• Home
• Module code
• airflow.providers.amazon.aws.operators.emr

Source code for airflow.providers.amazon.aws.operators.emr

#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations

import ast
import warnings
from typing import TYPE_CHECKING, Any, Sequence
from uuid import uuid4

from airflow.exceptions import AirflowException
from airflow.models import BaseOperator
from airflow.providers.amazon.aws.hooks.emr import EmrContainerHook, EmrHook, EmrServerlessHook
from airflow.providers.amazon.aws.links.emr import EmrClusterLink
from airflow.providers.amazon.aws.utils.waiter import waiter
from airflow.utils.helpers import exactly_one

if TYPE_CHECKING:
    from airflow.utils.context import Context

from airflow.compat.functools import cached_property


class EmrAddStepsOperator(BaseOperator):
    """
    An operator that adds steps to an existing EMR job_flow.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrAddStepsOperator`

    :param job_flow_id: id of the JobFlow to add steps to. (templated)
    :param job_flow_name: name of the JobFlow to add steps to. Use as an alternative to passing
        job_flow_id. will search for id of JobFlow with matching name in one of the states in
        param cluster_states. Exactly one cluster like this should exist or will fail. (templated)
    :param cluster_states: Acceptable cluster states when searching for JobFlow id by job_flow_name.
        (templated)
    :param aws_conn_id: aws connection to uses
    :param steps: boto3 style steps or reference to a steps file (must be '.json') to
        be added to the jobflow. (templated)
    :param wait_for_completion: If True, the operator will wait for all the steps to be completed.
    :param execution_role_arn: The ARN of the runtime role for a step on the cluster.
    :param do_xcom_push: if True, job_flow_id is pushed to XCom with key job_flow_id.
    """

    template_fields: Sequence[str] = (
        "job_flow_id",
        "job_flow_name",
        "cluster_states",
        "steps",
        "execution_role_arn",
    )
    template_ext: Sequence[str] = (".json",)
    template_fields_renderers = {"steps": "json"}
    ui_color = "#f9c915"
    operator_extra_links = (EmrClusterLink(),)

    def __init__(
        self,
        *,
        job_flow_id: str | None = None,
        job_flow_name: str | None = None,
        cluster_states: list[str] | None = None,
        aws_conn_id: str = "aws_default",
        steps: list[dict] | str | None = None,
        wait_for_completion: bool = False,
        execution_role_arn: str | None = None,
        **kwargs,
    ):
        if not exactly_one(job_flow_id is None, job_flow_name is None):
            raise AirflowException("Exactly one of job_flow_id or job_flow_name must be specified.")
        super().__init__(**kwargs)
        cluster_states = cluster_states or []
        steps = steps or []
        self.aws_conn_id = aws_conn_id
        self.job_flow_id = job_flow_id
        self.job_flow_name = job_flow_name
        self.cluster_states = cluster_states
        self.steps = steps
        self.wait_for_completion = wait_for_completion
        self.execution_role_arn = execution_role_arn

    def execute(self, context: Context) -> list[str]:
        emr_hook = EmrHook(aws_conn_id=self.aws_conn_id)

        job_flow_id = self.job_flow_id or emr_hook.get_cluster_id_by_name(
            str(self.job_flow_name), self.cluster_states
        )

        if not job_flow_id:
            raise AirflowException(f"No cluster found for name: {self.job_flow_name}")

        if self.do_xcom_push:
            context["ti"].xcom_push(key="job_flow_id", value=job_flow_id)

        EmrClusterLink.persist(
            context=context,
            operator=self,
            region_name=emr_hook.conn_region_name,
            aws_partition=emr_hook.conn_partition,
            job_flow_id=job_flow_id,
        )

        self.log.info("Adding steps to %s", job_flow_id)

        # steps may arrive as a string representing a list
        # e.g. if we used XCom or a file then: steps="[{ step1 }, { step2 }]"
        steps = self.steps
        if isinstance(steps, str):
            steps = ast.literal_eval(steps)
        return emr_hook.add_job_flow_steps(
            job_flow_id=job_flow_id,
            steps=steps,
            wait_for_completion=self.wait_for_completion,
            execution_role_arn=self.execution_role_arn,
        )


class EmrStartNotebookExecutionOperator(BaseOperator):
    """
    An operator that starts an EMR notebook execution.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrStartNotebookExecutionOperator`

