Esempio n. 1
0
func (d *driver) createNetwork(container *libcontainer.Config, c *execdriver.Command) error {
	if c.Network.HostNetworking {
		container.Namespaces["NEWNET"] = false
		return nil
	}

	container.Networks = []*libcontainer.Network{
		{
			Mtu:     c.Network.Mtu,
			Address: fmt.Sprintf("%s/%d", "127.0.0.1", 0),
			Gateway: "localhost",
			Type:    "loopback",
		},
	}

	if c.Network.Interface != nil {
		vethNetwork := libcontainer.Network{
			Mtu:        c.Network.Mtu,
			Address:    fmt.Sprintf("%s/%d", c.Network.Interface.IPAddress, c.Network.Interface.IPPrefixLen),
			MacAddress: c.Network.Interface.MacAddress,
			Gateway:    c.Network.Interface.Gateway,
			Type:       "veth",
			Bridge:     c.Network.Interface.Bridge,
			VethPrefix: "veth",
		}
		container.Networks = append(container.Networks, &vethNetwork)
	}

	if c.Network.ContainerID != "" {
		if d.driverType == execdriver.NativeBuiltin {
			d.Lock()
			active := d.activeContainers[c.Network.ContainerID]
			d.Unlock()

			if active == nil || active.cmd.Process == nil {
				return fmt.Errorf("%s is not a valid running container to join", c.Network.ContainerID)
			}
			cmd := active.cmd

			nspath := filepath.Join("/proc", fmt.Sprint(cmd.Process.Pid), "ns", "net")
			container.Networks = append(container.Networks, &libcontainer.Network{
				Type:   "netns",
				NsPath: nspath,
			})
		} else { // external container
			state, err := libcontainer.GetState(filepath.Join(d.root, c.Network.ContainerID))
			if err != nil {
				return fmt.Errorf("Read container state error: %v", err)
			}
			nspath := filepath.Join("/proc", fmt.Sprint(state.InitPid), "ns", "net")
			container.Networks = append(container.Networks, &libcontainer.Network{
				Type:   "netns",
				NsPath: nspath,
			})
		}

	}

	return nil
}
Esempio n. 2
0
func (d *driver) createNetwork(container *libcontainer.Config, c *execdriver.Command) error {
	if c.Network.HostNetworking {
		container.Namespaces.Remove(libcontainer.NEWNET)
		return nil
	}

	container.Networks = []*libcontainer.Network{
		{
			Mtu:     c.Network.Mtu,
			Address: fmt.Sprintf("%s/%d", "127.0.0.1", 0),
			Gateway: "localhost",
			Type:    "loopback",
		},
	}

	if c.Network.Interface != nil {
		vethNetwork := libcontainer.Network{
			Mtu:        c.Network.Mtu,
			Address:    fmt.Sprintf("%s/%d", c.Network.Interface.IPAddress, c.Network.Interface.IPPrefixLen),
			MacAddress: c.Network.Interface.MacAddress,
			Gateway:    c.Network.Interface.Gateway,
			Type:       "veth",
			Bridge:     c.Network.Interface.Bridge,
			VethPrefix: "veth",
		}
		if c.Network.Interface.GlobalIPv6Address != "" {
			vethNetwork.IPv6Address = fmt.Sprintf("%s/%d", c.Network.Interface.GlobalIPv6Address, c.Network.Interface.GlobalIPv6PrefixLen)
			vethNetwork.IPv6Gateway = c.Network.Interface.IPv6Gateway
		}
		container.Networks = append(container.Networks, &vethNetwork)
	}

	if c.Network.ContainerID != "" {
		d.Lock()
		active := d.activeContainers[c.Network.ContainerID]
		d.Unlock()

		if active == nil || active.cmd.Process == nil {
			return fmt.Errorf("%s is not a valid running container to join", c.Network.ContainerID)
		}
		cmd := active.cmd

		nspath := filepath.Join("/proc", fmt.Sprint(cmd.Process.Pid), "ns", "net")
		container.Namespaces.Add(libcontainer.NEWNET, nspath)
	}

	return nil
}
Esempio n. 3
0
File: parse.go Progetto: 98pm/docker
func joinNetNamespace(container *libcontainer.Config, context interface{}, value string) error {
	var (
		running = context.(map[string]*exec.Cmd)
		cmd     = running[value]
	)

	if cmd == nil || cmd.Process == nil {
		return fmt.Errorf("%s is not a valid running container to join", value)
	}

	nspath := filepath.Join("/proc", fmt.Sprint(cmd.Process.Pid), "ns", "net")
	container.Networks = append(container.Networks, &libcontainer.Network{
		Type:   "netns",
		NsPath: nspath,
	})

	return nil
}