RabbitMQ

1. 同步调用和异步调用

1.1 同步调用

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同步调用的优势:时效性强,等到结果后才返回–需要查询结果的通常用同步调用

同步调用的问题

  • 拓展性差–增加功能要改代码
  • 性能下降–调用链路长,每次都是阻塞等待上一个服务
  • 级联失败问题–一个服务挂掉,整个链路上的服务都出问题

1.2 异步调用

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流量削峰填谷–大量请求过来处理时快时慢,但是加了消息代理之后,消息存在消息代理中,根据消费者的消费速度消费消息

异步的使用场景

  • 对性能要求高

  • 对对方执行结果不关心,不影响当前业务

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2. AMQP

AMQP,即Advanced Message Queuing Protocol,一个提供统一消息服务的应用层标准高级消息队列协议,是应用层协议的一个开放标准,为面向消息的中间件设计。基于此协议的客户端与消息中间件可传递消息,并不受客户端/中间件不同产品,不同的开发语言等条件的限制。Erlang中的实现有RabbitMQ等。

队列默认消息进入是有序的,先进先出,先进入的先被消费

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3. RabbitMQ

3.1 安装

3.2 数据隔离

RabbitMQ有虚拟主机的概念,交换机和队列都有自己对应的虚拟主机

admin页面可以管理用户,不同用户有不同权限
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3.3 入门

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convertAndSend 传入队列名和消息

3.4 work模型

Work queues,任务模型。就是让多个消费者绑定到一个队列,共同消费队列中的消息

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3.5 Exchange交换机

消息只能被消费一次

没有交换机的时候,用户发消息进入队列,消息被消费就没有了

有交换机的时候,用户发消息到交换机,交换机把消息分发到队列

交换机的作用:

  • 接收publisher发送的消息
  • 将消息按照 路由规则RoutingKey 路由到与之绑定的队列

不同的服务要接收不同的消息,所以用不同的交换机---------比如支付服务之后,短信微服务要接收成功和失败的消息,而扣钱的服务只接收成功的消息

3.5.1 Fanout交换机-广播模式

Fanout Exchange会将接收到的消息广播到每一个跟其绑定的queue,所以也叫广播模式

3.5.2 Direct交换机-定向路由

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3.5.3 Topic交换机-主题

比direct更加灵活

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描述Direct交换机与Topic交换机的差异:

  • Topic交换机接收的消息RoutingKey可以是多个单词,以 . 分隔
  • Topic交换机与队列绑定的BindingKey可以指定通配符
  • #:代表0个或多个词
  • *:代表1个词

RabbitMQ为什么需要创建信道,为什么不是TCP直接通道

  1. TCP创建和销毁开销特别大
  2. 如果不用信道,大量请求过来,会造成性能的瓶颈
  3. 信道的原理是一条线程一条信道,多条线程多条通道同用一条TCP连接
  4. 一条TCP连接可能容纳无限的信道,处理高并发的请求不会造成性能瓶颈

3.6 声明 队列、交换机及其绑定关系

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3.6.1 基于Bean的方式

声明Fanout交换机
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队列、交换机和绑定关系的声明一般在消费者

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声明Direct交换机

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缺点:写很多bean

3.6.2 基于注解的方式

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3.6.3 消息转换器

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解决:注意,是都要配置

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4 RabbitMQ消息可靠性

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4.1 生产者可靠性

4.1.1 生产者重连机制

配置Template–在消费者中 配置listener
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4.1.2 生产者确认机制

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SpringAMQP实现生产者确认

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4.2 MQ的可靠性

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4.2.1 数据持久化

RabbitMQ实现数据持久化分为三个方面:

交换机持久化

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队列持久化

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消息的持久化–重启之后消息还在

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给消息设置属性值为非持久化消息

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设置为持久化消息

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4.2.2 LazyQueue

从RabbitMQ的3.6.0版本开始,就增加了Lazy Queue的概念,也就是惰性队列

惰性队列的特征如下:

