Add diagnostics for sdk detection (#35610)

* Add diagnostics for sdk detection

* changelog

Author: jeremydvoss

sdk/monitor/azure-monitor-opentelemetry/CHANGELOG.md

@@ -4,6 +4,9 @@
 
 ### Features Added
 
+- Add diagnostics for sdk detection and backoff
+    ([#35610](https://github.com/Azure/azure-sdk-for-python/pull/35610))
+
 ### Breaking Changes
 
 ### Bugs Fixed

sdk/monitor/azure-monitor-opentelemetry/azure/monitor/opentelemetry/_diagnostics/diagnostic_logging.py

@@ -33,6 +33,7 @@
 _ATTACH_SUCCESS_CONFIGURATOR = "4201"
 _ATTACH_FAILURE_DISTRO = "4400"
 _ATTACH_FAILURE_CONFIGURATOR = "4401"
+_ATTACH_DETECTS_SDK = "4402"
 
 
 class AzureDiagnosticLogging:

sdk/monitor/azure-monitor-opentelemetry/azure/monitor/opentelemetry/_diagnostics/status_logger.py

@@ -27,7 +27,7 @@ def _get_status_logger_file_name(pid):
 class AzureStatusLogger:
     @classmethod
     def _get_status_json(
-        cls, agent_initialized_successfully, pid, reason=None
+        cls, agent_initialized_successfully, pid, reason=None, sdk_present=None
     ):
         status_json = {
             "AgentInitializedSuccessfully": agent_initialized_successfully,
@@ -40,14 +40,16 @@ def _get_status_json(
         }
         if reason:
             status_json["Reason"] = reason
+        if sdk_present:
+            status_json["SDKPresent"] = sdk_present
         return status_json
 
     @classmethod
-    def log_status(cls, agent_initialized_successfully, reason=None):
+    def log_status(cls, agent_initialized_successfully, reason=None, sdk_present=None):
         if _IS_DIAGNOSTICS_ENABLED and _STATUS_LOG_PATH:
             pid = getpid()
             status_json = AzureStatusLogger._get_status_json(
-                agent_initialized_successfully, pid, reason
+                agent_initialized_successfully, pid, reason, sdk_present
             )
             if not exists(_STATUS_LOG_PATH):
                 makedirs(_STATUS_LOG_PATH)

sdk/monitor/azure-monitor-opentelemetry/tests/diagnostics/test_status_logger.py

@@ -66,7 +66,7 @@ def set_up(file_path, is_diagnostics_enabled=True):
     ).start()
 
 
-def check_file_for_messages(agent_initialized_successfully, file_path, reason=None):
+def check_file_for_messages(agent_initialized_successfully, file_path, reason=None, sdk_present=None):
     with open(file_path, "r") as f:
         f.seek(0)
         json = loads(f.readline())
@@ -81,6 +81,10 @@ def check_file_for_messages(agent_initialized_successfully, file_path, reason=No
             assert json["Reason"] == reason
         else:
             assert "Reason" not in json
+        if sdk_present:
+            assert json["SDKPresent"] == sdk_present
+        else:
+            assert "SDKPresent" not in json
         assert not f.read()
 
 
@@ -110,6 +114,12 @@ def test_log_status_no_reason(self, temp_file_path):
         AzureStatusLogger.log_status(True)
         check_file_for_messages(True, temp_file_path)
 
+    def test_log_status_sdk_present(self, temp_file_path):
+        set_up(temp_file_path, is_diagnostics_enabled=True)
+        AzureStatusLogger.log_status(True, reason=MESSAGE1)
+        AzureStatusLogger.log_status(False, reason=MESSAGE2, sdk_present=True)
+        check_file_for_messages(agent_initialized_successfully=False, file_path=temp_file_path, reason=MESSAGE2, sdk_present=True)
+
     def test_disabled_log_status_success(self, temp_file_path):
         set_up(temp_file_path, is_diagnostics_enabled=False)
         AzureStatusLogger.log_status(False, MESSAGE1)
@@ -128,6 +138,12 @@ def test_disabled_log_status_no_reason(self, temp_file_path):
         AzureStatusLogger.log_status(True)
         check_file_is_empty(temp_file_path)
 
+    def test_disabled_log_status_sdk_present(self, temp_file_path):
+        set_up(temp_file_path, is_diagnostics_enabled=False)
+        AzureStatusLogger.log_status(True, reason=MESSAGE1)
+        AzureStatusLogger.log_status(False, reason=MESSAGE2, sdk_present=True)
+        check_file_is_empty(temp_file_path)
+
     @patch(
         "azure.monitor.opentelemetry._diagnostics.status_logger._MACHINE_NAME",
         TEST_MACHINE_NAME,