2015-07-29 18:25:56 +00:00
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// +build linux freebsd
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2015-04-29 22:53:35 +00:00
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package daemon
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import (
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"fmt"
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"io/ioutil"
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2015-05-06 22:39:29 +00:00
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"net"
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2015-04-29 22:53:35 +00:00
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"os"
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2015-05-06 22:39:29 +00:00
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"path"
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2015-04-29 22:53:35 +00:00
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"path/filepath"
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2015-05-06 22:39:29 +00:00
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"strconv"
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2015-04-29 22:53:35 +00:00
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"strings"
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"syscall"
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"time"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/daemon/execdriver"
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2015-07-20 22:19:05 +00:00
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"github.com/docker/docker/daemon/links"
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2015-04-29 22:53:35 +00:00
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"github.com/docker/docker/daemon/network"
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"github.com/docker/docker/pkg/archive"
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"github.com/docker/docker/pkg/directory"
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"github.com/docker/docker/pkg/ioutils"
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2015-06-30 16:41:01 +00:00
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"github.com/docker/docker/pkg/nat"
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2015-04-29 22:53:35 +00:00
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"github.com/docker/docker/pkg/stringid"
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2015-06-11 18:29:29 +00:00
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"github.com/docker/docker/pkg/system"
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2015-04-29 22:53:35 +00:00
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"github.com/docker/docker/pkg/ulimit"
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"github.com/docker/docker/runconfig"
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"github.com/docker/docker/utils"
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2015-07-16 21:14:58 +00:00
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"github.com/docker/docker/volume"
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2015-05-06 22:39:29 +00:00
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"github.com/docker/libnetwork"
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"github.com/docker/libnetwork/netlabel"
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"github.com/docker/libnetwork/options"
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2015-05-23 06:00:03 +00:00
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"github.com/docker/libnetwork/types"
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2015-07-16 23:00:55 +00:00
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/devices"
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2015-07-16 21:14:58 +00:00
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"github.com/opencontainers/runc/libcontainer/label"
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2015-04-29 22:53:35 +00:00
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)
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const DefaultPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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type Container struct {
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CommonContainer
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// Fields below here are platform specific.
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2015-05-19 20:05:25 +00:00
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activeLinks map[string]*links.Link
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2015-07-16 21:14:58 +00:00
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AppArmorProfile string
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HostnamePath string
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HostsPath string
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MountPoints map[string]*mountPoint
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ResolvConfPath string
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UpdateDns bool
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Volumes map[string]string // Deprecated since 1.7, kept for backwards compatibility
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VolumesRW map[string]bool // Deprecated since 1.7, kept for backwards compatibility
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2015-04-29 22:53:35 +00:00
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}
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func killProcessDirectly(container *Container) error {
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if _, err := container.WaitStop(10 * time.Second); err != nil {
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// Ensure that we don't kill ourselves
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if pid := container.GetPid(); pid != 0 {
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logrus.Infof("Container %s failed to exit within 10 seconds of kill - trying direct SIGKILL", stringid.TruncateID(container.ID))
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if err := syscall.Kill(pid, 9); err != nil {
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if err != syscall.ESRCH {
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return err
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}
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logrus.Debugf("Cannot kill process (pid=%d) with signal 9: no such process.", pid)
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}
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}
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}
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return nil
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}
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func (container *Container) setupLinkedContainers() ([]string, error) {
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var (
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env []string
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daemon = container.daemon
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)
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children, err := daemon.Children(container.Name)
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if err != nil {
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return nil, err
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}
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if len(children) > 0 {
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for linkAlias, child := range children {
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if !child.IsRunning() {
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return nil, fmt.Errorf("Cannot link to a non running container: %s AS %s", child.Name, linkAlias)
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}
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2015-07-20 22:19:05 +00:00
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link := links.NewLink(
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2015-04-29 22:53:35 +00:00
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container.NetworkSettings.IPAddress,
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child.NetworkSettings.IPAddress,
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linkAlias,
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child.Config.Env,
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child.Config.ExposedPorts,
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)
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for _, envVar := range link.ToEnv() {
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env = append(env, envVar)
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}
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}
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}
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return env, nil
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}
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func (container *Container) createDaemonEnvironment(linkedEnv []string) []string {
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// if a domain name was specified, append it to the hostname (see #7851)
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fullHostname := container.Config.Hostname
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if container.Config.Domainname != "" {
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fullHostname = fmt.Sprintf("%s.%s", fullHostname, container.Config.Domainname)
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}
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// Setup environment
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env := []string{
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"PATH=" + DefaultPathEnv,
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"HOSTNAME=" + fullHostname,
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// Note: we don't set HOME here because it'll get autoset intelligently
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// based on the value of USER inside dockerinit, but only if it isn't
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// set already (ie, that can be overridden by setting HOME via -e or ENV
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// in a Dockerfile).
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}
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if container.Config.Tty {
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env = append(env, "TERM=xterm")
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}
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env = append(env, linkedEnv...)
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// because the env on the container can override certain default values
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// we need to replace the 'env' keys where they match and append anything
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// else.
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env = utils.ReplaceOrAppendEnvValues(env, container.Config.Env)
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return env
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}
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func getDevicesFromPath(deviceMapping runconfig.DeviceMapping) (devs []*configs.Device, err error) {
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device, err := devices.DeviceFromPath(deviceMapping.PathOnHost, deviceMapping.CgroupPermissions)
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// if there was no error, return the device
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if err == nil {
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device.Path = deviceMapping.PathInContainer
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return append(devs, device), nil
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}
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// if the device is not a device node
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// try to see if it's a directory holding many devices
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if err == devices.ErrNotADevice {
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// check if it is a directory
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if src, e := os.Stat(deviceMapping.PathOnHost); e == nil && src.IsDir() {
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// mount the internal devices recursively
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filepath.Walk(deviceMapping.PathOnHost, func(dpath string, f os.FileInfo, e error) error {
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childDevice, e := devices.DeviceFromPath(dpath, deviceMapping.CgroupPermissions)
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if e != nil {
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// ignore the device
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return nil
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}
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// add the device to userSpecified devices
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childDevice.Path = strings.Replace(dpath, deviceMapping.PathOnHost, deviceMapping.PathInContainer, 1)
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devs = append(devs, childDevice)
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return nil
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})
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}
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}
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if len(devs) > 0 {
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return devs, nil
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}
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return devs, fmt.Errorf("error gathering device information while adding custom device %q: %s", deviceMapping.PathOnHost, err)
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}
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func populateCommand(c *Container, env []string) error {
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2015-05-24 15:26:56 +00:00
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var en *execdriver.Network
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2015-06-04 00:31:22 +00:00
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if !c.Config.NetworkDisabled {
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2015-05-24 15:26:56 +00:00
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en = &execdriver.Network{
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NamespacePath: c.NetworkSettings.SandboxKey,
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}
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2015-04-29 22:53:35 +00:00
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2015-05-24 15:26:56 +00:00
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parts := strings.SplitN(string(c.hostConfig.NetworkMode), ":", 2)
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if parts[0] == "container" {
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nc, err := c.getNetworkedContainer()
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if err != nil {
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return err
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}
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en.ContainerID = nc.ID
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2015-04-29 22:53:35 +00:00
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}
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}
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ipc := &execdriver.Ipc{}
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if c.hostConfig.IpcMode.IsContainer() {
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ic, err := c.getIpcContainer()
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if err != nil {
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return err
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}
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ipc.ContainerID = ic.ID
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} else {
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ipc.HostIpc = c.hostConfig.IpcMode.IsHost()
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}
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pid := &execdriver.Pid{}
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pid.HostPid = c.hostConfig.PidMode.IsHost()
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uts := &execdriver.UTS{
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HostUTS: c.hostConfig.UTSMode.IsHost(),
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}
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// Build lists of devices allowed and created within the container.
