func DeleteVM(name string) error {
gcUtil("deleteinstance", "--delete_boot_pd", "-f", name)
gcUtil("deletedisk", "-f", name)
dir := filepath.Join(util.HomePath(), ".capstan/instances/gce", name)
c := &VMConfig{
InstanceDir: dir,
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd := exec.Command("rm", "-f", c.ConfigFile)
_, err := cmd.Output()
if err != nil {
fmt.Printf("rm failed: %s", c.ConfigFile)
return err
}
cmd = exec.Command("rmdir", c.InstanceDir)
_, err = cmd.Output()
if err != nil {
fmt.Printf("rmdir failed: %s", c.InstanceDir)
return err
}
return nil
}
func StopVM(name string) error {
dir := filepath.Join(util.HomePath(), ".capstan/instances/qemu", name)
c := &VMConfig{
Monitor: filepath.Join(dir, "osv.monitor"),
}
conn, err := net.Dial("unix", c.Monitor)
if err != nil {
// The instance is stopped already
return nil
}
writer := bufio.NewWriter(conn)
cmd := `{ "execute": "qmp_capabilities"}`
writer.WriteString(cmd)
cmd = `{ "execute": "system_powerdown" }`
writer.WriteString(cmd)
cmd = `{ "execute": "quit" }`
writer.WriteString(cmd)
writer.Flush()
return nil
}
func DeleteVM(name string) error {
dir := filepath.Join(util.HomePath(), ".capstan/instances/vmw", name)
c := &VMConfig{
VMXFile: filepath.Join(dir, "osv.vmx"),
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd := exec.Command("rm", "-f", c.ConfigFile)
_, err := cmd.Output()
if err != nil {
fmt.Printf("Failed to delete: %s", c.ConfigFile)
return err
}
cmd, err = vmxRun("-T", "ws", "deleteVM", c.VMXFile)
if err != nil {
fmt.Printf("Failed to delete VM %s", c.VMXFile)
return err
}
err = cmd.Wait()
if err != nil {
fmt.Printf("Failed to delete VM %s", c.VMXFile)
return err
}
return nil
}
func DeleteVM(name string) error {
dir := filepath.Join(util.HomePath(), ".capstan/instances/vbox", name)
c := &VMConfig{
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd := exec.Command("rm", "-f", c.ConfigFile)
_, err := cmd.Output()
if err != nil {
fmt.Printf("Failed to delete: %s", c.ConfigFile)
return err
}
return VBoxManage("unregistervm", name, "--delete")
}
func StopVM(name string) error {
dir := filepath.Join(util.HomePath(), ".capstan/instances/vmw", name)
c := &VMConfig{
VMXFile: filepath.Join(dir, "osv.vmx"),
}
cmd, err := vmxRun("-T", "ws", "stop", c.VMXFile)
if err != nil {
fmt.Printf("Failed to stop VM", c.VMXFile)
return err
}
err = cmd.Wait()
if err != nil {
fmt.Printf("Failed to stop VM", c.VMXFile)
return err
}
return nil
}
func LoadConfig(name string) (*VMConfig, error) {
dir := filepath.Join(util.HomePath(), ".capstan/instances/gce", name)
file := filepath.Join(dir, "osv.config")
c := VMConfig{}
data, err := ioutil.ReadFile(file)
if err != nil {
fmt.Printf("Failed to open: %s\n", file)
return nil, err
}
err = yaml.Unmarshal(data, &c)
if err != nil {
return nil, err
}
return &c, nil
}
func Stop(name string) error {
instanceName := ""
instancePlatform := ""
rootDir := filepath.Join(util.HomePath(), ".capstan", "instances")
platforms, _ := ioutil.ReadDir(rootDir)
for _, platform := range platforms {
if platform.IsDir() {
platformDir := filepath.Join(rootDir, platform.Name())
instances, _ := ioutil.ReadDir(platformDir)
for _, instance := range instances {
if instance.IsDir() {
if name == instance.Name() {
instanceName = instance.Name()
instancePlatform = platform.Name()
}
}
}
}
}
if instanceName == "" {
fmt.Printf("Instance: %s not found\n", name)
return nil
}
var err error
switch instancePlatform {
case "qemu":
err = qemu.StopVM(name)
case "vbox":
err = vbox.StopVM(name)
case "vmw":
err = vmw.StopVM(name)
}
if err != nil {
