Add InstanceGroupManager to GCE.

This commit is contained in:
David Watson 2015-02-16 16:06:23 +00:00
parent 3339593292
commit 07b44a816a
5 changed files with 751 additions and 12 deletions

View File

@ -8,13 +8,13 @@ import (
"os"
"code.google.com/p/google-api-go-client/compute/v1"
"code.google.com/p/google-api-go-client/replicapool/v1beta2"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"golang.org/x/oauth2/jwt"
)
// Config is the configuration structure used to instantiate the Google
// provider.
type Config struct {
@ -22,7 +22,8 @@ type Config struct {
Project string
Region string
clientCompute *compute.Service
clientCompute *compute.Service
clientReplicaPool *replicapool.Service
}
func (c *Config) loadAndValidate() error {
@ -89,6 +90,11 @@ func (c *Config) loadAndValidate() error {
return err
}
c.clientReplicaPool, err = replicapool.New(client)
if err != nil {
return err
}
return nil
}

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@ -5,6 +5,7 @@ import (
"fmt"
"code.google.com/p/google-api-go-client/compute/v1"
"code.google.com/p/google-api-go-client/replicapool/v1beta2"
"github.com/hashicorp/terraform/helper/resource"
)
@ -77,3 +78,50 @@ func (e OperationError) Error() string {
return buf.String()
}
// Replicapool Operations
type ReplicaPoolOperationWaiter struct {
Service *replicapool.Service
Op *replicapool.Operation
Project string
Region string
Zone string
}
func (w *ReplicaPoolOperationWaiter) RefreshFunc() resource.StateRefreshFunc {
return func() (interface{}, string, error) {
var op *replicapool.Operation
var err error
op, err = w.Service.ZoneOperations.Get(
w.Project, w.Zone, w.Op.Name).Do()
if err != nil {
return nil, "", err
}
return op, op.Status, nil
}
}
func (w *ReplicaPoolOperationWaiter) Conf() *resource.StateChangeConf {
return &resource.StateChangeConf{
Pending: []string{"PENDING", "RUNNING"},
Target: "DONE",
Refresh: w.RefreshFunc(),
}
}
// ReplicaPoolOperationError wraps replicapool.OperationError and implements the
// error interface so it can be returned.
type ReplicaPoolOperationError replicapool.OperationError
func (e ReplicaPoolOperationError) Error() string {
var buf bytes.Buffer
for _, err := range e.Errors {
buf.WriteString(err.Message + "\n")
}
return buf.String()
}

View File

@ -29,16 +29,17 @@ func Provider() terraform.ResourceProvider {
},
ResourcesMap: map[string]*schema.Resource{
"google_compute_address": resourceComputeAddress(),
"google_compute_disk": resourceComputeDisk(),
"google_compute_firewall": resourceComputeFirewall(),
"google_compute_forwarding_rule": resourceComputeForwardingRule(),
"google_compute_http_health_check": resourceComputeHttpHealthCheck(),
"google_compute_instance": resourceComputeInstance(),
"google_compute_instance_template": resourceComputeInstanceTemplate(),
"google_compute_network": resourceComputeNetwork(),
"google_compute_route": resourceComputeRoute(),
"google_compute_target_pool": resourceComputeTargetPool(),
"google_compute_address": resourceComputeAddress(),
"google_compute_disk": resourceComputeDisk(),
"google_compute_firewall": resourceComputeFirewall(),
"google_compute_forwarding_rule": resourceComputeForwardingRule(),
"google_compute_http_health_check": resourceComputeHttpHealthCheck(),
"google_compute_instance": resourceComputeInstance(),
"google_compute_instance_template": resourceComputeInstanceTemplate(),
"google_compute_network": resourceComputeNetwork(),
"google_compute_route": resourceComputeRoute(),
"google_compute_target_pool": resourceComputeTargetPool(),
"google_replicapool_instance_group_manager": resourceReplicaPoolInstanceGroupManager(),
},
ConfigureFunc: providerConfigure,

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@ -0,0 +1,319 @@
package google
import (
"fmt"
"log"
"time"
"code.google.com/p/google-api-go-client/googleapi"
