480 lines
12 KiB
Go
480 lines
12 KiB
Go
package google
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import (
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"fmt"
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"log"
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"time"
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"code.google.com/p/google-api-go-client/compute/v1"
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"code.google.com/p/google-api-go-client/googleapi"
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"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceComputeInstance() *schema.Resource {
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return &schema.Resource{
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Create: resourceComputeInstanceCreate,
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Read: resourceComputeInstanceRead,
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Update: resourceComputeInstanceUpdate,
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Delete: resourceComputeInstanceDelete,
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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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"description": &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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"machine_type": &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": &schema.Schema{
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Type: schema.TypeList,
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Required: true,
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ForceNew: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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// TODO(mitchellh): one of image or disk is required
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"disk": &schema.Schema{
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Type: schema.TypeString,
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Optional: 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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},
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"auto_delete": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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},
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},
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},
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},
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"network": &schema.Schema{
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Type: schema.TypeList,
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Required: true,
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ForceNew: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"source": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"address": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"name": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"internal_address": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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},
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},
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},
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"metadata": &schema.Schema{
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Type: schema.TypeList,
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Optional: true,
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Elem: &schema.Schema{
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Type: schema.TypeMap,
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},
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},
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"tags": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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Set: func(v interface{}) int {
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return hashcode.String(v.(string))
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},
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},
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"metadata_fingerprint": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"tags_fingerprint": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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},
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}
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}
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func resourceComputeInstanceCreate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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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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config.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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// Get the machine type
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log.Printf("[DEBUG] Loading machine type: %s", d.Get("machine_type").(string))
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machineType, err := config.clientCompute.MachineTypes.Get(
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config.Project, zone.Name, d.Get("machine_type").(string)).Do()
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if err != nil {
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return fmt.Errorf(
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"Error loading machine type: %s",
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err)
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}
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// Build up the list of disks
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disksCount := d.Get("disk.#").(int)
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disks := make([]*compute.AttachedDisk, 0, disksCount)
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for i := 0; i < disksCount; i++ {
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prefix := fmt.Sprintf("disk.%d", i)
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// var sourceLink string
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// Build the disk
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var disk compute.AttachedDisk
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disk.Type = "PERSISTENT"
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disk.Mode = "READ_WRITE"
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disk.Boot = i == 0
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disk.AutoDelete = true
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if v, ok := d.GetOk(prefix + ".auto_delete"); ok {
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disk.AutoDelete = v.(bool)
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}
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// Load up the disk for this disk if specified
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if v, ok := d.GetOk(prefix + ".disk"); ok {
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diskName := v.(string)
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diskData, err := config.clientCompute.Disks.Get(
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config.Project, zone.Name, diskName).Do()
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if err != nil {
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return fmt.Errorf(
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"Error loading disk '%s': %s",
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diskName, err)
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}
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disk.Source = diskData.SelfLink
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}
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// Load up the image for this disk if specified
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if v, ok := d.GetOk(prefix + ".image"); ok {
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imageName := v.(string)
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image, err := readImage(config, imageName)
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if err != nil {
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return fmt.Errorf(
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"Error loading image '%s': %s",
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imageName, err)
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}
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disk.InitializeParams = &compute.AttachedDiskInitializeParams{
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SourceImage: image.SelfLink,
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}
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}
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disks = append(disks, &disk)
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}
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// Build up the list of networks
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networksCount := d.Get("network.#").(int)
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networks := make([]*compute.NetworkInterface, 0, networksCount)
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for i := 0; i < networksCount; i++ {
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prefix := fmt.Sprintf("network.%d", i)
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// Load up the name of this network
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networkName := d.Get(prefix + ".source").(string)
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network, err := config.clientCompute.Networks.Get(
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config.Project, networkName).Do()
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if err != nil {
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return fmt.Errorf(
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"Error loading network '%s': %s",
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networkName, err)
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}
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// Build the disk
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var iface compute.NetworkInterface
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iface.AccessConfigs = []*compute.AccessConfig{
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&compute.AccessConfig{
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Type: "ONE_TO_ONE_NAT",
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NatIP: d.Get(prefix + ".address").(string),
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},
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}
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iface.Network = network.SelfLink
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networks = append(networks, &iface)
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}
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// Create the instance information
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instance := compute.Instance{
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Description: d.Get("description").(string),
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Disks: disks,
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MachineType: machineType.SelfLink,
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Metadata: resourceInstanceMetadata(d),
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Name: d.Get("name").(string),
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NetworkInterfaces: networks,
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Tags: resourceInstanceTags(d),
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/*
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ServiceAccounts: []*compute.ServiceAccount{
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&compute.ServiceAccount{
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Email: "default",
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Scopes: []string{
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"https://www.googleapis.com/auth/userinfo.email",
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"https://www.googleapis.com/auth/compute",
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"https://www.googleapis.com/auth/devstorage.full_control",
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},
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},
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},
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*/
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}
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log.Printf("[INFO] Requesting instance creation")
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op, err := config.clientCompute.Instances.Insert(
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config.Project, zone.Name, &instance).Do()
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if err != nil {
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return fmt.Errorf("Error creating instance: %s", err)
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}
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// Store the ID now
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d.SetId(instance.Name)
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// Wait for the operation to complete
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w := &OperationWaiter{
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Service: config.clientCompute,
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Op: op,
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Project: config.Project,
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Zone: zone.Name,
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Type: OperationWaitZone,
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}
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state := w.Conf()
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state.Delay = 10 * time.Second
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state.Timeout = 10 * time.Minute
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state.MinTimeout = 2 * time.Second
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opRaw, err := state.WaitForState()
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if err != nil {
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return fmt.Errorf("Error waiting for instance to create: %s", err)
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}
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op = opRaw.(*compute.Operation)
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if op.Error != nil {
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// The resource didn't actually create
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d.SetId("")
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// Return the error
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return OperationError(*op.Error)
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}
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return resourceComputeInstanceRead(d, meta)
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}
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func resourceComputeInstanceRead(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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instance, err := config.clientCompute.Instances.Get(
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config.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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// 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 reading instance: %s", err)
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}
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// Set the networks
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for i, iface := range instance.NetworkInterfaces {
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prefix := fmt.Sprintf("network.%d", i)
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d.Set(prefix+".name", iface.Name)
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d.Set(prefix+".internal_address", iface.NetworkIP)
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}
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// Set the metadata fingerprint if there is one.
