How to use Ratel with Docker in version 21.03.1

Users Ratel
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# This Docker Compose file can be used to quickly bootup Dgraph Zero
# and Alpha in different Docker containers.

# It mounts /tmp/data on the host machine to /dgraph within the
# container. You can change /tmp/data to a more appropriate location.
# Run `docker-compose up` to start Dgraph.
version: "3.2"
services:
  zero:
    image: dgraph/dgraph:latest
    volumes:
      - /tmp/data:/dgraph
    ports:
      - 5080:5080
      - 6080:6080
    restart: on-failure
    command: dgraph zero --my=zero:5080
  alpha:
    image: dgraph/dgraph:latest
    volumes:
      - /tmp/data:/dgraph
    ports:
      - 8080:8080
      - 9080:9080
    restart: on-failure
    command: dgraph alpha --my=alpha:7080 --zero=zero:5080 --security whitelist=0.0.0.0/0
  ratel:
    image: dgraph/ratel
    ports:
      - 8000:8000
    command: dgraph-ratel

Enjoy

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