terraform/builtin/providers/digitalocean/resource_digitalocean_dropl...

425 lines
10 KiB
Go

package digitalocean
import (
"fmt"
"log"
"strings"
"time"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"github.com/pearkes/digitalocean"
)
func resourceDigitalOceanDroplet() *schema.Resource {
return &schema.Resource{
Create: resourceDigitalOceanDropletCreate,
Read: resourceDigitalOceanDropletRead,
Update: resourceDigitalOceanDropletUpdate,
Delete: resourceDigitalOceanDropletDelete,
Schema: map[string]*schema.Schema{
"image": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"region": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"size": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"status": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"locked": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"backups": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
"ipv6": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
},
"ipv6_address": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"ipv6_address_private": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"private_networking": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
},
"ipv4_address": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"ipv4_address_private": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"ssh_keys": &schema.Schema{
Type: schema.TypeList,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
"user_data": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
},
}
}
func resourceDigitalOceanDropletCreate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*digitalocean.Client)
// Build up our creation options
opts := &digitalocean.CreateDroplet{
Image: d.Get("image").(string),
Name: d.Get("name").(string),
Region: d.Get("region").(string),
Size: d.Get("size").(string),
}
if attr, ok := d.GetOk("backups"); ok {
opts.Backups = attr.(string)
}
if attr, ok := d.GetOk("ipv6"); ok && attr.(bool) {
opts.IPV6 = "true"
}
if attr, ok := d.GetOk("private_networking"); ok && attr.(bool) {
opts.PrivateNetworking = "true"
}
if attr, ok := d.GetOk("user_data"); ok {
opts.UserData = attr.(string)
}
// Get configured ssh_keys
ssh_keys := d.Get("ssh_keys.#").(int)
if ssh_keys > 0 {
opts.SSHKeys = make([]string, 0, ssh_keys)
for i := 0; i < ssh_keys; i++ {
key := fmt.Sprintf("ssh_keys.%d", i)
opts.SSHKeys = append(opts.SSHKeys, d.Get(key).(string))
}
}
log.Printf("[DEBUG] Droplet create configuration: %#v", opts)
id, err := client.CreateDroplet(opts)
if err != nil {
return fmt.Errorf("Error creating droplet: %s", err)
}
// Assign the droplets id
d.SetId(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.(*digitalocean.Client)
// Retrieve the droplet properties for updating the state
droplet, err := client.RetrieveDroplet(d.Id())
if err != nil {
return fmt.Errorf("Error retrieving droplet: %s", err)
}
if droplet.ImageSlug() != "" {
d.Set("image", droplet.ImageSlug())
} else {
d.Set("image", droplet.ImageId())
}
d.Set("name", droplet.Name)
d.Set("region", droplet.RegionSlug())
d.Set("size", droplet.SizeSlug)
d.Set("status", droplet.Status)
d.Set("locked", droplet.IsLocked())
if droplet.IPV6Address("public") != "" {
d.Set("ipv6", true)
d.Set("ipv6_address", droplet.IPV6Address("public"))
d.Set("ipv6_address_private", droplet.IPV6Address("private"))
}
d.Set("ipv4_address", droplet.IPV4Address("public"))
if droplet.NetworkingType() == "private" {
d.Set("private_networking", true)
d.Set("ipv4_address_private", droplet.IPV4Address("private"))
}
// Initialize the connection info
d.SetConnInfo(map[string]string{
"type": "ssh",
"host": droplet.IPV4Address("public"),
})
return nil
}
func resourceDigitalOceanDropletUpdate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*digitalocean.Client)
if d.HasChange("size") {
oldSize, newSize := d.GetChange("size")
err := client.PowerOff(d.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", client)
if err != nil {
return fmt.Errorf(
"Error waiting for droplet (%s) to become powered off: %s", d.Id(), err)
}
// Resize the droplet
err = client.Resize(d.Id(), newSize.(string))
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 size to change
_, err = WaitForDropletAttribute(
d, newSize.(string), []string{"", oldSize.(string)}, "size", meta)
if 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.PowerOn(d.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.Rename(d.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)
}
}
// 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.EnablePrivateNetworking(d.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)
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.EnableIPV6s(d.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)
}
}
return resourceDigitalOceanDropletRead(d, meta)
}
func resourceDigitalOceanDropletDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*digitalocean.Client)
log.Printf("[INFO] Deleting droplet: %s", d.Id())
// Destroy the droplet
err := client.DestroyDroplet(d.Id())
// Handle remotely destroyed droplets
if err != nil && strings.Contains(err.Error(), "404 Not Found") {
return nil
}
if err != nil {
return fmt.Errorf("Error deleting droplet: %s", err)
}
return nil
}
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: target,
Refresh: newDropletStateRefreshFunc(d, attribute, meta),
Timeout: 10 * time.Minute,
Delay: 10 * time.Second,
MinTimeout: 3 * time.Second,
}
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.(*digitalocean.Client)
return func() (interface{}, string, error) {
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").(string) == "true" {
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.GetOk(attribute); ok {
// Retrieve the droplet properties
droplet, err := client.RetrieveDroplet(d.Id())
if err != nil {
return nil, "", fmt.Errorf("Error retrieving droplet: %s", err)
}
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 {
client := meta.(*digitalocean.Client)
err := client.PowerOn(d.Id())
if err != nil {
return err
}
// Wait for power on
_, err = WaitForDropletAttribute(d, "active", []string{"off"}, "status", client)
if err != nil {
return err
}
return nil
}