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TudorandClaude Opus 5 264edd2e3a
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fix(airflow): a login that survives a container restart
The simple auth manager generates a random password on first start and
writes it to a file, so every restart of the api-server invalidated the
last one and the password had to be dug out of the container logs again.

The stack now writes that file itself from AIRFLOW_ADMIN_PASSWORD before
exec'ing the api-server. Airflow generates nothing when the file already
exists, so the login is whatever the stack environment says it is.

Written with python rather than echo, so json.dumps escapes a password
containing quotes, backslashes or non-ASCII correctly — verified against
`p@ss "wo\rd' £5`, which round-trips intact.

An unset AIRFLOW_ADMIN_PASSWORD raises KeyError and the container exits.
Falling back to a generated password would silently undo the point of the
change, and a compose-level `:?` gives the same refusal a readable reason.
This does mean the variable MUST be set in Portainer before the next
deploy of either stack.

Not affected by the two Docker gotchas in the upstream docs: this image
has no USER directive so it runs as root, and the file is rewritten from
the environment on every start rather than persisted on a volume.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BvdDKvFFSZuMVDH5fEyTob
2026-08-31 17:38:42 +01:00
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