  • 接收到消息之后直接存入磁盘而非内存(内存中只保留最近的消息,默认2048条)
  • 消费者要消费消息时才会从磁盘中读取并加载到内存
  • 支持数百万条的消息存储

在3.12版本之后,所有队列都是LazyQueue模式,无法更改

4.2.2.1 控制台方式设置

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4.2.2.2 基于Java代码实现

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4.2.2.3 基于注解的方式

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4.3 消费者可靠性

4.3.1 消费者确认机制

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SpringAMQP已经实现了消息确认功能,并允许我们通过配置文件选择ACK处理方式,有三种方式

  • none:不处理。即消息投递给消费者后立刻ACK,消息会立刻从MQ中删除,非常不安全,不建议使用
  • manual:手动模式。需要自己在业务代码中调用api,发送ACK或reject,存在业务入侵,但更加灵活
  • auto:自动模式。SpringAMQP利用AOP对我们的消息处理逻辑做了环绕增强,当业务正常执行时则自动返回ACK
    • 当业务出现异常时,根据异常判断返回不同结果
      • 如果是业务异常,会自动返回ack
      • 如果是消息处理或校验异常,自动返回reject----比如:消息转换异常

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一般设置auto,只有消息被确认,返回ack,消息才会删除,否则重新投递

4.3.2 失败重试机制

当消费者出现异常后,消息会不断requeue (重新入队) 到队列,再重新发送给消费者,然后再次异常,再次requeue,无限循环,导致mq的消息处理飙升,带来不必要的压力。

可以利用Spring的retry机制,在消费者出现异常时利用本地重试,而不是无限制的requeue到mq队列

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处理失败的消息有三种不同的实现策略:一般使用第三种

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代码—此配置类在消费者开启重试机制才生效

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image-20240122230652908

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在这里插入图片描述

消费者如何保证消息一定被消费?

  • 开启消息确认机制为auto,由Spring确认消息处理成功后返回ack,异常时返回nack
  • 开启消费者失败重试机制,并设置MessageRecover,多次重试失败后将消息投递到异常交换机,交由人工处理

4.3.3 业务幂等性

消费者消费几次消息不确定,要防止消息重复消费引起的问题

幂等性

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对于非幂等的业务要保证业务幂等性

4.3.3.1 利用令牌机制实现业务幂等,解决表单重复提交

​ 对于表单重复提交来说,可以在进入表单之前生成唯一标识发送到前端,标识在服务端保存一份,保存到redis,可以理解为一个token,然后在表单填完之后,在表单填完之后,提交时要携带token到服务端,判断token是否存在,如果存在则证明没问题,执行表单提交,提交之后删除token,如果表单重复提交,而token被删了则没有token,重复提交失败。

4.3.3.2 给消息加一个唯一id

MQ没有token,但是可以使用这个机制

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消息后置处理器

Java 消息后置处理器(MessagePostProcessor)是 Spring 框架中的一个重要概念,用于在发送和接收消息之前和之后对消息进行转换或修改。

Spring 中的消息后置处理器通常是在消息发送或接收的 MessageListenerContainer 中注册的,可以在消息发送或接收前后执行某些操作。例如,可以使用消息后置处理器在消息发送前将消息转换为特定格式,或在消息接收后将消息解密或验证。

以下是一个使用消息后置处理器将消息转换为 JSON 格式的示例:

public class JsonMessagePostProcessor implements MessagePostProcessor {
    private ObjectMapper objectMapper;

    public JsonMessagePostProcessor(ObjectMapper objectMapper) {
        this.objectMapper = objectMapper;
    }

    @Override
    public Message postProcessMessage(Message message) throws AmqpException {
        try {
            byte[] body = objectMapper.writeValueAsBytes(message.getBody());
            MessageProperties messageProperties = message.getMessageProperties();
            messageProperties.setContentType("application/json");
            messageProperties.setContentEncoding("UTF-8");
            return new Message(body, messageProperties);
        } catch (JsonProcessingException e) {
            throw new AmqpException("Failed to convert message to JSON", e);
        }
    }
}

