func (d *Driver) CreateVolume(id string, opts map[string]string) error {
d.mutex.Lock()
defer d.mutex.Unlock()
volumeName := opts[convoydriver.OPT_VOLUME_NAME]
if volumeName == "" {
volumeName = "volume-" + id[:8]
}
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return fmt.Errorf("volume %v already exists", id)
}
gVolume := d.gVolumes[d.DefaultVolumePool]
volumePath := filepath.Join(gVolume.MountPoint, volumeName)
if util.VolumeMountPointDirectoryExists(gVolume, volumeName) {
log.Debugf("Found existing volume named %v, reuse it", volumeName)
} else if err := util.VolumeMountPointDirectoryCreate(gVolume, volumeName); err != nil {
return err
}
volume.Name = volumeName
volume.Path = volumePath
volume.VolumePool = gVolume.UUID
return util.ObjectSave(volume)
}
func (d *Driver) CreateVolume(id string, opts map[string]string) error {
d.mutex.Lock()
defer d.mutex.Unlock()
backupURL := opts[convoydriver.OPT_BACKUP_URL]
if backupURL != "" {
objVolume, err := objectstore.LoadVolume(backupURL)
if err != nil {
return err
}
if objVolume.Driver != d.Name() {
return fmt.Errorf("Cannot restore backup of %v to %v", objVolume.Driver, d.Name())
}
}
volumeName := opts[convoydriver.OPT_VOLUME_NAME]
if volumeName == "" {
volumeName = "volume-" + id[:8]
}
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return fmt.Errorf("volume %v already exists", id)
}
volume.PrepareForVM, err = strconv.ParseBool(opts[convoydriver.OPT_PREPARE_FOR_VM])
if err != nil {
return err
}
if volume.PrepareForVM {
volume.Size, err = d.getSize(opts, d.DefaultVolumeSize)
if err != nil {
return err
}
}
volumePath := filepath.Join(d.Path, volumeName)
if err := util.MkdirIfNotExists(volumePath); err != nil {
return err
}
volume.Path = volumePath
volume.Snapshots = make(map[string]Snapshot)
if backupURL != "" {
file, err := objectstore.RestoreSingleFileBackup(backupURL, volumePath)
if err != nil {
return err
}
// file would be removed after this because it's under volumePath
if err := util.DecompressDir(file, volumePath); err != nil {
return err
}
}
return util.ObjectSave(volume)
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
path := config[VFS_PATH]
if path == "" {
return nil, fmt.Errorf("VFS driver base path unspecified")
}
if err := util.MkdirIfNotExists(path); err != nil {
return nil, err
}
dev = &Device{
Root: root,
Path: path,
}
if _, exists := config[VFS_DEFAULT_VOLUME_SIZE]; !exists {
config[VFS_DEFAULT_VOLUME_SIZE] = DEFAULT_VOLUME_SIZE
}
volumeSize, err := util.ParseSize(config[VFS_DEFAULT_VOLUME_SIZE])
if err != nil || volumeSize == 0 {
return nil, fmt.Errorf("Illegal default volume size specified")
}
dev.DefaultVolumeSize = volumeSize
}
// For upgrade case
if dev.DefaultVolumeSize == 0 {
dev.DefaultVolumeSize, err = util.ParseSize(DEFAULT_VOLUME_SIZE)
if err != nil || dev.DefaultVolumeSize == 0 {
return nil, fmt.Errorf("Illegal default volume size specified")
}
}
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
d := &Driver{
mutex: &sync.RWMutex{},
Device: *dev,
}
return d, nil
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
ebsService, err := NewEBSService()
if err != nil {
return nil, err
}
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
if config[EBS_DEFAULT_VOLUME_SIZE] == "" {
