Skip to content
Permalink
Browse files

Merge pull request #1 from ksubrmnn/hns_test

HNS V1 interface
  • Loading branch information...
ksubrmnn committed Dec 19, 2018
2 parents f9e4a7b + 7f3f191 commit f8a4f9d595a62edf4eac35bddd391795ee26f0be
@@ -0,0 +1,212 @@
// +build windows

/*
Copyright 2018 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package winkernel

import (
"encoding/json"
"fmt"
"github.com/Microsoft/hcsshim"
"github.com/golang/glog"
"net"
"strings"
)

type HostNetworkService interface {
getNetworkByName(name string) (*hnsNetworkInfo, error)
getEndpointByID(id string) (*endpointsInfo, error)
getEndpointByIpAddress(ip string, networkName string) (*endpointsInfo, error)
createEndpoint(ep *endpointsInfo, networkName string) (*endpointsInfo, error)
deleteEndpoint(hnsID string) error
getLoadBalancer(endpoints []endpointsInfo, isILB bool, isDSR bool, sourceVip string, vip string, protocol uint16, internalPort uint16, externalPort uint16) (*loadBalancerInfo, error)
deleteLoadBalancer(hnsID string) error
}

// V1 HNS API
type hnsV1 struct{}

func (hns hnsV1) getNetworkByName(name string) (*hnsNetworkInfo, error) {
hnsnetwork, err := hcsshim.GetHNSNetworkByName(name)
if err != nil {
glog.Errorf("%v", err)
return nil, err
}

return &hnsNetworkInfo{
id: hnsnetwork.Id,
name: hnsnetwork.Name,
networkType: hnsnetwork.Type,
}, nil
}
func (hns hnsV1) getEndpointByID(id string) (*endpointsInfo, error) {
hnsendpoint, err := hcsshim.GetHNSEndpointByID(id)
if err != nil {
glog.Errorf("%v", err)
return nil, err
}
return &endpointsInfo{
ip: hnsendpoint.IPAddress.String(),
isLocal: !hnsendpoint.IsRemoteEndpoint, //TODO: Change isLocal to isRemote
macAddress: hnsendpoint.MacAddress,
hnsID: hnsendpoint.Id,
hns: hns,
}, nil
}
func (hns hnsV1) getEndpointByIpAddress(ip string, networkName string) (*endpointsInfo, error) {
hnsnetwork, err := hcsshim.GetHNSNetworkByName(networkName)
if err != nil {
glog.Errorf("%v", err)
return nil, err
}

endpoints, err := hcsshim.HNSListEndpointRequest()
for _, endpoint := range endpoints {
equal := endpoint.IPAddress.String() == ip
if equal && strings.EqualFold(endpoint.VirtualNetwork, hnsnetwork.Id) {
return &endpointsInfo{
ip: endpoint.IPAddress.String(),
isLocal: !endpoint.IsRemoteEndpoint,
macAddress: endpoint.MacAddress,
hnsID: endpoint.Id,
hns: hns,
}, nil
}
}

return nil, fmt.Errorf("Endpoint %v not found on network %s", ip, networkName)
}
func (hns hnsV1) createEndpoint(ep *endpointsInfo, networkName string) (*endpointsInfo, error) {
hnsNetwork, err := hcsshim.GetHNSNetworkByName(networkName)
if err != nil {
return nil, fmt.Errorf("Could not find network %s: %v", networkName, err)
}
hnsEndpoint := &hcsshim.HNSEndpoint{
MacAddress: ep.macAddress,
IPAddress: net.ParseIP(ep.ip),
}

var createdEndpoint *hcsshim.HNSEndpoint
if !ep.isLocal {
paPolicy := hcsshim.PaPolicy{
Type: hcsshim.PA,
PA: ep.providerAddress,
}
paPolicyJson, err := json.Marshal(paPolicy)
if err != nil {
return nil, fmt.Errorf("PA Policy creation failed: %v", err)
}
hnsEndpoint.Policies = append(hnsEndpoint.Policies, paPolicyJson)
createdEndpoint, err = hnsNetwork.CreateRemoteEndpoint(hnsEndpoint)
if err != nil {
return nil, fmt.Errorf("Remote endpoint creation failed: %v", err)
}
} else {
createdEndpoint, err = hnsNetwork.CreateEndpoint(hnsEndpoint)
if err != nil {
return nil, fmt.Errorf("Local endpoint creation failed: %v", err)
}
}
return &endpointsInfo{
ip: createdEndpoint.IPAddress.String(),
isLocal: createdEndpoint.IsRemoteEndpoint,
macAddress: createdEndpoint.MacAddress,
hnsID: createdEndpoint.Id,
providerAddress: ep.providerAddress, //TODO get from createdEndpoint
hns: hns,
}, nil
}
func (hns hnsV1) deleteEndpoint(hnsID string) error {
hnsendpoint, err := hcsshim.GetHNSEndpointByID(hnsID)
if err != nil {
return err
}
_, err = hnsendpoint.Delete()
glog.V(3).Infof("Remote endpoint resource deleted id %s", hnsID)
return err
}

func (hns hnsV1) getLoadBalancer(endpoints []endpointsInfo, isILB bool, isDSR bool, sourceVip string, vip string, protocol uint16, internalPort uint16, externalPort uint16) (*loadBalancerInfo, error) {
plists, err := hcsshim.HNSListPolicyListRequest()
if err != nil {
return nil, err
}

for _, plist := range plists {
if len(plist.EndpointReferences) != len(endpoints) {
continue
}
// Validate if input meets any of the policy lists
elbPolicy := hcsshim.ELBPolicy{}
if err = json.Unmarshal(plist.Policies[0], &elbPolicy); err != nil {
continue
}
if elbPolicy.Protocol == protocol && elbPolicy.InternalPort == internalPort && elbPolicy.ExternalPort == externalPort && elbPolicy.ILB == isILB {
if len(vip) > 0 {
if len(elbPolicy.VIPs) == 0 || elbPolicy.VIPs[0] != vip {
continue
}
}
LogJson(plist, "Found existing Hns loadbalancer policy resource", 1)
return &loadBalancerInfo{
hnsID: plist.ID,
}, err
}
}

var hnsEndpoints []hcsshim.HNSEndpoint
for _, ep := range endpoints {
endpoint, err := hcsshim.GetHNSEndpointByID(ep.hnsID)
if err != nil {
return nil, err
}
hnsEndpoints = append(hnsEndpoints, *endpoint)
}
lb, err := hcsshim.AddLoadBalancer(
hnsEndpoints,
isILB,
isDSR,
sourceVip,
vip,
protocol,
internalPort,
externalPort,
)

if err == nil {
LogJson(lb, "Hns loadbalancer policy resource", 1)
}
return &loadBalancerInfo{
hnsID: lb.ID,
}, err
}
func (hns hnsV1) deleteLoadBalancer(hnsID string) error {
if len(hnsID) == 0 {
// Return silently
return nil
}

// Cleanup HNS policies
hnsloadBalancer, err := hcsshim.GetPolicyListByID(hnsID)
if err != nil {
return err
}
LogJson(hnsloadBalancer, "Removing Policy", 2)

_, err = hnsloadBalancer.Delete()
return err
}
Oops, something went wrong.

0 comments on commit f8a4f9d

Please sign in to comment.
You can’t perform that action at this time.