docker-zulip/docker-compose.yml

services:
  database:
    image: "zulip/zulip-postgresql:14"
    restart: unless-stopped
    environment:
      POSTGRES_DB: "zulip"
      POSTGRES_USER: "zulip"
      ## Note that you need to do a manual `ALTER ROLE` query if you
      ## change this on a system after booting the postgres container
      ## the first time on a host.  Instructions are available in README.md.
      POSTGRES_PASSWORD: "REPLACE_WITH_SECURE_POSTGRES_PASSWORD"
    volumes:
      - "postgresql-14:/var/lib/postgresql/data:rw"
  memcached:
    image: "memcached:alpine"
    restart: unless-stopped
    command:
      - "sh"
      - "-euc"
      - |
        echo 'mech_list: plain' > "$$SASL_CONF_PATH"
        echo "zulip@$$HOSTNAME:$$MEMCACHED_PASSWORD" > "$$MEMCACHED_SASL_PWDB"
        echo "zulip@localhost:$$MEMCACHED_PASSWORD" >> "$$MEMCACHED_SASL_PWDB"
        exec memcached -S
    environment:
      SASL_CONF_PATH: "/home/memcache/memcached.conf"
      MEMCACHED_SASL_PWDB: "/home/memcache/memcached-sasl-db"
      MEMCACHED_PASSWORD: "REPLACE_WITH_SECURE_MEMCACHED_PASSWORD"
  rabbitmq:
    image: "rabbitmq:4.0.7"
    restart: unless-stopped
    environment:
      RABBITMQ_DEFAULT_USER: "zulip"
      RABBITMQ_DEFAULT_PASS: "REPLACE_WITH_SECURE_RABBITMQ_PASSWORD"
    volumes:
      - "rabbitmq:/var/lib/rabbitmq:rw"
  redis:
    image: "redis:alpine"
    restart: unless-stopped
    command:
      - "sh"
      - "-euc"
      - |
        echo "requirepass '$$REDIS_PASSWORD'" > /etc/redis.conf
        exec redis-server /etc/redis.conf
    environment:
      REDIS_PASSWORD: "REPLACE_WITH_SECURE_REDIS_PASSWORD"
    volumes:
      - "redis:/data:rw"
  zulip:
    image: "zulip/docker-zulip:11.1-0"
    restart: unless-stopped
    build:
      context: .
      args:
        ## Change these if you want to build zulip from a different repo/branch
        ZULIP_GIT_URL: https://github.com/zulip/zulip.git
        ZULIP_GIT_REF: "11.1"
        ## Set this up if you plan to use your own CA certificate bundle for building
        # CUSTOM_CA_CERTIFICATES:
    ports:
      - "25:25"
      - "80:80"
      - "443:443"
    environment:
      ## See https://github.com/zulip/docker-zulip#configuration for
      ## details on this section and how to discover the many
      ## additional settings that are supported here.
      DB_HOST: "database"
      DB_HOST_PORT: "5432"
      DB_USER: "zulip"
      SSL_CERTIFICATE_GENERATION: "self-signed"
      SETTING_MEMCACHED_LOCATION: "memcached:11211"
      SETTING_RABBITMQ_HOST: "rabbitmq"
      SETTING_REDIS_HOST: "redis"
      SECRETS_email_password: "123456789"
      ## These should match RABBITMQ_DEFAULT_PASS, POSTGRES_PASSWORD,
      ## MEMCACHED_PASSWORD, and REDIS_PASSWORD above.
      SECRETS_rabbitmq_password: "REPLACE_WITH_SECURE_RABBITMQ_PASSWORD"
      SECRETS_postgres_password: "REPLACE_WITH_SECURE_POSTGRES_PASSWORD"
      SECRETS_memcached_password: "REPLACE_WITH_SECURE_MEMCACHED_PASSWORD"
      SECRETS_redis_password: "REPLACE_WITH_SECURE_REDIS_PASSWORD"
      SECRETS_secret_key: "REPLACE_WITH_SECURE_SECRET_KEY"
      SETTING_EXTERNAL_HOST: "localhost.localdomain"
      SETTING_ZULIP_ADMINISTRATOR: "admin@example.com"
      SETTING_EMAIL_HOST: "" # e.g. smtp.example.com
      SETTING_EMAIL_HOST_USER: "noreply@example.com"
      SETTING_EMAIL_PORT: "587"
      ## It seems that the email server needs to use ssl or tls and can't be used without it
      SETTING_EMAIL_USE_SSL: "False"
      SETTING_EMAIL_USE_TLS: "True"
      ## Uncomment to enable the incoming email gateway.  You will need to
      ## ensure that email to emaildomain.example.com is routed to this host
      ## (e.g. via MX record)
      # SETTING_EMAIL_GATEWAY_PATTERN: "%s@emaildomain.example.com"
      ZULIP_AUTH_BACKENDS: "EmailAuthBackend"
      ## Uncomment this when configuring the mobile push notifications service
      # SETTING_ZULIP_SERVICE_PUSH_NOTIFICATIONS: "True"
      # SETTING_ZULIP_SERVICE_SUBMIT_USAGE_STATISTICS: "True"

      ## If you're using a reverse proxy, you'll want to provide the
      ## comma-separated set of IP addresses to trust here.
      # LOADBALANCER_IPS: ""

      ## By default, files uploaded by users and profile pictures are
      ## stored directly on the Zulip server. You can configure files
      ## to be stored in Amazon S3 or a compatible data store
      ## here. See docs at:
      ##
      ##   https://zulip.readthedocs.io/en/latest/production/upload-backends.html
      ##
      ## If you want to use the S3 backend, you must set
      ## SETTING_LOCAL_UPLOADS_DIR to None as well as configuring the
      ## other fields.
      # SETTING_LOCAL_UPLOADS_DIR: "None"
      # SETTING_S3_AUTH_UPLOADS_BUCKET: ""
      # SETTING_S3_AVATAR_BUCKET: ""
      # SETTING_S3_ENDPOINT_URL: "None"
      # SETTING_S3_REGION: "None"
    volumes:
      - "zulip:/data:rw"
    ulimits:
      nofile:
        soft: 1000000
        hard: 1048576
volumes:
  zulip:
  postgresql-14:
  rabbitmq:
  redis: