docker-compose.yml

services:
  asyncdb-1:
    build: .
    container_name: asyncdb-1
    environment:
      # Where etcd answers, and this node as the other nodes reach it. Nodes talk to the API port
      # directly rather than through the nginx the browser uses.
      - ASYNCDB_ETCD=http://etcd:2379
      - ASYNCDB_NODE=http://asyncdb-1:8080
    ports:
      - 8080:80
    depends_on:
      - etcd
  asyncdb-2:
    build: .
    container_name: asyncdb-2
    environment:
      - ASYNCDB_ETCD=http://etcd:2379
      - ASYNCDB_NODE=http://asyncdb-2:8080
    ports:
      - 8081:80
    depends_on:
      - etcd
  asyncdb-3:
    build: .
    container_name: asyncdb-3
    environment:
      - ASYNCDB_ETCD=http://etcd:2379
      - ASYNCDB_NODE=http://asyncdb-3:8080
    ports:
      - 8082:80
    depends_on:
      - etcd
  etcd:
    image: quay.io/coreos/etcd:v3.5.9
    container_name: etcd
    environment:
      - ETCD_NAME=etcd-node
      - ETCD_DATA_DIR=/etcd-data
      - ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379
      - ETCD_ADVERTISE_CLIENT_URLS=http://etcd:2379
    ports:
      - 2379:2379
    volumes:
      - /tmp/etcd-data:/etcd-data:Z
    command:
      - /usr/local/bin/etcd