在这里,我们实现了 MessagePostProcessor 接口,并重写了其中的 postProcessMessage() 方法。在这个方法中,我们将消息体转换为 JSON 字符串,并设置了消息属性的内容类型和编码方式。最后,返回新的消息对象。

要使用这个消息后置处理器,我们需要将它注册到 MessageListenerContainer 中。例如,可以在 Spring Boot 中的 RabbitListenerContainerFactory 中注册它:

@Bean
public RabbitListenerContainerFactory<?> rabbitListenerContainerFactory(ConnectionFactory connectionFactory,
                                                                       ObjectMapper objectMapper) {
    SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
    factory.setConnectionFactory(connectionFactory);
    factory.setMessageConverter(new Jackson2JsonMessageConverter(objectMapper));
    factory.setAfterReceivePostProcessors(new JsonMessagePostProcessor(objectMapper));
    return factory;
}

在这里,我们使用 setAfterReceivePostProcessors() 方法将消息后置处理器注册到 SimpleRabbitListenerContainerFactory 中。在此之后,当消息接收到时,它将自动应用这个消息后置处理器,将消息转换为 JSON 格式。

4.3.3.3 业务判断

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4.4 如何保证支付服务与交易服务之间的订单状态一致性

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4.5 延迟消息

安装 启动

实操

[root@xwk ~]# yum -y install gcc gcc-c++
Loaded plugins: fastestmirror
Determining fastest mirrors
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
base                                                      | 3.6 kB  00:00:00
extras                                                    | 2.9 kB  00:00:00
updates                                                   | 2.9 kB  00:00:00
Package gcc-4.8.5-44.el7.x86_64 already installed and latest version
Package gcc-c++-4.8.5-44.el7.x86_64 already installed and latest version
Nothing to do



[root@xwk ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Package device-mapper-persistent-data-0.8.5-3.el7_9.2.x86_64 already installed an                                                                                 d latest version
Package 7:lvm2-2.02.187-6.el7_9.5.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package yum-utils.noarch 0:1.1.31-54.el7_8 will be installed
--> Processing Dependency: python-kitchen for package: yum-utils-1.1.31-54.el7_8.                                                                                 noarch
--> Processing Dependency: libxml2-python for package: yum-utils-1.1.31-54.el7_8.                                                                                 noarch
--> Running transaction check
---> Package libxml2-python.x86_64 0:2.9.1-6.el7_9.6 will be installed
---> Package python-kitchen.noarch 0:1.1.1-5.el7 will be installed
--> Processing Dependency: python-chardet for package: python-kitchen-1.1.1-5.el7                                                                                 .noarch
--> Running transaction check
---> Package python-chardet.noarch 0:2.2.1-3.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================
 Package               Arch          Version                Repository      Size
=================================================================================
Installing:
 yum-utils             noarch        1.1.31-54.el7_8        base           122 k
Installing for dependencies:
 libxml2-python        x86_64        2.9.1-6.el7_9.6        updates        247 k
 python-chardet        noarch        2.2.1-3.el7            base           227 k
 python-kitchen        noarch        1.1.1-5.el7            base           267 k

Transaction Summary
=================================================================================
Install  1 Package (+3 Dependent packages)