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var userSpecifiedDevices []*configs.Device
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for _, deviceMapping := range c.hostConfig.Devices {
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devs, err := getDevicesFromPath(deviceMapping)
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if err != nil {
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return err
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}
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userSpecifiedDevices = append(userSpecifiedDevices, devs...)
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}
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2015-05-29 15:29:56 +00:00
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allowedDevices := mergeDevices(configs.DefaultAllowedDevices, userSpecifiedDevices)
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autoCreatedDevices := mergeDevices(configs.DefaultAutoCreatedDevices, userSpecifiedDevices)
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2015-04-29 22:53:35 +00:00
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// TODO: this can be removed after lxc-conf is fully deprecated
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lxcConfig, err := mergeLxcConfIntoOptions(c.hostConfig)
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if err != nil {
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return err
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}
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var rlimits []*ulimit.Rlimit
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ulimits := c.hostConfig.Ulimits
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// Merge ulimits with daemon defaults
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ulIdx := make(map[string]*ulimit.Ulimit)
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for _, ul := range ulimits {
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ulIdx[ul.Name] = ul
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}
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for name, ul := range c.daemon.config.Ulimits {
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if _, exists := ulIdx[name]; !exists {
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ulimits = append(ulimits, ul)
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}
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}
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for _, limit := range ulimits {
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rl, err := limit.GetRlimit()
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if err != nil {
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return err
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}
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rlimits = append(rlimits, rl)
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}
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resources := &execdriver.Resources{
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2015-07-12 07:46:33 +00:00
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Memory: c.hostConfig.Memory,
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MemorySwap: c.hostConfig.MemorySwap,
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2015-07-28 00:43:22 +00:00
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CPUShares: c.hostConfig.CPUShares,
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2015-07-12 07:46:33 +00:00
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CpusetCpus: c.hostConfig.CpusetCpus,
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CpusetMems: c.hostConfig.CpusetMems,
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2015-07-28 00:43:22 +00:00
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CPUPeriod: c.hostConfig.CPUPeriod,
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CPUQuota: c.hostConfig.CPUQuota,
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2015-07-12 07:46:33 +00:00
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BlkioWeight: c.hostConfig.BlkioWeight,
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Rlimits: rlimits,
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OomKillDisable: c.hostConfig.OomKillDisable,
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2015-07-29 20:04:12 +00:00
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MemorySwappiness: -1,
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}
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if c.hostConfig.MemorySwappiness != nil {
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resources.MemorySwappiness = *c.hostConfig.MemorySwappiness
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2015-04-29 22:53:35 +00:00
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}
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processConfig := execdriver.ProcessConfig{
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Privileged: c.hostConfig.Privileged,
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Entrypoint: c.Path,
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Arguments: c.Args,
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Tty: c.Config.Tty,
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User: c.Config.User,
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}
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processConfig.SysProcAttr = &syscall.SysProcAttr{Setsid: true}
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processConfig.Env = env
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c.command = &execdriver.Command{
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ID: c.ID,
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Rootfs: c.RootfsPath(),
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ReadonlyRootfs: c.hostConfig.ReadonlyRootfs,
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InitPath: "/.dockerinit",
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WorkingDir: c.Config.WorkingDir,
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Network: en,
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Ipc: ipc,
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Pid: pid,
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UTS: uts,
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Resources: resources,
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AllowedDevices: allowedDevices,
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AutoCreatedDevices: autoCreatedDevices,
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2015-07-01 17:59:18 +00:00
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CapAdd: c.hostConfig.CapAdd.Slice(),
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CapDrop: c.hostConfig.CapDrop.Slice(),
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2015-06-17 18:39:17 +00:00
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GroupAdd: c.hostConfig.GroupAdd,
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2015-04-29 22:53:35 +00:00
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ProcessConfig: processConfig,
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ProcessLabel: c.GetProcessLabel(),
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MountLabel: c.GetMountLabel(),
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LxcConfig: lxcConfig,
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AppArmorProfile: c.AppArmorProfile,
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CgroupParent: c.hostConfig.CgroupParent,
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}
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return nil
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}
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2015-05-29 15:29:56 +00:00
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func mergeDevices(defaultDevices, userDevices []*configs.Device) []*configs.Device {
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if len(userDevices) == 0 {
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return defaultDevices
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}
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paths := map[string]*configs.Device{}
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for _, d := range userDevices {
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paths[d.Path] = d
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}
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var devs []*configs.Device
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for _, d := range defaultDevices {
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if _, defined := paths[d.Path]; !defined {
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devs = append(devs, d)
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}
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}
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return append(devs, userDevices...)
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}
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2015-04-29 22:53:35 +00:00
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// GetSize, return real size, virtual size
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func (container *Container) GetSize() (int64, int64) {
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var (
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sizeRw, sizeRootfs int64
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err error
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driver = container.daemon.driver
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)
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if err := container.Mount(); err != nil {
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logrus.Errorf("Failed to compute size of container rootfs %s: %s", container.ID, err)
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return sizeRw, sizeRootfs
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}
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defer container.Unmount()
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initID := fmt.Sprintf("%s-init", container.ID)
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sizeRw, err = driver.DiffSize(container.ID, initID)
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if err != nil {
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logrus.Errorf("Driver %s couldn't return diff size of container %s: %s", driver, container.ID, err)
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// FIXME: GetSize should return an error. Not changing it now in case
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// there is a side-effect.
