Merge pull request #3038 from TimeIncOSS/f-google-backend-service
google: Add google_compute_backend_service
This commit is contained in:
Radek Simko
commit
1b59d874fb
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@ -3,6 +3,7 @@ package google
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import (
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"bytes"
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"fmt"
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"log"
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"github.com/hashicorp/terraform/helper/resource"
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"google.golang.org/api/compute/v1"
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@ -52,6 +53,8 @@ func (w *OperationWaiter) RefreshFunc() resource.StateRefreshFunc {
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return nil, "", err
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}
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log.Printf("[DEBUG] Got %q when asking for operation %q", op.Status, w.Op.Name)
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return op, op.Status, nil
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}
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}
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@ -36,6 +36,7 @@ func Provider() terraform.ResourceProvider {
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ResourcesMap: map[string]*schema.Resource{
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"google_compute_autoscaler": resourceComputeAutoscaler(),
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"google_compute_address": resourceComputeAddress(),
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"google_compute_backend_service": resourceComputeBackendService(),
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"google_compute_disk": resourceComputeDisk(),
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"google_compute_firewall": resourceComputeFirewall(),
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"google_compute_forwarding_rule": resourceComputeForwardingRule(),
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@ -0,0 +1,408 @@
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package google
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import (
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"bytes"
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"fmt"
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"log"
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"regexp"
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"time"
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"github.com/hashicorp/terraform/helper/hashcode"
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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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func resourceComputeBackendService() *schema.Resource {
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return &schema.Resource{
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Create: resourceComputeBackendServiceCreate,
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Read: resourceComputeBackendServiceRead,
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Update: resourceComputeBackendServiceUpdate,
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Delete: resourceComputeBackendServiceDelete,
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Schema: map[string]*schema.Schema{
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"backend": &schema.Schema{
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Type: schema.TypeSet,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"balancing_mode": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Default: "UTILIZATION",
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},
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"capacity_scaler": &schema.Schema{
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Type: schema.TypeFloat,
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Optional: true,
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Default: 1,
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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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},
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"group": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"max_rate": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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},
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"max_rate_per_instance": &schema.Schema{
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Type: schema.TypeFloat,
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Optional: true,
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},
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"max_utilization": &schema.Schema{
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Type: schema.TypeFloat,
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Optional: true,
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Default: 0.8,
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},
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},
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},
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Optional: true,
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Set: resourceGoogleComputeBackendServiceBackendHash,
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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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},
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"health_checks": &schema.Schema{
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Type: schema.TypeSet,
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Elem: &schema.Schema{Type: schema.TypeString},
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Required: true,
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Set: schema.HashString,
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},
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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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ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) {
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value := v.(string)
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re := `^(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)$`
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if !regexp.MustCompile(re).MatchString(value) {
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errors = append(errors, fmt.Errorf(
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"%q (%q) doesn't match regexp %q", k, value, re))
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}
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return
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},
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},
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"port_name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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"protocol": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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"timeout_sec": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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},
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"fingerprint": &schema.Schema{
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Type: schema.TypeString,
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Computed: 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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},
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}
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}