Total download size: 863 k
Installed size: 4.3 M
Downloading packages:
(1/4): python-kitchen-1.1.1-5.el7.noarch.rpm              | 267 kB  00:00:00
(2/4): yum-utils-1.1.31-54.el7_8.noarch.rpm               | 122 kB  00:00:00
(3/4): libxml2-python-2.9.1-6.el7_9.6.x86_64.rpm          | 247 kB  00:00:01
(4/4): python-chardet-2.2.1-3.el7.noarch.rpm              | 227 kB  00:00:01
---------------------------------------------------------------------------------
Total                                               426 kB/s | 863 kB  00:02
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : python-chardet-2.2.1-3.el7.noarch                             1/4
  Installing : python-kitchen-1.1.1-5.el7.noarch                             2/4
  Installing : libxml2-python-2.9.1-6.el7_9.6.x86_64                         3/4
  Installing : yum-utils-1.1.31-54.el7_8.noarch                              4/4
  Verifying  : python-kitchen-1.1.1-5.el7.noarch                             1/4
  Verifying  : yum-utils-1.1.31-54.el7_8.noarch                              2/4
  Verifying  : libxml2-python-2.9.1-6.el7_9.6.x86_64                         3/4
  Verifying  : python-chardet-2.2.1-3.el7.noarch                             4/4

Installed:
  yum-utils.noarch 0:1.1.31-54.el7_8

Dependency Installed:
  libxml2-python.x86_64 0:2.9.1-6.el7_9.6   python-chardet.noarch 0:2.2.1-3.el7
  python-kitchen.noarch 0:1.1.1-5.el7

Complete!




[root@xwk ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror
adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to                                                                                  /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
[root@xwk ~]# yum makecache fast
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
base                                                      | 3.6 kB  00:00:00
docker-ce-stable                                          | 3.5 kB  00:00:00
extras                                                    | 2.9 kB  00:00:00
updates                                                   | 2.9 kB  00:00:00
(1/2): docker-ce-stable/7/x86_64/updateinfo               |   55 B  00:00:00
(2/2): docker-ce-stable/7/x86_64/primary_db               | 118 kB  00:00:00
Metadata Cache Created


