b7466d02cd
Resolved issues with proxy rules taking a long time to be synced on Windows, by caching HNS data. In particular, the following HNS data will be cached for the context of syncProxyRules: * HNS endpoints * HNS load balancers
346 lines
10 KiB
Go
346 lines
10 KiB
Go
//go:build windows
|
|
// +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/hcn"
|
|
"k8s.io/klog/v2"
|
|
|
|
"strings"
|
|
)
|
|
|
|
type hnsV2 struct{}
|
|
|
|
var (
|
|
// LoadBalancerFlagsIPv6 enables IPV6.
|
|
LoadBalancerFlagsIPv6 hcn.LoadBalancerFlags = 2
|
|
)
|
|
|
|
func (hns hnsV2) getNetworkByName(name string) (*hnsNetworkInfo, error) {
|
|
hnsnetwork, err := hcn.GetNetworkByName(name)
|
|
if err != nil {
|
|
klog.ErrorS(err, "Error getting network by name")
|
|
return nil, err
|
|
}
|
|
|
|
var remoteSubnets []*remoteSubnetInfo
|
|
for _, policy := range hnsnetwork.Policies {
|
|
if policy.Type == hcn.RemoteSubnetRoute {
|
|
policySettings := hcn.RemoteSubnetRoutePolicySetting{}
|
|
err = json.Unmarshal(policy.Settings, &policySettings)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to unmarshal Remote Subnet policy settings")
|
|
}
|
|
rs := &remoteSubnetInfo{
|
|
destinationPrefix: policySettings.DestinationPrefix,
|
|
isolationID: policySettings.IsolationId,
|
|
providerAddress: policySettings.ProviderAddress,
|
|
drMacAddress: policySettings.DistributedRouterMacAddress,
|
|
}
|
|
remoteSubnets = append(remoteSubnets, rs)
|
|
}
|
|
}
|
|
|
|
return &hnsNetworkInfo{
|
|
id: hnsnetwork.Id,
|
|
name: hnsnetwork.Name,
|
|
networkType: string(hnsnetwork.Type),
|
|
remoteSubnets: remoteSubnets,
|
|
}, nil
|
|
}
|
|
|
|
func (hns hnsV2) getAllEndpointsByNetwork(networkName string) (map[string]*(endpointsInfo), error) {
|
|
hcnnetwork, err := hcn.GetNetworkByName(networkName)
|
|
if err != nil {
|
|
klog.ErrorS(err, "failed to get HNS network by name", "name", networkName)
|
|
return nil, err
|
|
}
|
|
endpoints, err := hcn.ListEndpointsOfNetwork(hcnnetwork.Id)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to list endpoints: %w", err)
|
|
}
|
|
endpointInfos := make(map[string]*(endpointsInfo))
|
|
for _, ep := range endpoints {
|
|
// Add to map with key endpoint ID or IP address
|
|
// Storing this is expensive in terms of memory, however there is a bug in Windows Server 2019 that can cause two endpoints to be created with the same IP address.
|
|
// TODO: Store by IP only and remove any lookups by endpoint ID.
|
|
endpointInfos[ep.Id] = &endpointsInfo{
|
|
ip: ep.IpConfigurations[0].IpAddress,
|
|
isLocal: uint32(ep.Flags&hcn.EndpointFlagsRemoteEndpoint) == 0,
|
|
macAddress: ep.MacAddress,
|
|
hnsID: ep.Id,
|
|
hns: hns,
|
|
// only ready and not terminating endpoints were added to HNS
|
|
ready: true,
|
|
serving: true,
|
|
terminating: false,
|
|
}
|
|
endpointInfos[ep.IpConfigurations[0].IpAddress] = endpointInfos[ep.Id]
|
|
}
|
|
klog.V(3).InfoS("Queried endpoints from network", "network", networkName)
|
|
return endpointInfos, nil
|
|
}
|
|
|
|
func (hns hnsV2) getEndpointByID(id string) (*endpointsInfo, error) {
|
|
hnsendpoint, err := hcn.GetEndpointByID(id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &endpointsInfo{ //TODO: fill out PA
|
|
ip: hnsendpoint.IpConfigurations[0].IpAddress,
|
|
isLocal: uint32(hnsendpoint.Flags&hcn.EndpointFlagsRemoteEndpoint) == 0, //TODO: Change isLocal to isRemote
|
|
macAddress: hnsendpoint.MacAddress,
|
|
hnsID: hnsendpoint.Id,
|
|
hns: hns,
|
|
}, nil
|
|
}
|
|
func (hns hnsV2) getEndpointByIpAddress(ip string, networkName string) (*endpointsInfo, error) {
|
|
hnsnetwork, err := hcn.GetNetworkByName(networkName)
|
|
if err != nil {
|
|