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if instance.Metadata != nil {
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d.Set("metadata_fingerprint", instance.Metadata.Fingerprint)
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}
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// Set the tags fingerprint if there is one.
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if instance.Tags != nil {
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d.Set("tags_fingerprint", instance.Tags.Fingerprint)
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}
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return nil
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}
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func resourceComputeInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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// Enable partial mode for the resource since it is possible
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d.Partial(true)
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// If the Metadata has changed, then update that.
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if d.HasChange("metadata") {
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metadata := resourceInstanceMetadata(d)
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op, err := config.clientCompute.Instances.SetMetadata(
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config.Project, d.Get("zone").(string), d.Id(), metadata).Do()
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if err != nil {
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return fmt.Errorf("Error updating metadata: %s", err)
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}
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w := &OperationWaiter{
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Service: config.clientCompute,
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Op: op,
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Project: config.Project,
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Zone: d.Get("zone").(string),
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Type: OperationWaitZone,
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}
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state := w.Conf()
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state.Delay = 1 * time.Second
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state.Timeout = 5 * time.Minute
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state.MinTimeout = 2 * time.Second
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opRaw, err := state.WaitForState()
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if err != nil {
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return fmt.Errorf("Error waiting for metadata to update: %s", err)
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}
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op = opRaw.(*compute.Operation)
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if op.Error != nil {
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// Return the error
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return OperationError(*op.Error)
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}
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d.SetPartial("metadata")
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}
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if d.HasChange("tags") {
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tags := resourceInstanceTags(d)
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op, err := config.clientCompute.Instances.SetTags(
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config.Project, d.Get("zone").(string), d.Id(), tags).Do()
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if err != nil {
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return fmt.Errorf("Error updating tags: %s", err)
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}
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w := &OperationWaiter{
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Service: config.clientCompute,
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Op: op,
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Project: config.Project,
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Zone: d.Get("zone").(string),
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Type: OperationWaitZone,
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}
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state := w.Conf()
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state.Delay = 1 * time.Second
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state.Timeout = 5 * time.Minute
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state.MinTimeout = 2 * time.Second
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opRaw, err := state.WaitForState()
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if err != nil {
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return fmt.Errorf("Error waiting for tags to update: %s", err)
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}
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op = opRaw.(*compute.Operation)
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if op.Error != nil {
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// Return the error
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return OperationError(*op.Error)
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}
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d.SetPartial("tags")
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}
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// We made it, disable partial mode
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d.Partial(false)
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return resourceComputeInstanceRead(d, meta)
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}
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func resourceComputeInstanceDelete(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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op, err := config.clientCompute.Instances.Delete(
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config.Project, d.Get("zone").(string), d.Id()).Do()
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if err != nil {
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return fmt.Errorf("Error deleting instance: %s", err)
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}
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// Wait for the operation to complete
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w := &OperationWaiter{
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Service: config.clientCompute,
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Op: op,
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Project: config.Project,
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Zone: d.Get("zone").(string),
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Type: OperationWaitZone,
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}
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state := w.Conf()
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state.Delay = 5 * time.Second
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state.Timeout = 5 * time.Minute
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state.MinTimeout = 2 * time.Second
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opRaw, err := state.WaitForState()
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if err != nil {
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return fmt.Errorf("Error waiting for instance to delete: %s", err)
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}
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op = opRaw.(*compute.Operation)
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if op.Error != nil {
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// Return the error
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return OperationError(*op.Error)
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}
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d.SetId("")
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return nil
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}
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func resourceInstanceMetadata(d *schema.ResourceData) *compute.Metadata {
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var metadata *compute.Metadata
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if v := d.Get("metadata").([]interface{}); len(v) > 0 {
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m := new(compute.Metadata)
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m.Items = make([]*compute.MetadataItems, 0, len(v))
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for _, v := range v {
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for k, v := range v.(map[string]interface{}) {
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m.Items = append(m.Items, &compute.MetadataItems{
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Key: k,
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Value: v.(string),
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})
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}
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}
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// Set the fingerprint. If the metadata has never been set before
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// then this will just be blank.
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m.Fingerprint = d.Get("metadata_fingerprint").(string)
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metadata = m
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}
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return metadata
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}
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func resourceInstanceTags(d *schema.ResourceData) *compute.Tags {
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// Calculate the tags
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var tags *compute.Tags
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if v := d.Get("tags"); v != nil {
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vs := v.(*schema.Set).List()
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tags = new(compute.Tags)
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tags.Items = make([]string, len(vs))
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for i, v := range v.(*schema.Set).List() {
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tags.Items[i] = v.(string)
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}
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tags.Fingerprint = d.Get("tags_fingerprint").(string)
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}
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return tags
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}
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