mirror of https://github.com/linka-cloud/d2vm.git
333 lines
8.7 KiB
Go
333 lines
8.7 KiB
Go
package run
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import (
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"bytes"
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"fmt"
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"io"
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"net"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"github.com/containerd/console"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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var (
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VboxCmd = &cobra.Command{
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Use: "vbox [options] image-path",
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Short: "Run the virtual machine image with Virtualbox",
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Args: cobra.ExactArgs(1),
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Run: Vbox,
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}
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vboxmanageFlag string
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vmName string
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networks VBNetworks
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)
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func init() {
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flags := VboxCmd.Flags()
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// Display flags
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flags.Bool("gui", false, "Show the VM GUI")
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// vbox options
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flags.StringVar(&vboxmanageFlag, "vboxmanage", "VBoxManage", "VBoxManage binary to use")
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flags.StringVar(&vmName, "name", "", "Name of the Virtualbox VM")
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// Paths and settings for disks
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flags.Var(&disks, "disk", "Disk config, may be repeated. [file=]path[,size=1G][,format=raw]")
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// VM configuration
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flags.Uint("cpus", 1, "Number of CPUs")
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flags.Uint("mem", 1024, "Amount of memory in MB")
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// networking
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flags.Var(&networks, "networking", "Network config, may be repeated. [type=](null|nat|bridged|intnet|hostonly|generic|natnetwork[<devicename>])[,[bridge|host]adapter=<interface>]")
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if runtime.GOOS == "windows" {
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log.Fatalf("TODO: Windows is not yet supported")
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}
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}
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func Vbox(cmd *cobra.Command, args []string) {
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path := args[0]
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vboxmanage, err := exec.LookPath(vboxmanageFlag)
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if err != nil {
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log.Fatalf("Cannot find management binary %s: %v", vboxmanageFlag, err)
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}
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name := vmName
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if name == "" {
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name = strings.TrimSuffix(filepath.Base(path), filepath.Ext(path))
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}
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// remove machine in case it already exists
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cleanup(vboxmanage, name)
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_, out, err := manage(vboxmanage, "createvm", "--name", name, "--register")
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if err != nil {
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log.Fatalf("createvm error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--acpi", "on")
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if err != nil {
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log.Fatalf("modifyvm --acpi error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--memory", fmt.Sprintf("%d", mem))
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if err != nil {
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log.Fatalf("modifyvm --memory error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--cpus", fmt.Sprintf("%d", cpus))
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if err != nil {
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log.Fatalf("modifyvm --cpus error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--firmware", "bios")
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if err != nil {
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log.Fatalf("modifyvm --firmware error: %v\n%s", err, out)
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}
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// set up serial console
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_, out, err = manage(vboxmanage, "modifyvm", name, "--uart1", "0x3F8", "4")
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if err != nil {
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log.Fatalf("modifyvm --uart error: %v\n%s", err, out)
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}
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consolePath := filepath.Join(os.TempDir(), "d2vm-vb", name, "console")
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if err := os.MkdirAll(filepath.Dir(consolePath), os.ModePerm); err != nil {
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log.Fatal(err)
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}
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if runtime.GOOS != "windows" {
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consolePath, err = filepath.Abs(consolePath)
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if err != nil {
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log.Fatalf("Bad path: %v", err)
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}
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} else {
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// TODO use a named pipe on Windows
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--uartmode1", "client", consolePath)
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if err != nil {
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log.Fatalf("modifyvm --uartmode error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "storagectl", name, "--name", "IDE Controller", "--add", "ide")
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if err != nil {
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log.Fatalf("storagectl error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "storageattach", name, "--storagectl", "IDE Controller", "--port", "1", "--device", "0", "--type", "hdd", "--medium", path)
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if err != nil {
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log.Fatalf("storageattach error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, "--boot1", "disk")
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if err != nil {
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log.Fatalf("modifyvm --boot error: %v\n%s", err, out)
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}
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if len(disks) > 0 {
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_, out, err = manage(vboxmanage, "storagectl", name, "--name", "SATA", "--add", "sata")
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if err != nil {
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log.Fatalf("storagectl error: %v\n%s", err, out)
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}
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}
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for i, d := range disks {
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id := strconv.Itoa(i)
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if d.Size != 0 && d.Format == "" {
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d.Format = "raw"
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}
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if d.Format != "raw" && d.Path == "" {
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log.Fatal("vbox currently can only create raw disks")
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}
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if d.Path == "" && d.Size == 0 {
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log.Fatal("please specify an existing disk file or a size")
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}
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if d.Path == "" {
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d.Path = "disk" + id + ".img"
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if err := os.Truncate(d.Path, int64(d.Size)*int64(1048576)); err != nil {
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log.Fatalf("Cannot create disk: %v", err)
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}
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}
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_, out, err = manage(vboxmanage, "storageattach", name, "--storagectl", "SATA", "--port", "0", "--device", id, "--type", "hdd", "--medium", d.Path)
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if err != nil {
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log.Fatalf("storageattach error: %v\n%s", err, out)
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}
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}
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for i, d := range networks {
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nic := i + 1
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_, out, err = manage(vboxmanage, "modifyvm", name, fmt.Sprintf("--nictype%d", nic), "virtio")
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if err != nil {
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log.Fatalf("modifyvm --nictype error: %v\n%s", err, out)
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, fmt.Sprintf("--nic%d", nic), d.Type)
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if err != nil {
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log.Fatalf("modifyvm --nic error: %v\n%s", err, out)