[root@xwk ~]# yum -y install docker-ce
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 3:24.0.7-1.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-2                                                                                 4.0.7-1.el7.x86_64
--> Processing Dependency: containerd.io >= 1.6.4 for package: 3:docker-ce-24.0.7                                                                                 -1.el7.x86_64
--> Processing Dependency: libseccomp >= 2.3 for package: 3:docker-ce-24.0.7-1.el                                                                                 7.x86_64
--> Processing Dependency: docker-ce-cli for package: 3:docker-ce-24.0.7-1.el7.x8                                                                                 6_64
--> Processing Dependency: docker-ce-rootless-extras for package: 3:docker-ce-24.                                                                                 0.7-1.el7.x86_64
--> Processing Dependency: libcgroup for package: 3:docker-ce-24.0.7-1.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.2-1.911c772.el7_8 will be installed
--> Processing Dependency: policycoreutils-python for package: 2:container-selinu                                                                                 x-2.119.2-1.911c772.el7_8.noarch
---> Package containerd.io.x86_64 0:1.6.25-3.1.el7 will be installed
---> Package docker-ce-cli.x86_64 1:24.0.7-1.el7 will be installed
--> Processing Dependency: docker-buildx-plugin for package: 1:docker-ce-cli-24.0                                                                                 .7-1.el7.x86_64
--> Processing Dependency: docker-compose-plugin for package: 1:docker-ce-cli-24.                                                                                 0.7-1.el7.x86_64
---> Package docker-ce-rootless-extras.x86_64 0:24.0.7-1.el7 will be installed
--> Processing Dependency: fuse-overlayfs >= 0.7 for package: docker-ce-rootless-                                                                                 extras-24.0.7-1.el7.x86_64
--> Processing Dependency: slirp4netns >= 0.4 for package: docker-ce-rootless-ext                                                                                 ras-24.0.7-1.el7.x86_64
---> Package libcgroup.x86_64 0:0.41-21.el7 will be installed
---> Package libseccomp.x86_64 0:2.3.1-4.el7 will be installed
--> Running transaction check
---> Package docker-buildx-plugin.x86_64 0:0.11.2-1.el7 will be installed
---> Package docker-compose-plugin.x86_64 0:2.21.0-1.el7 will be installed
---> Package fuse-overlayfs.x86_64 0:0.7.2-6.el7_8 will be installed
--> Processing Dependency: libfuse3.so.3(FUSE_3.2)(64bit) for package: fuse-overl                                                                                 ayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3(FUSE_3.0)(64bit) for package: fuse-overl                                                                                 ayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3()(64bit) for package: fuse-overlayfs-0.7                                                                                 .2-6.el7_8.x86_64
---> Package policycoreutils-python.x86_64 0:2.5-34.el7 will be installed
--> Processing Dependency: setools-libs >= 3.3.8-4 for package: policycoreutils-p                                                                                 ython-2.5-34.el7.x86_64
--> Processing Dependency: libsemanage-python >= 2.5-14 for package: policycoreut                                                                                 ils-python-2.5-34.el7.x86_64
--> Processing Dependency: audit-libs-python >= 2.1.3-4 for package: policycoreut                                                                                 ils-python-2.5-34.el7.x86_64
--> Processing Dependency: python-IPy for package: policycoreutils-python-2.5-34.                                                                                 el7.x86_64
--> Processing Dependency: libqpol.so.1(VERS_1.4)(64bit) for package: policycoreu                                                                                 tils-python-2.5-34.el7.x86_64
--> Processing Dependency: libqpol.so.1(VERS_1.2)(64bit) for package: policycoreu                                                                                 tils-python-2.5-34.el7.x86_64
--> Processing Dependency: libapol.so.4(VERS_4.0)(64bit) for package: policycoreu                                                                                 tils-python-2.5-34.el7.x86_64
--> Processing Dependency: checkpolicy for package: policycoreutils-python-2.5-34                                                                                 .el7.x86_64
--> Processing Dependency: libqpol.so.1()(64bit) for package: policycoreutils-pyt                                                                                 hon-2.5-34.el7.x86_64
--> Processing Dependency: libapol.so.4()(64bit) for package: policycoreutils-pyt                                                                                 hon-2.5-34.el7.x86_64
---> Package slirp4netns.x86_64 0:0.4.3-4.el7_8 will be installed
--> Running transaction check
---> Package audit-libs-python.x86_64 0:2.8.5-4.el7 will be installed
---> Package checkpolicy.x86_64 0:2.5-8.el7 will be installed
---> Package fuse3-libs.x86_64 0:3.6.1-4.el7 will be installed
---> Package libsemanage-python.x86_64 0:2.5-14.el7 will be installed
---> Package python-IPy.noarch 0:0.75-6.el7 will be installed
---> Package setools-libs.x86_64 0:3.3.8-4.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================
 Package                 Arch   Version                   Repository        Size
=================================================================================
Installing:
 docker-ce               x86_64 3:24.0.7-1.el7            docker-ce-stable  24 M
Installing for dependencies:
 audit-libs-python       x86_64 2.8.5-4.el7               base              76 k
 checkpolicy             x86_64 2.5-8.el7                 base             295 k
 container-selinux       noarch 2:2.119.2-1.911c772.el7_8 extras            40 k
 containerd.io           x86_64 1.6.25-3.1.el7            docker-ce-stable  34 M
 docker-buildx-plugin    x86_64 0.11.2-1.el7              docker-ce-stable  13 M
 docker-ce-cli           x86_64 1:24.0.7-1.el7            docker-ce-stable  13 M
 docker-ce-rootless-extras
                         x86_64 24.0.7-1.el7              docker-ce-stable 9.1 M
 docker-compose-plugin   x86_64 2.21.0-1.el7              docker-ce-stable  13 M
 fuse-overlayfs          x86_64 0.7.2-6.el7_8             extras            54 k
 fuse3-libs              x86_64 3.6.1-4.el7               extras            82 k
 libcgroup               x86_64 0.41-21.el7               base              66 k
 libseccomp              x86_64 2.3.1-4.el7               base              56 k
 libsemanage-python      x86_64 2.5-14.el7                base             113 k
 policycoreutils-python  x86_64 2.5-34.el7                base             457 k
 python-IPy              noarch 0.75-6.el7                base              32 k
 setools-libs            x86_64 3.3.8-4.el7               base             620 k
 slirp4netns             x86_64 0.4.3-4.el7_8             extras            81 k

