oldMetadata, newMetadata := d.GetChange("metadata")
		var metadataToDelete []string

		// Determine if any metadata keys were removed from the configuration.
		// Then request those keys to be deleted.
		for oldKey, _ := range oldMetadata.(map[string]interface{}) {
			var found bool
			for newKey, _ := range newMetadata.(map[string]interface{}) {
				if oldKey == newKey {
					found = true
				}
			}

			if !found {
				metadataToDelete = append(metadataToDelete, oldKey)
			}
		}

		for _, key := range metadataToDelete {
			err := servers.DeleteMetadatum(computeClient, d.Id(), key).ExtractErr()
			if err != nil {
				return fmt.Errorf("Error deleting metadata (%s) from server (%s): %s", key, d.Id(), err)
			}
		}

		// Update existing metadata and add any new metadata.
		metadataOpts := make(servers.MetadataOpts)
		for k, v := range newMetadata.(map[string]interface{}) {
			metadataOpts[k] = v.(string)
		}

		_, err := servers.UpdateMetadata(computeClient, d.Id(), metadataOpts).Extract()
		if err != nil {
			return fmt.Errorf("Error updating OpenStack server (%s) metadata: %s", d.Id(), err)
		}
	}

	if d.HasChange("security_groups") {
		oldSGRaw, newSGRaw := d.GetChange("security_groups")
		oldSGSet := oldSGRaw.(*schema.Set)
		newSGSet := newSGRaw.(*schema.Set)
		secgroupsToAdd := newSGSet.Difference(oldSGSet)
		secgroupsToRemove := oldSGSet.Difference(newSGSet)

		log.Printf("[DEBUG] Security groups to add: %v", secgroupsToAdd)

		log.Printf("[DEBUG] Security groups to remove: %v", secgroupsToRemove)

		for _, g := range secgroupsToRemove.List() {
			err := secgroups.RemoveServer(computeClient, d.Id(), g.(string)).ExtractErr()
			if err != nil && err.Error() != "EOF" {
				if _, ok := err.(gophercloud.ErrDefault404); ok {
					continue
				}

				return fmt.Errorf("Error removing security group (%s) from OpenStack server (%s): %s", g, d.Id(), err)
			} else {
				log.Printf("[DEBUG] Removed security group (%s) from instance (%s)", g, d.Id())
			}
		}

		for _, g := range secgroupsToAdd.List() {
			err := secgroups.AddServer(computeClient, d.Id(), g.(string)).ExtractErr()
			if err != nil && err.Error() != "EOF" {
				return fmt.Errorf("Error adding security group (%s) to OpenStack server (%s): %s", g, d.Id(), err)
			}
			log.Printf("[DEBUG] Added security group (%s) to instance (%s)", g, d.Id())
		}
	}

	if d.HasChange("admin_pass") {
		if newPwd, ok := d.Get("admin_pass").(string); ok {
			err := servers.ChangeAdminPassword(computeClient, d.Id(), newPwd).ExtractErr()
			if err != nil {
				return fmt.Errorf("Error changing admin password of OpenStack server (%s): %s", d.Id(), err)
			}
		}
	}

	if d.HasChange("floating_ip") {
		oldFIP, newFIP := d.GetChange("floating_ip")
		log.Printf("[DEBUG] Old Floating IP: %v", oldFIP)
		log.Printf("[DEBUG] New Floating IP: %v", newFIP)
		if oldFIP.(string) != "" {
			log.Printf("[DEBUG] Attempting to disassociate %s from %s", oldFIP, d.Id())
			if err := disassociateFloatingIPFromInstance(computeClient, oldFIP.(string), d.Id(), ""); err != nil {
				return fmt.Errorf("Error disassociating Floating IP during update: %s", err)
			}
		}

		if newFIP.(string) != "" {
			log.Printf("[DEBUG] Attempting to associate %s to %s", newFIP, d.Id())
			if err := associateFloatingIPToInstance(computeClient, newFIP.(string), d.Id(), ""); err != nil {
				return fmt.Errorf("Error associating Floating IP during update: %s", err)
			}
		}
	}

	if d.HasChange("network") {
		oldNetworks, newNetworks := d.GetChange("network")
		oldNetworkList := oldNetworks.([]interface{})
		newNetworkList := newNetworks.([]interface{})
		for i, oldNet := range oldNetworkList {
			var oldFIP, newFIP string
			var oldFixedIP, newFixedIP string

			if oldNetRaw, ok := oldNet.(map[string]interface{}); ok {
				oldFIP = oldNetRaw["floating_ip"].(string)
				oldFixedIP = oldNetRaw["fixed_ip_v4"].(string)
			}

			if len(newNetworkList) > i {
				if newNetRaw, ok := newNetworkList[i].(map[string]interface{}); ok {
					newFIP = newNetRaw["floating_ip"].(string)
					newFixedIP = newNetRaw["fixed_ip_v4"].(string)
				}
			}

