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vultr.go
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vultr.go
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package vultr
import "github.com/LunaNode/cloug/provider/common"
import "github.com/LunaNode/cloug/service/compute"
import vultr "github.com/LunaNode/vultr/lib"
import "fmt"
import "strconv"
import "strings"
const DEFAULT_NAME = "cloug"
const DEFAULT_REGION = "New Jersey"
type Vultr struct {
client *vultr.Client
}
func (vt *Vultr) ComputeService() compute.Service {
return vt
}
func (vt *Vultr) findOSByName(name string) (int, error) {
osList, err := vt.client.GetOS()
if err != nil {
return 0, err
}
for _, os := range osList {
if os.Name == name {
return os.ID, nil
}
}
return 0, fmt.Errorf("no OS found matching %s", name)
}
func (vt *Vultr) findRegion(str string) (int, error) {
// if str is decimal integer, then use that
id, err := strconv.Atoi(str)
if err == nil {
return id, nil
}
regions, err := vt.client.GetRegions()
if err != nil {
return 0, fmt.Errorf("error listing regions: %v", err)
}
for _, region := range regions {
if strings.ToLower(region.Name) == strings.ToLower(str) {
return region.ID, nil
}
}
return 0, fmt.Errorf("could not find region with name matching %s", str)
}
func (vt *Vultr) CreateInstance(instance *compute.Instance) (*compute.Instance, error) {
if instance.PublicKey.ID == "" && len(instance.PublicKey.Key) > 0 {
return common.KeypairServiceCreateWrapper(vt, vt, instance)
}
imageID, err := common.GetMatchingImageID(vt, &instance.Image)
if err != nil {
return nil, err
}
flavorID, err := common.GetMatchingFlavorID(vt, &instance.Flavor)
if err != nil {
return nil, err
}
flavorIDInt, err := strconv.Atoi(flavorID)
if err != nil {
return nil, fmt.Errorf("invalid flavor ID: %s", flavorID)
}
name := instance.Name
if name == "" {
name = DEFAULT_NAME
}
serverOptions := &vultr.ServerOptions{
PrivateNetworking: instance.Detail("private_networking", "yes") == "yes",
IPV6: instance.Detail("ipv6", "yes") == "yes",
AutoBackups: instance.Detail("auto_backups", "no") == "yes",
DontNotifyOnActivate: instance.Detail("dont_notify_on_activate", "no") == "yes",
}
imageParts := strings.SplitN(imageID, ":", 2)
if len(imageParts) != 2 {
return nil, fmt.Errorf("malformed image ID: missing colon")
}
if imageParts[0] == "iso" {
customOSID, err := vt.findOSByName("Custom")
if err != nil {
return nil, fmt.Errorf("failed to get custom OS for creation from ISO: %v", err)
}
serverOptions.OS = customOSID
serverOptions.ISO, _ = strconv.Atoi(imageParts[1])
} else if imageParts[0] == "os" {
serverOptions.OS, _ = strconv.Atoi(imageParts[1])
} else if imageParts[0] == "snapshot" {
snapshotOSID, err := vt.findOSByName("Snapshot")
if err != nil {
return nil, fmt.Errorf("failed to get snapshot OS for creation from snapshot: %v", err)
}
serverOptions.OS = snapshotOSID
serverOptions.Snapshot = imageParts[1]
} else if imageParts[0] == "app" {
appOSID, err := vt.findOSByName("Application")
if err != nil {
return nil, fmt.Errorf("failed to get application OS for creation from application: %v", err)
}
serverOptions.OS = appOSID
serverOptions.Application, _ = strconv.Atoi(imageParts[1])
} else {
return nil, fmt.Errorf("invalid image type " + imageParts[0])
}
if instance.PublicKey.ID != "" {
serverOptions.SSHKey = instance.PublicKey.ID
}
region := DEFAULT_REGION
if instance.Region != "" {
region = instance.Region
}
regionID, err := vt.findRegion(region)
if err != nil {
return nil, fmt.Errorf("failed to identify region ID: %v", err)
}
server, err := vt.client.CreateServer(name, regionID, flavorIDInt, serverOptions)
if err != nil {
return nil, err
} else {
return &compute.Instance{
ID: server.ID,
}, nil
}
}
func (vt *Vultr) DeleteInstance(instanceID string) error {
return vt.client.DeleteServer(instanceID)
}
func (vt *Vultr) mapInstanceStatus(status string, powerStatus string) compute.InstanceStatus {
if status == "pending" {
return "installing"
} else if status == "active" {
if powerStatus == "stopped" {
return compute.StatusOffline
} else if powerStatus == "running" {
return compute.StatusOnline
} else {
return compute.InstanceStatus(powerStatus)
}
} else {
return compute.InstanceStatus(status)
}
}
func (vt *Vultr) serverToInstance(server vultr.Server) *compute.Instance {
return &compute.Instance{
ID: server.ID,
Name: server.Name,
Region: fmt.Sprintf("%d", server.RegionID),
IP: server.MainIP,
PrivateIP: server.InternalIP,
Flavor: compute.Flavor{ID: strconv.Itoa(server.PlanID)},
Password: server.DefaultPassword,
BandwidthUsed: int64(server.CurrentBandwidth) * 1024 * 1024 * 1024,
Status: vt.mapInstanceStatus(server.Status, server.PowerStatus),
}
}
func (vt *Vultr) ListInstances() ([]*compute.Instance, error) {
servers, err := vt.client.GetServers()
if err != nil {
return nil, err
}
instances := make([]*compute.Instance, len(servers))
for i, server := range servers {
