homelab-codex-ws/hosts/vps/runtime/node-agent/docker-compose.override.yml

services:
  node-agent:
    environment:
      - NODE_NAME=vps
      - CHECK_INTERVAL=60
      # TEMPORARY mitigation (M1) for the unfiltered-prune incident
      # (kb/incidents/2026-07-30-ollama-solaria-vanish.md §7). node-agent runs
      # `docker container prune()` with NO filters every CHECK_INTERVAL, and the
      # Docker API removes EVERY non-running container regardless of restart
      # policy or compose labels — this already destroyed ollama@solaria. On VPS
      # the loss is worse: humanai-mailer and humanai-landing have no compose
      # definition in this repo, so a pruned container cannot be recreated.
      # node_type is read ONLY by run_safe_cleanup() (plus two log lines), so
      # lte_node disables cleanup and nothing else — monitoring, event shipping
      # and action dispatch keep working.
      # REMOVE once R1 (explicit-enumeration prune) is deployed to VPS.
      - NODE_TYPE=lte_node
    # host network mode: node-agent on VPS shares the host's network namespace
    # so that localhost:18180 resolves to the control-plane's exposed port.
    # Without this, localhost inside the container is the container's own loopback
    # and the _check_control_plane_health() probe would always fail.
    network_mode: host
    # HARD memory ceiling: node-agent mounts /opt/homelab/events/ (page cache)
    # and may accumulate Python RSS over hours; 640m cap ensures it is killed and
    # auto-restarted by Docker before consuming host memory. oom_score_adj -900
    # prevents the host kernel OOM-killer from picking it as a global victim.
    mem_limit: 640m
    oom_score_adj: -900