Improve readability of exceptions in build pipeline script (microsoft#357)

* Update manage_environment.py

* Update attach_compute.py

* Update attach_compute.py

* Update manage_environment.py

Co-authored-by: João Pedro Martins <[email protected]>

Author: Inevitable-Marzipan

ml_service/util/attach_compute.py

@@ -1,4 +1,5 @@
 
+import traceback
 from azureml.core import Workspace
 from azureml.core.compute import AmlCompute
 from azureml.core.compute import ComputeTarget
@@ -32,7 +33,7 @@ def get_compute(workspace: Workspace, compute_name: str, vm_size: str, for_batch
                 show_output=True, min_node_count=None, timeout_in_minutes=10
             )
         return compute_target
-    except ComputeTargetException as ex:
-        print(ex)
+    except ComputeTargetException:
+        traceback.print_exc()
         print("An error occurred trying to provision compute.")
         exit(1)

ml_service/util/manage_environment.py

@@ -1,5 +1,6 @@
 
 import os
+import traceback
 from azureml.core import Workspace, Environment
 from ml_service.util.env_variables import Env
 from azureml.core.runconfig import DEFAULT_CPU_IMAGE, DEFAULT_GPU_IMAGE
@@ -35,6 +36,6 @@ def get_environment(
         if restored_environment is not None:
             print(restored_environment)
         return restored_environment
-    except Exception as e:
-        print(e)
+    except Exception:
+        traceback.print_exc()
         exit(1)