forked from docker/machine
/
vsphere.go
489 lines (424 loc) · 11.8 KB
/
vsphere.go
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/*
* Copyright 2014 VMware, Inc. All rights reserved. Licensed under the Apache v2 License.
*/
package vmwarevsphere
import (
"archive/tar"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"time"
"github.com/docker/machine/log"
"github.com/codegangsta/cli"
"github.com/docker/machine/drivers"
"github.com/docker/machine/drivers/vmwarevsphere/errors"
"github.com/docker/machine/ssh"
"github.com/docker/machine/state"
"github.com/docker/machine/utils"
)
const (
isoFilename = "boot2docker.iso"
B2DISOName = isoFilename
DefaultCPUNumber = 2
B2DUser = "docker"
B2DPass = "tcuser"
)
type Driver struct {
*drivers.BaseDriver
CPU int
Memory int
DiskSize int
Boot2DockerURL string
IP string
Username string
Password string
Network string
Datastore string
Datacenter string
Pool string
HostIP string
ISO string
}
func init() {
drivers.Register("vmwarevsphere", &drivers.RegisteredDriver{
New: NewDriver,
GetCreateFlags: GetCreateFlags,
})
}
// GetCreateFlags registers the flags this driver adds to
// "docker hosts create"
func GetCreateFlags() []cli.Flag {
return []cli.Flag{
cli.IntFlag{
EnvVar: "VSPHERE_CPU_COUNT",
Name: "vmwarevsphere-cpu-count",
Usage: "vSphere CPU number for docker VM",
Value: 2,
},
cli.IntFlag{
EnvVar: "VSPHERE_MEMORY_SIZE",
Name: "vmwarevsphere-memory-size",
Usage: "vSphere size of memory for docker VM (in MB)",
Value: 2048,
},
cli.IntFlag{
EnvVar: "VSPHERE_DISK_SIZE",
Name: "vmwarevsphere-disk-size",
Usage: "vSphere size of disk for docker VM (in MB)",
Value: 20000,
},
cli.StringFlag{
EnvVar: "VSPHERE_BOOT2DOCKER_URL",
Name: "vmwarevsphere-boot2docker-url",
Usage: "vSphere URL for boot2docker image",
},
cli.StringFlag{
EnvVar: "VSPHERE_VCENTER",
Name: "vmwarevsphere-vcenter",
Usage: "vSphere IP/hostname for vCenter",
},
cli.StringFlag{
EnvVar: "VSPHERE_USERNAME",
Name: "vmwarevsphere-username",
Usage: "vSphere username",
},
cli.StringFlag{
EnvVar: "VSPHERE_PASSWORD",
Name: "vmwarevsphere-password",
Usage: "vSphere password",
},
cli.StringFlag{
EnvVar: "VSPHERE_NETWORK",
Name: "vmwarevsphere-network",
Usage: "vSphere network where the docker VM will be attached",
},
cli.StringFlag{
EnvVar: "VSPHERE_DATASTORE",
Name: "vmwarevsphere-datastore",
Usage: "vSphere datastore for docker VM",
},
cli.StringFlag{
EnvVar: "VSPHERE_DATACENTER",
Name: "vmwarevsphere-datacenter",
Usage: "vSphere datacenter for docker VM",
},
cli.StringFlag{
EnvVar: "VSPHERE_POOL",
Name: "vmwarevsphere-pool",
Usage: "vSphere resource pool for docker VM",
},
cli.StringFlag{
EnvVar: "VSPHERE_COMPUTE_IP",
Name: "vmwarevsphere-compute-ip",
Usage: "vSphere compute host IP where the docker VM will be instantiated",
},
}
}
func NewDriver(machineName string, storePath string, caCert string, privateKey string) (drivers.Driver, error) {
inner := drivers.NewBaseDriver(machineName, storePath, caCert, privateKey)
return &Driver{BaseDriver: inner}, nil
}
func (d *Driver) GetSSHHostname() (string, error) {
return d.GetIP()
}
func (d *Driver) GetSSHUsername() string {
if d.SSHUser == "" {
d.SSHUser = "docker"
}
return d.SSHUser
}
func (d *Driver) DriverName() string {
return "vmwarevsphere"
}
func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
d.SSHUser = "docker"
d.SSHPort = 22
d.CPU = flags.Int("vmwarevsphere-cpu-count")
d.Memory = flags.Int("vmwarevsphere-memory-size")
d.DiskSize = flags.Int("vmwarevsphere-disk-size")
d.Boot2DockerURL = flags.String("vmwarevsphere-boot2docker-url")
d.IP = flags.String("vmwarevsphere-vcenter")
d.Username = flags.String("vmwarevsphere-username")
d.Password = flags.String("vmwarevsphere-password")
d.Network = flags.String("vmwarevsphere-network")
d.Datastore = flags.String("vmwarevsphere-datastore")