			// Only changes to the floating IP are supported
			if oldFIP != "" && oldFIP != newFIP {
				log.Printf("[DEBUG] Attempting to disassociate %s from %s", oldFIP, d.Id())
				if err := disassociateFloatingIPFromInstance(computeClient, oldFIP, d.Id(), oldFixedIP); err != nil {
					return fmt.Errorf("Error disassociating Floating IP during update: %s", err)
				}
			}

			if newFIP != "" && oldFIP != newFIP {
				log.Printf("[DEBUG] Attempting to associate %s to %s", newFIP, d.Id())
				if err := associateFloatingIPToInstance(computeClient, newFIP, d.Id(), newFixedIP); err != nil {
					return fmt.Errorf("Error associating Floating IP during update: %s", err)
				}
			}
		}
	}

	if d.HasChange("volume") {
		// old attachments and new attachments
		oldAttachments, newAttachments := d.GetChange("volume")
		// for each old attachment, detach the volume
		oldAttachmentSet := oldAttachments.(*schema.Set).List()

		log.Printf("[DEBUG] Attempting to detach the following volumes: %#v", oldAttachmentSet)
		if blockClient, err := config.blockStorageV1Client(GetRegion(d)); err != nil {
			return err
		} else {
			if err := detachVolumesFromInstance(computeClient, blockClient, d.Id(), oldAttachmentSet); err != nil {
				return err
			}
		}

		// for each new attachment, attach the volume
		newAttachmentSet := newAttachments.(*schema.Set).List()
		if blockClient, err := config.blockStorageV1Client(GetRegion(d)); err != nil {
			return err
		} else {
			if err := attachVolumesToInstance(computeClient, blockClient, d.Id(), newAttachmentSet); err != nil {
				return err
			}
		}

		d.SetPartial("volume")
	}

	if d.HasChange("flavor_id") || d.HasChange("flavor_name") {
		var newFlavorId string
		var err error
		if d.HasChange("flavor_id") {
			newFlavorId = d.Get("flavor_id").(string)
		} else {
			newFlavorName := d.Get("flavor_name").(string)
			newFlavorId, err = flavors.IDFromName(computeClient, newFlavorName)
			if err != nil {
				return err
			}
		}

		resizeOpts := &servers.ResizeOpts{
			FlavorRef: newFlavorId,
		}
		log.Printf("[DEBUG] Resize configuration: %#v", resizeOpts)
		err = servers.Resize(computeClient, d.Id(), resizeOpts).ExtractErr()
		if err != nil {
			return fmt.Errorf("Error resizing OpenStack server: %s", err)
		}

		// Wait for the instance to finish resizing.
		log.Printf("[DEBUG] Waiting for instance (%s) to finish resizing", d.Id())

		stateConf := &resource.StateChangeConf{
			Pending:    []string{"RESIZE"},
			Target:     []string{"VERIFY_RESIZE"},
			Refresh:    ServerV2StateRefreshFunc(computeClient, d.Id()),
			Timeout:    30 * time.Minute,
			Delay:      10 * time.Second,
			MinTimeout: 3 * time.Second,
		}

		_, err = stateConf.WaitForState()
		if err != nil {
			return fmt.Errorf("Error waiting for instance (%s) to resize: %s", d.Id(), err)
		}

		// Confirm resize.
		log.Printf("[DEBUG] Confirming resize")
		err = servers.ConfirmResize(computeClient, d.Id()).ExtractErr()
		if err != nil {
			return fmt.Errorf("Error confirming resize of OpenStack server: %s", err)
		}

		stateConf = &resource.StateChangeConf{
			Pending:    []string{"VERIFY_RESIZE"},
			Target:     []string{"ACTIVE"},
			Refresh:    ServerV2StateRefreshFunc(computeClient, d.Id()),
			Timeout:    30 * time.Minute,
			Delay:      10 * time.Second,
			MinTimeout: 3 * time.Second,
		}

		_, err = stateConf.WaitForState()
		if err != nil {
			return fmt.Errorf("Error waiting for instance (%s) to confirm resize: %s", d.Id(), err)
		}
	}

	return resourceComputeInstanceV2Read(d, meta)
}