docker-compose.yaml

version: "3.8"

services:
  nats:
    image: nats
    ports:
      - "8222:8222"
      - "4222:4222"
    command: "--cluster_name NATS --cluster nats://0.0.0.0:6222 --routes=nats://ruser:T0pS3cr3t@nats:6222 --name 'nats' -js -sd '/data' --http_port 8222 -c /nats.conf"
    networks: ["nats"]
    environment:
      - NATS_ADMIN_USER=${NATS_ADMIN_USER:-admin}
      - NATS_ADMIN_PASSWORD=${NATS_ADMIN_PASSWORD:-admin1984}
      - NATS_USERNAME=${NATS_USERNAME:-test}
      - NATS_PASSWORD=${NATS_PASSWORD:-test1984}
    volumes:
      - ./data/n-0:/data
      - ./nats.conf:/nats.conf

  nats-1:
    image: nats
    ports:
      - "4223:4222"
    command: "--cluster_name NATS --cluster nats://0.0.0.0:6222 --routes=nats://ruser:T0pS3cr3t@nats:6222 --name 'nats-1' -js -sd '/data' -c /nats.conf"
    networks: ["nats"]
    environment:
      - NATS_ADMIN_USER=${NATS_ADMIN_USER:-admin}
      - NATS_ADMIN_PASSWORD=${NATS_ADMIN_PASSWORD:-admin1984}
      - NATS_USERNAME=${NATS_USERNAME:-test}
      - NATS_PASSWORD=${NATS_PASSWORD:-test1984}
    depends_on: ["nats"]
    volumes:
      - ./data/n-1:/data
      - ./nats.conf:/nats.conf

  nats-2:
    image: nats
    ports:
      - "4224:4222"
    command: "--cluster_name NATS --cluster nats://0.0.0.0:6222 --routes=nats://ruser:T0pS3cr3t@nats:6222 --name 'nats-2' -js -sd '/data' -c /nats.conf"
    networks: ["nats"]
    environment:
      - NATS_ADMIN_USER=${NATS_ADMIN_USER:-admin}
      - NATS_ADMIN_PASSWORD=${NATS_ADMIN_PASSWORD:-admin1984}
      - NATS_USERNAME=${NATS_USERNAME:-test}
      - NATS_PASSWORD=${NATS_PASSWORD:-test1984}
    depends_on: ["nats"]
    volumes:
      - ./data/n-2:/data
      - ./nats.conf:/nats.conf

  nats-setup:
    restart: on-failure
    image: debian
    depends_on: ["nats", "nats-1", "nats-2"]
    networks: ["nats"]
    environment:
      - NATS_ADMIN_USER=${NATS_ADMIN_USER:-admin}
      - NATS_ADMIN_PASSWORD=${NATS_ADMIN_PASSWORD:-admin1984}
      - NATS_USERNAME=${NATS_USERNAME:-test}
      - NATS_PASSWORD=${NATS_PASSWORD:-test1984}
    entrypoint: >
      /bin/sh -c "
      apt update && \
      apt upgrade -y && \
      apt install wget watch -y && \
      wget https://github.com/nats-io/natscli/releases/download/v0.0.30/nats-0.0.30-arm64.deb && \
      dpkg -i nats-0.0.30-arm64.deb && \
      nats --version && \
      chmod +x /tmp/config.sh && bash -x /tmp/config.sh && \
      tail -F keepmerunning;
      "
    volumes:
      - ./nats-config.sh:/tmp/config.sh
      - ./nats-bashrc:/root/.bashrc

networks:
  nats:
    name: nats