klog.ErrorS(err, "Error getting network by name")
|
|
return nil, err
|
|
}
|
|
|
|
endpoints, err := hcn.ListEndpoints()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to list endpoints: %w", err)
|
|
}
|
|
for _, endpoint := range endpoints {
|
|
equal := false
|
|
if endpoint.IpConfigurations != nil && len(endpoint.IpConfigurations) > 0 {
|
|
equal = endpoint.IpConfigurations[0].IpAddress == ip
|
|
|
|
if !equal && len(endpoint.IpConfigurations) > 1 {
|
|
equal = endpoint.IpConfigurations[1].IpAddress == ip
|
|
}
|
|
}
|
|
if equal && strings.EqualFold(endpoint.HostComputeNetwork, hnsnetwork.Id) {
|
|
return &endpointsInfo{
|
|
ip: ip,
|
|
isLocal: uint32(endpoint.Flags&hcn.EndpointFlagsRemoteEndpoint) == 0, //TODO: Change isLocal to isRemote
|
|
macAddress: endpoint.MacAddress,
|
|
hnsID: endpoint.Id,
|
|
hns: hns,
|
|
}, nil
|
|
}
|
|
}
|
|
return nil, fmt.Errorf("Endpoint %v not found on network %s", ip, networkName)
|
|
}
|
|
func (hns hnsV2) getEndpointByName(name string) (*endpointsInfo, error) {
|
|
hnsendpoint, err := hcn.GetEndpointByName(name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &endpointsInfo{ //TODO: fill out PA
|
|
ip: hnsendpoint.IpConfigurations[0].IpAddress,
|
|
isLocal: uint32(hnsendpoint.Flags&hcn.EndpointFlagsRemoteEndpoint) == 0, //TODO: Change isLocal to isRemote
|
|
macAddress: hnsendpoint.MacAddress,
|
|
hnsID: hnsendpoint.Id,
|
|
hns: hns,
|
|
}, nil
|
|
}
|
|
func (hns hnsV2) createEndpoint(ep *endpointsInfo, networkName string) (*endpointsInfo, error) {
|
|
hnsNetwork, err := hcn.GetNetworkByName(networkName)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var flags hcn.EndpointFlags
|
|
if !ep.isLocal {
|
|
flags |= hcn.EndpointFlagsRemoteEndpoint
|
|
}
|
|
ipConfig := &hcn.IpConfig{
|
|
IpAddress: ep.ip,
|
|
}
|
|
hnsEndpoint := &hcn.HostComputeEndpoint{
|
|
IpConfigurations: []hcn.IpConfig{*ipConfig},
|
|
MacAddress: ep.macAddress,
|
|
Flags: flags,
|
|
SchemaVersion: hcn.SchemaVersion{
|
|
Major: 2,
|
|
Minor: 0,
|
|
},
|
|
}
|
|
|
|
var createdEndpoint *hcn.HostComputeEndpoint
|
|
if !ep.isLocal {
|
|
if len(ep.providerAddress) != 0 {
|
|
policySettings := hcn.ProviderAddressEndpointPolicySetting{
|
|
ProviderAddress: ep.providerAddress,
|
|
}
|
|
policySettingsJson, err := json.Marshal(policySettings)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("PA Policy creation failed: %v", err)
|
|
}
|
|
paPolicy := hcn.EndpointPolicy{
|
|
Type: hcn.NetworkProviderAddress,
|
|
Settings: policySettingsJson,
|
|
}
|
|
hnsEndpoint.Policies = append(hnsEndpoint.Policies, paPolicy)
|
|
}
|
|
createdEndpoint, err = hnsNetwork.CreateRemoteEndpoint(hnsEndpoint)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
} else {
|
|
createdEndpoint, err = hnsNetwork.CreateEndpoint(hnsEndpoint)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return &endpointsInfo{
|
|
ip: createdEndpoint.IpConfigurations[0].IpAddress,
|
|
isLocal: uint32(createdEndpoint.Flags&hcn.EndpointFlagsRemoteEndpoint) == 0,
|
|
macAddress: createdEndpoint.MacAddress,
|
|
hnsID: createdEndpoint.Id,
|
|
providerAddress: ep.providerAddress, //TODO get from createdEndpoint
|
|
hns: hns,
|
|
}, nil
|
|
}
|
|
func (hns hnsV2) deleteEndpoint(hnsID string) error {
|
|
hnsendpoint, err := hcn.GetEndpointByID(hnsID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = hnsendpoint.Delete()
|
|
if err == nil {
|
|
klog.V(3).InfoS("Remote endpoint resource deleted", "hnsID", hnsID)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (hns hnsV2) getAllLoadBalancers() (map[loadBalancerIdentifier]*loadBalancerInfo, error) {
|
|
lbs, err := hcn.ListLoadBalancers()
|
|
var id loadBalancerIdentifier
