Exemple #1
0
func (d *driver) createNetwork(container *libcontainer.Container, 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",
			Context: libcontainer.Context{},
		},
	}

	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),
			Gateway: c.Network.Interface.Gateway,
			Type:    "veth",
			Context: libcontainer.Context{
				"prefix": "veth",
				"bridge": c.Network.Interface.Bridge,
			},
		}
		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.Networks = append(container.Networks, &libcontainer.Network{
			Type: "netns",
			Context: libcontainer.Context{
				"nspath": nspath,
			},
		})
	}
	return nil
}
Exemple #2
0
func joinNetNamespace(container *libcontainer.Container, 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",
		Context: libcontainer.Context{
			"nspath": nspath,
		},
	})
	return nil
}