Transaction Summary
=================================================================================
Install  1 Package (+17 Dependent packages)

Total download size: 109 M
Installed size: 384 M
Downloading packages:
(1/18): audit-libs-python-2.8.5-4.el7.x86_64.rpm          |  76 kB  00:00:00
(2/18): container-selinux-2.119.2-1.911c772.el7_8.noarch. |  40 kB  00:00:00
(3/18): checkpolicy-2.5-8.el7.x86_64.rpm                  | 295 kB  00:00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-buildx-plugin-0                                                                                 .11.2-1.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-buildx-plugin-0.11.2-1.el7.x86_64.rpm is not installed
(4/18): docker-buildx-plugin-0.11.2-1.el7.x86_64.rpm      |  13 MB  00:00:23
(5/18): containerd.io-1.6.25-3.1.el7.x86_64.rpm           |  34 MB  00:00:58
(6/18): docker-ce-24.0.7-1.el7.x86_64.rpm                 |  24 MB  00:00:44
(7/18): docker-ce-cli-24.0.7-1.el7.x86_64.rpm             |  13 MB  00:00:22
(8/18): libcgroup-0.41-21.el7.x86_64.rpm                  |  66 kB  00:00:00
(9/18): libseccomp-2.3.1-4.el7.x86_64.rpm                 |  56 kB  00:00:00
(10/18): fuse3-libs-3.6.1-4.el7.x86_64.rpm                |  82 kB  00:00:00
(11/18): libsemanage-python-2.5-14.el7.x86_64.rpm         | 113 kB  00:00:00
(12/18): fuse-overlayfs-0.7.2-6.el7_8.x86_64.rpm          |  54 kB  00:00:01
(13/18): python-IPy-0.75-6.el7.noarch.rpm                 |  32 kB  00:00:00
(14/18): policycoreutils-python-2.5-34.el7.x86_64.rpm     | 457 kB  00:00:01
(15/18): setools-libs-3.3.8-4.el7.x86_64.rpm              | 620 kB  00:00:01
(16/18): docker-ce-rootless-extras-24.0.7-1.el7.x86_64.rp | 9.1 MB  00:00:17
(17/18): slirp4netns-0.4.3-4.el7_8.x86_64.rpm             |  81 kB  00:00:05
(18/18): docker-compose-plugin-2.21.0-1.el7.x86_64.rpm    |  13 MB  00:00:16
---------------------------------------------------------------------------------
Total                                               1.1 MB/s | 109 MB  01:37
Retrieving key from https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
Importing GPG key 0x621E9F35:
 Userid     : "Docker Release (CE rpm) "
 Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
 From       : https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : libseccomp-2.3.1-4.el7.x86_64                                1/18
  Installing : libcgroup-0.41-21.el7.x86_64                                 2/18
  Installing : slirp4netns-0.4.3-4.el7_8.x86_64                             3/18
  Installing : docker-buildx-plugin-0.11.2-1.el7.x86_64                     4/18
  Installing : setools-libs-3.3.8-4.el7.x86_64                              5/18
  Installing : audit-libs-python-2.8.5-4.el7.x86_64                         6/18
  Installing : fuse3-libs-3.6.1-4.el7.x86_64                                7/18
  Installing : fuse-overlayfs-0.7.2-6.el7_8.x86_64                          8/18
  Installing : python-IPy-0.75-6.el7.noarch                                 9/18
  Installing : libsemanage-python-2.5-14.el7.x86_64                        10/18
  Installing : docker-compose-plugin-2.21.0-1.el7.x86_64                   11/18
  Installing : 1:docker-ce-cli-24.0.7-1.el7.x86_64                         12/18
  Installing : checkpolicy-2.5-8.el7.x86_64                                13/18
  Installing : policycoreutils-python-2.5-34.el7.x86_64                    14/18
  Installing : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch          15/18
  Installing : containerd.io-1.6.25-3.1.el7.x86_64                         16/18
  Installing : docker-ce-rootless-extras-24.0.7-1.el7.x86_64               17/18
  Installing : 3:docker-ce-24.0.7-1.el7.x86_64                             18/18
  Verifying  : containerd.io-1.6.25-3.1.el7.x86_64                          1/18
  Verifying  : 3:docker-ce-24.0.7-1.el7.x86_64                              2/18
  Verifying  : checkpolicy-2.5-8.el7.x86_64                                 3/18
  Verifying  : docker-ce-rootless-extras-24.0.7-1.el7.x86_64                4/18
  Verifying  : docker-compose-plugin-2.21.0-1.el7.x86_64                    5/18
  Verifying  : libsemanage-python-2.5-14.el7.x86_64                         6/18
  Verifying  : 1:docker-ce-cli-24.0.7-1.el7.x86_64                          7/18
  Verifying  : slirp4netns-0.4.3-4.el7_8.x86_64                             8/18
  Verifying  : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch           9/18
  Verifying  : python-IPy-0.75-6.el7.noarch                                10/18
  Verifying  : libseccomp-2.3.1-4.el7.x86_64                               11/18
  Verifying  : policycoreutils-python-2.5-34.el7.x86_64                    12/18
  Verifying  : fuse3-libs-3.6.1-4.el7.x86_64                               13/18
  Verifying  : audit-libs-python-2.8.5-4.el7.x86_64                        14/18
  Verifying  : setools-libs-3.3.8-4.el7.x86_64                             15/18
  Verifying  : docker-buildx-plugin-0.11.2-1.el7.x86_64                    16/18
  Verifying  : fuse-overlayfs-0.7.2-6.el7_8.x86_64                         17/18
  Verifying  : libcgroup-0.41-21.el7.x86_64                                18/18

