func configureVolumes(config *Config) error {
volumesDriver, err := local.New(config.Root)
if err != nil {
return err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return nil
}
func configureVolumes(config *Config) (*volumeStore, error) {
volumesDriver, err := local.New(config.Root)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return newVolumeStore(volumesDriver.List()), nil
}
func configureVolumes(config *Config, rootUID, rootGID int) (*store.VolumeStore, error) {
volumesDriver, err := local.New(config.Root, rootUID, rootGID)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return store.New(config.Root)
}
func (daemon *Daemon) configureVolumes(rootUID, rootGID int) (*store.VolumeStore, error) {
volumesDriver, err := local.New(daemon.configStore.Root, rootUID, rootGID)
if err != nil {
return nil, err
}
if !volumedrivers.Register(volumesDriver, volumesDriver.Name()) {
return nil, fmt.Errorf("local volume driver could not be registered")
}
return store.New(daemon.configStore.Root)
}
func configureVolumes(config *Config) (*store.VolumeStore, error) {
volumesDriver, err := local.New(config.Root)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
s := store.New()
s.AddAll(volumesDriver.List())
return s, nil
}
func initDaemonForVolumesTest(tmp string) (*Daemon, error) {
daemon := &Daemon{
repository: tmp,
root: tmp,
}
volumesDriver, err := local.New(tmp)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return daemon, nil
}
func initDaemonWithVolumeStore(tmp string) (*Daemon, error) {
daemon := &Daemon{
repository: tmp,
root: tmp,
volumes: store.New(),
}
volumesDriver, err := local.New(tmp, 0, 0)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return daemon, nil
}
func TestGetVolumeDefaultDriver(t *testing.T) {
tmp, err := ioutil.TempDir("", "volume-test-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
l, err := local.New(tmp)
if err != nil {
t.Fatal(err)
}
volumedrivers.Register(l, volume.DefaultDriverName)
d, err := getVolumeDriver("missing")
if err != nil {
t.Fatal(err)
}
if d.Name() != volume.DefaultDriverName {
t.Fatalf("Expected local driver, was %s\n", d.Name)
}
}
func NewDaemon(config *Config, registryService *registry.Service) (daemon *Daemon, err error) {
// Check for mutually incompatible config options
if config.Bridge.Iface != "" && config.Bridge.IP != "" {
return nil, fmt.Errorf("You specified -b & --bip, mutually exclusive options. Please specify only one.")
}
setDefaultMtu(config)
if !config.Bridge.EnableIPTables && !config.Bridge.InterContainerCommunication {
return nil, fmt.Errorf("You specified --iptables=false with --icc=false. ICC uses iptables to function. Please set --icc or --iptables to true.")
}
if !config.Bridge.EnableIPTables && config.Bridge.EnableIPMasq {
config.Bridge.EnableIPMasq = false
}
config.DisableNetwork = config.Bridge.Iface == disableNetworkBridge
// Check that the system is supported and we have sufficient privileges
if runtime.GOOS != "linux" {
return nil, fmt.Errorf("The Docker daemon is only supported on linux")
}
if os.Geteuid() != 0 {
return nil, fmt.Errorf("The Docker daemon needs to be run as root")
}
if err := checkKernel(); err != nil {
return nil, err
}
// set up SIGUSR1 handler to dump Go routine stacks
setupSigusr1Trap()
// set up the tmpDir to use a canonical path
tmp, err := tempDir(config.Root)
if err != nil {
return nil, fmt.Errorf("Unable to get the TempDir under %s: %s", config.Root, err)
}
realTmp, err := fileutils.ReadSymlinkedDirectory(tmp)
if err != nil {
return nil, fmt.Errorf("Unable to get the full path to the TempDir (%s): %s", tmp, err)
}
os.Setenv("TMPDIR", realTmp)
// get the canonical path to the Docker root directory
var realRoot string
if _, err := os.Stat(config.Root); err != nil && os.IsNotExist(err) {
realRoot = config.Root
} else {
realRoot, err = fileutils.ReadSymlinkedDirectory(config.Root)
if err != nil {
return nil, fmt.Errorf("Unable to get the full path to root (%s): %s", config.Root, err)
}
}
config.Root = realRoot
// Create the root directory if it doesn't exists
if err := os.MkdirAll(config.Root, 0700); err != nil && !os.IsExist(err) {
return nil, err
}
// Set the default driver
graphdriver.DefaultDriver = config.GraphDriver
// Load storage driver
driver, err := graphdriver.New(config.Root, config.GraphOptions)
if err != nil {
return nil, fmt.Errorf("error initializing graphdriver: %v", err)
}
logrus.Debugf("Using graph driver %s", driver)
d := &Daemon{}
d.driver = driver
defer func() {
if err != nil {
if err := d.Shutdown(); err != nil {
logrus.Error(err)
}
}
}()
// Verify logging driver type
if config.LogConfig.Type != "none" {
if _, err := logger.GetLogDriver(config.LogConfig.Type); err != nil {
return nil, fmt.Errorf("error finding the logging driver: %v", err)
}
}
logrus.Debugf("Using default logging driver %s", config.LogConfig.Type)
if config.EnableSelinuxSupport {
if selinuxEnabled() {
// As Docker on btrfs and SELinux are incompatible at present, error on both being enabled
if d.driver.String() == "btrfs" {
return nil, fmt.Errorf("SELinux is not supported with the BTRFS graph driver")
}
logrus.Debug("SELinux enabled successfully")
