NBI component:

- Deactivated metrics as no endpoint uses them and they cause "address already in use" when launching multiple `gunicorn` workers.

manifests/nbiservice.yaml

@@ -33,7 +33,10 @@ spec:
           imagePullPolicy: Always
           ports:
             - containerPort: 8080
-            - containerPort: 9192
+            # Metrics disabled for now. No NBI endpoint uses it and
+            # causes "address already in use" when deploying multiple
+            # gunicorn workers.
+            #- containerPort: 9192
           env:
             - name: LOG_LEVEL
               value: "INFO"
@@ -78,7 +81,10 @@ spec:
       protocol: TCP
       port: 8080
       targetPort: 8080
-    - name: metrics
-      protocol: TCP
-      port: 9192
-      targetPort: 9192
+    # Metrics disabled for now. No NBI endpoint uses it and
+    # causes "address already in use" when deploying multiple
+    # gunicorn workers.
+    #- name: metrics
+    #  protocol: TCP
+    #  port: 9192
+    #  targetPort: 9192

src/nbi/service/app.py

@@ -14,12 +14,23 @@
 
 import logging
 from typing import Optional
-from prometheus_client import start_http_server
+
+# NOTE: Metrics disabled for now. No NBI endpoint uses it and
+# causes "address already in use" when deploying multiple
+# gunicorn workers.
+#from prometheus_client import start_http_server
+
 from common.Constants import ServiceNameEnum
 from common.Settings import (
     ENVVAR_SUFIX_SERVICE_HOST, ENVVAR_SUFIX_SERVICE_PORT_GRPC,
     get_env_var_name, get_http_bind_address, get_log_level,
-    get_metrics_port, get_service_baseurl_http, get_service_port_http,
+
+    # NOTE: Metrics disabled for now. No NBI endpoint uses it and
+    # causes "address already in use" when deploying multiple
+    # gunicorn workers.
+    #get_metrics_port,
+
+    get_service_baseurl_http, get_service_port_http,
     wait_for_environment_variables
 )
 from .NbiApplication import NbiApplication
@@ -73,8 +84,11 @@ def configure_nbi(
     LOGGER.info('Starting...')
 
     # Start metrics server
-    metrics_port = get_metrics_port()
-    start_http_server(metrics_port)
+    # NOTE: Metrics disabled for now. No NBI endpoint uses it and
+    # causes "address already in use" when deploying multiple
+    # gunicorn workers.
+    #metrics_port = get_metrics_port()
+    #start_http_server(metrics_port)
 
     nbi_app = NbiApplication(base_url=base_url)
 
@@ -85,7 +99,7 @@ def configure_nbi(
 
     return nbi_app
 
-nbi_app = configure_nbi(base_url=BASE_URL)
+_nbi_app = configure_nbi(base_url=BASE_URL)
 
 if __name__ == '__main__':
     # Only used to run it locally during development stage;