Installed:
  docker-ce.x86_64 3:24.0.7-1.el7

Dependency Installed:
  audit-libs-python.x86_64 0:2.8.5-4.el7
  checkpolicy.x86_64 0:2.5-8.el7
  container-selinux.noarch 2:2.119.2-1.911c772.el7_8
  containerd.io.x86_64 0:1.6.25-3.1.el7
  docker-buildx-plugin.x86_64 0:0.11.2-1.el7
  docker-ce-cli.x86_64 1:24.0.7-1.el7
  docker-ce-rootless-extras.x86_64 0:24.0.7-1.el7
  docker-compose-plugin.x86_64 0:2.21.0-1.el7
  fuse-overlayfs.x86_64 0:0.7.2-6.el7_8
  fuse3-libs.x86_64 0:3.6.1-4.el7
  libcgroup.x86_64 0:0.41-21.el7
  libseccomp.x86_64 0:2.3.1-4.el7
  libsemanage-python.x86_64 0:2.5-14.el7
  policycoreutils-python.x86_64 0:2.5-34.el7
  python-IPy.noarch 0:0.75-6.el7
  setools-libs.x86_64 0:3.3.8-4.el7
  slirp4netns.x86_64 0:0.4.3-4.el7_8

Complete!
[root@xwk ~]# systemctl start docker
[root@xwk ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
719385e32844: Pull complete
Digest: sha256:c79d06dfdfd3d3eb04cafd0dc2bacab0992ebc243e083cabe208bac4dd7759e0
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