config[EBS_DEFAULT_VOLUME_SIZE] = DEFAULT_VOLUME_SIZE
}
size, err := util.ParseSize(config[EBS_DEFAULT_VOLUME_SIZE])
if err != nil {
return nil, err
}
if config[EBS_DEFAULT_VOLUME_TYPE] == "" {
config[EBS_DEFAULT_VOLUME_TYPE] = DEFAULT_VOLUME_TYPE
}
volumeType := config[EBS_DEFAULT_VOLUME_TYPE]
if err := checkVolumeType(volumeType); err != nil {
return nil, err
}
dev = &Device{
Root: root,
DefaultVolumeSize: size,
DefaultVolumeType: volumeType,
}
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
}
d := &Driver{
mutex: &sync.RWMutex{},
ebsService: ebsService,
Device: *dev,
}
if err := d.remountVolumes(); err != nil {
return nil, err
}
return d, nil
}
func (d *Driver) CreateVolume(id string, opts map[string]string) error {
d.mutex.Lock()
defer d.mutex.Unlock()
volumeName := opts[convoydriver.OPT_VOLUME_NAME]
if volumeName == "" {
volumeName = "volume-" + id[:8]
}
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return fmt.Errorf("volume %v already exists", id)
}
volume.PrepareForVM, err = strconv.ParseBool(opts[convoydriver.OPT_PREPARE_FOR_VM])
if err != nil {
return err
}
if volume.PrepareForVM {
volume.Size, err = d.getSize(opts, d.DefaultVolumeSize)
if err != nil {
return err
}
}
gVolume := d.gVolumes[d.DefaultVolumePool]
volumePath := filepath.Join(gVolume.MountPoint, volumeName)
if util.VolumeMountPointFileExists(gVolume, volumeName, util.FILE_TYPE_DIRECTORY) {
log.Debugf("Found existing volume named %v, reuse it", volumeName)
} else if err := util.VolumeMountPointDirectoryCreate(gVolume, volumeName); err != nil {
return err
}
volume.Name = volumeName
volume.Path = volumePath
volume.VolumePool = gVolume.UUID
return util.ObjectSave(volume)
}
func (d *Driver) CreateVolume(req Request) error {
d.mutex.Lock()
defer d.mutex.Unlock()
id := req.Name
opts := req.Options
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return fmt.Errorf("volume %v already exists", id)
}
volume.PrepareForVM, err = strconv.ParseBool(opts[OPT_PREPARE_FOR_VM])
if err != nil {
return err
}
if volume.PrepareForVM {
volume.Size, err = d.getSize(opts, d.DefaultVolumeSize)
if err != nil {
return err
}
}
gVolume := d.gVolumes[d.DefaultVolumePool]
volumePath := filepath.Join(gVolume.MountPoint, id)
if util.VolumeMountPointFileExists(gVolume, id, util.FILE_TYPE_DIRECTORY) {
log.Debugf("Found existing volume named %v, reuse it", id)
} else if err := util.VolumeMountPointDirectoryCreate(gVolume, id); err != nil {
return err
}
volume.Name = id
volume.Path = volumePath
volume.VolumePool = gVolume.UUID
volume.CreatedTime = util.Now()
return util.ObjectSave(volume)
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
path := config[VFS_PATH]
if path == "" {
return nil, fmt.Errorf("VFS driver base path unspecified")
}
if err := util.MkdirIfNotExists(path); err != nil {
return nil, err
}
dev = &Device{
Root: root,
Path: path,
}
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
}
d := &Driver{
mutex: &sync.RWMutex{},
Device: *dev,
}
return d, nil
}
func Init(root string, config map[string]string) (ConvoyDriver, error) {
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
serverList := config[GLUSTERFS_SERVERS]
if serverList == "" {
return nil, fmt.Errorf("Missing required parameter: %v", GLUSTERFS_SERVERS)
}
