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filestore.go
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filestore.go
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package libmachine
import (
"encoding/json"
"errors"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/docker/machine/log"
"github.com/docker/machine/utils"
)
type Filestore struct {
path string
caCertPath string
privateKeyPath string
}
func NewFilestore(rootPath string, caCert string, privateKey string) *Filestore {
return &Filestore{
path: rootPath,
caCertPath: caCert,
privateKeyPath: privateKey,
}
}
func (s Filestore) loadHost(name string) (*Host, error) {
hostPath := filepath.Join(utils.GetMachineDir(), name)
if _, err := os.Stat(hostPath); os.IsNotExist(err) {
return nil, ErrHostDoesNotExist{
Name: name,
}
}
host := &Host{
Name: name,
StorePath: hostPath,
}
if err := host.LoadConfig(); err != nil {
return nil, err
}
return host, nil
}
func (s Filestore) GetPath() string {
return s.path
}
func (s Filestore) GetCACertificatePath() (string, error) {
return s.caCertPath, nil
}
func (s Filestore) GetPrivateKeyPath() (string, error) {
return s.privateKeyPath, nil
}
func (s Filestore) Save(host *Host) error {
data, err := json.Marshal(host)
if err != nil {
return err
}
hostPath := filepath.Join(utils.GetMachineDir(), host.Name)
if err := os.MkdirAll(hostPath, 0700); err != nil {
return err
}
if err := ioutil.WriteFile(filepath.Join(hostPath, "config.json"), data, 0600); err != nil {
return err
}
return nil
}
func (s Filestore) Remove(name string, force bool) error {
hostPath := filepath.Join(utils.GetMachineDir(), name)
return os.RemoveAll(hostPath)
}
func (s Filestore) List() ([]*Host, error) {
dir, err := ioutil.ReadDir(utils.GetMachineDir())
if err != nil && !os.IsNotExist(err) {
return nil, err
}
hosts := []*Host{}
for _, file := range dir {
// don't load hidden dirs; used for configs
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
}
func (s Filestore) Exists(name string) (bool, error) {
_, err := os.Stat(filepath.Join(utils.GetMachineDir(), name))
if os.IsNotExist(err) {
return false, nil
} else if err == nil {
return true, nil
}
return false, err
}
func (s Filestore) Get(name string) (*Host, error) {
return s.loadHost(name)
}
func (s Filestore) GetActive() (*Host, error) {
hosts, err := s.List()
if err != nil {
return nil, err
}
hostListItems := GetHostListItems(hosts)
for _, item := range hostListItems {
if item.Active {
host, err := s.Get(item.Name)
if err != nil {
return nil, err
}
return host, nil
}
}
return nil, errors.New("Active host not found")
}