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sizeRw = -1
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}
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|
|
2015-05-19 05:48:44 +00:00
|
|
|
if _, err = os.Stat(container.basefs); err == nil {
|
2015-04-29 22:53:35 +00:00
|
|
|
if sizeRootfs, err = directory.Size(container.basefs); err != nil {
|
|
|
|
sizeRootfs = -1
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return sizeRw, sizeRootfs
|
|
|
|
}
|
|
|
|
|
2015-07-14 00:54:00 +00:00
|
|
|
// Attempt to set the network mounts given a provided destination and
|
|
|
|
// the path to use for it; return true if the given destination was a
|
|
|
|
// network mount file
|
|
|
|
func (container *Container) trySetNetworkMount(destination string, path string) bool {
|
|
|
|
if destination == "/etc/resolv.conf" {
|
|
|
|
container.ResolvConfPath = path
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
if destination == "/etc/hostname" {
|
|
|
|
container.HostnamePath = path
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
if destination == "/etc/hosts" {
|
|
|
|
container.HostsPath = path
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
func (container *Container) buildHostnameFile() error {
|
|
|
|
hostnamePath, err := container.GetRootResourcePath("hostname")
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
container.HostnamePath = hostnamePath
|
|
|
|
|
|
|
|
if container.Config.Domainname != "" {
|
|
|
|
return ioutil.WriteFile(container.HostnamePath, []byte(fmt.Sprintf("%s.%s\n", container.Config.Hostname, container.Config.Domainname)), 0644)
|
|
|
|
}
|
|
|
|
return ioutil.WriteFile(container.HostnamePath, []byte(container.Config.Hostname+"\n"), 0644)
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) buildJoinOptions() ([]libnetwork.EndpointOption, error) {
|
|
|
|
var (
|
|
|
|
joinOptions []libnetwork.EndpointOption
|
|
|
|
err error
|
|
|
|
dns []string
|
|
|
|
dnsSearch []string
|
|
|
|
)
|
|
|
|
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionHostname(container.Config.Hostname),
|
|
|
|
libnetwork.JoinOptionDomainname(container.Config.Domainname))
|
|
|
|
|
|
|
|
if container.hostConfig.NetworkMode.IsHost() {
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionUseDefaultSandbox())
|
|
|
|
}
|
|
|
|
|
|
|
|
container.HostsPath, err = container.GetRootResourcePath("hosts")
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionHostsPath(container.HostsPath))
|
|
|
|
|
|
|
|
container.ResolvConfPath, err = container.GetRootResourcePath("resolv.conf")
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionResolvConfPath(container.ResolvConfPath))
|
|
|
|
|
2015-07-25 09:11:45 +00:00
|
|
|
if len(container.hostConfig.DNS) > 0 {
|
|
|
|
dns = container.hostConfig.DNS
|
2015-05-06 22:39:29 +00:00
|
|
|
} else if len(container.daemon.config.Dns) > 0 {
|
|
|
|
dns = container.daemon.config.Dns
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, d := range dns {
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionDNS(d))
|
|
|
|
}
|
|
|
|
|
2015-07-25 09:11:45 +00:00
|
|
|
if len(container.hostConfig.DNSSearch) > 0 {
|
|
|
|
dnsSearch = container.hostConfig.DNSSearch
|
2015-05-06 22:39:29 +00:00
|
|
|
} else if len(container.daemon.config.DnsSearch) > 0 {
|
|
|
|
dnsSearch = container.daemon.config.DnsSearch
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, ds := range dnsSearch {
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionDNSSearch(ds))
|
|
|
|
}
|
|
|
|
|
|
|
|
if container.NetworkSettings.SecondaryIPAddresses != nil {
|
|
|
|
name := container.Config.Hostname
|
|
|
|
if container.Config.Domainname != "" {
|
|
|
|
name = name + "." + container.Config.Domainname
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, a := range container.NetworkSettings.SecondaryIPAddresses {
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionExtraHost(name, a.Addr))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
var childEndpoints, parentEndpoints []string
|
|
|
|
|
|
|
|
children, err := container.daemon.Children(container.Name)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
for linkAlias, child := range children {
|
|
|
|
_, alias := path.Split(linkAlias)
|
|
|
|
// allow access to the linked container via the alias, real name, and container hostname
|
|
|
|
aliasList := alias + " " + child.Config.Hostname
|
|
|
|
// only add the name if alias isn't equal to the name
|
|
|
|
if alias != child.Name[1:] {
|
|
|
|
aliasList = aliasList + " " + child.Name[1:]
|
|
|
|
}
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionExtraHost(aliasList, child.NetworkSettings.IPAddress))
|
|
|
|
if child.NetworkSettings.EndpointID != "" {
|
|
|
|
childEndpoints = append(childEndpoints, child.NetworkSettings.EndpointID)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, extraHost := range container.hostConfig.ExtraHosts {
|
|
|
|
// allow IPv6 addresses in extra hosts; only split on first ":"
|
|
|
|
parts := strings.SplitN(extraHost, ":", 2)
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionExtraHost(parts[0], parts[1]))
|
|
|
|
}
|
|
|
|
|
|
|
|
refs := container.daemon.ContainerGraph().RefPaths(container.ID)
|
|
|
|
for _, ref := range refs {
|
|
|
|
if ref.ParentID == "0" {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
|
|
|
c, err := container.daemon.Get(ref.ParentID)
|
|
|
|
if err != nil {
|
|
|
|
logrus.Error(err)
|
|
|
|
}
|
|
|
|
|
2015-06-30 17:34:15 +00:00
|
|
|
if c != nil && !container.daemon.config.DisableBridge && container.hostConfig.NetworkMode.IsPrivate() {
|
2015-05-06 22:39:29 +00:00
|
|
|
logrus.Debugf("Update /etc/hosts of %s for alias %s with ip %s", c.ID, ref.Name, container.NetworkSettings.IPAddress)
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionParentUpdate(c.NetworkSettings.EndpointID, ref.Name, container.NetworkSettings.IPAddress))
|
|
|
|
if c.NetworkSettings.EndpointID != "" {
|
|
|
|
parentEndpoints = append(parentEndpoints, c.NetworkSettings.EndpointID)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