servers := strings.Split(serverList, ",")
for _, server := range servers {
if !util.ValidNetworkAddr(server) {
return nil, fmt.Errorf("Invalid or unsolvable address: %v", server)
}
}
defaultVolumePool := config[GLUSTERFS_DEFAULT_VOLUME_POOL]
if defaultVolumePool == "" {
return nil, fmt.Errorf("Missing required parameter: %v", GLUSTERFS_DEFAULT_VOLUME_POOL)
}
if _, exists := config[GLUSTERFS_DEFAULT_VOLUME_SIZE]; !exists {
config[GLUSTERFS_DEFAULT_VOLUME_SIZE] = DEFAULT_VOLUME_SIZE
}
volumeSize, err := util.ParseSize(config[GLUSTERFS_DEFAULT_VOLUME_SIZE])
if err != nil || volumeSize == 0 {
return nil, fmt.Errorf("Illegal default volume size specified")
}
dev.DefaultVolumeSize = volumeSize
dev = &Device{
Root: root,
Servers: servers,
DefaultVolumePool: defaultVolumePool,
}
}
// For upgrade case
if dev.DefaultVolumeSize == 0 {
dev.DefaultVolumeSize, err = util.ParseSize(DEFAULT_VOLUME_SIZE)
if err != nil || dev.DefaultVolumeSize == 0 {
return nil, fmt.Errorf("Illegal default volume size specified")
}
}
d := &Driver{
mutex: &sync.RWMutex{},
gVolumes: map[string]*GlusterFSVolume{},
Device: *dev,
}
gVolume := &GlusterFSVolume{
UUID: dev.DefaultVolumePool,
Servers: dev.Servers,
configPath: d.Root,
}
// We would always mount the default volume pool
// TODO: Also need to mount any existing volume's pool
if _, err := util.VolumeMount(gVolume, "", true); err != nil {
return nil, err
}
d.gVolumes[d.DefaultVolumePool] = gVolume
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
return d, nil
}
func (d *Driver) CreateVolume(id string, opts map[string]string) error {
var (
size int64
err error
)
backupURL := opts[convoydriver.OPT_BACKUP_URL]
if backupURL != "" {
objVolume, err := objectstore.LoadVolume(backupURL)
if err != nil {
return err
}
if objVolume.Driver != d.Name() {
return fmt.Errorf("Cannot restore backup of %v to %v", objVolume.Driver, d.Name())
}
size, err = d.getSize(opts, objVolume.Size)
if err != nil {
return err
}
if size != objVolume.Size {
return fmt.Errorf("Volume size must match with backup's size")
}
} else {
size, err = d.getSize(opts, d.DefaultVolumeSize)
if err != nil {
return err
}
}
if size%(d.ThinpoolBlockSize*SECTOR_SIZE) != 0 {
return fmt.Errorf("Size must be multiple of block size")
}
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return generateError(logrus.Fields{
LOG_FIELD_VOLUME: id,
}, "Already has volume with specific uuid")
}
devID, err := d.allocateDevID()
if err != nil {
return err
}
log.WithFields(logrus.Fields{
LOG_FIELD_REASON: LOG_REASON_START,
LOG_FIELD_EVENT: LOG_EVENT_CREATE,
LOG_FIELD_OBJECT: LOG_OBJECT_VOLUME,
LOG_FIELD_VOLUME: id,
DM_LOG_FIELD_VOLUME_DEVID: devID,
}).Debugf("Creating volume")
err = devicemapper.CreateDevice(d.ThinpoolDevice, devID)
if err != nil {
return err
}
log.WithFields(logrus.Fields{
LOG_FIELD_REASON: LOG_REASON_START,
LOG_FIELD_EVENT: LOG_EVENT_ACTIVATE,
LOG_FIELD_OBJECT: LOG_OBJECT_VOLUME,
LOG_FIELD_VOLUME: id,
DM_LOG_FIELD_VOLUME_DEVID: devID,
}).Debugf("Activating device for volume")
err = devicemapper.ActivateDevice(d.ThinpoolDevice, id, devID, uint64(size))
if err != nil {
log.WithFields(logrus.Fields{
LOG_FIELD_REASON: LOG_REASON_ROLLBACK,
LOG_FIELD_EVENT: LOG_EVENT_REMOVE,
LOG_FIELD_OBJECT: LOG_OBJECT_VOLUME,
LOG_FIELD_VOLUME: id,
