346 lines
9.0 KiB
Go
346 lines
9.0 KiB
Go
package google
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import (
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"fmt"
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"log"
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"regexp"
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"strings"
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"github.com/hashicorp/terraform/helper/schema"
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"google.golang.org/api/compute/v1"
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"google.golang.org/api/googleapi"
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)
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const (
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computeDiskUserRegexString = "^(?:https://www.googleapis.com/compute/v1/projects/)?([-_a-zA-Z0-9]*)/zones/([-_a-zA-Z0-9]*)/instances/([-_a-zA-Z0-9]*)$"
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)
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var (
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computeDiskUserRegex = regexp.MustCompile(computeDiskUserRegexString)
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)
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func resourceComputeDisk() *schema.Resource {
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return &schema.Resource{
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Create: resourceComputeDiskCreate,
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Read: resourceComputeDiskRead,
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Update: resourceComputeDiskUpdate,
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Delete: resourceComputeDiskDelete,
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Importer: &schema.ResourceImporter{
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State: schema.ImportStatePassthrough,
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},
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Schema: map[string]*schema.Schema{
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"zone": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"disk_encryption_key_raw": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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Sensitive: true,
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},
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"disk_encryption_key_sha256": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"image": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"project": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"size": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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},
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"self_link": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"snapshot": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"type": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"users": &schema.Schema{
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Type: schema.TypeList,
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Computed: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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},
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},
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}
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}
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func resourceComputeDiskCreate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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project, err := getProject(d, config)
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if err != nil {
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return err
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}
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// Get the zone
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log.Printf("[DEBUG] Loading zone: %s", d.Get("zone").(string))
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zone, err := config.clientCompute.Zones.Get(
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project, d.Get("zone").(string)).Do()
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if err != nil {
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return fmt.Errorf(
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"Error loading zone '%s': %s", d.Get("zone").(string), err)
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}
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// Build the disk parameter
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disk := &compute.Disk{
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Name: d.Get("name").(string),
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SizeGb: int64(d.Get("size").(int)),
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}
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// If we were given a source image, load that.
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if v, ok := d.GetOk("image"); ok {
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log.Printf("[DEBUG] Resolving image name: %s", v.(string))
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imageUrl, err := resolveImage(config, v.(string))
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if err != nil {
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return fmt.Errorf(
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"Error resolving image name '%s': %s",
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v.(string), err)
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}
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disk.SourceImage = imageUrl
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log.Printf("[DEBUG] Image name resolved to: %s", imageUrl)
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}
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if v, ok := d.GetOk("type"); ok {
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log.Printf("[DEBUG] Loading disk type: %s", v.(string))
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diskType, err := readDiskType(config, zone, v.(string))
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if err != nil {
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return fmt.Errorf(
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"Error loading disk type '%s': %s",
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v.(string), err)
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}
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disk.Type = diskType.SelfLink
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}
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if v, ok := d.GetOk("snapshot"); ok {
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snapshotName := v.(string)
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match, _ := regexp.MatchString("^https://www.googleapis.com/compute", snapshotName)
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if match {
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disk.SourceSnapshot = snapshotName
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} else {
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log.Printf("[DEBUG] Loading snapshot: %s", snapshotName)
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snapshotData, err := config.clientCompute.Snapshots.Get(
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project, snapshotName).Do()
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if err != nil {
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return fmt.Errorf(
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"Error loading snapshot '%s': %s",
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snapshotName, err)
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}
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disk.SourceSnapshot = snapshotData.SelfLink
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}
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}
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if v, ok := d.GetOk("disk_encryption_key_raw"); ok {
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disk.DiskEncryptionKey = &compute.CustomerEncryptionKey{}
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disk.DiskEncryptionKey.RawKey = v.(string)
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}
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op, err := config.clientCompute.Disks.Insert(
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project, d.Get("zone").(string), disk).Do()
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if err != nil {
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return fmt.Errorf("Error creating disk: %s", err)
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}
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// It probably maybe worked, so store the ID now
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d.SetId(disk.Name)
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err = computeOperationWaitZone(config, op, project, d.Get("zone").(string), "Creating Disk")
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if err != nil {
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return err
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}
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return resourceComputeDiskRead(d, meta)
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}
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func resourceComputeDiskUpdate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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project, err := getProject(d, config)
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if err != nil {
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return err
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}
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if d.HasChange("size") {
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rb := &compute.DisksResizeRequest{
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SizeGb: int64(d.Get("size").(int)),
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}
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_, err := config.clientCompute.Disks.Resize(
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project, d.Get("zone").(string), d.Id(), rb).Do()
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if err != nil {
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return fmt.Errorf("Error resizing disk: %s", err)
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}
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}
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return nil
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}
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func resourceComputeDiskRead(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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project, err := getProject(d, config)
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if err != nil {
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return err
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}
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region, err := getRegion(d, config)
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if err != nil {
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return err
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}
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getDisk := func(zone string) (interface{}, error) {
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return config.clientCompute.Disks.Get(project, zone, d.Id()).Do()
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}
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var disk *compute.Disk
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if zone, ok := d.GetOk("zone"); ok {
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disk, err = config.clientCompute.Disks.Get(
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project, zone.(string), d.Id()).Do()
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if err != nil {
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return handleNotFoundError(err, d, fmt.Sprintf("Disk %q", d.Get("name").(string)))
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}
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} else {
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// If the resource was imported, the only info we have is the ID. Try to find the resource
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// by searching in the region of the project.
