AIP-8718 Allow disabling default cards; Allow card render failures

metaflow/plugins/aip/aip.py

@@ -173,6 +173,7 @@ def __init__(
         notify_on_success=None,
         sqs_url_on_error=None,
         sqs_role_arn_on_error=None,
+        add_default_card=False,
         **kwargs,
     ):
         """
@@ -204,6 +205,7 @@ def __init__(
         self.notify_on_success = notify_on_success
         self.sqs_url_on_error = sqs_url_on_error
         self.sqs_role_arn_on_error = sqs_role_arn_on_error
+        self.add_default_card = add_default_card
         self._client = None
         self._exit_handler_created = False
 
@@ -317,7 +319,7 @@ def _create_workflow_yaml(
         ).items():
             workflow["metadata"]["labels"][key] = value
 
-        KubeflowPipelines._add_archive_section_to_cards_artifacts(workflow)
+        KubeflowPipelines._update_cards_artifact_configs(workflow)
 
         if self._exit_handler_created:
             # replace entrypoint content with the exit handler handler content
@@ -422,14 +424,15 @@ def _create_workflow_yaml(
         return workflow
 
     @staticmethod
-    def _add_archive_section_to_cards_artifacts(workflow: dict):
+    def _update_cards_artifact_configs(workflow: dict):
         # Add "archive" none section to "-cards" artifacts because by default
         # they are tarred and hence not viewable in the Argo UI
         for template in workflow["spec"]["templates"]:
             if "outputs" in template and "artifacts" in template["outputs"]:
                 for artifact in template["outputs"]["artifacts"]:
                     if "-card" in artifact["name"]:
                         artifact["archive"] = {"none": {}}
+                        artifact["optional"] = True
 
     @staticmethod
     def _config_map(workflow_name: str, max_run_concurrency: int):
@@ -1407,6 +1410,8 @@ def _create_metaflow_step_op(
         preceding_component_inputs: List[str],
         preceding_component_outputs_dict: Dict[str, dsl.PipelineParam],
     ) -> ContainerOp:
+        card_decos = [deco for deco in node.decorators if deco.name == "card"]
+
         # TODO (hariharans): https://zbrt.atl.zillow.net/browse/AIP-5406
         #   (Title: Clean up output formatting of workflow and pod specs in container op)
         # double json.dumps() to ensure we have the correct quotation marks
@@ -1448,6 +1453,10 @@ def _create_metaflow_step_op(
             metaflow_execution_cmd += " --is_split_index"
         if node.type == "join":
             metaflow_execution_cmd += " --is-join-step"
+        if self.add_default_card:
+            metaflow_execution_cmd += " --add-default-card"
+        if not card_decos:
+            metaflow_execution_cmd += " --skip-card-artifacts"
 
         metaflow_execution_cmd += ' --preceding_component_outputs_dict "'
         for key in preceding_component_outputs_dict:
@@ -1476,13 +1485,9 @@ def _create_metaflow_step_op(
         )
 
         file_outputs: Dict[str, str] = {
-            "card": "/tmp/outputs/cards/card.html",
+            f"card-{i}": f"/tmp/outputs/cards/card-{i}.html"
+            for i in range(len(card_decos))
         }
-        i = 1  # the default card would be i == 0
-        for deco in node.decorators:
-            if deco.name == "card":
-                file_outputs[f"card{i}"] = f"/tmp/outputs/cards/card{i}.html"
-                i = i + 1
 
         if node.type == "foreach":
             file_outputs["foreach_splits"] = "/tmp/outputs/foreach_splits/data"

metaflow/plugins/aip/aip_cli.py

@@ -260,6 +260,14 @@ def cli_decorator(func: Callable):
             "If not set, the default iam role associated with the pod will be used",
             show_default=True,
         )
+        @click.option(
+            "--add-default-card",
+            "add_default_card",
+            default=from_conf("METAFLOW_AIP_ADD_DEFAULT_CARD", default=True),
+            type=bool,
+            help="Whether to add default card to all workflow steps",
+            show_default=True,
+        )
         @functools.wraps(func)
         def wrapper_common_options(*args, **kwargs):
             return func(*args, **kwargs)
@@ -323,6 +331,7 @@ def run(
     sqs_role_arn_on_error=None,
     argo_wait=False,
     wait_for_completion_timeout=None,
+    add_default_card=True,
     **kwargs,
 ):
     """
@@ -353,6 +362,7 @@ def run(
         notify_on_success=notify_on_success,
         sqs_url_on_error=sqs_url_on_error,
         sqs_role_arn_on_error=sqs_role_arn_on_error,
+        add_default_card=add_default_card,
     )
 
     if yaml_only:
@@ -516,6 +526,7 @@ def create(
     recurring_run_enable=None,
     recurring_run_cron=None,
     recurring_run_concurrency=None,
+    add_default_card=True,
     **kwargs,
 ):
     """
@@ -549,6 +560,7 @@ def create(
         notify_on_success=notify_on_success,
         sqs_url_on_error=sqs_url_on_error,
         sqs_role_arn_on_error=sqs_role_arn_on_error,
+        add_default_card=add_default_card,
     )
 
     if yaml_only:
@@ -669,6 +681,7 @@ def make_flow(
     notify_on_success,
     sqs_url_on_error,
     sqs_role_arn_on_error,
+    add_default_card,
 ):
     """
     Analogous to step_functions_cli.py
@@ -682,6 +695,9 @@ def make_flow(
 