} else {
logrus.Warn("Docker could not enable SELinux on the host system")
}
} else {
selinuxSetDisabled()
}
daemonRepo := path.Join(config.Root, "containers")
if err := os.MkdirAll(daemonRepo, 0700); err != nil && !os.IsExist(err) {
return nil, err
}
// Migrate the container if it is aufs and aufs is enabled
if err := migrateIfAufs(d.driver, config.Root); err != nil {
return nil, err
}
logrus.Debug("Creating images graph")
g, err := graph.NewGraph(path.Join(config.Root, "graph"), d.driver)
if err != nil {
return nil, err
}
volumesDriver, err := local.New(config.Root)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
trustKey, err := api.LoadOrCreateTrustKey(config.TrustKeyPath)
if err != nil {
return nil, err
}
trustDir := path.Join(config.Root, "trust")
if err := os.MkdirAll(trustDir, 0700); err != nil && !os.IsExist(err) {
return nil, err
}
trustService, err := trust.NewTrustStore(trustDir)
if err != nil {
return nil, fmt.Errorf("could not create trust store: %s", err)
}
eventsService := events.New()
logrus.Debug("Creating repository list")
tagCfg := &graph.TagStoreConfig{
Graph: g,
Key: trustKey,
Registry: registryService,
Events: eventsService,
Trust: trustService,
}
repositories, err := graph.NewTagStore(path.Join(config.Root, "repositories-"+d.driver.String()), tagCfg)
if err != nil {
return nil, fmt.Errorf("Couldn't create Tag store: %s", err)
}
if !config.DisableNetwork {
d.netController, err = initNetworkController(config)
if err != nil {
return nil, fmt.Errorf("Error initializing network controller: %v", err)
}
}
graphdbPath := path.Join(config.Root, "linkgraph.db")
graph, err := graphdb.NewSqliteConn(graphdbPath)
if err != nil {
return nil, err
}
d.containerGraph = graph
localCopy := path.Join(config.Root, "init", fmt.Sprintf("dockerinit-%s", dockerversion.VERSION))
sysInitPath := utils.DockerInitPath(localCopy)
if sysInitPath == "" {
return nil, fmt.Errorf("Could not locate dockerinit: This usually means docker was built incorrectly. See https://docs.docker.com/contributing/devenvironment for official build instructions.")
}
if sysInitPath != localCopy {
// When we find a suitable dockerinit binary (even if it's our local binary), we copy it into config.Root at localCopy for future use (so that the original can go away without that being a problem, for example during a package upgrade).
if err := os.Mkdir(path.Dir(localCopy), 0700); err != nil && !os.IsExist(err) {
return nil, err
}
if _, err := fileutils.CopyFile(sysInitPath, localCopy); err != nil {
return nil, err
}
if err := os.Chmod(localCopy, 0700); err != nil {
return nil, err
}
sysInitPath = localCopy
}
sysInfo := sysinfo.New(false)
ed, err := execdrivers.NewDriver(config.ExecDriver, config.ExecOptions, config.ExecRoot, config.Root, sysInitPath, sysInfo)
if err != nil {
return nil, err
}
d.ID = trustKey.PublicKey().KeyID()
d.repository = daemonRepo
d.containers = &contStore{s: make(map[string]*Container)}
d.execCommands = newExecStore()
d.graph = g
d.repositories = repositories
d.idIndex = truncindex.NewTruncIndex([]string{})
d.sysInfo = sysInfo
d.config = config
d.sysInitPath = sysInitPath
d.execDriver = ed
d.statsCollector = newStatsCollector(1 * time.Second)
d.defaultLogConfig = config.LogConfig
d.RegistryService = registryService
d.EventsService = eventsService
d.root = config.Root
if err := d.restore(); err != nil {
return nil, err
}
return d, nil
}
func TestMigratePre17Volumes(t *testing.T) {
rootDir, err := ioutil.TempDir("", "test-daemon-volumes")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
volumeRoot := filepath.Join(rootDir, "volumes")
err = os.MkdirAll(volumeRoot, 0755)
if err != nil {
t.Fatal(err)
}
containerRoot := filepath.Join(rootDir, "containers")
cid := "1234"
err = os.MkdirAll(filepath.Join(containerRoot, cid), 0755)
vid := "5678"
vfsPath := filepath.Join(rootDir, "vfs", "dir", vid)
err = os.MkdirAll(vfsPath, 0755)
if err != nil {
t.Fatal(err)
}
config := []byte(`
{
"ID": "` + cid + `",
"Volumes": {
"/foo": "` + vfsPath + `",
"/bar": "/foo",
"/quux": "/quux"
},
"VolumesRW": {
"/foo": true,
"/bar": true,
"/quux": false
}
}
`)
volStore, err := store.New(volumeRoot)
if err != nil {
t.Fatal(err)
}
drv, err := local.New(volumeRoot, 0, 0)
if err != nil {
t.Fatal(err)
}
volumedrivers.Register(drv, volume.DefaultDriverName)
daemon := &Daemon{root: rootDir, repository: containerRoot, volumes: volStore}
err = ioutil.WriteFile(filepath.Join(containerRoot, cid, "config.v2.json"), config, 600)
if err != nil {
t.Fatal(err)
}
c, err := daemon.load(cid)
if err != nil {
t.Fatal(err)
}
if err := daemon.verifyVolumesInfo(c); err != nil {
t.Fatal(err)
}
expected := map[string]volume.MountPoint{
"/foo": {Destination: "/foo", RW: true, Name: vid},
"/bar": {Source: "/foo", Destination: "/bar", RW: true},
"/quux": {Source: "/quux", Destination: "/quux", RW: false},
}
for id, mp := range c.MountPoints {
x, exists := expected[id]
if !exists {
t.Fatal("volume not migrated")
}
if mp.Source != x.Source || mp.Destination != x.Destination || mp.RW != x.RW || mp.Name != x.Name {
t.Fatalf("got unexpected mountpoint, expected: %+v, got: %+v", x, mp)
}
}
}