google: Add new resource - google_compute_backend_service
This commit is contained in:
Radek Simko
Radek Simko
parent
cff26ea65a
commit
7d3976e7b6
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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 +1,410 @@
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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/resource"
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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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Fingerprint: resource.PrefixedUniqueId("tf-gce-bs-"),
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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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