Feat: docker + prometheus + grafana dashboards (#1)

add docker compose file for running db on servers with basic prometheus metrics and grafana dashboard

Author: idatsy

etc/docker-compose.yml

@@ -0,0 +1,62 @@
+version: '3.8'
+services:
+  questdb:
+    image: questdb/questdb:8.1.1
+    container_name: questdb
+    ports:
+      - "9000:9000"
+      - "8812:8812"
+      - "9009:9009"
+      - "9003:9003"
+    environment:
+      - QDB_METRICS_ENABLED=TRUE
+    volumes:
+      - questdb_data:/root/.questdb/db
+
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: prometheus
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./prometheus.yml:/etc/prometheus/prometheus.yml
+      - prometheus_data:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--web.console.libraries=/etc/prometheus/console_libraries'
+      - '--web.console.templates=/etc/prometheus/consoles'
+    depends_on:
+      - questdb
+      - node-exporter
+
+  grafana:
+    image: grafana/grafana:latest
+    container_name: grafana
+    ports:
+      - "3000:3000"
+    volumes:
+      - grafana_data:/var/lib/grafana
+    environment:
+      - GF_SECURITY_ADMIN_PASSWORD=admin
+    depends_on:
+      - prometheus
+
+  node-exporter:
+    image: prom/node-exporter:latest
+    container_name: node-exporter
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.sysfs=/host/sys'
+      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
+    ports:
+      - "9100:9100"
+
+volumes:
+  questdb_data:
+  prometheus_data:
+  grafana_data:

etc/prometheus.yml

@@ -0,0 +1,15 @@
+global:
+  scrape_interval: 5s
+  external_labels:
+    monitor: 'questdb'
+
+scrape_configs:
+  - job_name: 'questdb'
+    scrape_interval: 5s
+    static_configs:
+      - targets: ['questdb:9003']
+
+  - job_name: 'node'
+    scrape_interval: 5s
+    static_configs:
+      - targets: ['node-exporter:9100']