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}
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if d.Type == "hostonly" {
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_, out, err = manage(vboxmanage, "modifyvm", name, fmt.Sprintf("--hostonlyadapter%d", nic), d.Adapter)
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if err != nil {
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log.Fatalf("modifyvm --hostonlyadapter error: %v\n%s", err, out)
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}
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} else if d.Type == "bridged" {
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_, out, err = manage(vboxmanage, "modifyvm", name, fmt.Sprintf("--bridgeadapter%d", nic), d.Adapter)
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if err != nil {
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log.Fatalf("modifyvm --bridgeadapter error: %v\n%s", err, out)
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}
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}
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_, out, err = manage(vboxmanage, "modifyvm", name, fmt.Sprintf("--cableconnected%d", nic), "on")
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if err != nil {
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log.Fatalf("modifyvm --cableconnected error: %v\n%s", err, out)
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}
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}
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// create socket
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_ = os.Remove(consolePath)
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ln, err := net.Listen("unix", consolePath)
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if err != nil {
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log.Fatalf("Cannot listen on console socket %s: %v", consolePath, err)
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}
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var vmType string
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if enableGUI {
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vmType = "gui"
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} else {
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vmType = "headless"
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}
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term := console.Current()
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ws, err := term.Size()
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if err != nil {
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log.Fatal(err)
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}
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if err := term.Resize(ws); err != nil {
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log.Fatal(err)
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}
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if err := term.SetRaw(); err != nil {
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log.Fatal(err)
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}
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defer term.Close()
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_, out, err = manage(vboxmanage, "startvm", name, "--type", vmType)
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if err != nil {
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log.Fatalf("startvm error: %v\n%s", err, out)
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}
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c := make(chan os.Signal, 1)
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signal.Notify(c, os.Interrupt)
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go func() {
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<-c
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cleanup(vboxmanage, name)
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os.Exit(1)
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}()
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socket, err := ln.Accept()
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if err != nil {
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log.Fatalf("Accept error: %v", err)
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}
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go func() {
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if _, err := io.Copy(socket, term); err != nil {
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cleanup(vboxmanage, name)
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log.Fatalf("Copy error: %v", err)
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}
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cleanup(vboxmanage, name)
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os.Exit(0)
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}()
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go func() {
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if _, err := io.Copy(term, socket); err != nil {
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cleanup(vboxmanage, name)
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log.Fatalf("Copy error: %v", err)
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}
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cleanup(vboxmanage, name)
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os.Exit(0)
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}()
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// wait forever
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select {}
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}
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func cleanup(vboxmanage string, name string) {
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if _, _, err := manage(vboxmanage, "controlvm", name, "poweroff"); err != nil {
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return
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}
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_, out, err := manage(vboxmanage, "storageattach", name, "--storagectl", "IDE Controller", "--port", "1", "--device", "0", "--type", "hdd", "--medium", "emptydrive")
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if err != nil {
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log.Errorf("storageattach error: %v\n%s", err, out)
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}
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for i := range disks {
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id := strconv.Itoa(i)
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_, out, err := manage(vboxmanage, "storageattach", name, "--storagectl", "SATA", "--port", "0", "--device", id, "--type", "hdd", "--medium", "emptydrive")
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if err != nil {
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log.Errorf("storageattach error: %v\n%s", err, out)
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}
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}
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if _, out, err = manage(vboxmanage, "unregistervm", name, "--delete"); err != nil {
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log.Errorf("unregistervm error: %v\n%s", err, out)
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}
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}
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func manage(vboxmanage string, args ...string) (string, string, error) {
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cmd := exec.Command(vboxmanage, args...)
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log.Debugf("[VBOX]: %s %s", vboxmanage, strings.Join(args, " "))
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var stdout bytes.Buffer
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var stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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return stdout.String(), stderr.String(), err
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}
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// VBNetwork is the config for a Virtual Box network
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type VBNetwork struct {
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Type string
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Adapter string
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}
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// VBNetworks is the type for a list of VBNetwork
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type VBNetworks []VBNetwork
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func (l *VBNetworks) String() string {
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return fmt.Sprint(*l)
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}
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func (l *VBNetworks) Type() string {
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return "vbnetworks"
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}
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// Set is used by flag to configure value from CLI
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func (l *VBNetworks) Set(value string) error {
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d := VBNetwork{}
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s := strings.Split(value, ",")
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for _, p := range s {
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c := strings.SplitN(p, "=", 2)
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switch len(c) {
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case 1:
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d.Type = c[0]
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case 2:
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switch c[0] {
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case "type":
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d.Type = c[1]
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case "adapter", "bridgeadapter", "hostadapter":
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d.Adapter = c[1]
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default:
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return fmt.Errorf("Unknown network config: %s", c[0])
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}
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}
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}
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*l = append(*l, d)
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return nil
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}
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