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kevinveenbirkenbachandClaude Opus 4.7
948a6d6664
Adds a single apt-cacher-ng container (sameersbn/apt-cacher-ng:3.7.4-20220421)
on the swarm-lab network and routes every node's apt traffic through it via
/etc/apt/apt.conf.d/01-cacher. With four nodes provisioning the same
infinito-nexus.deb deps in parallel (~200 MB / node), the cache turns the
second-through-fourth fetch into a hot serve from the local proxy.
The workflow restores ${{ runner.temp }}/apt-cacher-ng across runs via
actions/cache@v4 (keyed on packaging/debian/control), so on warm GHA runs
the cache is also populated for the first node — driving bootstrap from
~11 min toward sub-3 min once the cache is hot. The cache restore step is
guarded by `if: \!env.ACT` so act runs still exercise the cold path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>