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https://issues.apache.org/jira/browse/AIRFLOW-2931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ash Berlin-Taylor resolved AIRFLOW-2931.
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Resolution: Fixed
Fix Version/s: 1.10.0
This has been fixed in 1.10.0 and cryptography is not a hard requirement
anymore (it is recommended though!)
> Make Quick Start work when user doesn't have `cryptography` installed
> ---------------------------------------------------------------------
>
> Key: AIRFLOW-2931
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2931
> Project: Apache Airflow
> Issue Type: Improvement
> Affects Versions: Airflow 1.8
> Reporter: Mitchell Lloyd
> Priority: Minor
> Fix For: 1.10.0
>
>
> Following the [Quick Start
> guide|https://airflow.incubator.apache.org/start.html] I ran into the
> following error when running airflow initdb:
> {code:java}
> [2018-08-21 21:31:38,602] {__init__.py:45} INFO - Using executor
> SequentialExecutor DB: sqlite:////Users/mitch/projects/airflow/airflow.db
> [2018-08-21 21:31:38,716] {db.py:312} INFO - Creating tables INFO
> [alembic.runtime.migration] Context impl SQLiteImpl. INFO
> [alembic.runtime.migration] Will assume non-transactional DDL. [2018-08-21
> 21:31:38,792] {models.py:643} ERROR - Failed to load fernet while encrypting
> value, using non-encrypted value. Traceback (most recent call last): File
> "/Users/mitch/.pyenv/versions/3.6.6/lib/python3.6/site-packages/airflow/models.py",
> line 105, in get_fernet return Fernet(configuration.get('core',
> 'FERNET_KEY').encode('utf-8')) File
> "/Users/mitch/.pyenv/versions/3.6.6/lib/python3.6/site-packages/cryptography/fernet.py",
> line 34, in __init__ key = base64.urlsafe_b64decode(key) File
> "/Users/mitch/.pyenv/versions/3.6.6/lib/python3.6/base64.py", line 133, in
> urlsafe_b64decode return b64decode(s) File
> "/Users/mitch/.pyenv/versions/3.6.6/lib/python3.6/base64.py", line 87, in
> b64decode return binascii.a2b_base64(s) binascii.Error: Incorrect
> padding{code}
> My airflow.cfg file contained
> {code:java}
> # Secret key to save connection passwords in the db fernet_key =
> cryptography_not_found_storing_passwords_in_plain_text{code}
> [~kevcampb] Helped me on gitter and directed me to [this
> link|https://bcb.github.io/airflow/fernet-key] which resolved my issue.
> It seems that the quick start instructions should be updated to include this
> fernet key generation information or perhaps there is a way to ensure that
> cryptography is installed when apache-airflow is installed and automatically
> generate a key.
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