/
resource_digitalocean_droplet.go
827 lines (691 loc) · 21.7 KB
/
resource_digitalocean_droplet.go
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package digitalocean
import (
"context"
"fmt"
"log"
"net"
"strconv"
"strings"
"time"
"github.com/digitalocean/godo"
"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
"github.com/hashicorp/terraform-plugin-sdk/helper/validation"
)
func resourceDigitalOceanDroplet() *schema.Resource {
return &schema.Resource{
Create: resourceDigitalOceanDropletCreate,
Read: resourceDigitalOceanDropletRead,
Update: resourceDigitalOceanDropletUpdate,
Delete: resourceDigitalOceanDropletDelete,
Importer: &schema.ResourceImporter{
State: resourceDigitalOceanDropletImport,
},
MigrateState: resourceDigitalOceanDropletMigrateState,
SchemaVersion: 1,
Schema: map[string]*schema.Schema{
"image": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validation.NoZeroValues,
},
"name": {
Type: schema.TypeString,
Required: true,
ValidateFunc: validation.NoZeroValues,
},
"region": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
StateFunc: func(val interface{}) string {
// DO API V2 region slug is always lowercase
return strings.ToLower(val.(string))
},
ValidateFunc: validation.NoZeroValues,
},
"size": {
Type: schema.TypeString,
Required: true,
StateFunc: func(val interface{}) string {
// DO API V2 size slug is always lowercase
return strings.ToLower(val.(string))
},
ValidateFunc: validation.NoZeroValues,
},
"created_at": {
Type: schema.TypeString,
Computed: true,
},
"urn": {
Type: schema.TypeString,
Computed: true,
},
"disk": {
Type: schema.TypeInt,
Computed: true,
},
"vcpus": {
Type: schema.TypeInt,
Computed: true,
},
"memory": {
Type: schema.TypeInt,
Computed: true,
},
"price_hourly": {
Type: schema.TypeFloat,
Computed: true,
},
"price_monthly": {
Type: schema.TypeFloat,
Computed: true,
},
"resize_disk": {
Type: schema.TypeBool,
Optional: true,
Default: true,
},
"status": {
Type: schema.TypeString,
Computed: true,
},
"locked": {
Type: schema.TypeBool,
Computed: true,
},
"backups": {
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"ipv6": {
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"ipv6_address": {
Type: schema.TypeString,
Computed: true,
StateFunc: func(val interface{}) string {
return strings.ToLower(val.(string))
},
},
"ipv6_address_private": {
Type: schema.TypeString,
Computed: true,
Removed: "DigitalOcean does not provide private IPv6 networking",
},
"private_networking": {
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"ipv4_address": {
Type: schema.TypeString,
Computed: true,
},
"ipv4_address_private": {
Type: schema.TypeString,
Computed: true,
},
"ssh_keys": {
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{
Type: schema.TypeString,
ValidateFunc: validation.NoZeroValues,
},
},
"user_data": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
ValidateFunc: validation.NoZeroValues,
StateFunc: HashStringStateFunc(),
// In order to support older statefiles with fully saved user data
DiffSuppressFunc: func(k, old, new string, d *schema.ResourceData) bool {
return new != "" && old == d.Get("user_data")
},
},
"volume_ids": {
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Optional: true,
Computed: true,
},
"monitoring": {
Type: schema.TypeBool,
Optional: true,
ForceNew: true,
Default: false,
},
"tags": tagsSchema(),
"vpc_uuid": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
ValidateFunc: validation.NoZeroValues,
},
},
}
}
func resourceDigitalOceanDropletCreate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*CombinedConfig).godoClient()
image := d.Get("image").(string)
// Build up our creation options
opts := &godo.DropletCreateRequest{
Image: godo.DropletCreateImage{},
Name: d.Get("name").(string),
Region: d.Get("region").(string),
Size: d.Get("size").(string),
Tags: expandTags(d.Get("tags").(*schema.Set).List()),
}
imageId, err := strconv.Atoi(image)
if err == nil {
// The image field is provided as an ID (number).