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func resourceComputeBackendServiceCreate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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hc := d.Get("health_checks").(*schema.Set).List()
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healthChecks := make([]string, 0, len(hc))
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for _, v := range hc {
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healthChecks = append(healthChecks, v.(string))
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}
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service := compute.BackendService{
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Name: d.Get("name").(string),
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HealthChecks: healthChecks,
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}
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if v, ok := d.GetOk("backend"); ok {
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service.Backends = expandBackends(v.(*schema.Set).List())
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}
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if v, ok := d.GetOk("description"); ok {
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service.Description = v.(string)
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}
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if v, ok := d.GetOk("port_name"); ok {
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service.PortName = v.(string)
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}
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if v, ok := d.GetOk("protocol"); ok {
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service.Protocol = v.(string)
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}
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if v, ok := d.GetOk("timeout_sec"); ok {
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service.TimeoutSec = int64(v.(int))
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}
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log.Printf("[DEBUG] Creating new Backend Service: %#v", service)
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op, err := config.clientCompute.BackendServices.Insert(
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config.Project, &service).Do()
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if err != nil {
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return fmt.Errorf("Error creating backend service: %s", err)
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}
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log.Printf("[DEBUG] Waiting for new backend service, operation: %#v", op)
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d.SetId(service.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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Region: config.Region,
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Type: OperationWaitGlobal,
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}
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state := w.Conf()
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state.Timeout = 2 * time.Minute
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state.MinTimeout = 1 * 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 backend service 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 resourceComputeBackendServiceRead(d, meta)
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}
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func resourceComputeBackendServiceRead(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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service, err := config.clientCompute.BackendServices.Get(
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config.Project, 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 service: %s", err)
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}
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d.Set("description", service.Description)
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d.Set("port_name", service.PortName)
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d.Set("protocol", service.Protocol)
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d.Set("timeout_sec", service.TimeoutSec)
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d.Set("fingerprint", service.Fingerprint)
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d.Set("self_link", service.SelfLink)
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d.Set("backend", flattenBackends(service.Backends))
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d.Set("health_checks", service.HealthChecks)
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return nil
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}
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func resourceComputeBackendServiceUpdate(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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hc := d.Get("health_checks").(*schema.Set).List()
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healthChecks := make([]string, 0, len(hc))
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for _, v := range hc {
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healthChecks = append(healthChecks, v.(string))
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}
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service := compute.BackendService{
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Name: d.Get("name").(string),
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Fingerprint: d.Get("fingerprint").(string),
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HealthChecks: healthChecks,
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}
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if d.HasChange("backend") {
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service.Backends = expandBackends(d.Get("backend").(*schema.Set).List())
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}
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if d.HasChange("description") {
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service.Description = d.Get("description").(string)
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}
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if d.HasChange("port_name") {
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service.PortName = d.Get("port_name").(string)
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}
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if d.HasChange("protocol") {
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service.Protocol = d.Get("protocol").(string)
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}
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if d.HasChange("timeout_sec") {
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service.TimeoutSec = int64(d.Get("timeout_sec").(int))
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}
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log.Printf("[DEBUG] Updating existing Backend Service %q: %#v", d.Id(), service)
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op, err := config.clientCompute.BackendServices.Update(
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config.Project, d.Id(), &service).Do()
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if err != nil {
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return fmt.Errorf("Error updating backend service: %s", err)
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}
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d.SetId(service.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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Region: config.Region,
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Type: OperationWaitGlobal,
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}
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state := w.Conf()
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state.Timeout = 2 * time.Minute