"code.google.com/p/google-api-go-client/replicapool/v1beta2"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceReplicaPoolInstanceGroupManager() *schema.Resource {
return &schema.Resource{
Create: resourceReplicaPoolInstanceGroupManagerCreate,
Read: resourceReplicaPoolInstanceGroupManagerRead,
Update: resourceReplicaPoolInstanceGroupManagerUpdate,
Delete: resourceReplicaPoolInstanceGroupManagerDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"description": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"base_instance_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"current_size": &schema.Schema{
Type: schema.TypeInt,
Computed: true,
},
"fingerprint": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"group": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"instance_template": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"target_pools": &schema.Schema{
Type: schema.TypeSet,
Required: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
"size": &schema.Schema{
Type: schema.TypeInt,
Required: true,
},
"target_size": &schema.Schema{
Type: schema.TypeInt,
Computed: true,
},
"zone": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"self_link": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
},
}
}
func waitOpZone(config *Config, op *replicapool.Operation, zone string,
resource string, action string) (*replicapool.Operation, error) {
w := &ReplicaPoolOperationWaiter{
Service: config.clientReplicaPool,
Op: op,
Project: config.Project,
Zone: zone,
}
state := w.Conf()
state.Timeout = 2 * time.Minute
state.MinTimeout = 1 * time.Second
opRaw, err := state.WaitForState()
if err != nil {
return nil, fmt.Errorf("Error waiting for %s to %s: %s", resource, action, err)
}
return opRaw.(*replicapool.Operation), nil
}
func resourceReplicaPoolInstanceGroupManagerCreate(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
// Get group size
var size int64
if v, ok := d.GetOk("size"); ok {
size = int64(v.(int))
}
// Build the parameter
manager := &replicapool.InstanceGroupManager{
Name: d.Get("name").(string),
BaseInstanceName: d.Get("base_instance_name").(string),
InstanceTemplate: d.Get("instance_template").(string),
}
// Set optional fields
if v, ok := d.GetOk("description"); ok {
manager.Description = v.(string)
}
if attr := d.Get("target_pools").(*schema.Set); attr.Len() > 0 {
var s []string
for _, v := range attr.List() {
s = append(s, v.(string))
}
manager.TargetPools = s
}
log.Printf("[DEBUG] InstanceGroupManager insert request: %#v", manager)
op, err := config.clientReplicaPool.InstanceGroupManagers.Insert(
config.Project, d.Get("zone").(string), size, manager).Do()
if err != nil {
return fmt.Errorf("Error creating InstanceGroupManager: %s", err)
}
// It probably maybe worked, so store the ID now
d.SetId(manager.Name)
// Wait for the operation to complete
op, err = waitOpZone(config, op, d.Get("zone").(string), "InstanceGroupManager", "create")
if err != nil {
return err
}
if op.Error != nil {
// The resource didn't actually create
d.SetId("")
// Return the error
return ReplicaPoolOperationError(*op.Error)
}
return resourceReplicaPoolInstanceGroupManagerRead(d, meta)
}
func resourceReplicaPoolInstanceGroupManagerRead(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
manager, err := config.clientReplicaPool.InstanceGroupManagers.Get(
config.Project, d.Get("zone").(string), d.Id()).Do()
if err != nil {
if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 {
// The resource doesn't exist anymore
d.SetId("")
return nil
}
return fmt.Errorf("Error reading instance group manager: %s", err)
}
// Set computed fields
d.Set("current_size", manager.CurrentSize)
d.Set("fingerprint", manager.Fingerprint)
d.Set("group", manager.Group)
d.Set("target_size", manager.TargetSize)
d.Set("self_link", manager.SelfLink)
return nil
}
func resourceReplicaPoolInstanceGroupManagerUpdate(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
