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Compute apmStats in the server. (#21067)
- Handle communicating with the trace-agent in the status package - Update the GUI to rende the apmStats using the informatoin from the server rather than using AJAX
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // Unless explicitly stated otherwise all files in this repository are licensed | ||
| // under the Apache License Version 2.0. | ||
| // This product includes software developed at Datadog (https://www.datadoghq.com/). | ||
| // Copyright 2016-present Datadog, Inc. | ||
|
|
||
| // Package apm fetch information about the apm agent. | ||
| // This will, in time, be migrated to the apm agent component. | ||
| package apm | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "net/http" | ||
| "sync" | ||
|
|
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| apiutil "github.com/DataDog/datadog-agent/pkg/api/util" | ||
| "github.com/DataDog/datadog-agent/pkg/config" | ||
| ) | ||
|
|
||
| // httpClients should be reused instead of created as needed. They keep cached TCP connections | ||
| // that may leak otherwise | ||
| var ( | ||
| httpClient *http.Client | ||
| clientInitOnce sync.Once | ||
| ) | ||
|
|
||
| func client() *http.Client { | ||
| clientInitOnce.Do(func() { | ||
| httpClient = apiutil.GetClient(false) | ||
| }) | ||
|
|
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| return httpClient | ||
| } | ||
|
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| // GetAPMStatus returns a set of key/value pairs summarizing the status of the trace-agent. | ||
| // If the status can not be obtained for any reason, the returned map will contain an "error" | ||
| // key with an explanation. | ||
| func GetAPMStatus() map[string]interface{} { | ||
| port := config.Datadog.GetInt("apm_config.debug.port") | ||
|
|
||
| c := client() | ||
| url := fmt.Sprintf("http://localhost:%d/debug/vars", port) | ||
| resp, err := apiutil.DoGet(c, url, apiutil.CloseConnection) | ||
| if err != nil { | ||
| return map[string]interface{}{ | ||
| "port": port, | ||
| "error": err.Error(), | ||
| } | ||
| } | ||
|
|
||
| status := make(map[string]interface{}) | ||
| if err := json.Unmarshal(resp, &status); err != nil { | ||
| return map[string]interface{}{ | ||
| "port": port, | ||
| "error": err.Error(), | ||
| } | ||
| } | ||
| return status | ||
| } |
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