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state.MinTimeout = 1 * 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 backend service 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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return resourceComputeBackendServiceRead(d, meta)
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}
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func resourceComputeBackendServiceDelete(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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log.Printf("[DEBUG] Deleting backend service %s", d.Id())
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op, err := config.clientCompute.BackendServices.Delete(
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config.Project, d.Id()).Do()
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if err != nil {
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return fmt.Errorf("Error deleting backend service: %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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Region: config.Region,
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Type: OperationWaitGlobal,
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}
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state := w.Conf()
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state.Timeout = 2 * time.Minute
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state.MinTimeout = 1 * 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 backend service 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 expandBackends(configured []interface{}) []*compute.Backend {
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backends := make([]*compute.Backend, 0, len(configured))
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for _, raw := range configured {
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data := raw.(map[string]interface{})
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b := compute.Backend{
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Group: data["group"].(string),
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}
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if v, ok := data["balancing_mode"]; ok {
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b.BalancingMode = v.(string)
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}
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if v, ok := data["capacity_scaler"]; ok {
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b.CapacityScaler = v.(float64)
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}
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if v, ok := data["description"]; ok {
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b.Description = v.(string)
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}
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if v, ok := data["max_rate"]; ok {
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b.MaxRate = int64(v.(int))
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}
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if v, ok := data["max_rate_per_instance"]; ok {
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b.MaxRatePerInstance = v.(float64)
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}
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if v, ok := data["max_rate_per_instance"]; ok {
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b.MaxUtilization = v.(float64)
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}
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backends = append(backends, &b)
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}
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return backends
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}
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func flattenBackends(backends []*compute.Backend) []map[string]interface{} {
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result := make([]map[string]interface{}, 0, len(backends))
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for _, b := range backends {
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data := make(map[string]interface{})
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data["balancing_mode"] = b.BalancingMode
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data["capacity_scaler"] = b.CapacityScaler
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data["description"] = b.Description
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data["group"] = b.Group
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data["max_rate"] = b.MaxRate
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data["max_rate_per_instance"] = b.MaxRatePerInstance
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data["max_utilization"] = b.MaxUtilization
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result = append(result, data)
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}
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return result
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}
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func resourceGoogleComputeBackendServiceBackendHash(v interface{}) int {
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if v == nil {
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return 0
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}
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var buf bytes.Buffer
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m := v.(map[string]interface{})
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buf.WriteString(fmt.Sprintf("%s-", m["group"].(string)))
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if v, ok := m["balancing_mode"]; ok {
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buf.WriteString(fmt.Sprintf("%s-", v.(string)))
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}
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if v, ok := m["capacity_scaler"]; ok {
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buf.WriteString(fmt.Sprintf("%f-", v.(float64)))
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}
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if v, ok := m["description"]; ok {
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buf.WriteString(fmt.Sprintf("%s-", v.(string)))
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}
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if v, ok := m["max_rate"]; ok {
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buf.WriteString(fmt.Sprintf("%d-", int64(v.(int))))
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}
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if v, ok := m["max_rate_per_instance"]; ok {
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buf.WriteString(fmt.Sprintf("%f-", v.(float64)))
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}
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if v, ok := m["max_rate_per_instance"]; ok {
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buf.WriteString(fmt.Sprintf("%f-", v.(float64)))
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}
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return hashcode.String(buf.String())
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}
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|
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@ -0,0 +1,193 @@
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package google
|
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|
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import (
|
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"fmt"
|
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"testing"
|
||||
|
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"github.com/hashicorp/terraform/helper/resource"
|
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"github.com/hashicorp/terraform/terraform"
|
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"google.golang.org/api/compute/v1"