d.Partial(true)
// If target_pools changes then update
if d.HasChange("target_pools") {
var targetPools []string
if attr := d.Get("target_pools").(*schema.Set); attr.Len() > 0 {
for _, v := range attr.List() {
targetPools = append(targetPools, v.(string))
}
}
// Build the parameter
setTargetPools := &replicapool.InstanceGroupManagersSetTargetPoolsRequest{
Fingerprint: d.Get("fingerprint").(string),
TargetPools: targetPools,
}
op, err := config.clientReplicaPool.InstanceGroupManagers.SetTargetPools(
config.Project, d.Get("zone").(string), d.Id(), setTargetPools).Do()
if err != nil {
return fmt.Errorf("Error updating InstanceGroupManager: %s", err)
}
// Wait for the operation to complete
op, err = waitOpZone(config, op, d.Get("zone").(string), "InstanceGroupManager", "update TargetPools")
if err != nil {
return err
}
if op.Error != nil {
return ReplicaPoolOperationError(*op.Error)
}
d.SetPartial("target_pools")
}
// If instance_template changes then update
if d.HasChange("instance_template") {
// Build the parameter
setInstanceTemplate := &replicapool.InstanceGroupManagersSetInstanceTemplateRequest{
InstanceTemplate: d.Get("instance_template").(string),
}
op, err := config.clientReplicaPool.InstanceGroupManagers.SetInstanceTemplate(
config.Project, d.Get("zone").(string), d.Id(), setInstanceTemplate).Do()
if err != nil {
return fmt.Errorf("Error updating InstanceGroupManager: %s", err)
}
// Wait for the operation to complete
op, err = waitOpZone(config, op, d.Get("zone").(string), "InstanceGroupManager", "update instance template")
if err != nil {
return err
}
if op.Error != nil {
return ReplicaPoolOperationError(*op.Error)
}
d.SetPartial("instance_template")
}
// If size changes trigger a resize
if d.HasChange("size") {
var size int64
if v, ok := d.GetOk("size"); ok {
size = int64(v.(int))
}
op, err := config.clientReplicaPool.InstanceGroupManagers.Resize(
config.Project, d.Get("zone").(string), d.Id(), size).Do()
if err != nil {
return fmt.Errorf("Error updating InstanceGroupManager: %s", err)
}
// Wait for the operation to complete
op, err = waitOpZone(config, op, d.Get("zone").(string), "InstanceGroupManager", "update size")
if err != nil {
return err
}
if op.Error != nil {
return ReplicaPoolOperationError(*op.Error)
}
d.SetPartial("size")
}
d.Partial(false)
return resourceReplicaPoolInstanceGroupManagerRead(d, meta)
}
func resourceReplicaPoolInstanceGroupManagerDelete(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
zone := d.Get("zone").(string)
op, err := config.clientReplicaPool.InstanceGroupManagers.Delete(config.Project, zone, d.Id()).Do()
if err != nil {
return fmt.Errorf("Error deleting instance group manager: %s", err)
}
// Wait for the operation to complete
w := &ReplicaPoolOperationWaiter{
Service: config.clientReplicaPool,
Op: op,
Project: config.Project,
Zone: d.Get("zone").(string),
}
state := w.Conf()
state.Timeout = 2 * time.Minute
state.MinTimeout = 1 * time.Second
opRaw, err := state.WaitForState()
if err != nil {
return fmt.Errorf("Error waiting for InstanceGroupManager to delete: %s", err)
}
op = opRaw.(*replicapool.Operation)
if op.Error != nil {
// The resource didn't actually create
d.SetId("")
// Return the error
return ReplicaPoolOperationError(*op.Error)
}
d.SetId("")
return nil
}

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@ -0,0 +1,365 @@
package google
import (
"fmt"
"log"
"testing"
"code.google.com/p/google-api-go-client/replicapool/v1beta2"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/terraform"
)
func TestAccInstanceGroupManager_basic(t *testing.T) {
var manager replicapool.InstanceGroupManager
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
CheckDestroy: testAccCheckInstanceGroupManagerDestroy,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccInstanceGroupManager_basic,
Check: resource.ComposeTestCheckFunc(
