Docker compose file to start a local arangodb cluster

docker-compose.yml

version: '2'
services:
  agency: 
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:5001 --agency.activate true --agency.size 1 --agency.supervision true

  coordinator:
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:8529 --cluster.my-address tcp://coordinator:8529 --cluster.my-local-info coord1  --cluster.my-role COORDINATOR --cluster.agency-endpoint tcp://agency:5001
      ports: ['8000:8529']
      depends_on:
          - agency
  coordinator2:
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:8529 --cluster.my-address tcp://coordinator2:8529 --cluster.my-local-info coord2  --cluster.my-role COORDINATOR --cluster.agency-endpoint tcp://agency:5001
      ports: ['8001:8529']
      depends_on:
          - agency

  db1:
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:8529 --cluster.my-address tcp://db1:8529 --cluster.my-local-info db1 --cluster.my-role PRIMARY --cluster.agency-endpoint tcp://agency:5001
      depends_on:
          - agency
  db2:
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:8529 --cluster.my-address tcp://db2:8529 --cluster.my-local-info db2 --cluster.my-role PRIMARY --cluster.agency-endpoint tcp://agency:5001
      depends_on:
          - agency
  db3:
      image: arangodb/arangodb
      environment:
          - ARANGO_ROOT_PASSWORD=openSesame
      command: --server.jwt-secret=openSesameJWT --database.password openSesame --server.endpoint tcp://0.0.0.0:8529 --cluster.my-address tcp://db3:8529 --cluster.my-local-info db3 --cluster.my-role PRIMARY --cluster.agency-endpoint tcp://agency:5001
      depends_on:
          - agency