Change to bind mounts mapped to per-microservice ZFS datasets

loki/compose.yaml

@@ -7,10 +7,6 @@ networks:
   logging:
     driver: bridge
 
-volumes:
-  loki-data:
-  grafana-data:
-
 services:
 
   # ── Loki: log storage and query engine ──────────────────────────────────────
@@ -24,7 +20,7 @@ services:
       - "3100:3100"       # Loki HTTP API (Alloy pushes here; Grafana queries here)
     volumes:
       - /var/lib/loki:/loki
-      - /etc/loki/loki.yml:/etc/loki/loki.yml:ro
+      - /etc/loki:/etc/loki:ro
     command: -config.file=/etc/loki/loki.yml
     healthcheck:
       test: ["CMD-SHELL", "wget -q --spider http://localhost:3100/ready || exit 1"]