forked from contiv/vpp
/
data_resync.go
158 lines (140 loc) · 3.89 KB
/
data_resync.go
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/*
* // Copyright (c) 2018 Cisco and/or its affiliates.
* //
* // 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 processor
import (
"fmt"
"strings"
"github.com/ligato/cn-infra/datasync"
"github.com/ligato/cn-infra/logging"
"github.com/contiv/vpp/plugins/contiv"
nodemodel "github.com/contiv/vpp/plugins/contiv/model/node"
epmodel "github.com/contiv/vpp/plugins/ksr/model/endpoints"
podmodel "github.com/contiv/vpp/plugins/ksr/model/pod"
svcmodel "github.com/contiv/vpp/plugins/ksr/model/service"
)
// ResyncEventData wraps an entire state of K8s services that should be reflected
// into VPP.
type ResyncEventData struct {
Nodes map[int]*nodemodel.NodeInfo
Pods []*podmodel.Pod
Endpoints []*epmodel.Endpoints
Services []*svcmodel.Service
}
// NewResyncEventData creates an empty instance of ResyncEventData.
func NewResyncEventData() *ResyncEventData {
return &ResyncEventData{
Nodes: make(map[int]*nodemodel.NodeInfo),
Pods: []*podmodel.Pod{},
Endpoints: []*epmodel.Endpoints{},
Services: []*svcmodel.Service{},
}
}
// String converts ResyncEventData into a human-readable string.
func (red ResyncEventData) String() string {
pods := ""
for idx, pod := range red.Pods {
pods += pod.String()
if idx < len(red.Pods)-1 {
pods += ", "
}
}
endpoints := ""
for idx, endpoint := range red.Endpoints {
endpoints += endpoint.String()
if idx < len(red.Endpoints)-1 {
endpoints += ", "
}
}
services := ""
for idx, service := range red.Services {
services += service.String()
if idx < len(red.Services)-1 {
services += ", "
}
}
return fmt.Sprintf("ResyncEventData <Nodes:%v Pods:[%s] Endpoint:[%s] Services:[%s]>",
red.Nodes, pods, endpoints, services)
}
func (sc *ServiceProcessor) parseResyncEv(resyncEv datasync.ResyncEvent) *ResyncEventData {
var (
numNodes int
numPod int
numEps int
numSvc int
err error
)
event := NewResyncEventData()
for key, resyncData := range resyncEv.GetValues() {
sc.Log.Debug("Received RESYNC key ", key)
for {
evData, stop := resyncData.GetNext()
if stop {
break
}
key := evData.GetKey()
// Parse node RESYNC event
if strings.HasPrefix(key, contiv.AllocatedIDsKeyPrefix) {
value := &nodemodel.NodeInfo{}
err := evData.GetValue(value)
if err == nil {
event.Nodes[int(value.Id)] = value
numNodes++
}
continue
}
// Parse pod RESYNC event
_, _, err = podmodel.ParsePodFromKey(key)
if err == nil {
value := &podmodel.Pod{}
err := evData.GetValue(value)
if err == nil {
event.Pods = append(event.Pods, value)
numPod++
}
continue
}
// Parse endpoints RESYNC event
_, _, err = epmodel.ParseEndpointsFromKey(key)
if err == nil {
value := &epmodel.Endpoints{}
err := evData.GetValue(value)
if err == nil {
event.Endpoints = append(event.Endpoints, value)
numEps++
}
continue
}
// Parse service RESYNC event
_, _, err = svcmodel.ParseServiceFromKey(key)
if err == nil {
value := &svcmodel.Service{}
err := evData.GetValue(value)
if err == nil {
event.Services = append(event.Services, value)
numSvc++
}
continue
}
}
}
sc.Log.WithFields(logging.Fields{
"num-nodes": numNodes,
"num-pods": numPod,
"num-endpoints": numEps,
"num-services": numSvc,
}).Debug("Parsed RESYNC event")
return event
}