fmt.Printf("Failed to stop instance: %s\n", name)
}
fmt.Printf("Stopped instance: %s\n", name)
return nil
}
func Instances() error {
header := fmt.Sprintf("%-20s %-10s %-10s %-15s", "Name", "Platform", "Status", "Image")
fmt.Println(header)
rootDir := filepath.Join(util.HomePath(), ".capstan", "instances")
platforms, _ := ioutil.ReadDir(rootDir)
for _, platform := range platforms {
if platform.IsDir() {
platformDir := filepath.Join(rootDir, platform.Name())
instances, _ := ioutil.ReadDir(platformDir)
for _, instance := range instances {
if instance.IsDir() {
instanceDir := filepath.Join(platformDir, instance.Name())
printInstance(instance.Name(), platform.Name(), instanceDir)
}
}
}
}
return nil
}
func DeleteVM(name string) error {
dir := filepath.Join(util.HomePath(), ".capstan/instances/qemu", name)
c := &VMConfig{
InstanceDir: dir,
Monitor: filepath.Join(dir, "osv.monitor"),
Image: filepath.Join(dir, "disk.qcow2"),
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd := exec.Command("rm", "-f", c.Image, " ", c.Monitor, " ", c.ConfigFile)
_, err := cmd.Output()
if err != nil {
fmt.Printf("rm failed: %s, %s", c.Image, c.Monitor)
return err
}
cmd = exec.Command("rmdir", c.InstanceDir)
_, err = cmd.Output()
if err != nil {
fmt.Printf("rmdir failed: %s", c.InstanceDir)
return err
}
return nil
}
func Run(repo *util.Repo, config *RunConfig) error {
var path string
var cmd *exec.Cmd
// Start an existing instance
if config.ImageName == "" && config.InstanceName != "" {
instanceName, instancePlatform := util.SearchInstance(config.InstanceName)
if instanceName != "" {
defer fmt.Println("")
fmt.Printf("Created instance: %s\n", instanceName)
// Do not set RawTerm for gce
if instancePlatform != "gce" {
util.RawTerm()
defer util.ResetTerm()
}
var err error
switch instancePlatform {
case "qemu":
c, _ := qemu.LoadConfig(instanceName)
cmd, err = qemu.LaunchVM(c)
case "vbox":
c, _ := vbox.LoadConfig(instanceName)
cmd, err = vbox.LaunchVM(c)
case "vmw":
c, _ := vmw.LoadConfig(instanceName)
cmd, err = vmw.LaunchVM(c)
case "gce":
c, _ := gce.LoadConfig(instanceName)
cmd, err = gce.LaunchVM(c)
}
if err != nil {
return err
}
if cmd != nil {
return cmd.Wait()
}
return nil
} else {
// The InstanceName is actually a ImageName
// so, cmd like "capstan run cloudius/osv" will work
config.ImageName = config.InstanceName
config.InstanceName = strings.Replace(config.InstanceName, "/", "-", -1)
return Run(repo, config)
}
// Both ImageName and InstanceName are specified
} else if config.ImageName != "" && config.InstanceName != "" {
if _, err := os.Stat(config.ImageName); os.IsNotExist(err) {
if repo.ImageExists(config.Hypervisor, config.ImageName) {
path = repo.ImagePath(config.Hypervisor, config.ImageName)
} else if image.IsCloudImage(config.ImageName) {
path = config.ImageName
} else if util.IsRemoteImage(config.ImageName) {
err := Pull(repo, config.Hypervisor, config.ImageName)
if err != nil {
return err
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
} else {
return fmt.Errorf("%s: no such image", config.ImageName)
}
if config.Hypervisor == "gce" && !image.IsCloudImage(config.ImageName) {
str, err := ioutil.ReadFile(path)
if err != nil {
return err
}
path = string(str)
}
} else {
path = config.ImageName
}
deleteInstance(config.InstanceName)
// Valid only when Capstanfile is present
} else if config.ImageName == "" && config.InstanceName == "" {
config.ImageName = repo.DefaultImage()
config.InstanceName = config.ImageName
if config.ImageName == "" {
return fmt.Errorf("No Capstanfile found, unable to run.")