linkOptions := options.Generic{
|
|
|
|
netlabel.GenericData: options.Generic{
|
|
|
|
"ParentEndpoints": parentEndpoints,
|
|
|
|
"ChildEndpoints": childEndpoints,
|
|
|
|
},
|
|
|
|
}
|
|
|
|
|
|
|
|
joinOptions = append(joinOptions, libnetwork.JoinOptionGeneric(linkOptions))
|
|
|
|
|
|
|
|
return joinOptions, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) buildPortMapInfo(n libnetwork.Network, ep libnetwork.Endpoint, networkSettings *network.Settings) (*network.Settings, error) {
|
|
|
|
if ep == nil {
|
|
|
|
return nil, fmt.Errorf("invalid endpoint while building port map info")
|
|
|
|
}
|
|
|
|
|
|
|
|
if networkSettings == nil {
|
|
|
|
return nil, fmt.Errorf("invalid networksettings while building port map info")
|
|
|
|
}
|
|
|
|
|
|
|
|
driverInfo, err := ep.DriverInfo()
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
if driverInfo == nil {
|
|
|
|
// It is not an error for epInfo to be nil
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
if mac, ok := driverInfo[netlabel.MacAddress]; ok {
|
|
|
|
networkSettings.MacAddress = mac.(net.HardwareAddr).String()
|
|
|
|
}
|
|
|
|
|
2015-06-04 05:47:08 +00:00
|
|
|
networkSettings.Ports = nat.PortMap{}
|
|
|
|
|
|
|
|
if expData, ok := driverInfo[netlabel.ExposedPorts]; ok {
|
|
|
|
if exposedPorts, ok := expData.([]types.TransportPort); ok {
|
|
|
|
for _, tp := range exposedPorts {
|
2015-07-16 03:45:48 +00:00
|
|
|
natPort, err := nat.NewPort(tp.Proto.String(), strconv.Itoa(int(tp.Port)))
|
|
|
|
if err != nil {
|
2015-07-25 09:11:45 +00:00
|
|
|
return nil, fmt.Errorf("Error parsing Port value(%v):%v", tp.Port, err)
|
2015-07-16 03:45:48 +00:00
|
|
|
}
|
2015-06-04 05:47:08 +00:00
|
|
|
networkSettings.Ports[natPort] = nil
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
mapData, ok := driverInfo[netlabel.PortMap]
|
|
|
|
if !ok {
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
2015-05-23 06:00:03 +00:00
|
|
|
if portMapping, ok := mapData.([]types.PortBinding); ok {
|
2015-05-06 22:39:29 +00:00
|
|
|
for _, pp := range portMapping {
|
2015-07-16 03:45:48 +00:00
|
|
|
natPort, err := nat.NewPort(pp.Proto.String(), strconv.Itoa(int(pp.Port)))
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2015-07-21 13:43:32 +00:00
|
|
|
natBndg := nat.PortBinding{HostIP: pp.HostIP.String(), HostPort: strconv.Itoa(int(pp.HostPort))}
|
2015-05-06 22:39:29 +00:00
|
|
|
networkSettings.Ports[natPort] = append(networkSettings.Ports[natPort], natBndg)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) buildEndpointInfo(n libnetwork.Network, ep libnetwork.Endpoint, networkSettings *network.Settings) (*network.Settings, error) {
|
|
|
|
if ep == nil {
|
|
|
|
return nil, fmt.Errorf("invalid endpoint while building port map info")
|
|
|
|
}
|
|
|
|
|
|
|
|
if networkSettings == nil {
|
|
|
|
return nil, fmt.Errorf("invalid networksettings while building port map info")
|
|
|
|
}
|
|
|
|
|
|
|
|
epInfo := ep.Info()
|
|
|
|
if epInfo == nil {
|
|
|
|
// It is not an error to get an empty endpoint info
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
ifaceList := epInfo.InterfaceList()
|
|
|
|
if len(ifaceList) == 0 {
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
iface := ifaceList[0]
|
|
|
|
|
|
|
|
ones, _ := iface.Address().Mask.Size()
|
|
|
|
networkSettings.IPAddress = iface.Address().IP.String()
|
|
|
|
networkSettings.IPPrefixLen = ones
|
|
|
|
|
|
|
|
if iface.AddressIPv6().IP.To16() != nil {
|
|
|
|
onesv6, _ := iface.AddressIPv6().Mask.Size()
|
|
|
|
networkSettings.GlobalIPv6Address = iface.AddressIPv6().IP.String()
|
|
|
|
networkSettings.GlobalIPv6PrefixLen = onesv6
|
|
|
|
}
|
|
|
|
|
|
|
|
if len(ifaceList) == 1 {
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
networkSettings.SecondaryIPAddresses = make([]network.Address, 0, len(ifaceList)-1)
|
|
|
|
networkSettings.SecondaryIPv6Addresses = make([]network.Address, 0, len(ifaceList)-1)
|
|
|
|
for _, iface := range ifaceList[1:] {
|
|
|
|
ones, _ := iface.Address().Mask.Size()
|
|
|
|
addr := network.Address{Addr: iface.Address().IP.String(), PrefixLen: ones}
|
|
|
|
networkSettings.SecondaryIPAddresses = append(networkSettings.SecondaryIPAddresses, addr)
|
|
|
|
|
|
|
|
if iface.AddressIPv6().IP.To16() != nil {
|
|
|
|
onesv6, _ := iface.AddressIPv6().Mask.Size()
|
|
|
|
addrv6 := network.Address{Addr: iface.AddressIPv6().IP.String(), PrefixLen: onesv6}
|
|
|
|
networkSettings.SecondaryIPv6Addresses = append(networkSettings.SecondaryIPv6Addresses, addrv6)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return networkSettings, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) updateJoinInfo(ep libnetwork.Endpoint) error {
|
|
|
|
epInfo := ep.Info()
|
|
|
|
if epInfo == nil {
|
|
|
|
// It is not an error to get an empty endpoint info
|
2015-04-29 22:53:35 +00:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
container.NetworkSettings.Gateway = epInfo.Gateway().String()
|
|
|
|
if epInfo.GatewayIPv6().To16() != nil {
|
|
|
|
container.NetworkSettings.IPv6Gateway = epInfo.GatewayIPv6().String()
|
|
|
|
}
|
|
|
|
|
|
|
|
container.NetworkSettings.SandboxKey = epInfo.SandboxKey()
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) updateNetworkSettings(n libnetwork.Network, ep libnetwork.Endpoint) error {
|
|
|
|
networkSettings := &network.Settings{NetworkID: n.ID(), EndpointID: ep.ID()}
|
|
|
|
|
|
|
|
networkSettings, err := container.buildPortMapInfo(n, ep, networkSettings)
|
2015-04-29 22:53:35 +00:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
networkSettings, err = container.buildEndpointInfo(n, ep, networkSettings)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
if container.hostConfig.NetworkMode == runconfig.NetworkMode("bridge") {
|
|
|
|
networkSettings.Bridge = container.daemon.config.Bridge.Iface
|
|
|
|
}
|
|
|
|
|
|
|
|
container.NetworkSettings = networkSettings
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2015-07-20 22:19:05 +00:00
|
|
|
// UpdateNetwork is used to update the container's network (e.g. when linked containers
|
|
|
|
// get removed/unlinked).