    :param editor_id: The unique identifier of the EMR notebook to use for notebook execution.
    :param relative_path: The path and file name of the notebook file for this execution,
        relative to the path specified for the EMR notebook.
    :param cluster_id: The unique identifier of the EMR cluster the notebook is attached to.
    :param service_role: The name or ARN of the IAM role that is used as the service role
        for Amazon EMR (the EMR role) for the notebook execution.
    :param notebook_execution_name: Optional name for the notebook execution.
    :param notebook_params: Input parameters in JSON format passed to the EMR notebook at
        runtime for execution.
    :param: notebook_instance_security_group_id: The unique identifier of the Amazon EC2
        security group to associate with the EMR notebook for this notebook execution.
    :param: master_instance_security_group_id: Optional unique ID of an EC2 security
        group to associate with the master instance of the EMR cluster for this notebook execution.
    :param tags: Optional list of key value pair to associate with the notebook execution.
    :param waiter_countdown: Total amount of time the operator will wait for the notebook to stop.
        Defaults to 25 * 60 seconds.
    :param waiter_check_interval_seconds: Number of seconds between polling the state of the notebook.
        Defaults to 60 seconds.
    """

    template_fields: Sequence[str] = (
        "editor_id",
        "cluster_id",
        "relative_path",
        "service_role",
        "notebook_execution_name",
        "notebook_params",
        "notebook_instance_security_group_id",
        "master_instance_security_group_id",
        "tags",
    )

    def __init__(
        self,
        editor_id: str,
        relative_path: str,
        cluster_id: str,
        service_role: str,
        notebook_execution_name: str | None = None,
        notebook_params: str | None = None,
        notebook_instance_security_group_id: str | None = None,
        master_instance_security_group_id: str | None = None,
        tags: list | None = None,
        wait_for_completion: bool = False,
        aws_conn_id: str = "aws_default",
        waiter_countdown: int = 25 * 60,
        waiter_check_interval_seconds: int = 60,
        **kwargs: Any,
    ):
        super().__init__(**kwargs)
        self.editor_id = editor_id
        self.relative_path = relative_path
        self.service_role = service_role
        self.notebook_execution_name = notebook_execution_name or f"emr_notebook_{uuid4()}"
        self.notebook_params = notebook_params or ""
        self.notebook_instance_security_group_id = notebook_instance_security_group_id or ""
        self.tags = tags or []
        self.wait_for_completion = wait_for_completion
        self.cluster_id = cluster_id
        self.aws_conn_id = aws_conn_id
        self.waiter_countdown = waiter_countdown
        self.waiter_check_interval_seconds = waiter_check_interval_seconds
        self.master_instance_security_group_id = master_instance_security_group_id

    def execute(self, context: Context):
        execution_engine = {
            "Id": self.cluster_id,
            "Type": "EMR",
            "MasterInstanceSecurityGroupId": self.master_instance_security_group_id or "",
        }
        emr_hook = EmrHook(aws_conn_id=self.aws_conn_id)

        response = emr_hook.conn.start_notebook_execution(
            EditorId=self.editor_id,
            RelativePath=self.relative_path,
            NotebookExecutionName=self.notebook_execution_name,
            NotebookParams=self.notebook_params,
            ExecutionEngine=execution_engine,
            ServiceRole=self.service_role,
            NotebookInstanceSecurityGroupId=self.notebook_instance_security_group_id,
            Tags=self.tags,
        )

        if response["ResponseMetadata"]["HTTPStatusCode"] != 200:
            raise AirflowException(f"Starting notebook execution failed: {response}")

        self.log.info("Notebook execution started: %s", response["NotebookExecutionId"])
        notebook_execution_id = response["NotebookExecutionId"]
        if self.wait_for_completion:
            waiter(
                get_state_callable=emr_hook.conn.describe_notebook_execution,
                get_state_args={"NotebookExecutionId": notebook_execution_id},
                parse_response=["NotebookExecution", "Status"],
                desired_state={"RUNNING", "FINISHED"},
                failure_states={"FAILED"},
                object_type="notebook execution",
                action="starting",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )
        return notebook_execution_id


class EmrStopNotebookExecutionOperator(BaseOperator):
    """
    An operator that stops a running EMR notebook execution.

