version: "3.8"

services:

  scheduler:
    image: daskdev/dask
    command: ["dask-scheduler"]
    ports:
      - "8786:8786"
      - "8787:8787"
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.role == manager
      restart_policy:
        condition: on-failure

  notebook:
    image: daskdev/dask-notebook
    ports:
      - "8888:8888"
    volumes:
      - /home/presto/fig/dask/data/jupyter:/home/jovyan/.jupyter
      - /home/presto/fig/dask/data/work:/home/jovyan/work
      - /opt/conda/lib/python3.7/site-packages
    environment:
      - DASK_SCHEDULER_ADDRESS=tcp://scheduler:8786
      - EXTRA_PIP_PACKAGES=dateparser parsel
    depends_on:
      - scheduler
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.role == manager
      restart_policy:
        condition: on-failure

  worker:
    image: daskdev/dask
    command: ["dask-worker", "tcp://scheduler:8786"]
    depends_on:
      - scheduler
    deploy:
      replicas: 2
      placement:
        max_replicas_per_node: 1
        constraints:
          - node.role == worker
      restart_policy:
        condition: on-failure