DM_LOG_FIELD_VOLUME_DEVID: devID,
}).Debugf("Removing device for volume due to fail to activate")
if err := devicemapper.DeleteDevice(d.ThinpoolDevice, devID); err != nil {
log.WithFields(logrus.Fields{
LOG_FIELD_REASON: LOG_REASON_FAILURE,
LOG_FIELD_EVENT: LOG_EVENT_REMOVE,
LOG_FIELD_OBJECT: LOG_OBJECT_VOLUME,
LOG_FIELD_VOLUME: id,
DM_LOG_FIELD_VOLUME_DEVID: devID,
}).Debugf("Failed to remove device")
}
return err
}
volume.DevID = devID
volume.Size = size
volume.Snapshots = make(map[string]Snapshot)
if err := util.ObjectSave(volume); err != nil {
return err
}
dev, err := d.GetVolumeDevice(id)
if err != nil {
return err
}
if backupURL == "" {
// format the device
if _, err := util.Execute("mkfs", []string{"-t", "ext4", dev}); err != nil {
return err
}
} else {
if err := objectstore.RestoreDeltaBlockBackup(backupURL, dev); err != nil {
return err
}
}
return nil
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
devicemapper.LogInitVerbose(1)
devicemapper.LogInit(&DMLogger{})
if err := checkEnvironment(); err != nil {
return nil, err
}
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
d := &Driver{
Mutex: &sync.Mutex{},
Device: *dev,
}
if err := d.activatePool(); err != nil {
return nil, err
}
if err := d.remountVolumes(); err != nil {
return nil, err
}
return d, nil
}
dev, err = verifyConfig(config)
if err != nil {
return nil, err
}
dev.Root = root
dataDev, err := os.Open(dev.DataDevice)
if err != nil {
return nil, err
}
defer dataDev.Close()
metadataDev, err := os.Open(dev.MetadataDevice)
if err != nil {
return nil, err
}
defer metadataDev.Close()
thinpSize, err := devicemapper.GetBlockDeviceSize(dataDev)
if err != nil {
return nil, err
}
dev.ThinpoolSize = int64(thinpSize)
dev.LastDevID = 0
if err = createPool(filepath.Base(dev.ThinpoolDevice), dataDev, metadataDev, uint32(dev.ThinpoolBlockSize)); err != nil {
return nil, err
}
if err = util.ObjectSave(dev); err != nil {
return nil, err
}
d := &Driver{
Mutex: &sync.Mutex{},
Device: *dev,
}
return d, nil
}
func (d *Driver) CreateVolume(id string, opts map[string]string) error {
var (
err error
volumeSize int64
format bool
snapshot *Snapshot
)
d.mutex.Lock()
defer d.mutex.Unlock()
volume := d.blankVolume(id)
exists, err := util.ObjectExists(volume)
if err != nil {
return err
}
if exists {
return fmt.Errorf("Volume %v already exists", id)
}
//EBS volume ID
volumeID := opts[convoydriver.OPT_VOLUME_ID]
backupURL := opts[convoydriver.OPT_BACKUP_URL]
if backupURL != "" && volumeID != "" {
return fmt.Errorf("Cannot specify both backup and EBS volume ID")
}
newTags := map[string]string{
"Name": opts[convoydriver.OPT_VOLUME_NAME],
"ConvoyVolumeUUID": id,
}
if volumeID != "" {
ebsVolume, err := d.ebsService.GetVolume(volumeID)
if err != nil {
return err
}
volumeSize = *ebsVolume.Size * GB
log.Debugf("Found EBS volume %v for volume %v, update tags", volumeID, id)
if err := d.ebsService.AddTags(volumeID, newTags); err != nil {
log.Debugf("Failed to update tags for volume %v, but continue", volumeID)
}
} else if backupURL != "" {
region, ebsSnapshotID, err := decodeURL(backupURL)
if err != nil {
return err
}
if region != d.ebsService.Region {
// We don't want to automatically copy snapshot here
// because it's way too time consuming.