|
2015-05-06 22:39:29 +00:00
|
|
|
func (container *Container) UpdateNetwork() error {
|
|
|
|
n, err := container.daemon.netController.NetworkByID(container.NetworkSettings.NetworkID)
|
|
|
|
if err != nil {
|
|
|
|
return fmt.Errorf("error locating network id %s: %v", container.NetworkSettings.NetworkID, err)
|
|
|
|
}
|
|
|
|
|
|
|
|
ep, err := n.EndpointByID(container.NetworkSettings.EndpointID)
|
|
|
|
if err != nil {
|
|
|
|
return fmt.Errorf("error locating endpoint id %s: %v", container.NetworkSettings.EndpointID, err)
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := ep.Leave(container.ID); err != nil {
|
|
|
|
return fmt.Errorf("endpoint leave failed: %v", err)
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
joinOptions, err := container.buildJoinOptions()
|
|
|
|
if err != nil {
|
|
|
|
return fmt.Errorf("Update network failed: %v", err)
|
|
|
|
}
|
|
|
|
|
2015-06-12 20:51:57 +00:00
|
|
|
if err := ep.Join(container.ID, joinOptions...); err != nil {
|
2015-05-06 22:39:29 +00:00
|
|
|
return fmt.Errorf("endpoint join failed: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := container.updateJoinInfo(ep); err != nil {
|
|
|
|
return fmt.Errorf("Updating join info failed: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) buildCreateEndpointOptions() ([]libnetwork.EndpointOption, error) {
|
|
|
|
var (
|
|
|
|
portSpecs = make(nat.PortSet)
|
|
|
|
bindings = make(nat.PortMap)
|
2015-05-23 06:00:03 +00:00
|
|
|
pbList []types.PortBinding
|
|
|
|
exposeList []types.TransportPort
|
2015-05-06 22:39:29 +00:00
|
|
|
createOptions []libnetwork.EndpointOption
|
|
|
|
)
|
2015-04-29 22:53:35 +00:00
|
|
|
|
|
|
|
if container.Config.ExposedPorts != nil {
|
|
|
|
portSpecs = container.Config.ExposedPorts
|
|
|
|
}
|
|
|
|
|
|
|
|
if container.hostConfig.PortBindings != nil {
|
|
|
|
for p, b := range container.hostConfig.PortBindings {
|
|
|
|
bindings[p] = []nat.PortBinding{}
|
|
|
|
for _, bb := range b {
|
|
|
|
bindings[p] = append(bindings[p], nat.PortBinding{
|
2015-07-21 13:43:32 +00:00
|
|
|
HostIP: bb.HostIP,
|
2015-04-29 22:53:35 +00:00
|
|
|
HostPort: bb.HostPort,
|
|
|
|
})
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
container.NetworkSettings.PortMapping = nil
|
|
|
|
|
|
|
|
ports := make([]nat.Port, len(portSpecs))
|
|
|
|
var i int
|
|
|
|
for p := range portSpecs {
|
|
|
|
ports[i] = p
|
|
|
|
i++
|
|
|
|
}
|
|
|
|
nat.SortPortMap(ports, bindings)
|
|
|
|
for _, port := range ports {
|
2015-05-23 06:00:03 +00:00
|
|
|
expose := types.TransportPort{}
|
|
|
|
expose.Proto = types.ParseProtocol(port.Proto())
|
2015-05-06 22:39:29 +00:00
|
|
|
expose.Port = uint16(port.Int())
|
|
|
|
exposeList = append(exposeList, expose)
|
|
|
|
|
2015-05-23 06:00:03 +00:00
|
|
|
pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
|
2015-05-06 22:39:29 +00:00
|
|
|
binding := bindings[port]
|
|
|
|
for i := 0; i < len(binding); i++ {
|
|
|
|
pbCopy := pb.GetCopy()
|
2015-07-16 03:45:48 +00:00
|
|
|
newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
|
|
|
|
if err != nil {
|
|
|
|
return nil, fmt.Errorf("Error parsing HostPort value(%s):%v", binding[i].HostPort, err)
|
|
|
|
}
|
|
|
|
pbCopy.HostPort = uint16(newP.Int())
|
2015-07-21 13:43:32 +00:00
|
|
|
pbCopy.HostIP = net.ParseIP(binding[i].HostIP)
|
2015-05-06 22:39:29 +00:00
|
|
|
pbList = append(pbList, pbCopy)
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
if container.hostConfig.PublishAllPorts && len(binding) == 0 {
|
|
|
|
pbList = append(pbList, pb)
|
|
|
|
}
|
|
|
|
}
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
createOptions = append(createOptions,
|
|
|
|
libnetwork.CreateOptionPortMapping(pbList),
|
|
|
|
libnetwork.CreateOptionExposedPorts(exposeList))
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
if container.Config.MacAddress != "" {
|
|
|
|
mac, err := net.ParseMAC(container.Config.MacAddress)
|
2015-04-29 22:53:35 +00:00
|
|
|
if err != nil {
|
2015-05-06 22:39:29 +00:00
|
|
|
return nil, err
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
genericOption := options.Generic{
|
|
|
|
netlabel.MacAddress: mac,
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
createOptions = append(createOptions, libnetwork.EndpointOptionGeneric(genericOption))
|
|
|
|
}
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
return createOptions, nil
|
|
|
|
}
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-06-15 05:31:09 +00:00
|
|
|
func parseService(controller libnetwork.NetworkController, service string) (string, string, string) {
|
|
|
|
dn := controller.Config().Daemon.DefaultNetwork
|
|
|
|
dd := controller.Config().Daemon.DefaultDriver
|
|
|
|
|
|
|
|
snd := strings.Split(service, ".")
