# PIHA-specific override for node_exporter.
#
# WHY: KB module 5 phase 3 step 5 (kb/phases/kb-m5-faza3.md §7.2) needs the
# textfile collector so kb-ingest's systemd timer can publish
# kb_ingest_last_success_timestamp / kb_ingest_last_exit_code / kb_ingest_embed_backlog
# etc. for fleet-prometheus to scrape and alert on.
#
# NO NEW MOUNT: the base compose already binds `/:/host:ro,rslave` — the textfile
# directory is read through that existing mount, not a new volume. Command lists are
# replaced wholesale by Compose overrides (not merged), so both flags are restated here.
services:
  node_exporter:
    command:
      - '--path.rootfs=/host'
      - '--collector.textfile.directory=/host/opt/homelab/state/node-exporter'