docker-compose.yml

version: '3.7'
services:
  fluentd:
    container_name: fluentd
    image: mrecco/fluentd:v1.3.3
    entrypoint:
    - '/bin/sh'
    - '-c'
    - |
      cp -r /conf/*.conf /fluentd/etc/
      sleep 3
      /conf/pre-entrypoint.sh
      exec tini -- /fluentd/entrypoint.sh
    environment:
      FLUENT_GRAYLOG_HOST: "graylog.example.com"
      FLUENT_GRAYLOG_PORT: "12201"
      FLUENT_GRAYLOG_PROTOCOL: "tcp"
      SPECIAL_TAG: "some_special_tag"
    links:
    - pglog-collector:pglog-collector # Start it at first
    stop_grace_period: 1s
    volumes:
    - "./volumes/fluentd:/conf:ro"
    - "./volumes/logrotate:/etc/logrotate:ro"
    - "/run/log/journal:/var/log/journal"
    - "/var/lib/docker/containers:/var/lib/docker/containers:ro"
    - "/var/log:/var/log"
    restart: on-failure

  pglog-collector:
    image: mrecco/pglog-collector:v1.1.0
    command:
    - "-f"
    - "/var/log/postgresql/postgresql.csv"
    stop_grace_period: 1s
    volumes:
    - "/var/log/postgresql:/var/log/postgresql:ro"
    logging:
      driver: "json-file"
      options:
        max-size: "64M" # 1G logs, for less than 2 hours of cold load
        max-file: "16"
    restart: on-failure

  pglog-rotation:
    image: mrecco/logrotate:v1.0.0
    links:
    - pglog-collector:pglog-collector # Start it at first
    stop_grace_period: 1s
    volumes:
    - "./volumes/logrotate:/etc/jobber:ro"
    restart: on-failure