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fix: force IPv4 and add aggressive timeouts for APT
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- Force IPv4 (IPv6 shows 33% packet loss)
- Increase retries to 5
- Add 10s timeouts to fail fast and retry
- Previous fix improved from 1630s to 78s but still hangs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Lars 2026-03-18 09:52:44 +01:00
parent ec3c279e11
commit 67b00b941e
1 changed files with 7 additions and 4 deletions
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11
backend/Dockerfile
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@ -1,9 +1,12 @@
FROM python:3.12-slim
# Use German mirror for better connectivity and add retry logic
RUN echo "deb http://ftp.de.debian.org/debian bookworm main" > /etc/apt/sources.list && \
echo "deb http://ftp.de.debian.org/debian bookworm-updates main" >> /etc/apt/sources.list && \
echo "Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries
# Force IPv4 and use German mirror with aggressive retry/timeout settings
RUN echo "Acquire::ForceIPv4 \"true\";" > /etc/apt/apt.conf.d/99force-ipv4 && \
echo "Acquire::Retries \"5\";" > /etc/apt/apt.conf.d/80-retries && \
echo "Acquire::http::Timeout \"10\";" >> /etc/apt/apt.conf.d/80-retries && \
echo "Acquire::ftp::Timeout \"10\";" >> /etc/apt/apt.conf.d/80-retries && \
echo "deb http://ftp.de.debian.org/debian bookworm main" > /etc/apt/sources.list && \
echo "deb http://ftp.de.debian.org/debian bookworm-updates main" >> /etc/apt/sources.list
# Install PostgreSQL client for psql (needed for startup.sh)
RUN apt-get update && apt-get install -y postgresql-client && rm -rf /var/lib/apt/lists/*