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ops: wait for the database on startup (no crash-loop on a slow DB)
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New thoughtsync.dbwait polls the DB (SELECT 1) up to 60×1s before startup,
logging each attempt, so a briefly slow/unready database no longer crash-
loops the container. Wired as `python -m thoughtsync.dbwait &&` ahead of
`alembic upgrade head` in the image CMD and the dev compose command; exits
non-zero after the window so a restart policy can take over. Prod compose
gains restart: unless-stopped as the complementary piece.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm
This commit is contained in:
bvandeusen
2026-07-20 20:10:45 -04:00
co-authored by Claude Opus 4.8
parent 08258f81d9
commit fe12859ba2
4 changed files with 61 additions and 4 deletions
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@@ -30,6 +30,7 @@ ARG BUILD_VERSION=dev
ENV APP_VERSION=$BUILD_VERSION
EXPOSE 5000
# Run migrations, then serve. Family convention (rule 82): schema is built by real
# migrations, never metadata.create_all.
CMD ["sh", "-c", "alembic upgrade head && hypercorn 'thoughtsync.app:create_app()' --bind 0.0.0.0:5000 --keep-alive 600"]
# Wait for the database, run migrations, then serve. The DB wait keeps a briefly
# slow/unready database from crash-looping the container. Family convention
# (rule 82): schema is built by real migrations, never metadata.create_all.
CMD ["sh", "-c", "python -m thoughtsync.dbwait && alembic upgrade head && hypercorn 'thoughtsync.app:create_app()' --bind 0.0.0.0:5000 --keep-alive 600"]