testAccCheckInstanceGroupManagerExists(
"google_replicapool_instance_group_manager.foobar", &manager),
),
},
},
})
}
func TestAccInstanceGroupManager_update(t *testing.T) {
var manager replicapool.InstanceGroupManager
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
CheckDestroy: testAccCheckInstanceGroupManagerDestroy,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccInstanceGroupManager_basic,
Check: resource.ComposeTestCheckFunc(
testAccCheckInstanceGroupManagerExists(
"google_replicapool_instance_group_manager.foobar", &manager),
),
},
resource.TestStep{
Config: testAccInstanceGroupManager_update,
Check: resource.ComposeTestCheckFunc(
testAccCheckInstanceGroupManagerExists(
"google_replicapool_instance_group_manager.foobar", &manager),
),
},
resource.TestStep{
Config: testAccInstanceGroupManager_update2,
Check: resource.ComposeTestCheckFunc(
testAccCheckInstanceGroupManagerExists(
"google_replicapool_instance_group_manager.foobar", &manager),
testAccCheckInstanceGroupManagerUpdated(
"google_replicapool_instance_group_manager.foobar", 3,
"google_compute_target_pool.foobaz", "terraform-test-foobaz"),
),
},
},
})
}
func testAccCheckInstanceGroupManagerDestroy(s *terraform.State) error {
config := testAccProvider.Meta().(*Config)
for _, rs := range s.RootModule().Resources {
if rs.Type != "google_replicapool_instance_group_manager" {
continue
}
_, err := config.clientReplicaPool.InstanceGroupManagers.Get(
config.Project, rs.Primary.Attributes["zone"], rs.Primary.ID).Do()
if err != nil {
return fmt.Errorf("InstanceGroupManager still exists")
}
}
return nil
}
func testAccCheckInstanceGroupManagerExists(n string, manager *replicapool.InstanceGroupManager) 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.clientReplicaPool.InstanceGroupManagers.Get(
config.Project, rs.Primary.Attributes["zone"], rs.Primary.ID).Do()
if err != nil {
return err
}
if found.Name != rs.Primary.ID {
return fmt.Errorf("InstanceGroupManager not found")
}
*manager = *found
return nil
}
}
func testAccCheckInstanceGroupManagerUpdated(n string, size int64, targetPool string, template string) 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")
}
log.Printf("[DEBUG] XXXXXXXXXXXXXXXXXXXXXXXX Manager Test: %#v", rs)
config := testAccProvider.Meta().(*Config)
manager, err := config.clientReplicaPool.InstanceGroupManagers.Get(
config.Project, rs.Primary.Attributes["zone"], rs.Primary.ID).Do()
if err != nil {
return err
}
// check that total instance count is "size"
log.Printf("[DEBUG] XXXXXXXXXXXXXXXXXXXXXXXX Manager Test: %#v", manager.TargetSize)
if manager.CurrentSize != size {
return fmt.Errorf("instance count incorrect")
}
// check that at least one instance exists in "targetpool"
tp, ok := s.RootModule().Resources[targetPool]
if !ok {
return fmt.Errorf("Not found: %s", targetPool)
}
if tp.Primary.ID == "" {
return fmt.Errorf("No ID is set")
}
log.Printf("[DEBUG] XXXXXXXXXXXXXXXXXXXXXXXX Manager Test: %#v", tp)
targetpool, err := config.clientCompute.TargetPools.Get(
config.Project, config.Region, tp.Primary.ID).Do()
if err != nil {
return err
}
// check that total instance count is "size"
log.Printf("[DEBUG] XXXXXXXXXXXXXXXXXXXXXXXX Manager Test: %#v", len(targetpool.Instances))
if len(targetpool.Instances) == 0 {
return fmt.Errorf("no instance in new targetpool")
}
// check that the instance template updated
instanceTemplate, err := config.clientCompute.InstanceTemplates.Get(
config.Project, template).Do()
if err != nil {
return fmt.Errorf("Error reading instance template: %s", err)
}
if instanceTemplate.Name != template {
return fmt.Errorf("instance template not updated")
}
return nil
}
}
const testAccInstanceGroupManager_basic = `
resource "google_compute_instance_template" "foobar" {
name = "terraform-test-foobar"
machine_type = "n1-standard-1"
can_ip_forward = false
tags = ["foo", "bar"]