opts.Image.ID = imageId
} else {
opts.Image.Slug = image
}
if attr, ok := d.GetOk("backups"); ok {
opts.Backups = attr.(bool)
}
if attr, ok := d.GetOk("ipv6"); ok {
opts.IPv6 = attr.(bool)
}
if attr, ok := d.GetOk("private_networking"); ok {
opts.PrivateNetworking = attr.(bool)
}
if attr, ok := d.GetOk("user_data"); ok {
opts.UserData = attr.(string)
}
if attr, ok := d.GetOk("volume_ids"); ok {
for _, id := range attr.(*schema.Set).List() {
if id == nil {
continue
}
volumeId := id.(string)
if volumeId == "" {
continue
}
opts.Volumes = append(opts.Volumes, godo.DropletCreateVolume{
ID: volumeId,
})
}
}
if attr, ok := d.GetOk("monitoring"); ok {
opts.Monitoring = attr.(bool)
}
if attr, ok := d.GetOk("vpc_uuid"); ok {
opts.VPCUUID = attr.(string)
}
// Get configured ssh_keys
if v, ok := d.GetOk("ssh_keys"); ok {
expandedSshKeys, err := expandSshKeys(v.(*schema.Set).List())
if err != nil {
return err
}
opts.SSHKeys = expandedSshKeys
}
log.Printf("[DEBUG] Droplet create configuration: %#v", opts)
droplet, _, err := client.Droplets.Create(context.Background(), opts)
if err != nil {
return fmt.Errorf("Error creating droplet: %s", err)
}
// Assign the droplets id
d.SetId(strconv.Itoa(droplet.ID))
log.Printf("[INFO] Droplet ID: %s", d.Id())
_, err = waitForDropletAttribute(d, "active", []string{"new"}, "status", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for droplet (%s) to become ready: %s", d.Id(), err)
}
return resourceDigitalOceanDropletRead(d, meta)
}
func resourceDigitalOceanDropletRead(d *schema.ResourceData, meta interface{}) error {
client := meta.(*CombinedConfig).godoClient()
id, err := strconv.Atoi(d.Id())
if err != nil {
return fmt.Errorf("invalid droplet id: %v", err)
}
// Retrieve the droplet properties for updating the state
droplet, resp, err := client.Droplets.Get(context.Background(), id)
if err != nil {
// check if the droplet no longer exists.
if resp != nil && resp.StatusCode == 404 {
log.Printf("[WARN] DigitalOcean Droplet (%s) not found", d.Id())
d.SetId("")
return nil
}
return fmt.Errorf("Error retrieving droplet: %s", err)
}
// Image can drift once the image is build if a remote drift is detected
// as can cause issues with slug changes due image patch that shoudn't be sync.
// See: https://github.com/digitalocean/terraform-provider-digitalocean/issues/152
d.Set("name", droplet.Name)
d.Set("urn", droplet.URN())
d.Set("region", droplet.Region.Slug)
d.Set("size", droplet.Size.Slug)
d.Set("price_hourly", droplet.Size.PriceHourly)
d.Set("price_monthly", droplet.Size.PriceMonthly)
d.Set("disk", droplet.Disk)
d.Set("vcpus", droplet.Vcpus)
d.Set("memory", droplet.Memory)
d.Set("status", droplet.Status)
d.Set("locked", droplet.Locked)
d.Set("created_at", droplet.Created)
d.Set("vpc_uuid", droplet.VPCUUID)
d.Set("ipv4_address", findIPv4AddrByType(droplet, "public"))
d.Set("ipv4_address_private", findIPv4AddrByType(droplet, "private"))
d.Set("ipv6_address", findIPv6AddrByType(droplet, "public"))
if features := droplet.Features; features != nil {
d.Set("backups", containsDigitalOceanDropletFeature(features, "backups"))
d.Set("ipv6", containsDigitalOceanDropletFeature(features, "ipv6"))
d.Set("private_networking", containsDigitalOceanDropletFeature(features, "private_networking"))
d.Set("monitoring", containsDigitalOceanDropletFeature(features, "monitoring"))
}
if err := d.Set("volume_ids", flattenDigitalOceanDropletVolumeIds(droplet.VolumeIDs)); err != nil {
return fmt.Errorf("Error setting `volume_ids`: %+v", err)
}
if err := d.Set("tags", flattenTags(droplet.Tags)); err != nil {
return fmt.Errorf("Error setting `tags`: %+v", err)
}
// Initialize the connection info
d.SetConnInfo(map[string]string{
"type": "ssh",
"host": findIPv4AddrByType(droplet, "public"),
})
return nil
}
func resourceDigitalOceanDropletImport(d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
// Retrieve the image from API during import
client := meta.(*CombinedConfig).godoClient()
id, err := strconv.Atoi(d.Id())
if err != nil {
return nil, fmt.Errorf("Invalid droplet id: %v", err)
}
droplet, resp, err := client.Droplets.Get(context.Background(), id)
if resp.StatusCode != 404 {
if err != nil {
return nil, fmt.Errorf("Error importing droplet: %s", err)
}
if droplet.Image.Slug != "" {
d.Set("image", droplet.Image.Slug)
} else {
d.Set("image", godo.Stringify(droplet.Image.ID))
}
// This is a non API attribute. So set to the default setting in the schema.