|
|
|
|
if len(snd) > 2 {
|
|
|
|
return strings.Join(snd[:len(snd)-2], "."), snd[len(snd)-2], snd[len(snd)-1]
|
|
|
|
}
|
|
|
|
if len(snd) > 1 {
|
|
|
|
return snd[0], snd[1], dd
|
|
|
|
}
|
|
|
|
return snd[0], dn, dd
|
|
|
|
}
|
|
|
|
|
|
|
|
func createNetwork(controller libnetwork.NetworkController, dnet string, driver string) (libnetwork.Network, error) {
|
2015-05-20 12:20:19 +00:00
|
|
|
createOptions := []libnetwork.NetworkOption{}
|
|
|
|
genericOption := options.Generic{}
|
|
|
|
|
|
|
|
// Bridge driver is special due to legacy reasons
|
|
|
|
if runconfig.NetworkMode(driver).IsBridge() {
|
|
|
|
genericOption[netlabel.GenericData] = map[string]interface{}{
|
|
|
|
"BridgeName": dnet,
|
|
|
|
"AllowNonDefaultBridge": "true",
|
|
|
|
}
|
|
|
|
networkOption := libnetwork.NetworkOptionGeneric(genericOption)
|
|
|
|
createOptions = append(createOptions, networkOption)
|
|
|
|
}
|
|
|
|
|
|
|
|
return controller.NewNetwork(driver, dnet, createOptions...)
|
|
|
|
}
|
|
|
|
|
2015-06-20 04:15:51 +00:00
|
|
|
func (container *Container) secondaryNetworkRequired(primaryNetworkType string) bool {
|
|
|
|
switch primaryNetworkType {
|
|
|
|
case "bridge", "none", "host", "container":
|
|
|
|
return false
|
|
|
|
}
|
2015-06-30 17:34:15 +00:00
|
|
|
|
|
|
|
if container.daemon.config.DisableBridge {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
2015-06-20 04:15:51 +00:00
|
|
|
if container.Config.ExposedPorts != nil && len(container.Config.ExposedPorts) > 0 {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
if container.hostConfig.PortBindings != nil && len(container.hostConfig.PortBindings) > 0 {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
2015-05-06 22:39:29 +00:00
|
|
|
func (container *Container) AllocateNetwork() error {
|
|
|
|
mode := container.hostConfig.NetworkMode
|
2015-05-20 12:20:19 +00:00
|
|
|
controller := container.daemon.netController
|
2015-05-06 22:39:29 +00:00
|
|
|
if container.Config.NetworkDisabled || mode.IsContainer() {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2015-06-20 04:15:51 +00:00
|
|
|
networkDriver := string(mode)
|
2015-06-15 05:31:09 +00:00
|
|
|
service := container.Config.PublishService
|
2015-05-20 12:20:19 +00:00
|
|
|
networkName := mode.NetworkName()
|
|
|
|
if mode.IsDefault() {
|
2015-06-15 05:31:09 +00:00
|
|
|
if service != "" {
|
|
|
|
service, networkName, networkDriver = parseService(controller, service)
|
|
|
|
} else {
|
|
|
|
networkName = controller.Config().Daemon.DefaultNetwork
|
|
|
|
networkDriver = controller.Config().Daemon.DefaultDriver
|
|
|
|
}
|
|
|
|
} else if service != "" {
|
|
|
|
return fmt.Errorf("conflicting options: publishing a service and network mode")
|
|
|
|
}
|
|
|
|
|
2015-06-30 17:34:15 +00:00
|
|
|
if runconfig.NetworkMode(networkDriver).IsBridge() && container.daemon.config.DisableBridge {
|
|
|
|
container.Config.NetworkDisabled = true
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2015-06-15 05:31:09 +00:00
|
|
|
if service == "" {
|
2015-06-21 00:08:36 +00:00
|
|
|
// dot character "." has a special meaning to support SERVICE[.NETWORK] format.
|
2015-08-07 22:24:18 +00:00
|
|
|
// For backward compatibility, replacing "." with "-", instead of failing
|
2015-06-15 05:31:09 +00:00
|
|
|
service = strings.Replace(container.Name, ".", "-", -1)
|
2015-06-21 00:08:36 +00:00
|
|
|
// Service names dont like "/" in them. removing it instead of failing for backward compatibility
|
|
|
|
service = strings.Replace(service, "/", "", -1)
|
2015-05-20 12:20:19 +00:00
|
|
|
}
|
|
|
|
|
2015-06-20 04:15:51 +00:00
|
|
|
if container.secondaryNetworkRequired(networkDriver) {
|
|
|
|
// Configure Bridge as secondary network for port binding purposes
|
|
|
|
if err := container.configureNetwork("bridge", service, "bridge", false); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
2015-06-20 04:15:51 +00:00
|
|
|
if err := container.configureNetwork(networkName, service, networkDriver, mode.IsDefault()); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
return container.WriteHostConfig()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) configureNetwork(networkName, service, networkDriver string, canCreateNetwork bool) error {
|
|
|
|
controller := container.daemon.netController
|
2015-05-20 12:20:19 +00:00
|
|
|
n, err := controller.NetworkByName(networkName)
|
2015-05-06 22:39:29 +00:00
|
|
|
if err != nil {
|
2015-06-20 04:15:51 +00:00
|
|
|
if _, ok := err.(libnetwork.ErrNoSuchNetwork); !ok || !canCreateNetwork {
|
2015-06-15 05:31:09 +00:00
|
|
|
return err
|
2015-05-20 12:20:19 +00:00
|
|
|
}
|
2015-06-15 05:31:09 +00:00
|
|
|
|
|
|
|
if n, err = createNetwork(controller, networkName, networkDriver); err != nil {
|
2015-05-20 12:20:19 +00:00
|
|
|
return err
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
}
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-06-15 05:31:09 +00:00
|
|
|
ep, err := n.EndpointByName(service)
|
2015-05-06 22:39:29 +00:00
|
|
|
if err != nil {
|
2015-06-15 05:31:09 +00:00
|
|
|
if _, ok := err.(libnetwork.ErrNoSuchEndpoint); !ok {
|
|
|
|
return err
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
2015-06-15 05:31:09 +00:00
|
|
|
createOptions, err := container.buildCreateEndpointOptions()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
ep, err = n.CreateEndpoint(service, createOptions...)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if err := container.updateNetworkSettings(n, ep); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
joinOptions, err := container.buildJoinOptions()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
2015-06-12 20:51:57 +00:00
|
|
|