return fmt.Errorf("Snapshot %v is at %v rather than current region %v. Copy snapshot is needed",
ebsSnapshotID, region, d.ebsService.Region)
}
if err := d.ebsService.WaitForSnapshotComplete(ebsSnapshotID); err != nil {
return err
}
log.Debugf("Snapshot %v is ready", ebsSnapshotID)
ebsSnapshot, err := d.ebsService.GetSnapshot(ebsSnapshotID)
if err != nil {
return err
}
snapshot = &Snapshot{
UUID: uuid.New(),
VolumeUUID: id,
EBSID: ebsSnapshotID,
}
snapshotVolumeSize := *ebsSnapshot.VolumeSize * GB
volumeSize, err = d.getSize(opts, snapshotVolumeSize)
if err != nil {
return err
}
if volumeSize < snapshotVolumeSize {
return fmt.Errorf("Volume size cannot be less than snapshot size %v", snapshotVolumeSize)
}
volumeType, iops, err := d.getTypeAndIOPS(opts)
if err != nil {
return err
}
r := &CreateEBSVolumeRequest{
Size: volumeSize,
SnapshotID: ebsSnapshotID,
VolumeType: volumeType,
IOPS: iops,
Tags: newTags,
}
volumeID, err = d.ebsService.CreateVolume(r)
if err != nil {
return err
}
log.Debugf("Created volume %v from EBS snapshot %v", id, ebsSnapshotID)
} else {
// Create a new EBS volume
volumeSize, err = d.getSize(opts, d.DefaultVolumeSize)
if err != nil {
return err
}
volumeType, iops, err := d.getTypeAndIOPS(opts)
if err != nil {
return err
}
r := &CreateEBSVolumeRequest{
Size: volumeSize,
VolumeType: volumeType,
IOPS: iops,
Tags: newTags,
}
volumeID, err = d.ebsService.CreateVolume(r)
if err != nil {
return err
}
log.Debugf("Created volume %v from EBS volume %v", id, volumeID)
format = true
}
dev, err := d.ebsService.AttachVolume(volumeID, volumeSize)
if err != nil {
return err
}
log.Debugf("Attached EBS volume %v to %v", volumeID, dev)
volume.EBSID = volumeID
volume.Device = dev
volume.Snapshots = make(map[string]Snapshot)
if snapshot != nil {
volume.Snapshots[snapshot.UUID] = *snapshot
}
// We don't format existing or snapshot restored volume
if format {
if _, err := util.Execute("mkfs", []string{"-t", "ext4", dev}); err != nil {
return err
}
}
return util.ObjectSave(volume)
}
// Start the daemon
func Start(sockFile string, c *cli.Context) error {
var err error
if err = daemonEnvironmentSetup(c); err != nil {
return err
}
defer environmentCleanup()
root := c.String("root")
s := &daemon{
ConvoyDrivers: make(map[string]convoydriver.ConvoyDriver),
}
config := &daemonConfig{
Root: root,
}
exists, err := util.ObjectExists(config)
if err != nil {
return err
}
if exists {
log.Debug("Found existing config. Ignoring command line opts, loading config from ", root)
if err := util.ObjectLoad(config); err != nil {
return err
}
} else {
fd := c.String("mnt-ns")
if fd != "" {
if _, err := os.Stat(fd); err != nil {
return fmt.Errorf("Cannot find mount namespace fd %v", fd)
}
config.MountNamespaceFD = fd
}
driverList := c.StringSlice("drivers")
if len(driverList) == 0 {
return fmt.Errorf("Missing or invalid parameters")
}
log.Debug("Creating config at ", root)
config.DriverList = driverList
config.DefaultDriver = driverList[0]
}
s.daemonConfig = *config
if err := util.InitMountNamespace(s.MountNamespaceFD); err != nil {
return err
}
