Adds Prometheus/Grafana monitoring infrastructure

docker-compose.yml

@@ -18,6 +18,9 @@ services:
     - netbox-nginx-config:/etc/netbox-nginx:z
     - netbox-static-files:/opt/netbox/netbox/static:z
     - netbox-media-files:/opt/netbox/netbox/media:z
+    - type: tmpfs
+      target: /tmp/metrics
+      read_only: false
   netbox-worker:
     <<: *netbox
     depends_on:
@@ -27,6 +30,8 @@ services:
     - /opt/netbox/netbox/manage.py
     command:
     - rqworker
+
+  # nginx
   nginx:
     command: nginx -c /etc/netbox-nginx/nginx.conf
     image: nginx:1.19-alpine
@@ -37,18 +42,36 @@ services:
     volumes:
     - netbox-static-files:/opt/netbox/netbox/static:ro
     - netbox-nginx-config:/etc/netbox-nginx/:ro
+
+  nginx-exporter:
+    image: nginx/nginx-prometheus-exporter
+    depends_on:
+    - nginx
+    command:
+    - -nginx.scrape-uri
+    - http://nginx:8081/stub_status
+
+  # postgres
   postgres:
     image: postgres:12-alpine
     env_file: env/postgres.env
     volumes:
     - netbox-postgres-data:/var/lib/postgresql/data
-  redis:
+
+  postgres-exporter:
+    image: wrouesnel/postgres_exporter:v0.8.0
+    depends_on:
+    - postgres
+    env_file: env/postgres-exporter.env
+
+  # redis
+  redis: &redis
     image: redis:6-alpine
     command:
     - sh
     - -c # this is to evaluate the $REDIS_PASSWORD from the env
     - redis-server --appendonly yes --requirepass $$REDIS_PASSWORD ## $$ because of docker-compose
-    env_file: env/redis.env
+    env_file: env/redis-worker.env
     volumes:
     - netbox-redis-data:/data
   redis-cache:
@@ -56,8 +79,48 @@ services:
     command:
     - sh
     - -c # this is to evaluate the $REDIS_PASSWORD from the env
-    - redis-server --requirepass $$REDIS_PASSWORD ## $$ because of docker-compose
+    - redis-server --appendonly yes --requirepass $$REDIS_PASSWORD ## $$ because of docker-compose
     env_file: env/redis-cache.env
+
+  redis-worker-exporter:
+    image: oliver006/redis_exporter
+    depends_on:
+    - redis
+    env_file: env/redis-worker-exporter.env
+  redis-cache-exporter:
+    image: oliver006/redis_exporter
+    depends_on:
+    - redis-cache
+    env_file: env/redis-cache-exporter.env
+
+  # prometheus
+  prometheus:
+    image: prom/prometheus:v2.22.0
+    depends_on:
+    - postgres-exporter
+    - redis-cache-exporter
+    - redis-worker-exporter
+    - nginx-exporter
+    - netbox
+    ports:
+    - 9090
+    volumes:
+    - ./monitoring/prometheus/:/etc/prometheus/
+    - prometheus-data:/prometheus/data
+
+  # grafana
+  grafana:
+    image: grafana/grafana:7.2.1
+    depends_on:
+    - prometheus
+    ports:
+    - 3000
+    volumes:
+    - ./monitoring/grafana/plugins/:/var/lib/grafana/plugins/:z,ro
+    - ./monitoring/grafana/provisioning/:/etc/grafana/provisioning/:z,ro
+    - ./monitoring/grafana/dashboards/:/etc/grafana/dashboards/:z,ro
+    - grafana-data:/var/lib/grafana
+
 volumes:
   netbox-static-files:
     driver: local
@@ -69,3 +132,7 @@ volumes:
     driver: local
   netbox-redis-data:
     driver: local
+  prometheus-data:
+    driver: local
+  grafana-data:
+    driver: local