|
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)
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func TestAccComputeBackendService_basic(t *testing.T) {
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var svc compute.BackendService
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckComputeBackendServiceDestroy,
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Steps: []resource.TestStep{
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resource.TestStep{
|
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Config: testAccComputeBackendService_basic,
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Check: resource.ComposeTestCheckFunc(
|
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testAccCheckComputeBackendServiceExists(
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"google_compute_backend_service.foobar", &svc),
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),
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},
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resource.TestStep{
|
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Config: testAccComputeBackendService_basicModified,
|
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Check: resource.ComposeTestCheckFunc(
|
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testAccCheckComputeBackendServiceExists(
|
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"google_compute_backend_service.foobar", &svc),
|
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),
|
||||
},
|
||||
},
|
||||
})
|
||||
}
|
||||
|
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func TestAccComputeBackendService_withBackend(t *testing.T) {
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var svc compute.BackendService
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resource.Test(t, resource.TestCase{
|
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
|
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CheckDestroy: testAccCheckComputeBackendServiceDestroy,
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Steps: []resource.TestStep{
|
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resource.TestStep{
|
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Config: testAccComputeBackendService_withBackend,
|
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Check: resource.ComposeTestCheckFunc(
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testAccCheckComputeBackendServiceExists(
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"google_compute_backend_service.lipsum", &svc),
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),
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},
|
||||
},
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})
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|
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if svc.TimeoutSec != 10 {
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t.Errorf("Expected TimeoutSec == 10, got %d", svc.TimeoutSec)
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}
|
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if svc.Protocol != "HTTP" {
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t.Errorf("Expected Protocol to be HTTP, got %q", svc.Protocol)
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}
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if len(svc.Backends) != 1 {
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t.Errorf("Expected 1 backend, got %d", len(svc.Backends))
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}
|
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}
|
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|
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func testAccCheckComputeBackendServiceDestroy(s *terraform.State) error {
|
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config := testAccProvider.Meta().(*Config)
|
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|
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for _, rs := range s.RootModule().Resources {
|
||||
if rs.Type != "google_compute_backend_service" {
|
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continue
|
||||
}
|
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|
||||
_, err := config.clientCompute.BackendServices.Get(
|
||||
config.Project, rs.Primary.ID).Do()
|
||||
if err == nil {
|
||||
return fmt.Errorf("Backend service still exists")
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func testAccCheckComputeBackendServiceExists(n string, svc *compute.BackendService) resource.TestCheckFunc {
|
||||
return func(s *terraform.State) error {
|
||||
rs, ok := s.RootModule().Resources[n]
|
||||
if !ok {
|
||||
return fmt.Errorf("Not found: %s", n)
|
||||
}
|
||||
|
||||
if rs.Primary.ID == "" {
|
||||
return fmt.Errorf("No ID is set")
|
||||
}
|
||||
|
||||
config := testAccProvider.Meta().(*Config)
|
||||
|
||||
found, err := config.clientCompute.BackendServices.Get(
|
||||
config.Project, rs.Primary.ID).Do()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if found.Name != rs.Primary.ID {
|
||||
return fmt.Errorf("Backend service not found")
|
||||
}
|
||||
|
||||
*svc = *found
|
||||
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
const testAccComputeBackendService_basic = `
|
||||
resource "google_compute_backend_service" "foobar" {
|
||||
name = "blablah"
|
||||
health_checks = ["${google_compute_http_health_check.zero.self_link}"]
|
||||
}
|
||||
|
||||
resource "google_compute_http_health_check" "zero" {
|
||||
name = "tf-test-zero"
|
||||
request_path = "/"
|
||||
check_interval_sec = 1
|
||||
timeout_sec = 1
|
||||
}
|
||||
`
|
||||
|
||||
const testAccComputeBackendService_basicModified = `
|
||||
resource "google_compute_backend_service" "foobar" {
|
||||
name = "blablah"
|
||||
health_checks = ["${google_compute_http_health_check.one.self_link}"]
|
||||
}
|
||||
|
||||
resource "google_compute_http_health_check" "zero" {
|
||||
name = "tf-test-zero"
|
||||
request_path = "/"
|
||||
check_interval_sec = 1
|
||||
timeout_sec = 1
|
||||
}
|
||||
|
||||
resource "google_compute_http_health_check" "one" {
|
||||
name = "tf-test-one"
|
||||
request_path = "/one"
|
||||
check_interval_sec = 30
|
||||
timeout_sec = 30
|
||||
}
|
||||
`
|
||||
|
||||
const testAccComputeBackendService_withBackend = `
|
||||
resource "google_compute_backend_service" "lipsum" {
|
||||
name = "hello-world-bs"
|
||||
description = "Hello World 1234"
|
||||
port_name = "http"
|
||||
protocol = "HTTP"
|
||||
timeout_sec = 10
|
||||
|
||||
backend {
|
||||
group = "${google_compute_instance_group_manager.foobar.instance_group}"
|
||||
}
|
||||
|
||||
health_checks = ["${google_compute_http_health_check.default.self_link}"]
|
||||
}
|
||||
|
||||
resource "google_compute_instance_group_manager" "foobar" {
|
||||
name = "terraform-test"
|
||||
instance_template = "${google_compute_instance_template.foobar.self_link}"
|
||||
base_instance_name = "foobar"
|
||||
zone = "us-central1-f"
|
||||
target_size = 1
|
||||
}
|
||||
|
||||
resource "google_compute_instance_template" "foobar" {
|
||||
name = "terraform-test"
|
||||
machine_type = "n1-standard-1"
|
||||
|
||||
network_interface {
|
||||
network = "default"
|
||||
}
|
||||
|
||||
disk {
|
||||
source_image = "debian-7-wheezy-v20140814"
|
||||
auto_delete = true
|
||||
boot = true
|
||||
}
|
||||
}
|
||||
|
||||
resource "google_compute_http_health_check" "default" {
|
||||
name = "test2"
|
||||
request_path = "/"
|
||||
check_interval_sec = 1
|
||||
timeout_sec = 1
|
||||
}
|
||||
`
|
||||
|
|
@ -0,0 +1,92 @@
|
|||
---
|
||||
layout: "google"
|
||||
page_title: "Google: google_compute_backend_service"
|
||||
sidebar_current: "docs-google-resource-backend-service"
|
||||
description: |-
|
||||
Creates a Backend Service resource for Google Compute Engine.
|
||||
---
|
||||
|
||||
# google\_compute\_backend\_service
|
||||
|
||||
A Backend Service defines a group of virtual machines that will serve traffic for load balancing.
