Vendoring libnetwork v0.8.0-dev.1

- Fixes docker/docker#16964
- Added maximum egress bandwidth qos for Windows

Signed-off-by: Madhu Venugopal <madhu@docker.com>

hack/vendor.sh

@@ -30,7 +30,7 @@ clone git github.com/RackSec/srslog 259aed10dfa74ea2961eddd1d9847619f6e98837
 clone git github.com/imdario/mergo 0.2.1
 
 #get libnetwork packages
-clone git github.com/docker/libnetwork v0.7.0-rc.6
+clone git github.com/docker/libnetwork v0.8.0-dev.1
 clone git github.com/armon/go-metrics eb0af217e5e9747e41dd5303755356b62d28e3ec
 clone git github.com/hashicorp/go-msgpack 71c2886f5a673a35f909803f38ece5810165097b
 clone git github.com/hashicorp/memberlist 9a1e242e454d2443df330bdd51a436d5a9058fc4

vendor/src/github.com/docker/libnetwork/CHANGELOG.md

@@ -1,12 +1,16 @@
 # Changelog
 
+## 0.8.0-dev.1 (2016-04-16)
+- Fixes docker/docker#16964
+- Added maximum egress bandwidth qos for Windows
+
 ## 0.7.0-rc.6 (2016-04-10)
 - Flush cached resolver socket on default gateway change
 
 ## 0.7.0-rc.5 (2016-04-08)
 - Persist ipam driver options
 - Fixes https://github.com/docker/libnetwork/issues/1087
-- Use go vet from go tool 
+- Use go vet from go tool
 - Godep update to pick up latest docker/docker packages
 - Validate remote driver response using docker plugins package method.
 
@@ -20,8 +24,8 @@
 ## 0.7.0-rc.2 (2016-04-05)
 - Fixes https://github.com/docker/libnetwork/issues/1070
 - Move IPAM resource initialization out of init()
-- Initialize overlay driver before network delete 
-- Fix the handling for default gateway Endpoint join/lean 
+- Initialize overlay driver before network delete
+- Fix the handling for default gateway Endpoint join/lean
 
 ## 0.7.0-rc.1 (2016-03-30)
 - Fixes https://github.com/docker/libnetwork/issues/985

vendor/src/github.com/docker/libnetwork/drivers/bridge/bridge.go

@@ -9,7 +9,6 @@ import (
 	"os/exec"
 	"path/filepath"
 	"strconv"
-	"strings"
 	"sync"
 	"syscall"
 
@@ -130,21 +129,6 @@ func newDriver() *driver {
 
 // Init registers a new instance of bridge driver
 func Init(dc driverapi.DriverCallback, config map[string]interface{}) error {
-	if _, err := os.Stat("/proc/sys/net/bridge"); err != nil {
-		if out, err := exec.Command("modprobe", "-va", "bridge", "br_netfilter").CombinedOutput(); err != nil {
-			logrus.Warnf("Running modprobe bridge br_netfilter failed with message: %s, error: %v", out, err)
-		}
-	}
-	if out, err := exec.Command("modprobe", "-va", "nf_nat").CombinedOutput(); err != nil {
-		logrus.Warnf("Running modprobe nf_nat failed with message: `%s`, error: %v", strings.TrimSpace(string(out)), err)
-	}
-	if out, err := exec.Command("modprobe", "-va", "xt_conntrack").CombinedOutput(); err != nil {
-		logrus.Warnf("Running modprobe xt_conntrack failed with message: `%s`, error: %v", strings.TrimSpace(string(out)), err)
-	}
-	if err := iptables.FirewalldInit(); err != nil {
-		logrus.Debugf("Fail to initialize firewalld: %v, using raw iptables instead", err)
-	}
-
 	d := newDriver()
 	if err := d.configure(config); err != nil {
 		return err
@@ -387,6 +371,11 @@ func (d *driver) configure(option map[string]interface{}) error {
 	}
 
 	if config.EnableIPTables {
+		if _, err := os.Stat("/proc/sys/net/bridge"); err != nil {
+			if out, err := exec.Command("modprobe", "-va", "bridge", "br_netfilter").CombinedOutput(); err != nil {
+				logrus.Warnf("Running modprobe bridge br_netfilter failed with message: %s, error: %v", out, err)
+			}
+		}
 		removeIPChains()
 		natChain, filterChain, isolationChain, err = setupIPChains(config)
 		if err != nil {

vendor/src/github.com/docker/libnetwork/drivers/windows/labels.go

@@ -12,4 +12,7 @@ const (
 
 	// Interface of the network
 	Interface = "com.docker.network.windowsshim.interface"
+
+	// QosPolicies of the endpoint
+	QosPolicies = "com.docker.endpoint.windowsshim.qospolicies"
 )

vendor/src/github.com/docker/libnetwork/drivers/windows/windows.go

@@ -42,6 +42,7 @@ type endpointConfiguration struct {
 	MacAddress   net.HardwareAddr
 	PortBindings []types.PortBinding
 	ExposedPorts []types.TransportPort
+	QosPolicies  []types.QosPolicy
 }
 
 type hnsEndpoint struct {
@@ -257,6 +258,26 @@ func (d *driver) DeleteNetwork(nid string) error {
 	return nil
 }
 
