Resolve "Improve common framework to identify deployed components"

Closes #198 (closed)

src/common/Settings.py

@@ -108,3 +108,21 @@ def get_grpc_grace_period():
 
 def get_http_bind_address():
     return get_setting(ENVVAR_HTTP_BIND_ADDRESS, default=DEFAULT_HTTP_BIND_ADDRESS)
+
+
+##### ----- Detect deployed microservices ----- #####
+
+def is_microservice_deployed(service_name : ServiceNameEnum) -> bool:
+    host_env_var_name = get_env_var_name(service_name, ENVVAR_SUFIX_SERVICE_HOST     )
+    port_env_var_name = get_env_var_name(service_name, ENVVAR_SUFIX_SERVICE_PORT_GRPC)
+    return (host_env_var_name in os.environ) and (port_env_var_name in os.environ)
+
+def is_deployed_bgpls     () -> bool: return is_microservice_deployed(ServiceNameEnum.BGPLS            )
+def is_deployed_e2e_orch  () -> bool: return is_microservice_deployed(ServiceNameEnum.E2EORCHESTRATOR  )
+def is_deployed_forecaster() -> bool: return is_microservice_deployed(ServiceNameEnum.FORECASTER       )
+def is_deployed_load_gen  () -> bool: return is_microservice_deployed(ServiceNameEnum.LOAD_GENERATOR   )
+def is_deployed_optical   () -> bool: return is_microservice_deployed(ServiceNameEnum.OPTICALCONTROLLER)
+def is_deployed_policy    () -> bool: return is_microservice_deployed(ServiceNameEnum.POLICY           )
+def is_deployed_qkd_app   () -> bool: return is_microservice_deployed(ServiceNameEnum.QKD_APP          )
+def is_deployed_slice     () -> bool: return is_microservice_deployed(ServiceNameEnum.SLICE            )
+def is_deployed_te        () -> bool: return is_microservice_deployed(ServiceNameEnum.TE               )