[GitHub] [airflow] ferruzzi commented on a change in pull request #16571: Implemented Basic EKS Integration

[GitBox <gi...@apache.org>]

ferruzzi commented on a change in pull request #16571:
URL: https://github.com/apache/airflow/pull/16571#discussion_r664096250



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File path: airflow/providers/amazon/aws/operators/eks.py
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@@ -0,0 +1,737 @@
+# 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.
+
+# pylint: disable=invalid-name
+"""This module contains Amazon EKS operators."""
+import json
+import os
+from datetime import datetime
+from time import sleep
+from typing import Dict, List, Optional
+
+from boto3 import Session
+
+from airflow.models import BaseOperator
+from airflow.providers.amazon.aws.hooks.eks import DEFAULT_PAGINATION_TOKEN, DEFAULT_RESULTS_PER_PAGE, EksHook
+from airflow.providers.amazon.aws.utils.eks_kube_config import (
+    DEFAULT_CONTEXT_NAME,
+    DEFAULT_KUBE_CONFIG_PATH,
+    DEFAULT_NAMESPACE_NAME,
+    DEFAULT_POD_USERNAME,
+    generate_config_file,
+)
+from airflow.providers.cncf.kubernetes.operators.kubernetes_pod import KubernetesPodOperator
+
+CHECK_INTERVAL_SECONDS = 15
+TIMEOUT_SECONDS = 25 * 60
+CONN_ID = "eks"
+REGION = Session().region_name
+DEFAULT_COMPUTE_TYPE = 'nodegroup'
+DEFAULT_NODEGROUP_NAME_SUFFIX = '-nodegroup'
+DEFAULT_POD_NAME = 'pod'
+KUBE_CONFIG_ENV_VAR = 'KUBECONFIG'
+
+
+class EKSCreateClusterOperator(BaseOperator):
+    """
+    Creates an Amazon EKS Cluster control plane.
+
+    Optionally, can also create the supporting compute architecture:
+    If argument 'compute' is provided with a value of 'nodegroup', will also attempt to create an Amazon
+    EKS Managed Nodegroup for the cluster.  See EKSCreateNodegroupOperator documentation for requirements.
+
+    .. seealso::
+        For more information on how to use this operator, take a look at the guide:
+        :ref:`howto/operator:EKSCreateClusterOperator`
+
+    :param cluster_name: The unique name to give to your Amazon EKS Cluster.
+    :type cluster_name: str
+    :param cluster_role_arn: The Amazon Resource Name (ARN) of the IAM role that provides permissions for the
+       Kubernetes control plane to make calls to AWS API operations on your behalf.
+    :type cluster_role_arn: str
+    :param resources_vpc_config: The VPC configuration used by the cluster control plane.
+    :type resources_vpc_config: Dict
+    :param compute: The type of compute architecture to generate along with the cluster.
+        Defaults to 'nodegroup' to generate an EKS Managed Nodegroup.
+    :type compute: str
+    :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 the default boto3 configuration would be used (and must be
+         maintained on each worker node).
+    :type aws_conn_id: str
+
+    If 'compute' is 'nodegroup', the following are required:
+
+    :param nodegroup_name: The unique name to give your EKS Managed Nodegroup.
+    :type nodegroup_name: str
+    :param nodegroup_role_arn: The Amazon Resource Name (ARN) of the IAM role to associate
+         with the EKS Managed Nodegroup.
+    :type nodegroup_role_arn: str
+
+    """
+
+    def __init__(
+        self,
+        cluster_name: str,
+        cluster_role_arn: str,
+        resources_vpc_config: Dict,
+        nodegroup_name: Optional[str] = None,
+        nodegroup_role_arn: Optional[str] = None,
+        compute: Optional[str] = DEFAULT_COMPUTE_TYPE,
+        conn_id: Optional[str] = CONN_ID,
+        region: Optional[str] = REGION,
+        **kwargs,
+    ) -> None:
+        super().__init__(**kwargs)
+        self.clusterName = cluster_name
+        self.clusterRoleArn = cluster_role_arn
+        self.resourcesVpcConfig = resources_vpc_config
+        self.compute = compute
+        self.conn_id = conn_id
+        self.region = region
+
+        if self.compute == 'nodegroup':
+            self.nodegroupName = nodegroup_name or self.clusterName + DEFAULT_NODEGROUP_NAME_SUFFIX
+            if nodegroup_role_arn:
+                self.nodegroupRoleArn = nodegroup_role_arn
+            else:
+                message = "Creating an EKS Managed Nodegroup requires nodegroup_role_arn to be passed in."
+                self.log.error(message)
+                raise AttributeError(message)
+
+    def execute(self, context):
+        eks_hook = EksHook(
+            aws_conn_id=self.conn_id,
+            region_name=self.region,
+        )
+
+        eks_hook.create_cluster(
+            name=self.clusterName,
+            roleArn=self.clusterRoleArn,
+            resourcesVpcConfig=self.resourcesVpcConfig,
+        )
+
+        if self.compute is not None:
+            self.log.info("Waiting for EKS Cluster to provision.  This will take some time.")
+
+            countdown = TIMEOUT_SECONDS
+            while eks_hook.get_cluster_state(clusterName=self.clusterName) != "ACTIVE":
+                if countdown >= CHECK_INTERVAL_SECONDS:
+                    countdown -= CHECK_INTERVAL_SECONDS
+                    self.log.info(
+                        "Waiting for cluster to start.  Checking again in %d seconds", CHECK_INTERVAL_SECONDS
+                    )
+                    sleep(CHECK_INTERVAL_SECONDS)
+                else:
+                    message = "Cluster is still inactive after the allocated time limit.  Aborting."

Review comment:
       Teardown added in coming revision.




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