Files
computer-playbook/compose/package-cache/apt/debian.list
kevinveenbirkenbachandClaude Opus 5 f9dea42c68 fix(package-cache): survive a flaky apt mirror
A debian:bookworm workspace job died on `apt-get update`: the mounted
sources list carried the Ubuntu entry too, Nexus had auto-blocked
archive.ubuntu.com, and apt fails the whole update on one bad source.

Three holes, three plugs:

- One sources list per INFINITO_DISTRO under compose/package-cache/apt/,
  selected by the compose overrides. A Debian runner no longer fetches
  an Ubuntu suite it has no use for. The non-apt distros get an empty
  file so the bind mount has a source to point at.
- autoBlock off. While a remote is auto-blocked Nexus answers `404
  Remote Auto Blocked` to every client instead of falling back to the
  copy it already has cached.
- Mirror failover in the frontend. Every apt suite gets a second proxy
  repo on an independent upstream; a 5xx from the primary re-runs the
  request against it. Nexus has no group repository type for apt, so
  the retry lives in nginx.

Measured on a live Nexus 3.91.1: dead remote without a cached copy
answers 502, with a cached copy 200 regardless of metadataMaxAge. The
frontend serves 149 kB of real bookworm `Release` from the mirror repo
when the primary is dead, and the new regex locations produce upstream
request lines byte-identical to the `rewrite … break` form they replace,
including `%3a` epochs in pool paths.

INFINITO_CACHE_PACKAGE_APT_LIST is gone; the mount interpolates
INFINITO_DISTRO directly.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-04 19:33:04 +02:00

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# apt sources for the Debian runner: routes apt-get through the
# package-cache (Sonatype Nexus 3 OSS) pull-through proxy.
#
# Real mirror hostname, not the `package-cache` service name, which
# coredns — the container's resolver — cannot resolve; the compose
# overrides map the hostname to the cache frontend via extra_hosts.
#
# One file per INFINITO_DISTRO: apt fails the whole `apt-get update`
# when a single source is unreachable, so a Debian runner must never
# carry the Ubuntu entry.
deb [trusted=yes] http://deb.debian.org/debian bookworm main