Docker compose file for graylog 4. Demonstrates the bug at https://github.com/Graylog2/graylog2-server/issues/9550

docker-compose.yml

version: '3'
services:
  # MongoDB: https://hub.docker.com/_/mongo/
  mongo:
    image: mongo:4.4
    volumes:
      - mongo_data:/data/db
    networks:
      - graylog
  # Elasticsearch: https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.10.0
    volumes:
      - es_data:/usr/share/elasticsearch/data
    environment:
      - http.host=0.0.0.0
      - transport.host=localhost
      - network.host=0.0.0.0
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    deploy:
      resources:
        limits:
          memory: 1g
    networks:
      - graylog
  # Graylog: https://hub.docker.com/r/graylog/graylog/
  graylog:
    image: graylog/graylog:4.0
    volumes:
      - graylog_data:/usr/share/graylog/data
    environment:
      # CHANGE ME (must be at least 16 characters)!
      - GRAYLOG_PASSWORD_SECRET=somepasswordpepper
      # Password: admin
      - GRAYLOG_ROOT_PASSWORD_SHA2=8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918
      - GRAYLOG_HTTP_EXTERNAL_URI=http://127.0.0.1:9000/
      - DISABLE_TELEMETRY=1
    networks:
      - graylog
    depends_on:
      - mongo
      - elasticsearch
    ports:
      # Containers should only listen on 127.0.0.1, Apache is our TLS proxy
      # Graylog web interface and REST API
      - 127.0.0.1:9000:9000
      # Syslog TCP
      # - 1514:1514
      # Syslog UDP
      # - 1514:1514/udp
      # GELF TCP
      # - 12201:12201
      # GELF UDP
      # - 12201:12201/udp
      # GELF HTTP
      - 127.0.0.1:12202:12202
networks:
  graylog:
    driver: bridge
# Volumes for persisting data, see https://docs.docker.com/engine/admin/volumes/volumes/
volumes:
  mongo_data:
    driver: local
  es_data:
    driver: local
  graylog_data:
    driver: local

Did you find this file through a search engine or something? This file was uploaded by me as part of this issue: Graylog2/graylog2-server#9550. Specifically to demonstrate that bug.

Please don't run random dockerfiles from the internet!