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var resource interface{}
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resource, err = getZonalResourceFromRegion(getDisk, region, config.clientCompute, project)
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if err != nil {
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return err
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}
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disk = resource.(*compute.Disk)
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}
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zoneUrlParts := strings.Split(disk.Zone, "/")
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typeUrlParts := strings.Split(disk.Type, "/")
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d.Set("name", disk.Name)
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d.Set("self_link", disk.SelfLink)
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d.Set("type", typeUrlParts[len(typeUrlParts)-1])
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d.Set("zone", zoneUrlParts[len(zoneUrlParts)-1])
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d.Set("size", disk.SizeGb)
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d.Set("users", disk.Users)
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if disk.DiskEncryptionKey != nil && disk.DiskEncryptionKey.Sha256 != "" {
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d.Set("disk_encryption_key_sha256", disk.DiskEncryptionKey.Sha256)
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}
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if disk.SourceImage != "" {
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imageUrlParts := strings.Split(disk.SourceImage, "/")
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d.Set("image", imageUrlParts[len(imageUrlParts)-1])
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}
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if disk.SourceSnapshot != "" {
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snapshotUrlParts := strings.Split(disk.SourceSnapshot, "/")
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d.Set("snapshot", snapshotUrlParts[len(snapshotUrlParts)-1])
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}
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return nil
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}
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func resourceComputeDiskDelete(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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project, err := getProject(d, config)
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if err != nil {
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return err
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}
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// if disks are attached, they must be detached before the disk can be deleted
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if instances, ok := d.Get("users").([]interface{}); ok {
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type detachArgs struct{ project, zone, instance, deviceName string }
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var detachCalls []detachArgs
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self := d.Get("self_link").(string)
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for _, instance := range instances {
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if !computeDiskUserRegex.MatchString(instance.(string)) {
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return fmt.Errorf("Unknown user %q of disk %q", instance, self)
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}
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matches := computeDiskUserRegex.FindStringSubmatch(instance.(string))
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instanceProject := matches[1]
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instanceZone := matches[2]
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instanceName := matches[3]
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i, err := config.clientCompute.Instances.Get(instanceProject, instanceZone, instanceName).Do()
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if err != nil {
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if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 {
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log.Printf("[WARN] instance %q not found, not bothering to detach disks", instance.(string))
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continue
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}
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return fmt.Errorf("Error retrieving instance %s: %s", instance.(string), err.Error())
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}
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for _, disk := range i.Disks {
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if disk.Source == self {
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detachCalls = append(detachCalls, detachArgs{
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project: project,
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zone: i.Zone,
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instance: i.Name,
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deviceName: disk.DeviceName,
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})
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}
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}
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}
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for _, call := range detachCalls {
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op, err := config.clientCompute.Instances.DetachDisk(call.project, call.zone, call.instance, call.deviceName).Do()
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if err != nil {
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return fmt.Errorf("Error detaching disk %s from instance %s/%s/%s: %s", call.deviceName, call.project,
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call.zone, call.instance, err.Error())
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}
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err = computeOperationWaitZone(config, op, call.project, call.zone,
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fmt.Sprintf("Detaching disk from %s/%s/%s", call.project, call.zone, call.instance))
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if err != nil {
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return err
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}
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}
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}
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// Delete the disk
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op, err := config.clientCompute.Disks.Delete(
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project, d.Get("zone").(string), d.Id()).Do()
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if err != nil {
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if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 {
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log.Printf("[WARN] Removing Disk %q because it's gone", d.Get("name").(string))
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// The resource doesn't exist anymore
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d.SetId("")
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return nil
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}
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return fmt.Errorf("Error deleting disk: %s", err)
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}
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zone := d.Get("zone").(string)
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err = computeOperationWaitZone(config, op, project, zone, "Deleting Disk")
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if err != nil {
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return err
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}
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d.SetId("")
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return nil
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}
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