Exemplo n.º 1
0
func (p *OVSPlugin) SetupOVSInterface(podName, podInfraContainerID string, port *ports.Port, ipcidr, gateway string, containerRuntime string) error {
	qvb, qvo := p.buildVethName(port.ID)
	ret, err := exec.RunCommand("ip", "link", "add", qvb, "type", "veth", "peer", "name", qvo)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	bridge := p.buildBridgeName(port.ID)
	ret, err = exec.RunCommand("brctl", "addbr", bridge)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", qvb, "up")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", qvo, "up")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", bridge, "up")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	ret, err = exec.RunCommand("brctl", "addif", bridge, qvb)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	ret, err = exec.RunCommand("ovs-vsctl", "-vconsole:off", "--", "--if-exists", "del-port",
		qvo, "--", "add-port", p.IntegrationBridage, qvo, "--", "set", "Interface", qvo,
		fmt.Sprintf("external_ids:attached-mac=%s", port.MACAddress),
		fmt.Sprintf("external_ids:iface-id=%s", port.ID),
		fmt.Sprintf("external_ids:vm-id=%s", podName),
		"external_ids:iface-status=active")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, containerRuntime)
		return err
	}

	return nil
}
Exemplo n.º 2
0
func (p *OVSPlugin) destroyDockerInterface(podName, podInfraContainerID, portID string) error {
	tapName, _ := p.buildTapName(portID)
	_, err := exec.RunCommand("ip", "link", "delete", tapName)
	if err != nil {
		glog.V(5).Infof("Warning: DestroyInterface failed: %v", err)
	}

	pid, err := exec.RunCommand("docker", "inspect", "-f", "'{{.State.Pid}}'", podInfraContainerID)
	if err != nil {
		glog.V(5).Infof("Warning: DestroyInterface failed: %v", err)
	}

	if pid != nil && len(pid) > 0 {
		netns := strings.Trim(pid[0], "'")
		_, err = exec.RunCommand("rm", "-f", fmt.Sprintf("/var/run/netns/%s", netns))
		if err != nil {
			glog.V(5).Infof("Warning: DestroyInterface failed: %v", err)
		}
	}

	return nil
}
Exemplo n.º 3
0
func (p *OVSPlugin) destroyOVSInterface(podName, podInfraContainerID, portID string) error {
	qvb, qvo := p.buildVethName(portID)
	bridge := p.buildBridgeName(portID)

	output, err := exec.RunCommand("brctl", "delif", bridge, qvb)
	if err != nil {
		glog.Warningf("Warning: brctl delif %s failed: %v, %v", qvb, output, err)
	}

	output, err = exec.RunCommand("ip", "link", "set", "dev", bridge, "down")
	if err != nil {
		glog.Warningf("Warning: set bridge %s down failed: %v, %v", bridge, output, err)
	}

	output, err = exec.RunCommand("brctl", "delbr", bridge)
	if err != nil {
		glog.Warningf("Warning: delete bridge %s failed: %v, %v", bridge, output, err)
	}

	output, err = exec.RunCommand("ovs-vsctl", "-vconsole:off", "--if-exists", "del-port", qvo)
	if err != nil {
		glog.Warningf("Warning: ovs del-port %s failed: %v, %v", qvo, output, err)
	}

	output, err = exec.RunCommand("ip", "link", "set", "dev", qvo, "down")
	if err != nil {
		glog.Warningf("Warning: set dev %s down failed: %v, %v", qvo, output, err)
	}

	output, err = exec.RunCommand("ip", "link", "delete", "dev", qvo)
	if err != nil {
		glog.Warningf("Warning: delete dev %s failed: %v, %v", qvo, output, err)
	}

	return nil
}
Exemplo n.º 4
0
func (p *OVSPlugin) SetupDockerInterface(podName, podInfraContainerID string, port *ports.Port, ipcidr, gateway string) error {
	tapName, vifName := p.buildTapName(port.ID)
	ret, err := exec.RunCommand("ip", "link", "add", tapName, "type", "veth", "peer", "name", vifName)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	bridge := p.buildBridgeName(port.ID)
	ret, err = exec.RunCommand("brctl", "addif", bridge, tapName)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", "dev", vifName, "address", port.MACAddress)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	pid, err := exec.RunCommand("docker", "inspect", "-f", "'{{.State.Pid}}'", podInfraContainerID)
	if err != nil {
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	netns := strings.Trim(pid[0], "'")
	ret, err = exec.RunCommand("ln", "-s", fmt.Sprintf("/proc/%s/ns/net", netns),
		fmt.Sprintf("/var/run/netns/%s", netns))
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", vifName, "netns", netns)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "link", "delete", "eth0")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "link", "set", vifName, "down")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "link", "set", vifName, "name", "eth0")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "link", "set", "eth0", "up")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "addr", "add", "dev", "eth0", ipcidr)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "netns", "exec", netns, "ip", "route", "add", "default", "via", gateway)
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	ret, err = exec.RunCommand("ip", "link", "set", "dev", tapName, "up")
	if err != nil {
		glog.Warningf("SetupInterface failed, ret:%s, error:%v", strings.Join(ret, "\n"), err)
		p.DestroyInterface(podName, podInfraContainerID, port, runtimeTypeDocker)
		return err
	}

	_, err = exec.RunCommand("rm", "-f", fmt.Sprintf("/var/run/netns/%s", netns))
	if err != nil {
		glog.V(5).Infof("Warning: remove netns symlink failed: %v", err)
	}

	return nil
}