docs(katana): docker compose example for setting up monitoring services

crates/katana/monitoring/README.md

@@ -0,0 +1,20 @@
+# Katana Monitoring
+
+This directory contains an example of how to set up monitoring for Katana using Prometheus and Grafana.
+
+The `docker-compose.yml` file defines services for:
+- Katana node
+- Prometheus
+- Grafana
+
+Configuration files are provided for Prometheus and Grafana dashboards.
+
+To run:
+
+```
+docker-compose up
+```
+
+This will start Katana with metrics enabled, Prometheus scraping those metrics, and Grafana dashboards to visualize the data.
+
+Access the Grafana dashboard at http://localhost:3000.

crates/katana/monitoring/docker-compose.yml

@@ -0,0 +1,46 @@
+name: "katana"
+
+services:
+  katana:
+    restart: unless-stopped
+    image: ghcr.io/dojoengine/dojo
+    ports:
+      - "5050:5050" # rpc
+      - "9001:9001" # metrics
+    command: >
+      katana
+      --db-dir .katana/data-dir
+      --metrics 0.0.0.0:9001
+      --host 0.0.0.0 --port 5050
+
+  prometheus:
+    restart: unless-stopped
+    image: prom/prometheus
+    depends_on:
+      - katana
+    ports:
+      - 9090:9090
+    volumes:
+      - ./prometheus/:/etc/prometheus/
+      - prometheusdata:/prometheus
+    command:
+      - --config.file=/etc/prometheus/config.yml
+      - --storage.tsdb.path=/prometheus
+
+  grafana:
+    restart: unless-stopped
+    image: grafana/grafana
+    depends_on:
+      - prometheus
+    ports:
+      - 3000:3000
+    volumes:
+      - ./grafana/dashboards:/etc/grafana/provisioning/dashboards
+      - ./grafana/datasources:/etc/grafana/provisioning/datasources
+      - grafanadata:/var/lib/grafana
+
+volumes:
+  prometheusdata:
+    driver: local
+  grafanadata:
+    driver: local