// driverOpts would be ignored by Convoy Drivers if config already exists
driverOpts := util.SliceToMap(c.StringSlice("driver-opts"))
if err := s.initDrivers(driverOpts); err != nil {
return err
}
if err := s.finializeInitialization(); err != nil {
return err
}
if err := util.ObjectSave(config); err != nil {
return err
}
s.Router = createRouter(s)
if err := util.MkdirIfNotExists(filepath.Dir(sockFile)); err != nil {
return err
}
// This should be safe because lock file prevent starting daemon twice
if _, err := os.Stat(sockFile); err == nil {
log.Warnf("Remove previous sockfile at %v", sockFile)
if err := os.Remove(sockFile); err != nil {
return err
}
}
l, err := net.Listen("unix", sockFile)
if err != nil {
fmt.Println("listen err", err)
return err
}
defer l.Close()
sigs := make(chan os.Signal, 1)
done := make(chan bool, 1)
signal.Notify(sigs, os.Interrupt, os.Kill, syscall.SIGTERM)
go func() {
sig := <-sigs
fmt.Printf("Caught signal %s: shutting down.\n", sig)
done <- true
}()
go func() {
err = http.Serve(l, s.Router)
if err != nil {
log.Error("http server error", err.Error())
}
done <- true
}()
<-done
return nil
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
dev.RancherURL = override(dev.RancherURL, config[LH_RANCHER_URL])
dev.RancherAccessKey = override(dev.RancherAccessKey, config[LH_RANCHER_ACCESS_KEY])
dev.RancherSecretKey = override(dev.RancherSecretKey, config[LH_RANCHER_SECRET_KEY])
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
url := config[LH_RANCHER_URL]
accessKey := config[LH_RANCHER_ACCESS_KEY]
secretKey := config[LH_RANCHER_SECRET_KEY]
if url == "" || accessKey == "" || secretKey == "" {
return nil, fmt.Errorf("Missing required parameter. lh.rancherurl or lh.rancheraccesskey or lh.ranchersecretkey")
}
if _, exists := config[LH_DEFAULT_VOLUME_SIZE]; !exists {
config[LH_DEFAULT_VOLUME_SIZE] = DEFAULT_VOLUME_SIZE
}
volumeSize, err := util.ParseSize(config[LH_DEFAULT_VOLUME_SIZE])
if err != nil || volumeSize == 0 {
return nil, fmt.Errorf("Illegal default volume size specified")
}
dev = &Device{
Root: root,
RancherURL: url,
RancherAccessKey: accessKey,
RancherSecretKey: secretKey,
DefaultVolumeSize: volumeSize,
}
}
containerName := config[LH_CONTAINER_NAME]
if containerName == "" {
handler := metadata.NewClient(RANCHER_METADATA_URL)
container, err := handler.GetSelfContainer()
if err != nil {
return nil, err
}
containerName = container.UUID
}
log.Debugf("Try to connect to Rancher server at %s [%s:%s]", dev.RancherURL, dev.RancherAccessKey, dev.RancherSecretKey)
client, err := rancherClient.NewRancherClient(&rancherClient.ClientOpts{
Url: dev.RancherURL,
AccessKey: dev.RancherAccessKey,
SecretKey: dev.RancherSecretKey,
})
if err != nil {
return nil, fmt.Errorf("Failed to establish connection to Rancher server")
}
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
d := &Driver{
client: client,
containerName: containerName,
Device: *dev,
}
return d, nil
}
// Start the daemon
func Start(sockFile string, c *cli.Context) error {
var err error
if err = daemonEnvironmentSetup(c); err != nil {
return err
}
