You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.8 KiB
79 lines
2.8 KiB
# |
|
# 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. |
|
|
|
"""This module contains AWS CloudFormation Hook""" |
|
from typing import Optional, Union |
|
|
|
from airflow.providers.amazon.aws.hooks.base_aws import AwsBaseHook |
|
from boto3 import client, resource |
|
from botocore.exceptions import ClientError |
|
|
|
|
|
class AWSCloudFormationHook(AwsBaseHook): |
|
""" |
|
Interact with AWS CloudFormation. |
|
|
|
Additional arguments (such as ``aws_conn_id``) may be specified and |
|
are passed down to the underlying AwsBaseHook. |
|
|
|
.. seealso:: |
|
:class:`~airflow.providers.amazon.aws.hooks.base_aws.AwsBaseHook` |
|
""" |
|
|
|
def __init__(self, *args, **kwargs): |
|
super().__init__(client_type="cloudformation", *args, **kwargs) |
|
|
|
def get_stack_status(self, stack_name: Union[client, resource]) -> Optional[dict]: |
|
"""Get stack status from CloudFormation.""" |
|
self.log.info("Poking for stack %s", stack_name) |
|
|
|
try: |
|
stacks = self.get_conn().describe_stacks(StackName=stack_name)["Stacks"] |
|
return stacks[0]["StackStatus"] |
|
except ClientError as e: |
|
if "does not exist" in str(e): |
|
return None |
|
else: |
|
raise e |
|
|
|
def create_stack(self, stack_name: str, params: dict) -> None: |
|
""" |
|
Create stack in CloudFormation. |
|
|
|
:param stack_name: stack_name. |
|
:type stack_name: str |
|
:param params: parameters to be passed to CloudFormation. |
|
:type params: dict |
|
""" |
|
if "StackName" not in params: |
|
params["StackName"] = stack_name |
|
self.get_conn().create_stack(**params) |
|
|
|
def delete_stack(self, stack_name: str, params: Optional[dict] = None) -> None: |
|
""" |
|
Delete stack in CloudFormation. |
|
|
|
:param stack_name: stack_name. |
|
:type stack_name: str |
|
:param params: parameters to be passed to CloudFormation (optional). |
|
:type params: dict |
|
""" |
|
params = params or {} |
|
if "StackName" not in params: |
|
params["StackName"] = stack_name |
|
self.get_conn().delete_stack(**params)
|
|
|