     .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrStopNotebookExecutionOperator`

    :param notebook_execution_id: The unique identifier of the notebook execution.
    :param wait_for_completion: If True, the operator will wait for the notebook.
        to be in a STOPPED or FINISHED state. Defaults to False.
    :param aws_conn_id: aws connection to use.
    :param waiter_countdown: Total amount of time the operator will wait for the notebook to stop.
        Defaults to 25 * 60 seconds.
    :param waiter_check_interval_seconds: Number of seconds between polling the state of the notebook.
        Defaults to 60 seconds.
    """

    template_fields: Sequence[str] = ("notebook_execution_id",)

    def __init__(
        self,
        notebook_execution_id: str,
        wait_for_completion: bool = False,
        aws_conn_id: str = "aws_default",
        waiter_countdown: int = 25 * 60,
        waiter_check_interval_seconds: int = 60,
        **kwargs: Any,
    ):
        super().__init__(**kwargs)
        self.notebook_execution_id = notebook_execution_id
        self.wait_for_completion = wait_for_completion
        self.aws_conn_id = aws_conn_id
        self.waiter_countdown = waiter_countdown
        self.waiter_check_interval_seconds = waiter_check_interval_seconds

    def execute(self, context: Context) -> None:
        emr_hook = EmrHook(aws_conn_id=self.aws_conn_id)
        emr_hook.conn.stop_notebook_execution(NotebookExecutionId=self.notebook_execution_id)

        if self.wait_for_completion:
            waiter(
                get_state_callable=emr_hook.conn.describe_notebook_execution,
                get_state_args={"NotebookExecutionId": self.notebook_execution_id},
                parse_response=["NotebookExecution", "Status"],
                desired_state={"STOPPED", "FINISHED"},
                failure_states={"FAILED"},
                object_type="notebook execution",
                action="stopped",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )


class EmrEksCreateClusterOperator(BaseOperator):
    """
    An operator that creates EMR on EKS virtual clusters.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrEksCreateClusterOperator`

    :param virtual_cluster_name: The name of the EMR EKS virtual cluster to create.
    :param eks_cluster_name: The EKS cluster used by the EMR virtual cluster.
    :param eks_namespace: namespace used by the EKS cluster.
    :param virtual_cluster_id: The EMR on EKS virtual cluster id.
    :param aws_conn_id: The Airflow connection used for AWS credentials.
    :param tags: The tags assigned to created cluster.
        Defaults to None
    """

    template_fields: Sequence[str] = (
        "virtual_cluster_name",
        "eks_cluster_name",
        "eks_namespace",
    )
    ui_color = "#f9c915"

    def __init__(
        self,
        *,
        virtual_cluster_name: str,
        eks_cluster_name: str,
        eks_namespace: str,
        virtual_cluster_id: str = "",
        aws_conn_id: str = "aws_default",
        tags: dict | None = None,
        **kwargs: Any,
    ) -> None:
        super().__init__(**kwargs)
        self.virtual_cluster_name = virtual_cluster_name
        self.eks_cluster_name = eks_cluster_name
        self.eks_namespace = eks_namespace
        self.virtual_cluster_id = virtual_cluster_id
        self.aws_conn_id = aws_conn_id
        self.tags = tags

    @cached_property
    def hook(self) -> EmrContainerHook:
        """Create and return an EmrContainerHook."""
        return EmrContainerHook(self.aws_conn_id)

    def execute(self, context: Context) -> str | None:
        """Create EMR on EKS virtual Cluster"""
        self.virtual_cluster_id = self.hook.create_emr_on_eks_cluster(
            self.virtual_cluster_name, self.eks_cluster_name, self.eks_namespace, self.tags
        )
        return self.virtual_cluster_id


class EmrContainerOperator(BaseOperator):
    """
    An operator that submits jobs to EMR on EKS virtual clusters.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrContainerOperator`