     # Attach AIP decorator to the flow
     decorators._attach_decorators(obj.flow, [AIPInternalDecorator.name])
+    if add_default_card:
+        decorators._attach_decorators(obj.flow, ["card:id=default"])
+
     decorators._init_step_decorators(
         obj.flow, obj.graph, obj.environment, obj.flow_datastore, obj.logger
     )
@@ -725,4 +741,5 @@ def make_flow(
         notify_on_success=notify_on_success,
         sqs_url_on_error=sqs_url_on_error,
         sqs_role_arn_on_error=sqs_role_arn_on_error,
+        add_default_card=add_default_card,
     )

metaflow/plugins/aip/aip_metaflow_step.py

@@ -25,6 +25,7 @@
     AIP_JOIN_METAFLOW_S3OP_NUM_WORKERS,
 )
 from metaflow.plugins.cards.card_client import get_cards, Card
+from metaflow.plugins.cards.exception import CardNotPresentException
 from ... import R, metaflow_version
 
 
@@ -35,23 +36,49 @@ def _write_card_artifacts(
     passed_in_split_indexes: str,
     run_id: str,
 ):
+    """
+    Pull card artifacts from datastore and add them to the Argo artifact output path.
+    Cards should already be uploaded to the datastore as part of the @card decorator.
+    No exception is thrown: cards are available to view through Metaflow UI or CLI even if this function fails.
+    """
+
     task_id_template: str = f"{task_id}.{passed_in_split_indexes}".strip(".")
     pathspec = f"{flow_name}/{run_id}/{step_name}/{task_id_template}"
 
-    cards: List[Card] = list(get_cards(pathspec))
+    retry_limit = 3
+    cards: List[Card] = []
+    for attempt in range(retry_limit):
+        try:
+            cards: List[Card] = list(get_cards(pathspec))
+        except:
+            if attempt == retry_limit - 1:  # Last attempt failed
+                logging.exception(
+                    f"Failed to get cards from Metaflow backend for pathspec {pathspec}"
+                    "Please view cards through Metaflow UI, or refer to https://docs.metaflow.org/metaflow/visualizing-results/effortless-task-inspection-with-default-cards#accessing-cards-via-an-api"
+                )
+            continue
+        break
+
+    if not cards:
+        return
+
     # sort such that the default card is first
     sorted_cards = sorted(
         cards, key=lambda card: (card.type != "default", cards.index(card))
     )
 
-    i = 0
     pathlib.Path("/tmp/outputs/cards/").mkdir(parents=True, exist_ok=True)
-    for card in sorted_cards:
-        iter_name = "" if i == 0 else i
-        file_name = f"/tmp/outputs/cards/card{iter_name}.html"
-        with open(file_name, "w") as card_file:
-            card_file.write(card.get())
-        i = i + 1
+    for index, card in enumerate(sorted_cards):
+        file_name = f"/tmp/outputs/cards/card-{index}.html"
+        try:
+            with open(file_name, "w") as card_file:
+                card_file.write(card.get())
+        except Exception:
+            logging.exception(
+                f"Failed to write card {index} of type {card.type} to Argo artifact output."
+                "Please view cards through Metaflow UI, or refer to https://docs.metaflow.org/metaflow/visualizing-results/effortless-task-inspection-with-default-cards#accessing-cards-via-an-api"
+            )
+            raise
 
 
 def _step_cli(
@@ -68,6 +95,7 @@ def _step_cli(
     max_user_code_retries: int,
     workflow_name: str,
     script_name: str,
+    add_default_card: bool,
 ) -> str:
     """
     Analogous to step_functions.py
@@ -165,7 +193,7 @@ def _step_cli(
 
     step: List[str] = [
         "--with=aip",
-        "--with 'card:id=default'",
+        "--with 'card:id=default'" if add_default_card else "",
         "step",
         step_name,
         "--run-id %s" % run_id,
@@ -275,6 +303,8 @@ def _command(
 @click.option("--workflow_name")
 @click.option("--is-interruptible/--not-interruptible", default=False)
 @click.option("--is-join-step", is_flag=True, default=False)
+@click.option("--add-default-card", is_flag=True, default=False)
+@click.option("--skip-card-artifacts", is_flag=True, default=False)
 def aip_metaflow_step(
     volume_dir: str,
     environment: str,
@@ -300,6 +330,8 @@ def aip_metaflow_step(
     workflow_name: str,
     is_interruptible: bool,
     is_join_step: bool,
+    add_default_card: bool,
+    skip_card_artifacts: bool,
 ) -> None:
     """
     (1) Renders and runs the Metaflow package_commands and Metaflow step
@@ -331,6 +363,7 @@ def aip_metaflow_step(
         user_code_retries,
         workflow_name,
         script_name,
+        add_default_card,
     )
 
     # expose passed KFP passed in arguments as environment variables to
@@ -385,8 +418,7 @@ def aip_metaflow_step(
         env["METAFLOW_PARAMETERS"] = flow_parameters_json
 
     # TODO: Map username to KFP specific user/profile/namespace
-    # Running Metaflow
-    # KFP orchestrator -> running MF runtime (runs user code, handles state)
+    # Running Metaflow runtime (runs user code, handles state)
     with Popen(
         cmd, shell=True, universal_newlines=True, executable="/bin/bash", env=env
     ) as process:
@@ -435,14 +467,15 @@ def aip_metaflow_step(
         with open(output_file, "w") as f:
             f.write(str(values[idx]))
 
-    # get card and write to output file
-    _write_card_artifacts(
-        flow_name,
-        step_name,
-        task_id,
-        passed_in_split_indexes,
-        metaflow_run_id,
-    )
+    # Write card manifest (html) to Argo output artifact path.
+    if not skip_card_artifacts:
+        _write_card_artifacts(
+            flow_name,
+            step_name,
+            task_id,
+            passed_in_split_indexes,
+            metaflow_run_id,
+        )
 
 
 if __name__ == "__main__":