if err := ep.Join(container.ID, joinOptions...); err != nil {
|
2015-05-06 22:39:29 +00:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := container.updateJoinInfo(ep); err != nil {
|
|
|
|
return fmt.Errorf("Updating join info failed: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) initializeNetworking() error {
|
|
|
|
var err error
|
|
|
|
|
2015-04-29 22:53:35 +00:00
|
|
|
if container.hostConfig.NetworkMode.IsContainer() {
|
|
|
|
// we need to get the hosts files from the container to join
|
|
|
|
nc, err := container.getNetworkedContainer()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
container.HostnamePath = nc.HostnamePath
|
|
|
|
container.HostsPath = nc.HostsPath
|
|
|
|
container.ResolvConfPath = nc.ResolvConfPath
|
|
|
|
container.Config.Hostname = nc.Config.Hostname
|
|
|
|
container.Config.Domainname = nc.Config.Domainname
|
|
|
|
return nil
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
|
|
|
if container.hostConfig.NetworkMode.IsHost() {
|
|
|
|
container.Config.Hostname, err = os.Hostname()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
parts := strings.SplitN(container.Config.Hostname, ".", 2)
|
|
|
|
if len(parts) > 1 {
|
|
|
|
container.Config.Hostname = parts[0]
|
|
|
|
container.Config.Domainname = parts[1]
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2015-04-29 22:53:35 +00:00
|
|
|
if err := container.AllocateNetwork(); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
|
|
|
return container.buildHostnameFile()
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) ExportRw() (archive.Archive, error) {
|
|
|
|
if container.daemon == nil {
|
|
|
|
return nil, fmt.Errorf("Can't load storage driver for unregistered container %s", container.ID)
|
|
|
|
}
|
|
|
|
archive, err := container.daemon.Diff(container)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
return ioutils.NewReadCloserWrapper(archive, func() error {
|
|
|
|
err := archive.Close()
|
|
|
|
return err
|
|
|
|
}),
|
|
|
|
nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) getIpcContainer() (*Container, error) {
|
|
|
|
containerID := container.hostConfig.IpcMode.Container()
|
|
|
|
c, err := container.daemon.Get(containerID)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
if !c.IsRunning() {
|
|
|
|
return nil, fmt.Errorf("cannot join IPC of a non running container: %s", containerID)
|
|
|
|
}
|
|
|
|
return c, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) setupWorkingDirectory() error {
|
|
|
|
if container.Config.WorkingDir != "" {
|
|
|
|
container.Config.WorkingDir = filepath.Clean(container.Config.WorkingDir)
|
|
|
|
|
|
|
|
pth, err := container.GetResourcePath(container.Config.WorkingDir)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
pthInfo, err := os.Stat(pth)
|
|
|
|
if err != nil {
|
|
|
|
if !os.IsNotExist(err) {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
2015-06-11 18:29:29 +00:00
|
|
|
if err := system.MkdirAll(pth, 0755); err != nil {
|
2015-04-29 22:53:35 +00:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if pthInfo != nil && !pthInfo.IsDir() {
|
|
|
|
return fmt.Errorf("Cannot mkdir: %s is not a directory", container.Config.WorkingDir)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) getNetworkedContainer() (*Container, error) {
|
|
|
|
parts := strings.SplitN(string(container.hostConfig.NetworkMode), ":", 2)
|
|
|
|
switch parts[0] {
|
|
|
|
case "container":
|
|
|
|
if len(parts) != 2 {
|
|
|
|
return nil, fmt.Errorf("no container specified to join network")
|
|
|
|
}
|
|
|
|
nc, err := container.daemon.Get(parts[1])
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
if container == nc {
|
|
|
|
return nil, fmt.Errorf("cannot join own network")
|
|
|
|
}
|
|
|
|
if !nc.IsRunning() {
|
|
|
|
return nil, fmt.Errorf("cannot join network of a non running container: %s", parts[1])
|
|
|
|
}
|
|
|
|
return nc, nil
|
|
|
|
default:
|
|
|
|
return nil, fmt.Errorf("network mode not set to container")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) ReleaseNetwork() {
|
2015-06-30 17:34:15 +00:00
|
|
|
if container.hostConfig.NetworkMode.IsContainer() || container.Config.NetworkDisabled {
|
2015-04-29 22:53:35 +00:00
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2015-06-21 00:09:36 +00:00
|
|
|
eid := container.NetworkSettings.EndpointID
|
|
|
|
nid := container.NetworkSettings.NetworkID
|
2015-04-29 22:53:35 +00:00
|
|
|
|
2015-06-21 00:09:36 +00:00
|
|
|
container.NetworkSettings = &network.Settings{}
|
2015-05-06 22:39:29 +00:00
|
|
|
|
2015-06-24 17:23:00 +00:00
|
|
|
if nid == "" || eid == "" {
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
n, err := container.daemon.netController.NetworkByID(nid)
|
|
|
|
if err != nil {
|
|
|
|
logrus.Errorf("error locating network id %s: %v", nid, err)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
ep, err := n.EndpointByID(eid)
|
|
|
|
if err != nil {
|
|
|
|
logrus.Errorf("error locating endpoint id %s: %v", eid, err)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
switch {
|
|
|
|
case container.hostConfig.NetworkMode.IsHost():
|
|
|
|
if err := ep.Leave(container.ID); err != nil {
|
|
|
|
logrus.Errorf("Error leaving endpoint id %s for container %s: %v", eid, container.ID, err)
|
2015-06-21 00:09:36 +00:00
|
|
|
return
|
|
|
|
}
|
2015-06-24 17:23:00 +00:00
|
|
|
default:
|
|
|
|
if err := container.daemon.netController.LeaveAll(container.ID); err != nil {
|
|
|
|
logrus.Errorf("Leave all failed for %s: %v", container.ID, err)
|
2015-06-21 00:09:36 +00:00
|
|
|
return
|
|
|
|
}
|
2015-06-24 17:23:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// In addition to leaving all endpoints, delete implicitly created endpoint