    :param name: The name of the job run.
    :param virtual_cluster_id: The EMR on EKS virtual cluster ID
    :param execution_role_arn: The IAM role ARN associated with the job run.
    :param release_label: The Amazon EMR release version to use for the job run.
    :param job_driver: Job configuration details, e.g. the Spark job parameters.
    :param configuration_overrides: The configuration overrides for the job run,
        specifically either application configuration or monitoring configuration.
    :param client_request_token: The client idempotency token of the job run request.
        Use this if you want to specify a unique ID to prevent two jobs from getting started.
        If no token is provided, a UUIDv4 token will be generated for you.
    :param aws_conn_id: The Airflow connection used for AWS credentials.
    :param wait_for_completion: Whether or not to wait in the operator for the job to complete.
    :param poll_interval: Time (in seconds) to wait between two consecutive calls to check query status on EMR
    :param max_tries: Deprecated - use max_polling_attempts instead.
    :param max_polling_attempts: Maximum number of times to wait for the job run to finish.
        Defaults to None, which will poll until the job is *not* in a pending, submitted, or running state.
    :param tags: The tags assigned to job runs.
        Defaults to None
    """

    template_fields: Sequence[str] = (
        "name",
        "virtual_cluster_id",
        "execution_role_arn",
        "release_label",
        "job_driver",
    )
    ui_color = "#f9c915"

    def __init__(
        self,
        *,
        name: str,
        virtual_cluster_id: str,
        execution_role_arn: str,
        release_label: str,
        job_driver: dict,
        configuration_overrides: dict | None = None,
        client_request_token: str | None = None,
        aws_conn_id: str = "aws_default",
        wait_for_completion: bool = True,
        poll_interval: int = 30,
        max_tries: int | None = None,
        tags: dict | None = None,
        max_polling_attempts: int | None = None,
        **kwargs: Any,
    ) -> None:
        super().__init__(**kwargs)
        self.name = name
        self.virtual_cluster_id = virtual_cluster_id
        self.execution_role_arn = execution_role_arn
        self.release_label = release_label
        self.job_driver = job_driver
        self.configuration_overrides = configuration_overrides or {}
        self.aws_conn_id = aws_conn_id
        self.client_request_token = client_request_token or str(uuid4())
        self.wait_for_completion = wait_for_completion
        self.poll_interval = poll_interval
        self.max_polling_attempts = max_polling_attempts
        self.tags = tags
        self.job_id: str | None = None

        if max_tries:
            warnings.warn(
                f"Parameter `{self.__class__.__name__}.max_tries` is deprecated and will be removed "
                "in a future release.  Please use method `max_polling_attempts` instead.",
                DeprecationWarning,
                stacklevel=2,
            )
            if max_polling_attempts and max_polling_attempts != max_tries:
                raise Exception("max_polling_attempts must be the same value as max_tries")
            else:
                self.max_polling_attempts = max_tries

    @cached_property
    def hook(self) -> EmrContainerHook:
        """Create and return an EmrContainerHook."""
        return EmrContainerHook(
            self.aws_conn_id,
            virtual_cluster_id=self.virtual_cluster_id,
        )

    def execute(self, context: Context) -> str | None:
        """Run job on EMR Containers"""
        self.job_id = self.hook.submit_job(
            self.name,
            self.execution_role_arn,
            self.release_label,
            self.job_driver,
            self.configuration_overrides,
            self.client_request_token,
            self.tags,
        )
        if self.wait_for_completion:
            query_status = self.hook.poll_query_status(
                self.job_id,
                max_polling_attempts=self.max_polling_attempts,
                poll_interval=self.poll_interval,
            )

            if query_status in EmrContainerHook.FAILURE_STATES:
                error_message = self.hook.get_job_failure_reason(self.job_id)
                raise AirflowException(
                    f"EMR Containers job failed. Final state is {query_status}. "
                    f"query_execution_id is {self.job_id}. Error: {error_message}"
                )
            elif not query_status or query_status in EmrContainerHook.INTERMEDIATE_STATES:
                raise AirflowException(
                    f"Final state of EMR Containers job is {query_status}. "
                    f"Max tries of poll status exceeded, query_execution_id is {self.job_id}."
                )

        return self.job_id

    def on_kill(self) -> None:
        """Cancel the submitted job run"""
        if self.job_id:
            self.log.info("Stopping job run with jobId - %s", self.job_id)
            response = self.hook.stop_query(self.job_id)
            http_status_code = None
            try:
                http_status_code = response["ResponseMetadata"]["HTTPStatusCode"]
            except Exception as ex:
                self.log.error("Exception while cancelling query: %s", ex)
            finally:
                if http_status_code is None or http_status_code != 200:
                    self.log.error("Unable to request query cancel on EMR. Exiting")
                else:
                    self.log.info(
                        "Polling EMR for query with id %s to reach final state",
                        self.job_id,
                    )
                    self.hook.poll_query_status(self.job_id)


class EmrCreateJobFlowOperator(BaseOperator):
    """
    Creates an EMR JobFlow, reading the config from the EMR connection.
    A dictionary of JobFlow overrides can be passed that override
    the config from the connection.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrCreateJobFlowOperator`