d.Set("resize_disk", true)
}
return []*schema.ResourceData{d}, nil
}
func findIPv6AddrByType(d *godo.Droplet, addrType string) string {
for _, addr := range d.Networks.V6 {
if addr.Type == addrType {
if ip := net.ParseIP(addr.IPAddress); ip != nil {
return strings.ToLower(addr.IPAddress)
}
}
}
return ""
}
func findIPv4AddrByType(d *godo.Droplet, addrType string) string {
for _, addr := range d.Networks.V4 {
if addr.Type == addrType {
if ip := net.ParseIP(addr.IPAddress); ip != nil {
return addr.IPAddress
}
}
}
return ""
}
func resourceDigitalOceanDropletUpdate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*CombinedConfig).godoClient()
id, err := strconv.Atoi(d.Id())
if err != nil {
return fmt.Errorf("invalid droplet id: %v", err)
}
if d.HasChange("size") {
newSize := d.Get("size")
resizeDisk := d.Get("resize_disk").(bool)
_, _, err = client.DropletActions.PowerOff(context.Background(), id)
if err != nil && !strings.Contains(err.Error(), "Droplet is already powered off") {
return fmt.Errorf(
"Error powering off droplet (%s): %s", d.Id(), err)
}
// Wait for power off
_, err = waitForDropletAttribute(d, "off", []string{"active"}, "status", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for droplet (%s) to become powered off: %s", d.Id(), err)
}
// Resize the droplet
var action *godo.Action
action, _, err = client.DropletActions.Resize(context.Background(), id, newSize.(string), resizeDisk)
if err != nil {
newErr := powerOnAndWait(d, meta)
if newErr != nil {
return fmt.Errorf(
"Error powering on droplet (%s) after failed resize: %s", d.Id(), err)
}
return fmt.Errorf(
"Error resizing droplet (%s): %s", d.Id(), err)
}
// Wait for the resize action to complete.
if err = waitForAction(client, action); err != nil {
newErr := powerOnAndWait(d, meta)
if newErr != nil {
return fmt.Errorf(
"Error powering on droplet (%s) after waiting for resize to finish: %s", d.Id(), err)
}
return fmt.Errorf(
"Error waiting for resize droplet (%s) to finish: %s", d.Id(), err)
}
_, _, err = client.DropletActions.PowerOn(context.Background(), id)
if err != nil {
return fmt.Errorf(
"Error powering on droplet (%s) after resize: %s", d.Id(), err)
}
// Wait for power off
_, err = waitForDropletAttribute(d, "active", []string{"off"}, "status", meta)
if err != nil {
return err
}
}
if d.HasChange("name") {
oldName, newName := d.GetChange("name")
// Rename the droplet
_, _, err = client.DropletActions.Rename(context.Background(), id, newName.(string))
if err != nil {
return fmt.Errorf(
"Error renaming droplet (%s): %s", d.Id(), err)
}
// Wait for the name to change
_, err = waitForDropletAttribute(
d, newName.(string), []string{"", oldName.(string)}, "name", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for rename droplet (%s) to finish: %s", d.Id(), err)
}
}
if d.HasChange("backups") {
if d.Get("backups").(bool) {
// Enable backups on droplet
action, _, err := client.DropletActions.EnableBackups(context.Background(), id)
if err != nil {
return fmt.Errorf(
"Error enabling backups on droplet (%s): %s", d.Id(), err)
}
if err := waitForAction(client, action); err != nil {
return fmt.Errorf("Error waiting for backups to be enabled for droplet (%s): %s", d.Id(), err)
}
} else {
// Disable backups on droplet
action, _, err := client.DropletActions.DisableBackups(context.Background(), id)
if err != nil {
return fmt.Errorf(
"Error disabling backups on droplet (%s): %s", d.Id(), err)
}
if err := waitForAction(client, action); err != nil {
return fmt.Errorf("Error waiting for backups to be disabled for droplet (%s): %s", d.Id(), err)
}
}
}
// As there is no way to disable private networking,
// we only check if it needs to be enabled
if d.HasChange("private_networking") && d.Get("private_networking").(bool) {
_, _, err = client.DropletActions.EnablePrivateNetworking(context.Background(), id)
if err != nil {
return fmt.Errorf(
"Error enabling private networking for droplet (%s): %s", d.Id(), err)
}
// Wait for the private_networking to turn on
_, err = waitForDropletAttribute(