d.Datacenter = flags.String("vmwarevsphere-datacenter")
d.Pool = flags.String("vmwarevsphere-pool")
d.HostIP = flags.String("vmwarevsphere-compute-ip")
d.SwarmMaster = flags.Bool("swarm-master")
d.SwarmHost = flags.String("swarm-host")
d.SwarmDiscovery = flags.String("swarm-discovery")
imgPath := utils.GetMachineCacheDir()
commonIsoPath := filepath.Join(imgPath, isoFilename)
d.ISO = path.Join(commonIsoPath)
return nil
}
func (d *Driver) GetURL() (string, error) {
ip, _ := d.GetIP()
if ip == "" {
return "", nil
}
return fmt.Sprintf("tcp://%s:2376", ip), nil
}
func (d *Driver) GetIP() (string, error) {
status, err := d.GetState()
if status != state.Running {
return "", errors.NewInvalidStateError(d.MachineName)
}
vcConn := NewVcConn(d)
rawIP, err := vcConn.VMFetchIP()
if err != nil {
return "", err
}
ip := strings.Trim(strings.Split(rawIP, "\n")[0], " ")
return ip, nil
}
func (d *Driver) GetState() (state.State, error) {
vcConn := NewVcConn(d)
stdout, err := vcConn.VMInfo()
if err != nil {
return state.None, err
}
if strings.Contains(stdout, "poweredOn") {
return state.Running, nil
} else if strings.Contains(stdout, "poweredOff") {
return state.Stopped, nil
}
return state.None, nil
}
func (d *Driver) PreCreateCheck() error {
return nil
}
// the current implementation does the following:
// 1. check whether the docker directory contains the boot2docker ISO
// 2. generate an SSH keypair and bundle it in a tar.
// 3. create a virtual machine with the boot2docker ISO mounted;
// 4. reconfigure the virtual machine network and disk size;
func (d *Driver) Create() error {
if err := d.checkVsphereConfig(); err != nil {
return err
}
b2dutils := utils.NewB2dUtils("", "")
if err := b2dutils.CopyIsoToMachineDir(d.Boot2DockerURL, d.MachineName); err != nil {
return err
}
log.Infof("Generating SSH Keypair...")
if err := ssh.GenerateSSHKey(d.GetSSHKeyPath()); err != nil {
return err
}
vcConn := NewVcConn(d)
log.Infof("Uploading Boot2docker ISO ...")
if err := vcConn.DatastoreMkdir(d.MachineName); err != nil {
return err
}
if _, err := os.Stat(d.ISO); os.IsNotExist(err) {
log.Errorf("Unable to find boot2docker ISO at %s", d.ISO)
return errors.NewIncompleteVsphereConfigError(d.ISO)
}
if err := vcConn.DatastoreUpload(d.ISO, d.MachineName); err != nil {
return err
}
isoPath := fmt.Sprintf("%s/%s", d.MachineName, isoFilename)
if err := vcConn.VMCreate(isoPath); err != nil {
return err
}
log.Infof("Configuring the virtual machine %s... ", d.MachineName)
if err := vcConn.VMDiskCreate(); err != nil {
return err
}
if err := vcConn.VMAttachNetwork(); err != nil {
return err
}
if err := d.Start(); err != nil {
return err
}
// Generate a tar keys bundle
if err := d.generateKeyBundle(); err != nil {
return err
}
// Copy SSH keys bundle
if err := vcConn.GuestUpload(B2DUser, B2DPass, d.ResolveStorePath("userdata.tar"), "/home/docker/userdata.tar"); err != nil {
return err
}
// Expand tar file.
if err := vcConn.GuestStart(B2DUser, B2DPass, "/usr/bin/sudo", "/bin/mv /home/docker/userdata.tar /var/lib/boot2docker/userdata.tar && /usr/bin/sudo tar xf /var/lib/boot2docker/userdata.tar -C /home/docker/ > /var/log/userdata.log 2>&1 && /usr/bin/sudo chown -R docker:staff /home/docker"); err != nil {
return err
}
return nil
}
func (d *Driver) Start() error {
machineState, err := d.GetState()
if err != nil {
return err
}
switch machineState {
case state.Running:
log.Infof("VM %s has already been started", d.MachineName)
return nil
case state.Stopped:
// TODO add transactional or error handling in the following steps
vcConn := NewVcConn(d)
err := vcConn.VMPowerOn()
if err != nil {
return err
}
// this step waits for the vm to start and fetch its ip address;
// this guarantees that the opem-vmtools has started working...