    :param aws_conn_id: The Airflow connection used for AWS credentials.
        If this is None or empty then the default boto3 behaviour is used. If
        running Airflow in a distributed manner and aws_conn_id is None or
        empty, then default boto3 configuration would be used (and must be
        maintained on each worker node)
    :param emr_conn_id: :ref:`Amazon Elastic MapReduce Connection <howto/connection:emr>`.
        Use to receive an initial Amazon EMR cluster configuration:
        ``boto3.client('emr').run_job_flow`` request body.
        If this is None or empty or the connection does not exist,
        then an empty initial configuration is used.
    :param job_flow_overrides: boto3 style arguments or reference to an arguments file
        (must be '.json') to override specific ``emr_conn_id`` extra parameters. (templated)
    :param region_name: Region named passed to EmrHook
    """

    template_fields: Sequence[str] = ("job_flow_overrides",)
    template_ext: Sequence[str] = (".json",)
    template_fields_renderers = {"job_flow_overrides": "json"}
    ui_color = "#f9c915"
    operator_extra_links = (EmrClusterLink(),)

    def __init__(
        self,
        *,
        aws_conn_id: str = "aws_default",
        emr_conn_id: str | None = "emr_default",
        job_flow_overrides: str | dict[str, Any] | None = None,
        region_name: str | None = None,
        **kwargs,
    ):
        super().__init__(**kwargs)
        self.aws_conn_id = aws_conn_id
        self.emr_conn_id = emr_conn_id
        self.job_flow_overrides = job_flow_overrides or {}
        self.region_name = region_name

    def execute(self, context: Context) -> str:
        emr = EmrHook(
            aws_conn_id=self.aws_conn_id, emr_conn_id=self.emr_conn_id, region_name=self.region_name
        )

        self.log.info(
            "Creating JobFlow using aws-conn-id: %s, emr-conn-id: %s", self.aws_conn_id, self.emr_conn_id
        )
        if isinstance(self.job_flow_overrides, str):
            job_flow_overrides: dict[str, Any] = ast.literal_eval(self.job_flow_overrides)
            self.job_flow_overrides = job_flow_overrides
        else:
            job_flow_overrides = self.job_flow_overrides
        response = emr.create_job_flow(job_flow_overrides)

        if not response["ResponseMetadata"]["HTTPStatusCode"] == 200:
            raise AirflowException(f"JobFlow creation failed: {response}")
        else:
            job_flow_id = response["JobFlowId"]
            self.log.info("JobFlow with id %s created", job_flow_id)
            EmrClusterLink.persist(
                context=context,
                operator=self,
                region_name=emr.conn_region_name,
                aws_partition=emr.conn_partition,
                job_flow_id=job_flow_id,
            )
            return job_flow_id


class EmrModifyClusterOperator(BaseOperator):
    """
    An operator that modifies an existing EMR cluster.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrModifyClusterOperator`

    :param cluster_id: cluster identifier
    :param step_concurrency_level: Concurrency of the cluster
    :param aws_conn_id: aws connection to uses
    :param do_xcom_push: if True, cluster_id is pushed to XCom with key cluster_id.
    """

    template_fields: Sequence[str] = ("cluster_id", "step_concurrency_level")
    template_ext: Sequence[str] = ()
    ui_color = "#f9c915"
    operator_extra_links = (EmrClusterLink(),)

    def __init__(
        self, *, cluster_id: str, step_concurrency_level: int, aws_conn_id: str = "aws_default", **kwargs
    ):
        super().__init__(**kwargs)
        self.aws_conn_id = aws_conn_id
        self.cluster_id = cluster_id
        self.step_concurrency_level = step_concurrency_level

    def execute(self, context: Context) -> int:
        emr_hook = EmrHook(aws_conn_id=self.aws_conn_id)
        emr = emr_hook.get_conn()

        if self.do_xcom_push:
            context["ti"].xcom_push(key="cluster_id", value=self.cluster_id)