instances[i] = vt.serverToInstance(server)
}
return instances, nil
}
func (vt *Vultr) GetInstance(instanceID string) (*compute.Instance, error) {
server, err := vt.client.GetServer(instanceID)
if err != nil {
return nil, err
} else {
return vt.serverToInstance(server), nil
}
}
func (vt *Vultr) StartInstance(instanceID string) error {
return vt.client.StartServer(instanceID)
}
func (vt *Vultr) StopInstance(instanceID string) error {
return vt.client.HaltServer(instanceID)
}
func (vt *Vultr) RebootInstance(instanceID string) error {
return vt.client.RebootServer(instanceID)
}
func (vt *Vultr) GetVNC(instanceID string) (string, error) {
server, err := vt.client.GetServer(instanceID)
if err != nil {
return "", fmt.Errorf("failed to get server details: %v", err)
} else if server.KVMUrl == "" {
return "", fmt.Errorf("console is not ready yet")
} else {
return server.KVMUrl, nil
}
}
func (vt *Vultr) CreateImage(imageTemplate *compute.Image) (*compute.Image, error) {
if imageTemplate.SourceInstance != "" {
name := DEFAULT_NAME
if imageTemplate.Name != "" {
name = imageTemplate.Name
}
snapshot, err := vt.client.CreateSnapshot(imageTemplate.SourceInstance, name)
if err != nil {
return nil, err
} else {
return &compute.Image{
ID: fmt.Sprintf("snapshot:%s", snapshot.ID),
SourceInstance: imageTemplate.SourceInstance,
}, nil
}
} else if imageTemplate.SourceURL != "" {
return nil, fmt.Errorf("creating image from source URL is not supported on vultr provider")
} else {
return nil, fmt.Errorf("neither source instance nor source URL is set")
}
}
func (vt *Vultr) mapSnapshot(snapshot *vultr.Snapshot) *compute.Image {
image := &compute.Image{
ID: fmt.Sprintf("snapshot:%s", snapshot.ID),
Name: snapshot.Description,
Size: snapshot.Size,
}
if snapshot.Status == "complete" {
image.Status = compute.ImageAvailable
} else {
image.Status = compute.ImagePending
}
return image
}
func (vt *Vultr) FindImage(image *compute.Image) (string, error) {
return "", fmt.Errorf("operation not supported")
}
func (vt *Vultr) ListImages() ([]*compute.Image, error) {
var images []*compute.Image
osList, err := vt.client.GetOS()
if err != nil {
return nil, err
}
for _, os := range osList {
images = append(images, &compute.Image{
ID: fmt.Sprintf("os:%d", os.ID),
Name: os.Name,
})
}
apps, err := vt.client.GetApplications()
if err != nil {
return nil, err
}
for _, app := range apps {
images = append(images, &compute.Image{
ID: fmt.Sprintf("app:%d", app.ID),
Name: app.Name,
})
}
snapshots, err := vt.client.GetSnapshots()
if err != nil {
return nil, err
}
for _, snapshot := range snapshots {
images = append(images, vt.mapSnapshot(&snapshot))
}
return images, nil
}
func (vt *Vultr) GetImage(imageID string) (*compute.Image, error) {
imageParts := strings.SplitN(imageID, ":", 2)
if len(imageParts) != 2 {
return nil, fmt.Errorf("malformed image identification: missing colon")
} else if imageParts[0] != "snapshot" {
return nil, fmt.Errorf("GetImage only supports snapshot images")
}
snapshots, err := vt.client.GetSnapshots()
if err != nil {
return nil, err
}
for _, snapshot := range snapshots {
if snapshot.ID == imageParts[1] {
return vt.mapSnapshot(&snapshot), nil
}
}
return nil, fmt.Errorf("image not found")
}
func (vt *Vultr) DeleteImage(imageID string) error {
imageParts := strings.SplitN(imageID, ":", 2)
if len(imageParts) != 2 {
return fmt.Errorf("malformed image identification: missing colon")
} else if imageParts[0] != "snapshot" {
return fmt.Errorf("can only delete snapshot images")
}
return vt.client.DeleteSnapshot(imageParts[1])
}
func (vt *Vultr) ListFlavors() ([]*compute.Flavor, error) {
apiPlans, err := vt.client.GetPlans()
if err != nil {
return nil, err
}
flavors := make([]*compute.Flavor, len(apiPlans))
for i, apiPlan := range apiPlans {
flavors[i] = &compute.Flavor{
ID: strconv.Itoa(apiPlan.ID),
Name: apiPlan.Name,
MemoryMB: apiPlan.RAM,
NumCores: apiPlan.VCpus,
DiskGB: apiPlan.Disk,
}
}
return flavors, nil
}
func (vt *Vultr) FindFlavor(flavor *compute.Flavor) (string, error) {
flavors, err := vt.ListFlavors()
if err != nil {
return "", fmt.Errorf("error listing flavors: %v", err)
}
return common.MatchFlavor(flavor, flavors), nil
}
func (vt *Vultr) ListPublicKeys() ([]*compute.PublicKey, error) {
keys, err := vt.client.GetSSHKeys()
if err != nil {
return nil, err
}
publicKeys := make([]*compute.PublicKey, len(keys))
for i, key := range keys {
publicKeys[i] = &compute.PublicKey{
ID: key.ID,
Label: key.Name,
Key: []byte(key.Key),
}
}
return publicKeys, nil
}
func (vt *Vultr) ImportPublicKey(key *compute.PublicKey) (*compute.PublicKey, error) {
return common.ImportPublicKeyWrapper(key, func(label string, key string) (string, error) {
vtKey, err := vt.client.CreateSSHKey(label, key)
if err != nil {
return "", err
} else {
return vtKey.ID, nil
}
})
}
func (vt *Vultr) RemovePublicKey(keyID string) error {
return vt.client.DeleteSSHKey(keyID)
}