104 lines
2.1 KiB
Go
104 lines
2.1 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package troubleshoot
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"strings"
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envoy_admin_v3 "github.com/envoyproxy/go-control-plane/envoy/admin/v3"
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"google.golang.org/protobuf/encoding/protojson"
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)
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func (t *Troubleshoot) request(path string) ([]byte, error) {
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client := &http.Client{}
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url := fmt.Sprintf("http://%v:%s/%s", t.envoyAddr.IP, t.envoyAdminPort, path)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return nil, err
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}
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resp, err := client.Do(req.WithContext(context.Background()))
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if err != nil {
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return nil, err
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}
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if resp != nil {
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defer resp.Body.Close()
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}
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if resp != nil && resp.StatusCode == http.StatusNotFound {
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return nil, fmt.Errorf("ErrBackendNotMounted")
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}
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rawConfig, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return rawConfig, nil
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}
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func (t *Troubleshoot) GetEnvoyConfigDump() error {
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configDumpRaw, err := t.request("config_dump")
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if err != nil {
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return err
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}
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config := &envoy_admin_v3.ConfigDump{}
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unmarshal := &protojson.UnmarshalOptions{
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DiscardUnknown: true,
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}
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err = unmarshal.Unmarshal(configDumpRaw, config)
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if err != nil {
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return err
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}
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t.envoyConfigDump = config
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return nil
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}
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func envoyID(listenerName string) string {
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parts := strings.Split(listenerName, ":")
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if parts != nil || len(parts) > 0 {
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return parts[0]
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}
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return ""
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}
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func (t *Troubleshoot) parseClusters(clusters *envoy_admin_v3.Clusters) ([]string, error) {
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upstreams := []string{}
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for _, cs := range clusters.GetClusterStatuses() {
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if cs.Name == "local_app" || cs.Name == "local_agent" {
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continue
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}
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upstreams = append(upstreams, cs.GetName())
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}
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return upstreams, nil
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}
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func (t *Troubleshoot) getEnvoyClusters() error {
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clustersRaw, err := t.request("clusters?format=json")
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if err != nil {
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return err
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}
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clusters := &envoy_admin_v3.Clusters{}
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unmarshal := &protojson.UnmarshalOptions{
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DiscardUnknown: true,
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}
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err = unmarshal.Unmarshal(clustersRaw, clusters)
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if err != nil {
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return err
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}
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t.envoyClusters = clusters
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return nil
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}
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