        EmrClusterLink.persist(
            context=context,
            operator=self,
            region_name=emr_hook.conn_region_name,
            aws_partition=emr_hook.conn_partition,
            job_flow_id=self.cluster_id,
        )

        self.log.info("Modifying cluster %s", self.cluster_id)
        response = emr.modify_cluster(
            ClusterId=self.cluster_id, StepConcurrencyLevel=self.step_concurrency_level
        )

        if response["ResponseMetadata"]["HTTPStatusCode"] != 200:
            raise AirflowException(f"Modify cluster failed: {response}")
        else:
            self.log.info("Steps concurrency level %d", response["StepConcurrencyLevel"])
            return response["StepConcurrencyLevel"]


class EmrTerminateJobFlowOperator(BaseOperator):
    """
    Operator to terminate EMR JobFlows.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrTerminateJobFlowOperator`

    :param job_flow_id: id of the JobFlow to terminate. (templated)
    :param aws_conn_id: aws connection to uses
    """

    template_fields: Sequence[str] = ("job_flow_id",)
    template_ext: Sequence[str] = ()
    ui_color = "#f9c915"
    operator_extra_links = (EmrClusterLink(),)

    def __init__(self, *, job_flow_id: str, aws_conn_id: str = "aws_default", **kwargs):
        super().__init__(**kwargs)
        self.job_flow_id = job_flow_id
        self.aws_conn_id = aws_conn_id

    def execute(self, context: Context) -> None:
        emr_hook = EmrHook(aws_conn_id=self.aws_conn_id)
        emr = emr_hook.get_conn()

        EmrClusterLink.persist(
            context=context,
            operator=self,
            region_name=emr_hook.conn_region_name,
            aws_partition=emr_hook.conn_partition,
            job_flow_id=self.job_flow_id,
        )

        self.log.info("Terminating JobFlow %s", self.job_flow_id)
        response = emr.terminate_job_flows(JobFlowIds=[self.job_flow_id])

        if not response["ResponseMetadata"]["HTTPStatusCode"] == 200:
            raise AirflowException(f"JobFlow termination failed: {response}")
        else:
            self.log.info("JobFlow with id %s terminated", self.job_flow_id)


class EmrServerlessCreateApplicationOperator(BaseOperator):
    """
    Operator to create Serverless EMR Application

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrServerlessCreateApplicationOperator`

    :param release_label: The EMR release version associated with the application.
    :param job_type: The type of application you want to start, such as Spark or Hive.
    :param wait_for_completion: If true, wait for the Application to start before returning. Default to True.
        If set to False, ``waiter_countdown`` and ``waiter_check_interval_seconds`` will only be applied when
        waiting for the application to be in the ``CREATED`` state.
    :param client_request_token: The client idempotency token of the application to create.
      Its value must be unique for each request.
    :param config: Optional dictionary for arbitrary parameters to the boto API create_application call.
    :param aws_conn_id: AWS connection to use
    :param waiter_countdown: Total amount of time, in seconds, the operator will wait for
        the application to start. Defaults to 25 minutes.
    :param waiter_check_interval_seconds: Number of seconds between polling the state of the application.
        Defaults to 60 seconds.
    """

    def __init__(
        self,
        release_label: str,
        job_type: str,
        client_request_token: str = "",
        config: dict | None = None,
        wait_for_completion: bool = True,
        aws_conn_id: str = "aws_default",
        waiter_countdown: int = 25 * 60,
        waiter_check_interval_seconds: int = 60,
        **kwargs,
    ):
        self.aws_conn_id = aws_conn_id
        self.release_label = release_label
        self.job_type = job_type
        self.wait_for_completion = wait_for_completion
        self.kwargs = kwargs
        self.config = config or {}
        self.waiter_countdown = waiter_countdown
        self.waiter_check_interval_seconds = waiter_check_interval_seconds
        super().__init__(**kwargs)

        self.client_request_token = client_request_token or str(uuid4())

