Docker安装RocketMQ-4.9.4

从rocketmq-docker项目构建rocketmq的镜像，rocketmq-docker的地址是https://github.com/apache/rocketmq-docker/，克隆项目：

git clone https://github.com/apache/rocketmq-docker.git

cd rocketmq-docker/image-build/

sh build-image.sh RMQ-VERSION BASE-IMAGE

RMQ-VERSION是RocketMQ的版本，可从https://archive.apache.org/dist/rocketmq/查看，BASE-IMAGE是制作镜像的操作系统，从[centos, alpine]之间选择。

输入：

sh build-image.sh 4.9.4 alpine

执行成功后运行docker images查看。

容器内的文件/home/rocketmq/rocketmq-4.9.4/conf/broker.conf，新增下面内容：

brokerIP1=192.168.233.132
namesrvAddr=192.168.233.132:9876

里面的ip地址是宿主机的ip，不加能启动但是发送消息会出错。

下面的启动中用到的宿主机目录的权限必须是777，否则会出错。

启动namesrv：

docker run -d -v /docker/rocketmq/namesrv/logs:/home/rocketmq/logs \
  --name mqnamesrv \
  -e "JAVA_OPT_EXT=-Xms512M -Xmx512M -Xmn128m" \
  -p 9876:9876 \
  apache/rocketmq:4.9.4-alpine \
  sh mqnamesrv

-d表示容器后台运行，-v path1:path2,path1表示宿主机的路径，path2表示容器的路径，-e "JAVA_OPT_EXT=-Xms512M -Xmx512M -Xmn128m"表示设置容器内的环境变量。-p表示宿主机和容器的端口映射。前一个表示宿主机的端口，后一个表示容器的端口。

启动broker：

docker run -d  -v /docker/rocketmq/broker/logs:/home/rocketmq/logs -v /docker/rocketmq/broker/store:/home/rocketmq/store \
  -v /docker/rocketmq/broker/conf:/home/rocketmq/conf \
  --name rmqbroker \
  --link mqnamesrv:namesrv \
  -e "JAVA_OPT_EXT=-Xms512M -Xmx512M -Xmn128m" \
  -e "NAMESRV_ADDR=namesrv:9876" \
  -p 10911:10911 -p 10912:10912 -p 10909:10909 \
  apache/rocketmq:4.9.4-alpine \
  sh mqbroker -c /home/rocketmq/rocketmq-4.9.4/conf/broker.conf

-c /home/rocketmq/rocketmq-4.9.4/conf/broker.conf是容器内的文件。

测试：

import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendCallback;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.springframework.boot.CommandLineRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

import java.nio.charset.StandardCharsets;

@Order(10)
@Component
@Slf4j
public class ProductCommandLine implements CommandLineRunner {
  private static final int size = 100;
  private static final String TOCPIC_NAME = "test1";
  private static final String TAG = "tag";
  private static final String CONTENT = "CONTENT";

  @Override
  public void run(String... args) throws Exception {
    DefaultMQProducer producer = new DefaultMQProducer("product_name", false);
    producer.setNamesrvAddr("192.168.233.132:9876");
    producer.start();

    producer.setSendMsgTimeout(60000);

    for (int i = 0; i < size; i++) {
      Message message =
          new Message(TOCPIC_NAME, TAG, (CONTENT + i).getBytes(StandardCharsets.UTF_8));
      producer.send(
          message,
          new SendCallback() {
            @Override
            public void onSuccess(SendResult sendResult) {
              log.info("send success;" + sendResult);
            }

            @Override
            public void onException(Throwable throwable) {
              log.error("send error;" + throwable);
            }
          });
    }

    Thread.sleep(10000);
    // producer.shutdown();
  }
}

用RocketMQ-dashboard查看：