_, err = vcConn.VMFetchIP()
if err != nil {
return err
}
d.IPAddress, err = d.GetIP()
return err
}
return errors.NewInvalidStateError(d.MachineName)
}
func (d *Driver) Stop() error {
vcConn := NewVcConn(d)
if err := vcConn.VMShutdown(); err != nil {
return err
}
d.IPAddress = ""
return nil
}
func (d *Driver) Remove() error {
machineState, err := d.GetState()
if err != nil {
return err
}
if machineState == state.Running {
if err = d.Kill(); err != nil {
return fmt.Errorf("can't stop VM: %s", err)
}
}
vcConn := NewVcConn(d)
if err = vcConn.VMDestroy(); err != nil {
return err
}
return nil
}
func (d *Driver) Restart() error {
if err := d.Stop(); err != nil {
return err
}
// Check for 120 seconds for the machine to stop
for i := 1; i <= 60; i++ {
machineState, err := d.GetState()
if err != nil {
return err
}
if machineState == state.Running {
log.Debugf("Not there yet %d/%d", i, 60)
time.Sleep(2 * time.Second)
continue
}
if machineState == state.Stopped {
break
}
}
machineState, err := d.GetState()
// If the VM is still running after 120 seconds just kill it.
if machineState == state.Running {
if err = d.Kill(); err != nil {
return fmt.Errorf("can't stop VM: %s", err)
}
}
return d.Start()
}
func (d *Driver) Kill() error {
vcConn := NewVcConn(d)
if err := vcConn.VMPowerOff(); err != nil {
return err
}
d.IPAddress = ""
return nil
}
func (d *Driver) Upgrade() error {
return fmt.Errorf("upgrade is not supported for vsphere driver at this moment")
}
func (d *Driver) publicSSHKeyPath() string {
return d.GetSSHKeyPath() + ".pub"
}
func (d *Driver) checkVsphereConfig() error {
if d.IP == "" {
return errors.NewIncompleteVsphereConfigError("vSphere IP")
}
if d.Username == "" {
return errors.NewIncompleteVsphereConfigError("vSphere username")
}
if d.Password == "" {
return errors.NewIncompleteVsphereConfigError("vSphere password")
}
if d.Network == "" {
return errors.NewIncompleteVsphereConfigError("vSphere network")
}
if d.Datastore == "" {
return errors.NewIncompleteVsphereConfigError("vSphere datastore")
}
if d.Datacenter == "" {
return errors.NewIncompleteVsphereConfigError("vSphere datacenter")
}
return nil
}
// Make a boot2docker userdata.tar key bundle
func (d *Driver) generateKeyBundle() error {
log.Debugf("Creating Tar key bundle...")
magicString := "boot2docker, this is vmware speaking"
tf, err := os.Create(d.ResolveStorePath("userdata.tar"))
if err != nil {
return err
}
defer tf.Close()
var fileWriter = tf
tw := tar.NewWriter(fileWriter)
defer tw.Close()
// magicString first so we can figure out who originally wrote the tar.
file := &tar.Header{Name: magicString, Size: int64(len(magicString))}
if err := tw.WriteHeader(file); err != nil {
return err
}
if _, err := tw.Write([]byte(magicString)); err != nil {
return err
}
// .ssh/key.pub => authorized_keys
file = &tar.Header{Name: ".ssh", Typeflag: tar.TypeDir, Mode: 0700}
if err := tw.WriteHeader(file); err != nil {
return err
}
pubKey, err := ioutil.ReadFile(d.publicSSHKeyPath())
if err != nil {
return err
}
file = &tar.Header{Name: ".ssh/authorized_keys", Size: int64(len(pubKey)), Mode: 0644}
if err := tw.WriteHeader(file); err != nil {
return err
}
if _, err := tw.Write([]byte(pubKey)); err != nil {
return err
}
file = &tar.Header{Name: ".ssh/authorized_keys2", Size: int64(len(pubKey)), Mode: 0644}
if err := tw.WriteHeader(file); err != nil {
return err
}
if _, err := tw.Write([]byte(pubKey)); err != nil {
return err
}
if err := tw.Close(); err != nil {
return err
}
return nil
}
func (d *Driver) UpgradeISO() error {
vcConn := NewVcConn(d)
if _, err := os.Stat(d.ISO); os.IsNotExist(err) {
log.Errorf("Unable to find boot2docker ISO at %s", d.ISO)
return errors.NewIncompleteVsphereConfigError(d.ISO)
}
if err := vcConn.DatastoreUpload(d.ISO, d.MachineName); err != nil {
return err
}
return nil
}