broad-announce/deploy/nats/nats.conf

# nats.conf — NATS server config for the broad-announce dev/playground
# environment. Mirrors what was previously set via CLI flags, plus
# the JetStream limits that 2.10 does not expose as CLI flags.
#
# Mounted at /etc/nats/nats.conf by docker-compose. Loaded via -c flag.
#
# See M11_NATS_INVESTIGATION.md for why max_store is 10G and why
# we have stream-level MaxBytes/MaxAge in broker.go (not here).

# Client port (apps connect to nats:4222)
port: 4222

# HTTP monitoring port (Prometheus + ops access)
monitor_port: 8222

# Disable per-message tracing in dev (we use structured logging elsewhere)
# trace: true

# JetStream configuration.
# max_store:  hard cap on disk-backed storage. With 11 GiB free on
#             parres (post-prune 2026-06-16), 10 GiB gives a safety
#             margin while still being well above the actual stream
#             usage (~1.1 GiB after the broker.go fix).
# max_mem:    hard cap on memory-backed storage. Set to 1 GiB
#             (parres has 16 GiB total RAM; ollama + prometheus +
#             clickhouse + grafana use the rest). Streams we declare
#             are file-backed, so this only matters for any future
#             memory-backed streams.
# store_dir:  where JetStream writes its files. Mounted from the
#             natsdata docker volume.
jetstream {
  store_dir: /data/jetstream
  max_store: 10737418240   # 10 GiB
  max_mem:   1073741824    # 1 GiB
}