}
if !repo.ImageExists(config.Hypervisor, config.ImageName) {
if !util.ConfigExists("Capstanfile") {
return fmt.Errorf("%s: no such image", config.ImageName)
}
err := Build(repo, config.Hypervisor, config.ImageName, config.Verbose)
if err != nil {
return err
}
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
deleteInstance(config.InstanceName)
// Cmdline option is not valid
} else {
usage()
return nil
}
format, err := image.Probe(path)
if err != nil {
return err
}
if format == image.Unknown {
return fmt.Errorf("%s: image format not recognized, unable to run it.", path)
}
size, err := util.ParseMemSize(config.Memory)
if err != nil {
return err
}
defer fmt.Println("")
id := config.InstanceName
fmt.Printf("Created instance: %s\n", id)
// Do not set RawTerm for gce
if config.Hypervisor != "gce" {
util.RawTerm()
defer util.ResetTerm()
}
switch config.Hypervisor {
case "qemu":
dir := filepath.Join(os.Getenv("HOME"), ".capstan/instances/qemu", id)
bridge := config.Bridge
if bridge == "" {
bridge = "virbr0"
}
config := &qemu.VMConfig{
Name: id,
Image: path,
Verbose: true,
Memory: size,
Cpus: config.Cpus,
Networking: config.Networking,
Bridge: bridge,
NatRules: config.NatRules,
BackingFile: true,
InstanceDir: dir,
Monitor: filepath.Join(dir, "osv.monitor"),
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd, err = qemu.LaunchVM(config)
case "vbox":
if format != image.VDI && format != image.VMDK {
return fmt.Errorf("%s: image format of %s is not supported, unable to run it.", config.Hypervisor, path)
}
dir := filepath.Join(util.HomePath(), ".capstan/instances/vbox", id)
bridge := config.Bridge
if bridge == "" {
bridge = "vboxnet0"
}
config := &vbox.VMConfig{
Name: id,
Dir: filepath.Join(util.HomePath(), ".capstan/instances/vbox"),
Image: path,
Memory: size,
Cpus: config.Cpus,
Networking: config.Networking,
Bridge: bridge,
NatRules: config.NatRules,
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd, err = vbox.LaunchVM(config)
case "gce":
if format != image.GCE_TARBALL && format != image.GCE_GS {
return fmt.Errorf("%s: image format of %s is not supported, unable to run it.", config.Hypervisor, path)
}
dir := filepath.Join(util.HomePath(), ".capstan/instances/gce", id)
c := &gce.VMConfig{
Name: id,
Image: id,
Network: "default",
MachineType: "n1-standard-1",
Zone: "us-central1-a",
ConfigFile: filepath.Join(dir, "osv.config"),
InstanceDir: dir,
}
if format == image.GCE_TARBALL {
c.CloudStoragePath = strings.TrimSuffix(config.GCEUploadDir, "/") + "/" + id + ".tar.gz"
c.Tarball = path
} else {
c.CloudStoragePath = path
c.Tarball = ""
}
cmd, err = gce.LaunchVM(c)
case "vmw":
if format != image.VMDK {
return fmt.Errorf("%s: image format of %s is not supported, unable to run it.", config.Hypervisor, path)
}
dir := filepath.Join(util.HomePath(), ".capstan/instances/vmw", id)
config := &vmw.VMConfig{
Name: id,
Dir: dir,
Image: filepath.Join(dir, "osv.vmdk"),
Memory: size,
Cpus: config.Cpus,
NatRules: config.NatRules,
VMXFile: filepath.Join(dir, "osv.vmx"),
InstanceDir: dir,
OriginalVMDK: path,
ConfigFile: filepath.Join(dir, "osv.config"),
}
cmd, err = vmw.LaunchVM(config)
default:
err = fmt.Errorf("%s: is not a supported hypervisor", config.Hypervisor)
}
if err != nil {
return err
}
if cmd != nil {
return cmd.Wait()
} else {
return nil
}
}
func Run(repo *util.Repo, config *RunConfig) error {
var path string
if config.ImageName != "" {
if _, err := os.Stat(config.ImageName); os.IsNotExist(err) {
if repo.ImageExists(config.Hypervisor, config.ImageName) {
path = repo.ImagePath(config.Hypervisor, config.ImageName)
} else if util.IsRemoteImage(config.ImageName) {
err := Pull(repo, config.Hypervisor, config.ImageName)
if err != nil {
return err
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
} else {
return fmt.Errorf("%s: no such image", config.ImageName)
}
} else {
path = config.ImageName
}
} else {
config.ImageName = repo.DefaultImage()
if config.ImageName == "" {
return fmt.Errorf("No Capstanfile found, unable to run.")
