use "unknown-python-service" as default service name (#1438)

* use "unknown-python-service" as default service name closes #1425 * update changelog

Author: beniwohli

CHANGELOG.asciidoc

@@ -27,8 +27,8 @@ endif::[]
 //
 //
 [float]
-===== Bug fixes
-* fix AttributeError in sync instrumentation of httpx {pull}1423[1423]
+===== Features
+ * use "unknown-python-service" as default service name if no service name is configured {pull}1438[#1438]
 
 
 [[release-notes-6.x]]

docs/configuration.asciidoc

@@ -86,8 +86,8 @@ apm = ElasticAPM(app)
 
 [options="header"]
 |============
-| Environment | Django/Flask | Default | Example
-| `ELASTIC_APM_SERVICE_NAME` | `SERVICE_NAME` | `python_service` | `my-app`
+| Environment | Django/Flask | Default  | Example
+| `ELASTIC_APM_SERVICE_NAME` | `SERVICE_NAME` | `unknown-python-service` | `my-app`
 |============
 
 

elasticapm/conf/__init__.py

@@ -509,7 +509,10 @@ def copy(self):
 
 class Config(_ConfigBase):
  service_name = _ConfigValue(
- "SERVICE_NAME", validators=[RegexValidator("^[a-zA-Z0-9 _-]+$")], default="python_service", required=True
+ "SERVICE_NAME",
+ validators=[RegexValidator("^[a-zA-Z0-9 _-]+$")],
+ default="unknown-python-service",
+ required=True,
  )
  service_node_name = _ConfigValue("SERVICE_NODE_NAME")
  environment = _ConfigValue("ENVIRONMENT")