func (r *Repo) DefaultImage() string {
if !core.IsTemplateFile("Capstanfile") {
return ""
}
pwd, err := os.Getwd()
if err != nil {
return ""
}
image := filepath.Base(pwd)
return image
}
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, err := qemu.LoadConfig(instanceName)
if err != nil {
return err
}
cmd, err = qemu.LaunchVM(c)
case "vbox":
c, err := vbox.LoadConfig(instanceName)
if err != nil {
return err
}
cmd, err = vbox.LaunchVM(c)
case "vmw":
c, err := vmw.LoadConfig(instanceName)
if err != nil {
return err
}
cmd, err = vmw.LaunchVM(c)
case "gce":
c, err := gce.LoadConfig(instanceName)
if err != nil {
return err
}
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)
}
} else if config.ImageName != "" && config.InstanceName != "" {
// Both ImageName and InstanceName are specified
if f, err := os.Stat(config.ImageName); (f != nil && f.IsDir()) || 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 {
remote, err := util.IsRemoteImage(repo.URL, config.ImageName)
if err != nil {
return err
}
if remote {
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 = strings.Replace(string(str), "\n", "", -1)
}
} else {
if strings.HasSuffix(config.ImageName, ".jar") {
config, err = buildJarImage(repo, config)
if err != nil {
return err
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
} else {
path = config.ImageName
}
}
deleteInstance(config.InstanceName)
} else if config.ImageName == "" && config.InstanceName == "" {
// Valid only when Capstanfile is present
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 !core.IsTemplateFile("Capstanfile") {
return fmt.Errorf("%s: no such image", config.ImageName)
}
image := &core.Image{
Name: config.ImageName,
Hypervisor: config.Hypervisor,
}
template, err := core.ReadTemplateFile("Capstanfile")
if err != nil {
return err
}
if err := Build(repo, image, template, config.Verbose, config.Memory); err != nil {
return err
}
}
path = repo.ImagePath(config.Hypervisor, config.ImageName)
deleteInstance(config.InstanceName)
} else {
// Cmdline option is not valid
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(util.ConfigDir(), "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"),
MAC: config.MAC,
}
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.ConfigDir(), "instances/vbox", id)
bridge := config.Bridge
if bridge == "" {
bridge = "vboxnet0"
}
config := &vbox.VMConfig{
Name: id,
Dir: filepath.Join(util.ConfigDir(), "instances/vbox"),
Image: path,
Memory: size,
Cpus: config.Cpus,
Networking: config.Networking,
Bridge: bridge,
NatRules: config.NatRules,
ConfigFile: filepath.Join(dir, "osv.config"),
MAC: config.MAC,
}
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.ConfigDir(), "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.ConfigDir(), "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
}
}