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This PR added multicast statistics support for the following cases: - Supplements current networkpolicy statistics implementation by parsing multicast related flows, which can be displayed as kubectl get antreanetworkpolicystats multicast-networkpolicy-name. - Add a node-level antctl command antctl get multicaststats, showing inbound and outbound packet count for each pod interface. - Add an extra kubectl get multicastgroupmembers command. This command shows which pods have joined multicast group for the whole cluster. Signed-off-by: ceclinux <src655@gmail.com>
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2022 Antrea 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. | ||
|
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| package multicast | ||
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| import ( | ||
| "encoding/json" | ||
| "net/http" | ||
| "strconv" | ||
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| "antrea.io/antrea/pkg/agent/interfacestore" | ||
| "antrea.io/antrea/pkg/agent/multicast" | ||
| "antrea.io/antrea/pkg/agent/querier" | ||
| "antrea.io/antrea/pkg/antctl/transform/common" | ||
| "antrea.io/antrea/pkg/features" | ||
| ) | ||
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| type Response struct { | ||
| PodString string `json:"podString,omitempty"` | ||
| Inbound string `json:"inbound,omitempty"` | ||
| Outbound string `json:"outbound,omitempty"` | ||
| } | ||
|
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| func generateResponse(iface *interfacestore.InterfaceConfig, trafficStats *multicast.PodTrafficStats) Response { | ||
| return Response{ | ||
| PodString: iface.PodNamespace + "/" + iface.PodName, | ||
| Inbound: strconv.FormatInt(int64(trafficStats.Inbound), 10), | ||
| Outbound: strconv.FormatInt(int64(trafficStats.Outbound), 10), | ||
| } | ||
| } | ||
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| // HandleFunc returns the function which can handle queries issued by 'antctl get multicaststats' command. | ||
| // It will return per-pod multicast traffic statistics for the local node. | ||
| func HandleFunc(aq querier.AgentQuerier) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| if !features.DefaultFeatureGate.Enabled(features.Multicast) { | ||
| http.Error(w, "Multicast is not enabled", http.StatusServiceUnavailable) | ||
| return | ||
| } | ||
| stats := aq.GetMulticastInfoQuerier().GetPerPodStats() | ||
| responses := make([]Response, 0) | ||
| for iface, trafficStats := range stats { | ||
| if trafficStats.Inbound == 0 && trafficStats.Outbound == 0 { | ||
| continue | ||
| } | ||
| responses = append(responses, generateResponse(iface, trafficStats)) | ||
| } | ||
| err := json.NewEncoder(w).Encode(responses) | ||
| if err != nil { | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| } | ||
| } | ||
| } | ||
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| var _ common.TableOutput = new(Response) | ||
|
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| func (r Response) GetTableHeader() []string { | ||
| return []string{"POD", "INBOUND", "OUTBOUND"} | ||
| } | ||
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| func (r Response) GetTableRow(_ int) []string { | ||
| return []string{r.PodString, r.Inbound, r.Outbound} | ||
| } | ||
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| func (r Response) SortRows() bool { | ||
| return true | ||
| } |
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