d, "true", []string{"", "false"}, "private_networking", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for private networking to be enabled on for droplet (%s): %s", d.Id(), err)
}
}
// As there is no way to disable IPv6, we only check if it needs to be enabled
if d.HasChange("ipv6") && d.Get("ipv6").(bool) {
_, _, err = client.DropletActions.EnableIPv6(context.Background(), id)
if err != nil {
return fmt.Errorf(
"Error turning on ipv6 for droplet (%s): %s", d.Id(), err)
}
// Wait for ipv6 to turn on
_, err = waitForDropletAttribute(
d, "true", []string{"", "false"}, "ipv6", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for ipv6 to be turned on for droplet (%s): %s", d.Id(), err)
}
}
if d.HasChange("tags") {
err = setTags(client, d, godo.DropletResourceType)
if err != nil {
return fmt.Errorf("Error updating tags: %s", err)
}
}
if d.HasChange("volume_ids") {
oldIDs, newIDs := d.GetChange("volume_ids")
newSet := func(ids []interface{}) map[string]struct{} {
out := make(map[string]struct{}, len(ids))
for _, id := range ids {
out[id.(string)] = struct{}{}
}
return out
}
// leftDiff returns all elements in Left that are not in Right
leftDiff := func(left, right map[string]struct{}) map[string]struct{} {
out := make(map[string]struct{})
for l := range left {
if _, ok := right[l]; !ok {
out[l] = struct{}{}
}
}
return out
}
oldIDSet := newSet(oldIDs.(*schema.Set).List())
newIDSet := newSet(newIDs.(*schema.Set).List())
for volumeID := range leftDiff(newIDSet, oldIDSet) {
action, _, err := client.StorageActions.Attach(context.Background(), volumeID, id)
if err != nil {
return fmt.Errorf("Error attaching volume %q to droplet (%s): %s", volumeID, d.Id(), err)
}
// can't fire >1 action at a time, so waiting for each is OK
if err := waitForAction(client, action); err != nil {
return fmt.Errorf("Error waiting for volume %q to attach to droplet (%s): %s", volumeID, d.Id(), err)
}
}
for volumeID := range leftDiff(oldIDSet, newIDSet) {
detachVolumeIDOnDroplet(d, volumeID, meta)
}
}
return resourceDigitalOceanDropletRead(d, meta)
}
func resourceDigitalOceanDropletDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*CombinedConfig).godoClient()
id, err := strconv.Atoi(d.Id())
if err != nil {
return fmt.Errorf("invalid droplet id: %v", err)
}
_, err = waitForDropletAttribute(
d, "false", []string{"", "true"}, "locked", meta)
if err != nil {
return fmt.Errorf(
"Error waiting for droplet to be unlocked for destroy (%s): %s", d.Id(), err)
}
log.Printf("[INFO] Trying to Detach Storage Volumes (if any) from droplet: %s", d.Id())
err = detachVolumesFromDroplet(d, meta)
if err != nil {
return fmt.Errorf(
"Error detaching the volumes from the droplet (%s): %s", d.Id(), err)
}
log.Printf("[INFO] Deleting droplet: %s", d.Id())
// Destroy the droplet
resp, err := client.Droplets.Delete(context.Background(), id)
// Handle already destroyed droplets
if err != nil && resp.StatusCode == 404 {
return nil
}
_, err = waitForDropletDestroy(d, meta)
if err != nil && strings.Contains(err.Error(), "404") {
return nil
} else if err != nil {
return fmt.Errorf("Error deleting droplet: %s", err)
}
return nil
}
func waitForDropletDestroy(d *schema.ResourceData, meta interface{}) (interface{}, error) {
log.Printf("[INFO] Waiting for droplet (%s) to be destroyed", d.Id())
stateConf := &resource.StateChangeConf{
Pending: []string{"active", "off"},
Target: []string{"archived"},
Refresh: newDropletStateRefreshFunc(d, "status", meta),
Timeout: 60 * time.Second,
Delay: 10 * time.Second,
MinTimeout: 3 * time.Second,
}
return stateConf.WaitForState()
}
func waitForDropletAttribute(
d *schema.ResourceData, target string, pending []string, attribute string, meta interface{}) (interface{}, error) {
// Wait for the droplet so we can get the networking attributes
// that show up after a while
log.Printf(
"[INFO] Waiting for droplet (%s) to have %s of %s",
d.Id(), attribute, target)
stateConf := &resource.StateChangeConf{
Pending: pending,
Target: []string{target},
Refresh: newDropletStateRefreshFunc(d, attribute, meta),
Timeout: 60 * time.Minute,
Delay: 10 * time.Second,
MinTimeout: 3 * time.Second,
// This is a hack around DO API strangeness.
