docker-compose emqx

以下是使用docker-compose启动EMQ X集群的步骤：

1.首先，确保已经安装了Docker和Docker Compose。

2.创建一个名为`docker-compose.yml`的文件，并将以下内容复制到文件中：

version: '3'

services:
  emqx1:
    image: emqx/emqx:4.2.2
    container_name: emqx1
    environment:
      - EMQX_NAME=emqx1
      - EMQX_HOST=emqx1
      - EMQX_NODE__DIST_LISTEN_MAX=6379
      - EMQX_LISTENER__TCP__EXTERNAL=1883
      - EMQX_LISTENER__WS__EXTERNAL=8083
      - EMQX_LOADED_PLUGINS="emqx_management,emqx_dashboard,emqx_recon,emqx_retainer,emqx_rule_engine"
    ports:
      - "1883:1883"
      - "8083:8083"
      - "18083:18083"
    volumes:
      - ./emqx1/data:/opt/emqx/data
      - ./emqx1/log:/opt/emqx/log
      - ./emqx1/etc/plugins:/opt/emqx/etc/plugins
      - ./emqx1/etc/certs:/opt/emqx/etc/certs
    depends_on:
      - emqx2
      - emqx3

  emqx2:
    image: emqx/emqx:4.2.2
    container_name: emqx2
    environment:
      - EMQX_NAME=emqx2
      - EMQX_HOST=emqx2
      - EMQX_NODE__DIST_LISTEN_MAX=6379
      - EMQX_LISTENER__TCP__EXTERNAL=1884
      - EMQX_LISTENER__WS__EXTERNAL=8084
      - EMQX_LOADED_PLUGINS="emqx_management,emqx_dashboard,emqx_recon,emqx_retainer,emqx_rule_engine"
    volumes:
      - ./emqx2/data:/opt/emqx/data
      - ./emqx2/log:/opt/emqx/log
      - ./emqx2/etc/plugins:/opt/emqx/etc/plugins
      - ./emqx2/etc/certs:/opt/emqx/etc/certs
    depends_on:
      - emqx3

  emqx3:
    image: emqx/emqx:4.2.2
    container_name: emqx3
    environment:
      - EMQX_NAME=emqx3
      - EMQX_HOST=emqx3
      - EMQX_NODE__DIST_LISTEN_MAX=6379
      - EMQX_LISTENER__TCP__EXTERNAL=1885
      - EMQX_LISTENER__WS__EXTERNAL=8085
      - EMQX_LOADED_PLUGINS="emqx_management,emqx_dashboard,emqx_recon,emqx_retainer,emqx_rule_engine"
    volumes:
      - ./emqx3/data:/opt/emqx/data
      - ./emqx3/log:/opt/emqx/log
      - ./emqx3/etc/plugins:/opt/emqx/etc/plugins
      - ./emqx3/etc/certs:/opt/emqx/etc/certs

3.在终端中，进入包含`docker-compose.yml`文件的目录，并运行以下命令：

docker-compose up -d

这将启动一个包含三个EMQ X节点的集群。

4.要检查集群是否正在运行，请运行以下命令：

docker-compose ps

这将显示正在运行的容器列表。

5.要停止集群，请运行以下命令：

docker-compose down