experimental and definitely not recommended mayan-edms docker-compose.yml with elasticsearch and without rabbitmq

mayan-edms_docker-compose.yml

version: '3.7'

services:
  mayan:
    image: mayanedms/mayanedms:s4.8
    container_name: mayan-edms
    restart: always
    ports:
      - "8000:8000"
    volumes:
      - mayan_media:/var/lib/mayan
      - mayan_settings:/etc/mayan
    environment:
      MAYAN_APT_INSTALLS: "tesseract-ocr-deu"
      MAYAN_DATABASES: "{'default':{'ENGINE':'django.db.backends.postgresql','NAME':'mayan','PASSWORD':'mayandbpass','USER':'mayan','HOST':'db','PORT':'5432'}}"
      MAYAN_CELERY_BROKER_URL: redis://:mayanredispassword@redis:6379/0
      MAYAN_CELERY_RESULT_BACKEND: redis://:mayanredispassword@redis:6379/1
      MAYAN_LOCK_MANAGER_BACKEND: mayan.apps.lock_manager.backends.redis_lock.RedisLock
      MAYAN_LOCK_MANAGER_BACKEND_ARGUMENTS: "{'redis_url':'redis://:mayanredispassword@redis:6379/2'}"
      MAYAN_SEARCH_BACKEND: mayan.apps.dynamic_search.backends.elasticsearch.ElasticSearchBackend
      MAYAN_SEARCH_BACKEND_ARGUMENTS: "{'client_hosts':['http://elasticsearch:9200'],'client_http_auth':['elastic','mayanespassword']}"
    depends_on:
      - db
      - redis
      - elasticsearch

  db:
    command:
      - "postgres"
      - "-c"
      - "default_statistics_target=200"
      - "-c"
      - "maintenance_work_mem=128MB"
      - "-c"
      - "max_connections=150"
      - "-c"
      - "shared_buffers=512MB"
      - "-c"
      - "work_mem=32MB"
    image: postgres:14-alpine
    container_name: mayan-db
    restart: always
    environment:
      POSTGRES_DB: mayan
      POSTGRES_USER: mayan
      POSTGRES_PASSWORD: mayandbpass
    shm_size: 128m
    healthcheck:
      test: ["CMD", "pg_isready", "--username", "mayan"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    volumes:
      - mayan_db:/var/lib/postgresql/data

  redis:
    command:
      - redis-server
      - --appendonly
      - "no"
      - --databases
      - "3"
      - --maxmemory
      - "100mb"
      - --maxclients
      - "500"
      - --maxmemory-policy
      - "allkeys-lru"
      - --save
      - ""
      - --tcp-backlog
      - "256"
      - --requirepass
      - "mayanredispassword"
    image: redis:7.4-alpine
    container_name: mayan-redis
    restart: always
    volumes:
      - mayan_redis:/data

  elasticsearch:
    image: elasticsearch:7.17.25
    container_name: mayan-elasticsearch
    restart: always
    environment:
      - discovery.type=single-node
      - xpack.security.enabled=true
      - bootstrap.memory_lock=true
      - http.max_content_length=400mb
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - ELASTIC_PASSWORD=mayanespassword
    volumes:
      - mayan_elasticsearch:/usr/share/elasticsearch/data
    ulimits:
      memlock:
        soft: -1
        hard: -1

volumes:
  mayan_media:
  mayan_settings:
  mayan_db:
  mayan_redis:
  mayan_elasticsearch:

mayan-edms_readme.md

replace previous search backend to elasticsearch

In case of a conversion of an existing instance from another search basin to elasticsearch,

      MAYAN_SEARCH_BACKEND: mayan.apps.dynamic_search.backends.elasticsearch.ElasticSearchBackend
      MAYAN_SEARCH_BACKEND_ARGUMENTS: "{'client_hosts':['http://elasticsearch:9200']}"

or

      MAYAN_SEARCH_BACKEND: mayan.apps.dynamic_search.backends.elasticsearch.ElasticSearchBackend
      MAYAN_SEARCH_BACKEND_ARGUMENTS: "{'client_hosts':['http://elasticsearch:9200'],'client_http_auth':['elastic','mayanespassword']}"

the following commands after conversion via environment:

docker compose run --rm mayan run_command search_initialize
docker compose run --rm mayan run_command search_reindex

Replace "mayan" with the service name of your own docker compose stack