    @cached_property
    def hook(self) -> EmrServerlessHook:
        """Create and return an EmrServerlessHook."""
        return EmrServerlessHook(aws_conn_id=self.aws_conn_id)

    def execute(self, context: Context):
        response = self.hook.conn.create_application(
            clientToken=self.client_request_token,
            releaseLabel=self.release_label,
            type=self.job_type,
            **self.config,
        )
        application_id = response["applicationId"]

        if response["ResponseMetadata"]["HTTPStatusCode"] != 200:
            raise AirflowException(f"Application Creation failed: {response}")

        self.log.info("EMR serverless application created: %s", application_id)

        # This should be replaced with a boto waiter when available.
        waiter(
            get_state_callable=self.hook.conn.get_application,
            get_state_args={"applicationId": application_id},
            parse_response=["application", "state"],
            desired_state={"CREATED"},
            failure_states=EmrServerlessHook.APPLICATION_FAILURE_STATES,
            object_type="application",
            action="created",
            countdown=self.waiter_countdown,
            check_interval_seconds=self.waiter_check_interval_seconds,
        )

        self.log.info("Starting application %s", application_id)
        self.hook.conn.start_application(applicationId=application_id)

        if self.wait_for_completion:
            # This should be replaced with a boto waiter when available.
            waiter(
                get_state_callable=self.hook.conn.get_application,
                get_state_args={"applicationId": application_id},
                parse_response=["application", "state"],
                desired_state={"STARTED"},
                failure_states=EmrServerlessHook.APPLICATION_FAILURE_STATES,
                object_type="application",
                action="started",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )

        return application_id


class EmrServerlessStartJobOperator(BaseOperator):
    """
    Operator to start EMR Serverless job.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrServerlessStartJobOperator`

    :param application_id: ID of the EMR Serverless application to start.
    :param execution_role_arn: ARN of role to perform action.
    :param job_driver: Driver that the job runs on.
    :param configuration_overrides: Configuration specifications to override existing configurations.
    :param client_request_token: The client idempotency token of the application to create.
      Its value must be unique for each request.
    :param config: Optional dictionary for arbitrary parameters to the boto API start_job_run call.
    :param wait_for_completion: If true, waits for the job to start before returning. Defaults to True.
        If set to False, ``waiter_countdown`` and ``waiter_check_interval_seconds`` will only be applied
        when waiting for the application be to in the ``STARTED`` state.
    :param aws_conn_id: AWS connection to use.
    :param name: Name for the EMR Serverless job. If not provided, a default name will be assigned.
    :param waiter_countdown: Total amount of time, in seconds, the operator will wait for
        the job finish. Defaults to 25 minutes.
    :param waiter_check_interval_seconds: Number of seconds between polling the state of the job.
        Defaults to 60 seconds.
    """

    template_fields: Sequence[str] = (
        "application_id",
        "execution_role_arn",
        "job_driver",
        "configuration_overrides",
    )

    def __init__(
        self,
        application_id: str,
        execution_role_arn: str,
        job_driver: dict,
        configuration_overrides: dict | None,
        client_request_token: str = "",
        config: dict | None = None,
        wait_for_completion: bool = True,
        aws_conn_id: str = "aws_default",
        name: str | None = None,
        waiter_countdown: int = 25 * 60,
        waiter_check_interval_seconds: int = 60,
        **kwargs,
    ):
        self.aws_conn_id = aws_conn_id
        self.application_id = application_id
        self.execution_role_arn = execution_role_arn
        self.job_driver = job_driver
        self.configuration_overrides = configuration_overrides
        self.wait_for_completion = wait_for_completion
        self.config = config or {}
        self.name = name or self.config.pop("name", f"emr_serverless_job_airflow_{uuid4()}")
        self.waiter_countdown = waiter_countdown
        self.waiter_check_interval_seconds = waiter_check_interval_seconds
        super().__init__(**kwargs)

        self.client_request_token = client_request_token or str(uuid4())

