| // Copyright Istio 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 proxy |
| |
| import ( |
| "context" |
| "encoding/json" |
| "fmt" |
| ) |
| |
| import ( |
| istioVersion "istio.io/pkg/version" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pilot/pkg/xds" |
| "github.com/apache/dubbo-go-pixiu/pkg/kube" |
| ) |
| |
| type sidecarSyncStatus struct { |
| // nolint: structcheck, unused |
| pilot string |
| xds.SyncStatus |
| } |
| |
| // GetProxyInfo retrieves infos of proxies that connect to the Istio control plane of specific revision. |
| func GetProxyInfo(kubeconfig, configContext, revision, istioNamespace string) (*[]istioVersion.ProxyInfo, error) { |
| kubeClient, err := kube.NewExtendedClient(kube.BuildClientCmd(kubeconfig, configContext), revision) |
| if err != nil { |
| return nil, err |
| } |
| // Ask Pilot for the Envoy sidecar sync status, which includes the sidecar version info |
| allSyncz, err := kubeClient.AllDiscoveryDo(context.TODO(), istioNamespace, "/debug/syncz") |
| if err != nil { |
| return nil, err |
| } |
| |
| pi := []istioVersion.ProxyInfo{} |
| for _, syncz := range allSyncz { |
| var sss []*sidecarSyncStatus |
| err = json.Unmarshal(syncz, &sss) |
| if err != nil { |
| return nil, err |
| } |
| |
| for _, ss := range sss { |
| pi = append(pi, istioVersion.ProxyInfo{ |
| ID: ss.ProxyID, |
| IstioVersion: ss.SyncStatus.IstioVersion, |
| }) |
| } |
| } |
| |
| return &pi, nil |
| } |
| |
| // GetIDsFromProxyInfo is a helper function to retrieve list of IDs from Proxy. |
| func GetIDsFromProxyInfo(kubeconfig, configContext, revision, istioNamespace string) ([]string, error) { |
| var IDs []string |
| pi, err := GetProxyInfo(kubeconfig, configContext, revision, istioNamespace) |
| if err != nil { |
| return IDs, fmt.Errorf("failed to get proxy infos: %v", err) |
| } |
| for _, pi := range *pi { |
| IDs = append(IDs, pi.ID) |
| } |
| return IDs, nil |
| } |