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
loadBalancers := make(map[loadBalancerIdentifier]*(loadBalancerInfo))
|
|
for _, lb := range lbs {
|
|
portMap := lb.PortMappings[0]
|
|
if len(lb.FrontendVIPs) == 0 {
|
|
// Leave VIP uninitialized
|
|
id = loadBalancerIdentifier{protocol: uint16(portMap.Protocol), internalPort: portMap.InternalPort, externalPort: portMap.ExternalPort, endpointsCount: len(lb.HostComputeEndpoints)}
|
|
} else {
|
|
id = loadBalancerIdentifier{protocol: uint16(portMap.Protocol), internalPort: portMap.InternalPort, externalPort: portMap.ExternalPort, vip: lb.FrontendVIPs[0], endpointsCount: len(lb.HostComputeEndpoints)}
|
|
}
|
|
loadBalancers[id] = &loadBalancerInfo{
|
|
hnsID: lb.Id,
|
|
}
|
|
}
|
|
klog.V(3).InfoS("Queried load balancers", "count", len(lbs))
|
|
return loadBalancers, nil
|
|
}
|
|
|
|
func (hns hnsV2) getLoadBalancer(endpoints []endpointsInfo, flags loadBalancerFlags, sourceVip string, vip string, protocol uint16, internalPort uint16, externalPort uint16, previousLoadBalancers map[loadBalancerIdentifier]*loadBalancerInfo) (*loadBalancerInfo, error) {
|
|
var id loadBalancerIdentifier
|
|
vips := []string{}
|
|
if len(vip) > 0 {
|
|
id = loadBalancerIdentifier{protocol: protocol, internalPort: internalPort, externalPort: externalPort, vip: vip, endpointsCount: len(endpoints)}
|
|
vips = append(vips, vip)
|
|
} else {
|
|
id = loadBalancerIdentifier{protocol: protocol, internalPort: internalPort, externalPort: externalPort, endpointsCount: len(endpoints)}
|
|
}
|
|
|
|
if lb, found := previousLoadBalancers[id]; found {
|
|
klog.V(1).InfoS("Found cached Hns loadbalancer policy resource", "policies", lb)
|
|
return lb, nil
|
|
}
|
|
|
|
lbPortMappingFlags := hcn.LoadBalancerPortMappingFlagsNone
|
|
if flags.isILB {
|
|
lbPortMappingFlags |= hcn.LoadBalancerPortMappingFlagsILB
|
|
}
|
|
if flags.useMUX {
|
|
lbPortMappingFlags |= hcn.LoadBalancerPortMappingFlagsUseMux
|
|
}
|
|
if flags.preserveDIP {
|
|
lbPortMappingFlags |= hcn.LoadBalancerPortMappingFlagsPreserveDIP
|
|
}
|
|
if flags.localRoutedVIP {
|
|
lbPortMappingFlags |= hcn.LoadBalancerPortMappingFlagsLocalRoutedVIP
|
|
}
|
|
|
|
lbFlags := hcn.LoadBalancerFlagsNone
|
|
if flags.isDSR {
|
|
lbFlags |= hcn.LoadBalancerFlagsDSR
|
|
}
|
|
|
|
if flags.isIPv6 {
|
|
lbFlags |= LoadBalancerFlagsIPv6
|
|
}
|
|
|
|
lbDistributionType := hcn.LoadBalancerDistributionNone
|
|
|
|
if flags.sessionAffinity {
|
|
lbDistributionType = hcn.LoadBalancerDistributionSourceIP
|
|
}
|
|
|
|
loadBalancer := &hcn.HostComputeLoadBalancer{
|
|
SourceVIP: sourceVip,
|
|
PortMappings: []hcn.LoadBalancerPortMapping{
|
|
{
|
|
Protocol: uint32(protocol),
|
|
InternalPort: internalPort,
|
|
ExternalPort: externalPort,
|
|
DistributionType: lbDistributionType,
|
|
Flags: lbPortMappingFlags,
|
|
},
|
|
},
|
|
FrontendVIPs: vips,
|
|
SchemaVersion: hcn.SchemaVersion{
|
|
Major: 2,
|
|
Minor: 0,
|
|
},
|
|
Flags: lbFlags,
|
|
}
|
|
|
|
for _, ep := range endpoints {
|
|
loadBalancer.HostComputeEndpoints = append(loadBalancer.HostComputeEndpoints, ep.hnsID)
|
|
}
|
|
|
|
lb, err := loadBalancer.Create()
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
klog.V(1).InfoS("Created Hns loadbalancer policy resource", "loadBalancer", lb)
|
|
lbInfo := &loadBalancerInfo{
|
|
hnsID: lb.Id,
|
|
}
|
|
// Add to map of load balancers
|
|
previousLoadBalancers[id] = lbInfo
|
|
return lbInfo, err
|
|
}
|
|
|
|
func (hns hnsV2) deleteLoadBalancer(hnsID string) error {
|
|
lb, err := hcn.GetLoadBalancerByID(hnsID)
|
|
if err != nil {
|
|
// Return silently
|
|
return nil
|
|
}
|
|
|
|
err = lb.Delete()
|
|
return err
|
|
}
|