func attemptGetHostState(host Host, stateQueryChan chan<- HostListItem) {
currentState, err := host.Driver.GetState()
if err != nil {
log.Errorf("error getting state for host %s: %s", host.Name, err)
}
url, err := host.GetURL()
if err != nil {
if err == drivers.ErrHostIsNotRunning {
url = ""
} else {
log.Errorf("error getting URL for host %s: %s", host.Name, err)
}
}
isActive, err := host.IsActive()
if err != nil {
log.Errorf("error determining if host is active for host %s: %s",
host.Name, err)
}
stateQueryChan <- HostListItem{
Name: host.Name,
Active: isActive,
DriverName: host.Driver.DriverName(),
State: currentState,
URL: url,
SwarmOptions: *host.HostOptions.SwarmOptions,
}
}
// IsActive provides a single method for determining if a host is active based
// on both the url and if the host is stopped.
func (h *Host) IsActive() (bool, error) {
currentState, err := h.Driver.GetState()
if err != nil {
log.Errorf("error getting state for host %s: %s", h.Name, err)
return false, err
}
url, err := h.GetURL()
if err != nil {
if err == drivers.ErrHostIsNotRunning {
url = ""
} else {
log.Errorf("error getting URL for host %s: %s", h.Name, err)
return false, err
}
}
dockerHost := os.Getenv("DOCKER_HOST")
notStopped := currentState != state.Stopped
correctURL := url == dockerHost
isActive := notStopped && correctURL
return isActive, nil
}
func RunSSHCommandFromDriver(d Driver, command string) (string, error) {
client, err := GetSSHClientFromDriver(d)
if err != nil {
return "", err
}
log.Debugf("About to run SSH command:\n%s", command)
output, err := client.Output(command)
log.Debugf("SSH cmd err, output: %v: %s", err, output)
if err != nil && !isErr255Exit(err) {
log.Error("SSH cmd error!")
log.Errorf("command: %s", command)
log.Errorf("err : %v", err)
log.Fatalf("output : %s", output)
}
return output, err
}
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
}
func (s Filestore) List() ([]*host.Host, error) {
dir, err := ioutil.ReadDir(s.getMachinesDir())
if err != nil && !os.IsNotExist(err) {
return nil, err
}
hosts := []*host.Host{}
for _, file := range dir {
if file.IsDir() && !strings.HasPrefix(file.Name(), ".") {
host, err := s.Get(file.Name())
if err != nil {
log.Errorf("error loading host %q: %s", file.Name(), err)
continue
}
hosts = append(hosts, host)
}
}
return hosts, 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 := mcnutils.NewB2dUtils("", "", d.GlobalArtifactPath())
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.LocalArtifactPath("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
}