|
|
|
|
if container.Config.PublishService == "" {
|
2015-06-21 00:09:36 +00:00
|
|
|
if err := ep.Delete(); err != nil {
|
|
|
|
logrus.Errorf("deleting endpoint failed: %v", err)
|
|
|
|
}
|
2015-05-06 22:39:29 +00:00
|
|
|
}
|
2015-04-29 22:53:35 +00:00
|
|
|
}
|
2015-05-26 16:33:55 +00:00
|
|
|
|
|
|
|
func (container *Container) UnmountVolumes(forceSyscall bool) error {
|
2015-05-26 21:20:55 +00:00
|
|
|
var volumeMounts []mountPoint
|
|
|
|
|
|
|
|
for _, mntPoint := range container.MountPoints {
|
|
|
|
dest, err := container.GetResourcePath(mntPoint.Destination)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
volumeMounts = append(volumeMounts, mountPoint{Destination: dest, Volume: mntPoint.Volume})
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, mnt := range container.networkMounts() {
|
|
|
|
dest, err := container.GetResourcePath(mnt.Destination)
|
2015-05-26 16:33:55 +00:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
2015-05-26 21:20:55 +00:00
|
|
|
volumeMounts = append(volumeMounts, mountPoint{Destination: dest})
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, volumeMount := range volumeMounts {
|
2015-05-26 16:33:55 +00:00
|
|
|
if forceSyscall {
|
2015-05-26 21:20:55 +00:00
|
|
|
syscall.Unmount(volumeMount.Destination, 0)
|
2015-05-26 16:33:55 +00:00
|
|
|
}
|
|
|
|
|
2015-05-26 21:20:55 +00:00
|
|
|
if volumeMount.Volume != nil {
|
|
|
|
if err := volumeMount.Volume.Unmount(); err != nil {
|
2015-05-26 16:33:55 +00:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2015-05-26 21:20:55 +00:00
|
|
|
|
2015-05-26 16:33:55 +00:00
|
|
|
return nil
|
|
|
|
}
|
2015-06-11 18:29:29 +00:00
|
|
|
|
|
|
|
func (container *Container) PrepareStorage() error {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) CleanupStorage() error {
|
|
|
|
return nil
|
|
|
|
}
|
2015-07-16 21:14:58 +00:00
|
|
|
|
|
|
|
func (container *Container) networkMounts() []execdriver.Mount {
|
|
|
|
var mounts []execdriver.Mount
|
2015-07-29 13:43:06 +00:00
|
|
|
mode := "Z"
|
|
|
|
if container.hostConfig.NetworkMode.IsContainer() {
|
|
|
|
mode = "z"
|
|
|
|
}
|
2015-07-16 21:14:58 +00:00
|
|
|
if container.ResolvConfPath != "" {
|
2015-07-29 13:43:06 +00:00
|
|
|
label.Relabel(container.ResolvConfPath, container.MountLabel, mode)
|
2015-07-24 18:23:20 +00:00
|
|
|
writable := !container.hostConfig.ReadonlyRootfs
|
|
|
|
if m, exists := container.MountPoints["/etc/resolv.conf"]; exists {
|
|
|
|
writable = m.RW
|
|
|
|
}
|
2015-07-16 21:14:58 +00:00
|
|
|
mounts = append(mounts, execdriver.Mount{
|
|
|
|
Source: container.ResolvConfPath,
|
|
|
|
Destination: "/etc/resolv.conf",
|
2015-07-24 18:23:20 +00:00
|
|
|
Writable: writable,
|
2015-07-16 21:14:58 +00:00
|
|
|
Private: true,
|
|
|
|
})
|
|
|
|
}
|
|
|
|
if container.HostnamePath != "" {
|
2015-07-29 13:43:06 +00:00
|
|
|
label.Relabel(container.HostnamePath, container.MountLabel, mode)
|
2015-07-24 18:23:20 +00:00
|
|
|
writable := !container.hostConfig.ReadonlyRootfs
|
|
|
|
if m, exists := container.MountPoints["/etc/hostname"]; exists {
|
|
|
|
writable = m.RW
|
|
|
|
}
|
2015-07-16 21:14:58 +00:00
|
|
|
mounts = append(mounts, execdriver.Mount{
|
|
|
|
Source: container.HostnamePath,
|
|
|
|
Destination: "/etc/hostname",
|
2015-07-24 18:23:20 +00:00
|
|
|
Writable: writable,
|
2015-07-16 21:14:58 +00:00
|
|
|
Private: true,
|
|
|
|
})
|
|
|
|
}
|
|
|
|
if container.HostsPath != "" {
|
2015-07-29 13:43:06 +00:00
|
|
|
label.Relabel(container.HostsPath, container.MountLabel, mode)
|
2015-07-24 18:23:20 +00:00
|
|
|
writable := !container.hostConfig.ReadonlyRootfs
|
|
|
|
if m, exists := container.MountPoints["/etc/hosts"]; exists {
|
|
|
|
writable = m.RW
|
|
|
|
}
|
2015-07-16 21:14:58 +00:00
|
|
|
mounts = append(mounts, execdriver.Mount{
|
|
|
|
Source: container.HostsPath,
|
|
|
|
Destination: "/etc/hosts",
|
2015-07-24 18:23:20 +00:00
|
|
|
Writable: writable,
|
2015-07-16 21:14:58 +00:00
|
|
|
Private: true,
|
|
|
|
})
|
|
|
|
}
|
|
|
|
return mounts
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) addBindMountPoint(name, source, destination string, rw bool) {
|
|
|
|
container.MountPoints[destination] = &mountPoint{
|
|
|
|
Name: name,
|
|
|
|
Source: source,
|
|
|
|
Destination: destination,
|
|
|
|
RW: rw,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) addLocalMountPoint(name, destination string, rw bool) {
|
|
|
|
container.MountPoints[destination] = &mountPoint{
|
|
|
|
Name: name,
|
|
|
|
Driver: volume.DefaultDriverName,
|
|
|
|
Destination: destination,
|
|
|
|
RW: rw,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) addMountPointWithVolume(destination string, vol volume.Volume, rw bool) {
|
|
|
|
container.MountPoints[destination] = &mountPoint{
|
|
|
|
Name: vol.Name(),
|
|
|
|
Driver: vol.DriverName(),
|
|
|
|
Destination: destination,
|
|
|
|
RW: rw,
|
|
|
|
Volume: vol,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) isDestinationMounted(destination string) bool {
|
|
|
|
return container.MountPoints[destination] != nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) prepareMountPoints() error {
|
|
|
|
for _, config := range container.MountPoints {
|
|
|
|
if len(config.Driver) > 0 {
|
|
|
|
v, err := createVolume(config.Name, config.Driver)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
config.Volume = v
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (container *Container) removeMountPoints() error {
|
|
|
|
for _, m := range container.MountPoints {
|
|
|
|
if m.Volume != nil {
|
|
|
|
if err := removeVolume(m.Volume); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|