From 67b00b941e5b130a54628a9bb577fbe869dcfd6e Mon Sep 17 00:00:00 2001 From: Lars Date: Wed, 18 Mar 2026 09:52:44 +0100 Subject: [PATCH] fix: force IPv4 and add aggressive timeouts for APT - 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 --- backend/Dockerfile | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/backend/Dockerfile b/backend/Dockerfile index e38531c..6c5e3a3 100644 --- a/backend/Dockerfile +++ b/backend/Dockerfile @@ -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/*