}
if !repo.ImageExists(config.Hypervisor, config.ImageName) {
if !util.ConfigExists("Capstanfile") {
return fmt.Errorf("%s: no such image", config.ImageName)
}
err := Build(repo, config.Hypervisor, config.ImageName, config.Verbose)
if err != nil {
return err
}
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
}
format, err := image.Probe(path)
if err != nil {
return err
}
if format == image.Unknown {
return fmt.Errorf("%s: image format not recognized, unable to run it.", path)
}
size, err := util.ParseMemSize(config.Memory)
if err != nil {
return err
}
var cmd *exec.Cmd
switch config.Hypervisor {
case "qemu":
id := util.ID()
dir := filepath.Join(os.Getenv("HOME"), ".capstan/instances/qemu", id)
config := &qemu.VMConfig{
Name: id,
Image: path,
Verbose: true,
Memory: size,
Cpus: config.Cpus,
NatRules: config.NatRules,
BackingFile: true,
InstanceDir: dir,
Monitor: filepath.Join(dir, "osv.monitor"),
}
fmt.Printf("Created instance: %s\n", id)
tio, _ := util.RawTerm()
defer util.ResetTerm(tio)
cmd, err = qemu.LaunchVM(config)
defer qemu.DeleteVM(config)
case "vbox":
if format != image.VDI && format != image.VMDK {
return fmt.Errorf("%s: image format of %s is not supported, unable to run it.", config.Hypervisor, path)
}
id := util.ID()
config := &vbox.VMConfig{
Name: id,
Dir: filepath.Join(util.HomePath(), ".capstan/instances/vbox"),
Image: path,
Memory: size,
Cpus: config.Cpus,
NatRules: config.NatRules,
}
fmt.Printf("Created instance: %s\n", id)
tio, _ := util.RawTerm()
defer util.ResetTerm(tio)
cmd, err = vbox.LaunchVM(config)
defer vbox.DeleteVM(config)
case "gce":
id := util.ID()
bucket := "osvimg"
config := &gce.VMConfig{
Name: "osv-capstan-" + id,
Image: "osv-capstan-" + id,
Network: "default",
MachineType: "n1-standard-1",
Zone: "us-central1-a",
CloudStoragePath: "gs://" + bucket + "/osv-capstan-" + id + ".tar.gz",
Tarball: path,
}
cmd, err = gce.LaunchVM(config)
case "vmw":
id := util.ID()
if format != image.VMDK {
return fmt.Errorf("%s: image format of %s is not supported, unable to run it.", config.Hypervisor, path)
}
dir := filepath.Join(util.HomePath(), ".capstan/instances/vmw", id)
config := &vmw.VMConfig{
Name: id,
Dir: dir,
Image: filepath.Join(dir, "osv.vmdk"),
Memory: size,
Cpus: config.Cpus,
NatRules: config.NatRules,
VMXFile: filepath.Join(dir, "osv.vmx"),
InstanceDir: dir,
OriginalVMDK: path,
}
fmt.Printf("Created instance: %s\n", id)
tio, _ := util.RawTerm()
defer util.ResetTerm(tio)
cmd, err = vmw.LaunchVM(config)
defer vmw.DeleteVM(config)
default:
err = fmt.Errorf("%s: is not a supported hypervisor", config.Hypervisor)
}
if err != nil {
return err
}
if cmd != nil {
return cmd.Wait()
} else {
return nil
}
}