disk {
source_image = "projects/debian-cloud/global/images/debian-7-wheezy-v20140814"
auto_delete = true
boot = true
}
network {
source = "default"
}
metadata {
foo = "bar"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
}
resource "google_compute_target_pool" "foobar" {
description = "Resource created for Terraform acceptance testing"
name = "terraform-test-foobar"
session_affinity = "CLIENT_IP_PROTO"
}
resource "google_replicapool_instance_group_manager" "foobar" {
description = "Terraform test instance group manager"
name = "terraform-test"
instance_template = "${google_compute_instance_template.foobar.self_link}"
target_pools = ["${google_compute_target_pool.foobar.self_link}"]
base_instance_name = "foobar"
zone = "us-central1-a"
size = 2
}`
const testAccInstanceGroupManager_update = `
resource "google_compute_instance_template" "foobar" {
name = "terraform-test-foobar"
machine_type = "n1-standard-1"
can_ip_forward = false
tags = ["foo", "bar"]
disk {
source_image = "projects/debian-cloud/global/images/debian-7-wheezy-v20140814"
auto_delete = true
boot = true
}
network {
source = "default"
}
metadata {
foo = "bar"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
}
resource "google_compute_instance_template" "foobaz" {
name = "terraform-test-foobaz"
machine_type = "n1-standard-1"
can_ip_forward = false
tags = ["foo", "bar"]
disk {
source_image = "projects/debian-cloud/global/images/debian-7-wheezy-v20140814"
auto_delete = true
boot = true
}
network {
source = "default"
}
metadata {
foo = "bar"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
}
resource "google_compute_target_pool" "foobar" {
description = "Resource created for Terraform acceptance testing"
name = "terraform-test-foobar"
session_affinity = "CLIENT_IP_PROTO"
}
resource "google_compute_target_pool" "foobaz" {
description = "Resource created for Terraform acceptance testing"
name = "terraform-test-foobaz"
session_affinity = "CLIENT_IP_PROTO"
}
resource "google_replicapool_instance_group_manager" "foobar" {
description = "Terraform test instance group manager"
name = "terraform-test"
instance_template = "${google_compute_instance_template.foobar.self_link}"
target_pools = ["${google_compute_target_pool.foobaz.self_link}"]
base_instance_name = "foobar"
zone = "us-central1-a"
size = 2
}`
const testAccInstanceGroupManager_update2 = `
resource "google_compute_instance_template" "foobar" {
name = "terraform-test-foobar"
machine_type = "n1-standard-1"
can_ip_forward = false
tags = ["foo", "bar"]
disk {
source_image = "projects/debian-cloud/global/images/debian-7-wheezy-v20140814"
auto_delete = true
boot = true
}
network {
source = "default"
}
metadata {
foo = "bar"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
}
resource "google_compute_instance_template" "foobaz" {
name = "terraform-test-foobaz"
machine_type = "n1-standard-1"
can_ip_forward = false
tags = ["foo", "bar"]
disk {
source_image = "projects/debian-cloud/global/images/debian-7-wheezy-v20140814"
auto_delete = true
boot = true
}
network {
source = "default"
}
metadata {
foo = "bar"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
}
resource "google_compute_target_pool" "foobar" {
description = "Resource created for Terraform acceptance testing"
name = "terraform-test-foobar"
session_affinity = "CLIENT_IP_PROTO"
}
resource "google_compute_target_pool" "foobaz" {
description = "Resource created for Terraform acceptance testing"
name = "terraform-test-foobaz"
session_affinity = "CLIENT_IP_PROTO"
}
resource "google_replicapool_instance_group_manager" "foobar" {
description = "Terraform test instance group manager"
name = "terraform-test"
instance_template = "${google_compute_instance_template.foobaz.self_link}"
target_pools = ["${google_compute_target_pool.foobaz.self_link}"]
base_instance_name = "foobar"
zone = "us-central1-a"
size = 3
}`