|
||||
|
||||
## Example Usage
|
||||
|
||||
```
|
||||
resource "google_compute_backend_service" "foobar" {
|
||||
name = "blablah"
|
||||
description = "Hello World 1234"
|
||||
port_name = "http"
|
||||
protocol = "HTTP"
|
||||
timeout_sec = 10
|
||||
|
||||
backend {
|
||||
group = "${google_compute_instance_group_manager.foo.instance_group}"
|
||||
}
|
||||
|
||||
health_checks = ["${google_compute_http_health_check.default.self_link}"]
|
||||
}
|
||||
|
||||
resource "google_compute_instance_group_manager" "foo" {
|
||||
name = "terraform-test"
|
||||
instance_template = "${google_compute_instance_template.foobar.self_link}"
|
||||
base_instance_name = "foobar"
|
||||
zone = "us-central1-f"
|
||||
target_size = 1
|
||||
}
|
||||
|
||||
resource "google_compute_instance_template" "foobar" {
|
||||
name = "terraform-test"
|
||||
machine_type = "n1-standard-1"
|
||||
|
||||
network_interface {
|
||||
network = "default"
|
||||
}
|
||||
|
||||
disk {
|
||||
source_image = "debian-7-wheezy-v20140814"
|
||||
auto_delete = true
|
||||
boot = true
|
||||
}
|
||||
}
|
||||
|
||||
resource "google_compute_http_health_check" "default" {
|
||||
name = "test"
|
||||
request_path = "/"
|
||||
check_interval_sec = 1
|
||||
timeout_sec = 1
|
||||
}
|
||||
```
|
||||
|
||||
## Argument Reference
|
||||
|
||||
The following arguments are supported:
|
||||
|
||||
* `name` - (Required) The name of the backend service.
|
||||
* `health_checks` - (Required) Specifies a list of HTTP health check objects
|
||||
for checking the health of the backend service.
|
||||
* `description` - (Optional) The textual description for the backend service.
|
||||
* `backend` - (Optional) The list of backends that serve this BackendService. See *Backend* below.
|
||||
* `port_name` - (Optional) The name of a service that has been added to
|
||||
an instance group in this backend. See [related docs](https://cloud.google.com/compute/docs/instance-groups/#specifying_service_endpoints)
|
||||
for details. Defaults to http.
|
||||
* `protocol` - (Optional) The protocol for incoming requests. Defaults to `HTTP`.
|
||||
* `timeout_sec` - (Optional) The number of secs to wait for a backend to respond
|
||||
to a request before considering the request failed. Defaults to `30`.
|
||||
|
||||
**Backend** supports the following attributes:
|
||||
|
||||
* `group` - (Required) The name or URI of a Compute Engine instance group (`google_compute_instance_group_manager.xyz.instance_group`) that can receive traffic.
|
||||
* `balancing_mode` - (Optional) Defines the strategy for balancing load. Defaults to `UTILIZATION`
|
||||
* `capacity_scaler` - (Optional) A float in the range [0, 1.0] that scales the maximum parameters for the group (e.g., max rate). A value of 0.0 will cause no requests to be sent to the group (i.e., it adds the group in a drained state). The default is 1.0.
|
||||
* `description` - (Optional) Textual description for the backend.
|
||||
* `max_rate` - (Optional) Maximum requests per second (RPS) that the group can handle.
|
||||
* `max_rate_per_instance` - (Optional) The maximum per-instance requests per second (RPS).
|
||||
* `max_utilization` - (Optional) The target CPU utilization for the group as a float in the range [0.0, 1.0]. This flag can only be provided when the balancing mode is `UTILIZATION`. Defaults to `0.8`.
|
||||
|
||||
## Attributes Reference
|
||||
|
||||
The following attributes are exported:
|
||||
|
||||
* `name` - The name of the resource.
|
||||
* `self_link` - The URI of the created resource.
|
||||
|
|
@ -21,6 +21,10 @@
|
|||
<a href="/docs/providers/google/r/compute_autoscaler.html">google_compute_autoscaler</a>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-google-resource-backend-service") %>>
|
||||
<a href="/docs/providers/google/r/compute_backend_service.html">google_compute_backend_service</a>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-google-resource-disk") %>>
|
||||
<a href="/docs/providers/google/r/compute_disk.html">google_compute_disk</a>
|
||||
</li>
|
||||
|
|
|
|||
Loading…
Reference in New Issue