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ubiquity.go
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ubiquity.go
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package ubiquity
import (
"fmt"
"io/ioutil"
"time"
"github.com/ubiquityhosting/goubi"
"github.com/docker/machine/libmachine/drivers"
"github.com/docker/machine/libmachine/log"
"github.com/docker/machine/libmachine/mcnflag"
"github.com/docker/machine/libmachine/ssh"
"github.com/docker/machine/libmachine/state"
)
type Driver struct {
*drivers.BaseDriver
ClientID int
Username string
Token string
ZoneID int
FlavorID int
ImageID int
ServiceID int
SSHKeyID int
}
const (
defaultZoneID = 7
defaultFlavorID = 1
defaultImageID = 18
)
func (d *Driver) GetCreateFlags() []mcnflag.Flag {
return []mcnflag.Flag{
mcnflag.IntFlag{
EnvVar: "UBIQUITY_CLIENT_ID",
Name: "ubiquity-client-id",
Usage: "Ubiquity client ID for account authentication",
},
mcnflag.StringFlag{
EnvVar: "UBIQUITY_API_USERNAME",
Name: "ubiquity-api-username",
Usage: "Ubiquity username for API authentication",
},
mcnflag.StringFlag{
EnvVar: "UBIQUITY_API_TOKEN",
Name: "ubiquity-api-token",
Usage: "Ubiquity API token for authentication",
},
mcnflag.IntFlag{
EnvVar: "UBIQUITY_ZONE_ID",
Name: "ubiquity-zone-id",
Usage: "Ubiquity zone location for VM creation",
Value: defaultZoneID,
},
mcnflag.IntFlag{
EnvVar: "UBIQUITY_FLAVOR_ID",
Name: "ubiquity-flavor-id",
Usage: "Ubiquity VM size details for VM creation",
Value: defaultFlavorID,
},
mcnflag.IntFlag{
EnvVar: "UBIQUITY_IMAGE_ID",
Name: "ubiquity-image-id",
Usage: "Ubiquity VM image for VM creation",
Value: defaultImageID,
},
}
}
func NewDriver(hostName, storePath string) *Driver {
return &Driver{
ZoneID: defaultZoneID,
FlavorID: defaultFlavorID,
ImageID: defaultImageID,
BaseDriver: &drivers.BaseDriver{
MachineName: hostName,
StorePath: storePath,
},
}
}
func (d *Driver) GetMachineName() string {
return d.MachineName
}
func (d *Driver) GetSSHHostname() (string, error) {
return d.GetIP()
}
func (d *Driver) DriverName() string {
return "ubiquity"
}
func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
d.ClientID = flags.Int("ubiquity-client-id")
d.Username = flags.String("ubiquity-api-username")
d.Token = flags.String("ubiquity-api-token")
d.ZoneID = flags.Int("ubiquity-zone-id")
d.FlavorID = flags.Int("ubiquity-flavor-id")
d.ImageID = flags.Int("ubiquity-image-id")
if d.ClientID <= 0 {
return fmt.Errorf("ubiquity driver requires the --ubiquity-client-id option")
}
if d.Username == "" {
return fmt.Errorf("ubiquity driver requires the --ubiquity-api-username option")
}
if d.Token == "" {
return fmt.Errorf("ubiquity driver requires the --ubiquity-api-token option")
}
return nil
}
func (d *Driver) PreCreateCheck() error {
return nil
}
func (d *Driver) Create() error {
log.Infof("Creating SSH key...")
key, err := d.createSSHKey()
if err != nil {
return err
}
d.SSHKeyID = key
log.Debugf("Created SSH Key ID: %d", key)
log.Infof("Creating Ubiquity instance, please wait...")
createRequest := &goubi.CreateVMParams{
Hostname: d.MachineName,
ImageID: d.ImageID,
FlavorID: d.FlavorID,
ZoneID: d.ZoneID,
KeyID: d.SSHKeyID,
DockerMachine: true,
}
client := d.getClient()
instance, err := client.Cloud.Create(createRequest)
if err != nil {
return err
}
log.Debugf("Instance service ID: %d", instance.ServiceID)
d.ServiceID = instance.ServiceID
for {
details, err := client.Cloud.Get(d.ServiceID)
if err != nil {
log.Debugf("Waiting for VM creation... (Error: %v)", err)
time.Sleep(3 * time.Second)
continue
}
log.Debug("Instance created")
d.IPAddress = details.MainIPaddress
if d.IPAddress != "" {
break
}
}
log.Infof("Initializing instance on IP address: %s", d.IPAddress)
log.Debugf("Created instance ID %d, IP address %s",
d.ServiceID,
d.IPAddress)
return nil
}
func (d *Driver) createSSHKey() (int, error) {
if err := ssh.GenerateSSHKey(d.GetSSHKeyPath()); err != nil {
return 0, err
}
publicKey, err := ioutil.ReadFile(d.publicSSHKeyPath())
if err != nil {
return 0, err
}
createRequest := &goubi.AddKeyParams{
KeyName: d.MachineName,
PubKey: string(publicKey),
}
key, err := d.getClient().Cloud.AddKey(createRequest)
if err != nil {
return key, err
}
return key, nil
}
func (d *Driver) GetURL() (string, error) {
ip, err := d.GetIP()
if err != nil {
return "", err
}
return fmt.Sprintf("tcp://%s:2376", ip), nil
}
func (d *Driver) GetIP() (string, error) {
if d.IPAddress == "" {
return "", fmt.Errorf("IP address is not set")
}
return d.IPAddress, nil
}
func (d *Driver) GetState() (state.State, error) {
instance, err := d.getClient().Cloud.Get(d.ServiceID)
if err != nil {
return state.Error, err
}
switch instance.State {
case "online":
return state.Running, nil
case "offline":
return state.Stopped, nil
}
return state.None, nil
}
func (d *Driver) Start() error {
_, err := d.getClient().Cloud.Start(d.ServiceID)
return err
}
func (d *Driver) Stop() error {
_, err := d.getClient().Cloud.Stop(d.ServiceID)
return err
}
func (d *Driver) Remove() error {
client := d.getClient()
if _, err := client.Cloud.RemoveKey(d.SSHKeyID); err != nil {
log.Infof("Remove Key: " + err.Error())
}
if _, err := client.Cloud.Destroy(d.ServiceID); err != nil {
log.Infof("Destroy Cloud: " + err.Error())
}
return nil
}
func (d *Driver) Restart() error {
_, err := d.getClient().Cloud.Reboot(d.ServiceID)
return err
}
func (d *Driver) Kill() error {
_, err := d.getClient().Cloud.Stop(d.ServiceID)
return err
}
func (d *Driver) getClient() *goubi.UbiServices {
return goubi.NewUbiClient(d.ClientID, d.Username, d.Token, true)
}
func (d *Driver) publicSSHKeyPath() string {
return d.GetSSHKeyPath() + ".pub"
}