feat: add otel endpoint config (#22492)

api/.env.example

@@ -505,6 +505,8 @@ LOGIN_LOCKOUT_DURATION=86400
 
 # Enable OpenTelemetry
 ENABLE_OTEL=false
+OTLP_TRACE_ENDPOINT=
+OTLP_METRIC_ENDPOINT=
 OTLP_BASE_ENDPOINT=http://localhost:4318
 OTLP_API_KEY=
 OTEL_EXPORTER_OTLP_PROTOCOL=

api/configs/observability/otel/otel_config.py

@@ -12,6 +12,16 @@ class OTelConfig(BaseSettings):
         default=False,
     )
 
+    OTLP_TRACE_ENDPOINT: str = Field(
+        description="OTLP trace endpoint",
+        default="",
+    )
+
+    OTLP_METRIC_ENDPOINT: str = Field(
+        description="OTLP metric endpoint",
+        default="",
+    )
+
     OTLP_BASE_ENDPOINT: str = Field(
         description="OTLP base endpoint",
         default="http://localhost:4318",

api/extensions/ext_otel.py

@@ -193,13 +193,22 @@ def init_app(app: DifyApp):
                 insecure=True,
             )
         else:
+            headers = {"Authorization": f"Bearer {dify_config.OTLP_API_KEY}"} if dify_config.OTLP_API_KEY else None
+
+            trace_endpoint = dify_config.OTLP_TRACE_ENDPOINT
+            if not trace_endpoint:
+                trace_endpoint = dify_config.OTLP_BASE_ENDPOINT + "/v1/traces"
             exporter = HTTPSpanExporter(
-                endpoint=dify_config.OTLP_BASE_ENDPOINT + "/v1/traces",
-                headers={"Authorization": f"Bearer {dify_config.OTLP_API_KEY}"},
+                endpoint=trace_endpoint,
+                headers=headers,
             )
+
+            metric_endpoint = dify_config.OTLP_METRIC_ENDPOINT
+            if not metric_endpoint:
+                metric_endpoint = dify_config.OTLP_BASE_ENDPOINT + "/v1/traces"
             metric_exporter = HTTPMetricExporter(
-                endpoint=dify_config.OTLP_BASE_ENDPOINT + "/v1/metrics",
-                headers={"Authorization": f"Bearer {dify_config.OTLP_API_KEY}"},
+                endpoint=metric_endpoint,
+                headers=headers,
             )
     else:
         exporter = ConsoleSpanExporter()

docker/.env.example

@@ -1139,6 +1139,8 @@ PLUGIN_VOLCENGINE_TOS_REGION=
 # OTLP Collector Configuration
 # ------------------------------
 ENABLE_OTEL=false
+OTLP_TRACE_ENDPOINT=
+OTLP_METRIC_ENDPOINT=
 OTLP_BASE_ENDPOINT=http://localhost:4318
 OTLP_API_KEY=
 OTEL_EXPORTER_OTLP_PROTOCOL=

docker/docker-compose.yaml

@@ -506,6 +506,8 @@ x-shared-env: &shared-api-worker-env
   PLUGIN_VOLCENGINE_TOS_SECRET_KEY: ${PLUGIN_VOLCENGINE_TOS_SECRET_KEY:-}
   PLUGIN_VOLCENGINE_TOS_REGION: ${PLUGIN_VOLCENGINE_TOS_REGION:-}
   ENABLE_OTEL: ${ENABLE_OTEL:-false}
+  OTLP_TRACE_ENDPOINT: ${OTLP_TRACE_ENDPOINT:-}
+  OTLP_METRIC_ENDPOINT: ${OTLP_METRIC_ENDPOINT:-}
   OTLP_BASE_ENDPOINT: ${OTLP_BASE_ENDPOINT:-http://localhost:4318}
   OTLP_API_KEY: ${OTLP_API_KEY:-}
   OTEL_EXPORTER_OTLP_PROTOCOL: ${OTEL_EXPORTER_OTLP_PROTOCOL:-}