+func convertQosPolicies(qosPolicies []types.QosPolicy) ([]json.RawMessage, error) {
+	var qps []json.RawMessage
+
+	// Enumerate through the qos policies specified by the user and convert
+	// them into the internal structure matching the JSON blob that can be
+	// understood by the HCS.
+	for _, elem := range qosPolicies {
+		encodedPolicy, err := json.Marshal(hcsshim.QosPolicy{
+			Type: "QOS",
+			MaximumOutgoingBandwidthInBytes: elem.MaxEgressBandwidth,
+		})
+
+		if err != nil {
+			return nil, err
+		}
+		qps = append(qps, encodedPolicy)
+	}
+	return qps, nil
+}
+
 func convertPortBindings(portBindings []types.PortBinding) ([]json.RawMessage, error) {
 	var pbs []json.RawMessage
 
@@ -347,6 +368,14 @@ func parseEndpointOptions(epOptions map[string]interface{}) (*endpointConfigurat
 		}
 	}
 
+	if opt, ok := epOptions[QosPolicies]; ok {
+		if policies, ok := opt.([]types.QosPolicy); ok {
+			ec.QosPolicies = policies
+		} else {
+			return nil, fmt.Errorf("Invalid endpoint configuration")
+		}
+	}
+
 	return ec, nil
 }
 
@@ -375,11 +404,16 @@ func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
 	}
 
 	endpointStruct.Policies, err = convertPortBindings(ec.PortBindings)
-
 	if err != nil {
 		return err
 	}
 
+	qosPolicies, err := convertQosPolicies(ec.QosPolicies)
+	if err != nil {
+		return err
+	}
+	endpointStruct.Policies = append(endpointStruct.Policies, qosPolicies...)
+
 	configurationb, err := json.Marshal(endpointStruct)
 	if err != nil {
 		return err

vendor/src/github.com/docker/libnetwork/iptables/iptables.go

@@ -42,6 +42,8 @@ var (
 	bestEffortLock sync.Mutex
 	// ErrIptablesNotFound is returned when the rule is not found.
 	ErrIptablesNotFound = errors.New("Iptables not found")
+	probeOnce           sync.Once
+	firewalldOnce       sync.Once
 )
 
 // ChainInfo defines the iptables chain.
@@ -61,8 +63,25 @@ func (e ChainError) Error() string {
 	return fmt.Sprintf("Error iptables %s: %s", e.Chain, string(e.Output))
 }
 
+func probe() {
+	if out, err := exec.Command("modprobe", "-va", "nf_nat").CombinedOutput(); err != nil {
+		logrus.Warnf("Running modprobe nf_nat failed with message: `%s`, error: %v", strings.TrimSpace(string(out)), err)
+	}
+	if out, err := exec.Command("modprobe", "-va", "xt_conntrack").CombinedOutput(); err != nil {
+		logrus.Warnf("Running modprobe xt_conntrack failed with message: `%s`, error: %v", strings.TrimSpace(string(out)), err)
+	}
+}
+
+func initFirewalld() {
+	if err := FirewalldInit(); err != nil {
+		logrus.Debugf("Fail to initialize firewalld: %v, using raw iptables instead", err)
+	}
+}
+
 func initCheck() error {
 	if iptablesPath == "" {
+		probeOnce.Do(probe)
+		firewalldOnce.Do(initFirewalld)
 		path, err := exec.LookPath("iptables")
 		if err != nil {
 			return ErrIptablesNotFound

vendor/src/github.com/docker/libnetwork/types/types.go

@@ -12,6 +12,11 @@ import (
 // UUID represents a globally unique ID of various resources like network and endpoint
 type UUID string
 
+// QosPolicy represents a quality of service policy on an endpoint
+type QosPolicy struct {
+	MaxEgressBandwidth uint64
+}
+
 // TransportPort represent a local Layer 4 endpoint
 type TransportPort struct {
 	Proto Protocol