Bernard Siebens fe19a6f08a Tune gunicorn/Postgres/Redis for a memory-limited server ...

- gunicorn: 3 workers -> 2 (this workload isn't CPU-bound per
  DEPLOYMENT.md's own sizing), add --preload so workers share
  immutable memory via copy-on-write instead of each independently
  importing Django, add --max-requests so a worker that renders a
  WeasyPrint invoice doesn't carry that memory forever.
- Postgres: trim shared_buffers/max_connections from the image
  defaults (128MB/100), sized for a ~0.2GB dataset instead.
- Redis: cap with --maxmemory as a ceiling, not a saving.

2026-08-06 22:29:20 +02:00

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