docker-monitor-stack.yml

version: "3.7"

services:
  # Visualize metrics
  grafana:
    hostname: grafana
    image: grafana/grafana:6.6.2
    user: root
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: any
        delay: 15s
        max_attempts: 15
      placement:
        constraints:
          - node.role == manager
    environment:
      - GF_SECURITY_ADMIN_USER=${ADMIN_USERNAME:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${ADMIN_PASSWORD:-admin}
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SMTP_ENABLED=${GF_SMTP_ENABLED:-false}
      - GF_SMTP_HOST=${GF_SMTP_HOST:-smtp.gmail.com:465}
      - GF_SMTP_USER=${GF_SMTP_USER:-grafana@test.com}
      - GF_SMTP_PASSWORD=${GF_SMTP_PASSWORD:-secret}
    volumes:
      - grafana-data:/var/lib/grafana
    ports:
      - ${GF_PORT:-3000}:3000
    configs:
      - source: ocariot-prom-data-src-grafana-config
        target: /etc/grafana/provisioning/datasources/prom_data_src.yaml
        mode: 0400
      - source: ocariot-dash-grafana-config
        target: /etc/grafana/provisioning/dashboards/dash_config.yml
        mode: 0400
      - source: ocariot-nodes-dash-grafana-config
        target: /etc/grafana/dashboards/nodes.json
        mode: 0400
      - source: ocariot-services-dash-grafana-config
        target: /etc/grafana/dashboards/services.json
        mode: 0400
      - source: ocariot-prom-dash-grafana-config
        target: /etc/grafana/dashboards/prometheus.json
        mode: 0400
    networks:
      - ocariot
    depends_on:
      - prometheus
    logging:
      driver: json-file
      options:
        max-size: 100m

  # Metrics database
  prometheus:
    image: prom/prometheus:v2.16.0
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: any
        delay: 15s
        max_attempts: 15
      placement:
        constraints:
          - node.role == manager
    command:
      - '--config.file=/etc/prometheus/config.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=${DATA_RETENTION:-15d}'
    volumes:
      - prometheus-data:/prometheus
    configs:
      - source: ocariot-prometheus-config
        target: /etc/prometheus/config.yml
        mode: 0444
    networks:
      - ocariot
    depends_on:
      - node-exporter
      - cadvisor
    logging:
      driver: json-file
      options:
        max-size: 100m

  # Containers metrics collector
  cadvisor:
    image: google/cadvisor:v0.33.0
    deploy:
      mode: global
      restart_policy:
        condition: any
        delay: 15s
        max_attempts: 15
    command: -docker_only
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /:/rootfs:ro
      - /var/run:/var/run:ro
      - /sys:/sys:ro
      - /var/lib/docker/:/var/lib/docker:ro
      - /dev/disk/:/dev/disk:ro
    networks:
      - ocariot
    logging:
      driver: json-file
      options:
        max-size: 100m

  # Host metrics collector
  node-exporter:
    image: prom/node-exporter:v0.18.1
    user: root
    deploy:
      mode: global
      restart_policy:
        condition: any
        delay: 15s
        max_attempts: 15
    environment:
      - NODE_ID={{.Node.ID}}
    entrypoint: /etc/node-exporter/docker-entrypoint.sh
    command:
      - '--path.rootfs=/host'
      - '--collector.textfile.directory=/etc/node-exporter/'
    volumes:
      - /:/host:ro,rslave
      - /etc/hostname:/etc/nodename:ro
    configs:
      - source: ocariot-init-node-exporter-config
        target: /etc/node-exporter/docker-entrypoint.sh
        mode: 0100
    networks:
      - ocariot
    logging:
      driver: json-file
      options:
        max-size: 100m

configs:
  ocariot-prometheus-config:
    file: config/prometheus/config.yml
  ocariot-prom-data-src-grafana-config:
    file: config/grafana/prom_data_src.yaml
  ocariot-nodes-dash-grafana-config:
    file: config/grafana/dashboards/nodes.json
  ocariot-services-dash-grafana-config:
    file: config/grafana/dashboards/services.json
  ocariot-prom-dash-grafana-config:
    file: config/grafana/dashboards/prometheus.json
  ocariot-dash-grafana-config:
    file: config/grafana/dashboards/dash_config.yml
  ocariot-init-node-exporter-config:
    file: config/node-exporter/docker-entrypoint.sh

volumes:
  grafana-data:
    name: ocariot-monitor-grafana-data
  prometheus-data:
    name: ocariot-monitor-prometheus-data

networks:
  ocariot:
    external: true
    name: ocariot
    driver: overlay
    driver_opts:
      encrypted: "true"