defer environmentCleanup()
root := c.String("root")
s := &daemon{
ConvoyDrivers: make(map[string]convoydriver.ConvoyDriver),
}
config := &daemonConfig{
Root: root,
}
exists, err := util.ObjectExists(config)
if err != nil {
return err
}
driverOpts := util.SliceToMap(c.StringSlice("driver-opts"))
if exists {
log.Debug("Found existing config. Ignoring command line opts, loading config from ", root)
if err := util.ObjectLoad(config); err != nil {
return err
}
} else {
driverList := c.StringSlice("drivers")
if len(driverList) == 0 || driverOpts == nil {
return fmt.Errorf("Missing or invalid parameters")
}
log.Debug("Creating config at ", root)
config.DriverList = driverList
config.DefaultDriver = driverList[0]
}
s.daemonConfig = *config
if err := s.initDrivers(driverOpts); err != nil {
return err
}
if err := s.finializeInitialization(); err != nil {
return err
}
if err := util.ObjectSave(config); err != nil {
return err
}
s.Router = createRouter(s)
if err := util.MkdirIfNotExists(filepath.Dir(sockFile)); err != nil {
return err
}
l, err := net.Listen("unix", sockFile)
if err != nil {
fmt.Println("listen err", err)
return err
}
defer l.Close()
sigs := make(chan os.Signal, 1)
done := make(chan bool, 1)
signal.Notify(sigs, os.Interrupt, os.Kill, syscall.SIGTERM)
go func() {
sig := <-sigs
fmt.Printf("Caught signal %s: shutting down.\n", sig)
done <- true
}()
go func() {
err = http.Serve(l, s.Router)
if err != nil {
log.Error("http server error", err.Error())
}
done <- true
}()
<-done
return nil
}
func Init(root string, config map[string]string) (convoydriver.ConvoyDriver, error) {
dev := &Device{
Root: root,
}
exists, err := util.ObjectExists(dev)
if err != nil {
return nil, err
}
if exists {
if err := util.ObjectLoad(dev); err != nil {
return nil, err
}
} else {
if err := util.MkdirIfNotExists(root); err != nil {
return nil, err
}
stack := config[GLUSTERFS_RANCHER_STACK]
if stack == "" {
return nil, fmt.Errorf("Missing required parameter: %v", GLUSTERFS_RANCHER_STACK)
}
service := config[GLUSTERFS_RANCHER_GLUSTER_SERVICE]
if service == "" {
return nil, fmt.Errorf("Missing required parameter: %v", GLUSTERFS_RANCHER_GLUSTER_SERVICE)
}
defaultVolumePool := config[GLUSTERFS_DEFAULT_VOLUME_POOL]
if defaultVolumePool == "" {
return nil, fmt.Errorf("Missing required parameter: %v", GLUSTERFS_DEFAULT_VOLUME_POOL)
}
dev = &Device{
Root: root,
RancherStack: stack,
RancherService: service,
DefaultVolumePool: defaultVolumePool,
}
}
serverIPs, err := rancher.GetIPsForServiceInStack(dev.RancherService, dev.RancherStack)
if err != nil {
return nil, err
}
d := &Driver{
mutex: &sync.RWMutex{},
gVolumes: map[string]*GlusterFSVolume{},
Device: *dev,
}
gVolume := &GlusterFSVolume{
UUID: dev.DefaultVolumePool,
ServerIPs: serverIPs,
configPath: d.Root,
}
// We would always mount the default volume pool
// TODO: Also need to mount any existing volume's pool
if _, err := util.VolumeMount(gVolume, "", true); err != nil {
return nil, err
}
d.gVolumes[d.DefaultVolumePool] = gVolume
if err := util.ObjectSave(dev); err != nil {
return nil, err
}
return d, nil
}