    @cached_property
    def hook(self) -> EmrServerlessHook:
        """Create and return an EmrServerlessHook."""
        return EmrServerlessHook(aws_conn_id=self.aws_conn_id)

    def execute(self, context: Context) -> dict:
        self.log.info("Starting job on Application: %s", self.application_id)

        app_state = self.hook.conn.get_application(applicationId=self.application_id)["application"]["state"]
        if app_state not in EmrServerlessHook.APPLICATION_SUCCESS_STATES:
            self.hook.conn.start_application(applicationId=self.application_id)

            waiter(
                get_state_callable=self.hook.conn.get_application,
                get_state_args={"applicationId": self.application_id},
                parse_response=["application", "state"],
                desired_state={"STARTED"},
                failure_states=EmrServerlessHook.APPLICATION_FAILURE_STATES,
                object_type="application",
                action="started",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )

        response = self.hook.conn.start_job_run(
            clientToken=self.client_request_token,
            applicationId=self.application_id,
            executionRoleArn=self.execution_role_arn,
            jobDriver=self.job_driver,
            configurationOverrides=self.configuration_overrides,
            name=self.name,
            **self.config,
        )

        if response["ResponseMetadata"]["HTTPStatusCode"] != 200:
            raise AirflowException(f"EMR serverless job failed to start: {response}")

        self.log.info("EMR serverless job started: %s", response["jobRunId"])
        if self.wait_for_completion:
            # This should be replaced with a boto waiter when available.
            waiter(
                get_state_callable=self.hook.conn.get_job_run,
                get_state_args={
                    "applicationId": self.application_id,
                    "jobRunId": response["jobRunId"],
                },
                parse_response=["jobRun", "state"],
                desired_state=EmrServerlessHook.JOB_SUCCESS_STATES,
                failure_states=EmrServerlessHook.JOB_FAILURE_STATES,
                object_type="job",
                action="run",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )
        return response["jobRunId"]


class EmrServerlessDeleteApplicationOperator(BaseOperator):
    """
    Operator to delete EMR Serverless application

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:EmrServerlessDeleteApplicationOperator`

    :param application_id: ID of the EMR Serverless application to delete.
    :param wait_for_completion: If true, wait for the Application to start before returning. Default to True
    :param aws_conn_id: AWS connection to use
    :param waiter_countdown: Total amount of time, in seconds, the operator will wait for
        the application be deleted. Defaults to 25 minutes.
    :param waiter_check_interval_seconds: Number of seconds between polling the state of the application.
        Defaults to 60 seconds.
    """

    template_fields: Sequence[str] = ("application_id",)

    def __init__(
        self,
        application_id: str,
        wait_for_completion: bool = True,
        aws_conn_id: str = "aws_default",
        waiter_countdown: int = 25 * 60,
        waiter_check_interval_seconds: int = 60,
        **kwargs,
    ):
        self.aws_conn_id = aws_conn_id
        self.application_id = application_id
        self.wait_for_completion = wait_for_completion
        self.waiter_countdown = waiter_countdown
        self.waiter_check_interval_seconds = waiter_check_interval_seconds
        super().__init__(**kwargs)

    @cached_property
    def hook(self) -> EmrServerlessHook:
        """Create and return an EmrServerlessHook."""
        return EmrServerlessHook(aws_conn_id=self.aws_conn_id)

    def execute(self, context: Context) -> None:
        self.log.info("Stopping application: %s", self.application_id)
        self.hook.conn.stop_application(applicationId=self.application_id)

        # This should be replaced with a boto waiter when available.
        waiter(
            get_state_callable=self.hook.conn.get_application,
            get_state_args={
                "applicationId": self.application_id,
            },
            parse_response=["application", "state"],
            desired_state=EmrServerlessHook.APPLICATION_FAILURE_STATES,
            failure_states=set(),
            object_type="application",
            action="stopped",
            countdown=self.waiter_countdown,
            check_interval_seconds=self.waiter_check_interval_seconds,
        )

        self.log.info("Deleting application: %s", self.application_id)
        response = self.hook.conn.delete_application(applicationId=self.application_id)

        if response["ResponseMetadata"]["HTTPStatusCode"] != 200:
            raise AirflowException(f"Application deletion failed: {response}")

        if self.wait_for_completion:
            # This should be replaced with a boto waiter when available.
            waiter(
                get_state_callable=self.hook.conn.get_application,
                get_state_args={"applicationId": self.application_id},
                parse_response=["application", "state"],
                desired_state={"TERMINATED"},
                failure_states=EmrServerlessHook.APPLICATION_FAILURE_STATES,
                object_type="application",
                action="deleted",
                countdown=self.waiter_countdown,
                check_interval_seconds=self.waiter_check_interval_seconds,
            )

        self.log.info("EMR serverless application deleted")

PreviousNext

Was this entry helpful?