// https://github.com/hashicorp/terraform/issues/481
//
NotFoundChecks: 60,
}
return stateConf.WaitForState()
}
// TODO This function still needs a little more refactoring to make it
// cleaner and more efficient
func newDropletStateRefreshFunc(
d *schema.ResourceData, attribute string, meta interface{}) resource.StateRefreshFunc {
client := meta.(*CombinedConfig).godoClient()
return func() (interface{}, string, error) {
id, err := strconv.Atoi(d.Id())
if err != nil {
return nil, "", err
}
err = resourceDigitalOceanDropletRead(d, meta)
if err != nil {
return nil, "", err
}
// If the droplet is locked, continue waiting. We can
// only perform actions on unlocked droplets, so it's
// pointless to look at that status
if d.Get("locked").(bool) {
log.Println("[DEBUG] Droplet is locked, skipping status check and retrying")
return nil, "", nil
}
// See if we can access our attribute
if attr, ok := d.GetOkExists(attribute); ok {
// Retrieve the droplet properties
droplet, _, err := client.Droplets.Get(context.Background(), id)
if err != nil {
return nil, "", fmt.Errorf("Error retrieving droplet: %s", err)
}
switch attr.(type) {
case bool:
return &droplet, strconv.FormatBool(attr.(bool)), nil
default:
return &droplet, attr.(string), nil
}
}
return nil, "", nil
}
}
// Powers on the droplet and waits for it to be active
func powerOnAndWait(d *schema.ResourceData, meta interface{}) error {
id, err := strconv.Atoi(d.Id())
if err != nil {
return fmt.Errorf("invalid droplet id: %v", err)
}
client := meta.(*CombinedConfig).godoClient()
_, _, err = client.DropletActions.PowerOn(context.Background(), id)
if err != nil {
return err
}
// Wait for power on
_, err = waitForDropletAttribute(d, "active", []string{"off"}, "status", meta)
if err != nil {
return err
}
return nil
}
// Detach volumes from droplet
func detachVolumesFromDroplet(d *schema.ResourceData, meta interface{}) error {
var errors []error
if attr, ok := d.GetOk("volume_ids"); ok {
errors = make([]error, 0, attr.(*schema.Set).Len())
for _, volumeID := range attr.(*schema.Set).List() {
detachVolumeIDOnDroplet(d, volumeID.(string), meta)
}
}
if len(errors) > 0 {
return fmt.Errorf("Error detaching one or more volumes: %v", errors)
}
return nil
}
func detachVolumeIDOnDroplet(d *schema.ResourceData, volumeID string, meta interface{}) error {
id, err := strconv.Atoi(d.Id())
if err != nil {
return fmt.Errorf("invalid droplet id: %v", err)
}
client := meta.(*CombinedConfig).godoClient()
action, _, err := client.StorageActions.DetachByDropletID(context.Background(), volumeID, id)
if err != nil {
return fmt.Errorf("Error detaching volume %q from droplet (%s): %s", volumeID, d.Id(), err)
}
// can't fire >1 action at a time, so waiting for each is OK
if err := waitForAction(client, action); err != nil {
return fmt.Errorf("Error waiting for volume %q to detach from droplet (%s): %s", volumeID, d.Id(), err)
}
return nil
}
func containsDigitalOceanDropletFeature(features []string, name string) bool {
for _, v := range features {
if v == name {
return true
}
}
return false
}
func expandSshKeys(sshKeys []interface{}) ([]godo.DropletCreateSSHKey, error) {
expandedSshKeys := make([]godo.DropletCreateSSHKey, len(sshKeys))
for i, s := range sshKeys {
sshKey := s.(string)
var expandedSshKey godo.DropletCreateSSHKey
if id, err := strconv.Atoi(sshKey); err == nil {
expandedSshKey.ID = id
} else {
expandedSshKey.Fingerprint = sshKey
}
expandedSshKeys[i] = expandedSshKey
}
return expandedSshKeys, nil
}
func flattenDigitalOceanDropletVolumeIds(volumeids []string) *schema.Set {
flattenedVolumes := schema.NewSet(schema.HashString, []interface{}{})
for _, v := range volumeids {
flattenedVolumes.Add(v)
}
return flattenedVolumes
}