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50 lines
1.8 KiB
50 lines
1.8 KiB
# Licensed to the Apache Software Foundation (ASF) under one |
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# or more contributor license agreements. See the NOTICE file |
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# distributed with this work for additional information |
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# regarding copyright ownership. The ASF licenses this file |
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# to you under the Apache License, Version 2.0 (the |
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# "License"); you may not use this file except in compliance |
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# with the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, |
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# software distributed under the License is distributed on an |
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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# KIND, either express or implied. See the License for the |
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# specific language governing permissions and limitations |
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# under the License. |
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import logging |
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from botocore.credentials import ReadOnlyCredentials |
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log = logging.getLogger(__name__) |
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def build_credentials_block(credentials: ReadOnlyCredentials) -> str: |
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""" |
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Generate AWS credentials block for Redshift COPY and UNLOAD |
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commands, as noted in AWS docs |
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https://docs.aws.amazon.com/redshift/latest/dg/copy-parameters-authorization.html#copy-credentials |
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:param credentials: ReadOnlyCredentials object from `botocore` |
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:return: str |
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""" |
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if credentials.token: |
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log.debug("STS token found in credentials, including it in the command") |
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# these credentials are obtained from AWS STS |
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# so the token must be included in the CREDENTIALS clause |
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credentials_line = ( |
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f"aws_access_key_id={credentials.access_key};" |
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f"aws_secret_access_key={credentials.secret_key};" |
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f"token={credentials.token}" |
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) |
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else: |
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credentials_line = ( |
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f"aws_access_key_id={credentials.access_key};" |
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f"aws_secret_access_key={credentials.secret_key}" |
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) |
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return credentials_line
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