func startVm(config *startConfig, userPod *pod.UserPod, vmId string) (*hypervisor.Vm, error) {
var (
err error
cpu = 1
mem = 128
)
vbox := config.Vbox
if _, err = os.Stat(vbox); err == nil {
vbox, err = filepath.Abs(vbox)
if err != nil {
fmt.Printf("Cannot get abs path for vbox: %s\n", err.Error())
return nil, err
}
}
if config.Driver == "vbox" {
if _, err = os.Stat(config.Vbox); err != nil {
return nil, err
}
} else {
if _, err = os.Stat(config.Kernel); err != nil {
return nil, err
}
if _, err = os.Stat(config.Initrd); err != nil {
return nil, err
}
}
if userPod.Resource.Vcpu > 0 {
cpu = userPod.Resource.Vcpu
}
if userPod.Resource.Memory > 0 {
mem = userPod.Resource.Memory
}
b := &hypervisor.BootConfig{
Kernel: config.Kernel,
Initrd: config.Initrd,
Bios: "",
Cbfs: "",
Vbox: config.Vbox,
CPU: cpu,
Memory: mem,
}
vm := hypervisor.NewVm(vmId, cpu, mem, false, types.VM_KEEP_NONE)
err = vm.Launch(b)
if err != nil {
fmt.Printf("%s\n", err.Error())
return nil, err
}
return vm, nil
}
func (daemon *Daemon) NewVm(id string, cpu, memory int, lazy bool, keep int) *hypervisor.Vm {
vmId := id
if vmId == "" {
for {
vmId = fmt.Sprintf("vm-%s", pod.RandStr(10, "alpha"))
if _, ok := daemon.VmList[vmId]; !ok {
break
}
}
}
return hypervisor.NewVm(vmId, cpu, memory, lazy, keep)
}
func (vl *VmList) NewVm(id string, cpu, memory int, lazy bool) *hypervisor.Vm {
vmId := id
vl.Lock()
defer vl.Unlock()
if vmId == "" {
for {
vmId = fmt.Sprintf("vm-%s", pod.RandStr(10, "alpha"))
if _, ok := vl.vms[vmId]; !ok {
break
}
}
vl.vms[vmId] = nil
}
return hypervisor.NewVm(vmId, cpu, memory, lazy)
}
func main() {
hypervisor.InterfaceCount = 0
var containerInfoList []*hypervisor.ContainerInfo
var roots []string
var containerId string
var err error
ocffile := flag.String("config", "", "ocf configure file")
kernel := flag.String("kernel", "", "hyper kernel")
initrd := flag.String("initrd", "", "hyper initrd")
vbox := flag.String("vbox", "", "vbox boot iso")
driver := flag.String("driver", "", "hypervisor driver")
flag.Parse()
if *ocffile == "" {
*ocffile = "config.json"
}
if _, err = os.Stat(*ocffile); os.IsNotExist(err) {
fmt.Printf("Please specify ocffile or put config.json under current working directory\n")
return
}
if *vbox == "" {
*vbox = "./vbox.iso"
}
if _, err = os.Stat(*vbox); err == nil {
*vbox, err = filepath.Abs(*vbox)
if err != nil {
fmt.Printf("Cannot get abs path for vbox: %s\n", err.Error())
return
}
}
if *kernel == "" {
*kernel = "./kernel"
}
if _, err = os.Stat(*kernel); err == nil {
*kernel, err = filepath.Abs(*kernel)
if err != nil {
fmt.Printf("Cannot get abs path for kernel: %s\n", err.Error())
return
}
}
if *initrd == "" {
*initrd = "./initrd.img"
}
if _, err = os.Stat(*initrd); err == nil {
*initrd, err = filepath.Abs(*initrd)
if err != nil {
fmt.Printf("Cannot get abs path for initrd: %s\n", err.Error())
return
}
}
if *driver == "" {
*driver = "kvm"
fmt.Printf("Use default hypervisor KVM\n")
}
if hypervisor.HDriver, err = driverloader.Probe(*driver); err != nil {
fmt.Printf("%s\n", err.Error())
return
}
podId := fmt.Sprintf("pod-%s", pod.RandStr(10, "alpha"))
vmId := fmt.Sprintf("vm-%s", pod.RandStr(10, "alpha"))
ocfData, err := ioutil.ReadFile(*ocffile)
if err != nil {
fmt.Printf("%s\n", err.Error())
return
}
userPod, err := pod.OCFConvert2Pod(ocfData)
if err != nil {
fmt.Printf("%s\n", err.Error())
return
}
mypod := hypervisor.NewPod(podId, userPod)
var (
cpu = 1
mem = 128
)
if userPod.Resource.Vcpu > 0 {
cpu = userPod.Resource.Vcpu
}
if userPod.Resource.Memory > 0 {
mem = userPod.Resource.Memory
}
b := &hypervisor.BootConfig{
Kernel: *kernel,
Initrd: *initrd,
Bios: "",
Cbfs: "",
Vbox: *vbox,
CPU: cpu,
Memory: mem,
}
vm := hypervisor.NewVm(vmId, cpu, mem, false, types.VM_KEEP_NONE)
err = vm.Launch(b)
if err != nil {
fmt.Printf("%s\n", err.Error())
return
}
sharedDir := path.Join(hypervisor.BaseDir, vm.Id, hypervisor.ShareDirTag)
for _, c := range userPod.Containers {
var root string
var err error
containerId = GenerateRandomID()
rootDir := path.Join(sharedDir, containerId)
os.MkdirAll(rootDir, 0755)
rootDir = path.Join(rootDir, "rootfs")
if !filepath.IsAbs(c.Image) {
root, err = filepath.Abs(c.Image)
if err != nil {
fmt.Printf("%s\n", err.Error())
return
}
} else {
root = c.Image
}
err = mount(root, rootDir)
if err != nil {
fmt.Printf("mount %s to %s failed: %s\n", root, rootDir, err.Error())
return
}
roots = append(roots, rootDir)
containerInfo := &hypervisor.ContainerInfo{
Id: containerId,
Rootfs: "rootfs",
Image: containerId,
Fstype: "dir",
}
containerInfoList = append(containerInfoList, containerInfo)
mypod.AddContainer(containerId, podId, "", []string{}, types.S_POD_CREATED)
}
qemuResponse := vm.StartPod(mypod, userPod, containerInfoList, nil)
if qemuResponse.Data == nil {
fmt.Printf("StartPod fail: QEMU response data is nil\n")
return
}
fmt.Printf("result: code %d %s\n", qemuResponse.Code, qemuResponse.Cause)
inFd, _ := term.GetFdInfo(os.Stdin)
outFd, isTerminalOut := term.GetFdInfo(os.Stdout)
oldState, err := term.SetRawTerminal(inFd)
if err != nil {
return
}
height, width := getTtySize(outFd, isTerminalOut)
winSize := &hypervisor.WindowSize{
Row: uint16(height),
Column: uint16(width),
}
tag := pod.RandStr(8, "alphanum")
monitorTtySize(vm, tag, outFd, isTerminalOut)
vm.Attach(os.Stdin, os.Stdout, tag, containerId, winSize)
qemuResponse = vm.StopPod(mypod, "yes")
term.RestoreTerminal(inFd, oldState)
for _, root := range roots {
umount(root)
}
if qemuResponse.Data == nil {
fmt.Printf("StopPod fail: QEMU response data is nil\n")
return
}
fmt.Printf("result: code %d %s\n", qemuResponse.Code, qemuResponse.Cause)
}