[root@xwk ~]# docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
[root@xwk ~]# docker search rabbitmq
NAME                                      DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
rabbitmq                                  RabbitMQ is an open source multi-protocol me…   4938      [OK]
bitnami/rabbitmq                          Bitnami Docker Image for RabbitMQ               110                  [OK]
circleci/rabbitmq-delayed                 https://github.com/circleci/rabbitmq-delayed…   1
circleci/rabbitmq                         This image is for internal use                  0
bitnami/rabbitmq-cluster-operator                                                         1
rapidfort/rabbitmq                        RapidFort optimized, hardened image for Rabb…   9
bitnamicharts/rabbitmq                                                                    2
elestio/rabbitmq                          Rabbitmq, verified and packaged by Elestio      0
bitnamicharts/rabbitmq-cluster-operator                                                   0
masstransit/rabbitmq                      Contains the RabbitMQ management Docker imag…   12
itisfoundation/rabbitmq                                                                   0
nasqueron/rabbitmqadmin                   RabbitMQ management plugin CLI tool Lightwei…   1                    [OK]
clearlinux/rabbitmq                       RabbitMQ multi-protocol messaging broker wit…   0
itzg/rabbitmq-stomp                       Extension of the official rabbitmq image tha…   0                    [OK]
corpusops/rabbitmq                        https://github.com/corpusops/docker-images/     0
brightercommand/rabbitmq                  RabbitMQ management with delay plugin enabled   0
drud/rabbitmq                             rabbitmq                                        0                    [OK]
nasqueron/rabbitmq                        RabbitMQ wth management, MQTT and STOMP plug…   0                    [OK]
exozet/rabbitmq-delay-management          deprecated                                      1
uselagoon/rabbitmq                                                                        0
betterweb/rabbitmq                                                                        0
newrelic/k8s-nri-rabbitmq                 New Relic Infrastructure RabbitMQ Integratio…   0
uselagoon/rabbitmq-cluster                                                                0
betterweb/rabbitmq-swarm-cluster          https://gitlab.com/BetterCorp/public/rabbitm…   0
faucet/event-adapter-rabbitmq              Faucet rabbitmq event adaptor docker image …   0
[root@xwk ~]# docker search rabbitmq-management
NAME                                            DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
edtechfoundry/rabbitmq-management-shovel        RabbitMQ image using 3.6.6 with management a…   0
macintoshplus/rabbitmq-management               Based on rabbitmq:management whit python and…   10                   [OK]
theomathieu/rabbitmq-management-delayed                                                         0
penpublicreps/rabbitmq-management                                                               0
erikopa/rabbitmq-management-x-delayed-message   RabbitMQ Management Docker with delayed mess…   0
tiagomtotti/rabbitmq-management                                                                 3
timic/rabbitmq-management-delay-x               RabbitMQ with enabled management and delayed…   0                    [OK]
statewide/rabbitmq-management-mqtt              RabbitMQ + Management UI + MQTT                 0
almasry/rabbitmq-management                     rabbitmq-management docker file                 0
vyotov/rabbitmq-management                                                                      0
janatrix/rabbitmq-management-delay-x                                                            0
datatrion/rabbitmq-management-stomp-alpine                                                      0
cproinger/rabbitmq-management-monitoring                                                        0
diamanti/rabbitmq-management                                                                    0
invitado/rabbitmq-management                    RabbitMQ with delayed messages plugin           0                    [OK]
lixiaojunzy/rabbitmq-management-delayed         rabbitmq-management-delayed                     0
jatescher/rabbitmq-management                   RabbitMQ management pre-release images          0
pk3390/rabbitmq-management                                                                      0
jorgemarizan/rabbitmq-management-stomp-alpine   Alpine based Docker image for setting up Rab…   0                    [OK]
xvjialing/rabbitmq-management-alpine-mqtt       rabbitmq-management-alpine开启mqtt              0
seamusv/rabbitmq-management-mqtt                RabbitMQ Management with MQTT                   0
valourus/rabbitmq-management                                                                    0
yoransys/rabbitmq-management-operator                                                           0
kukmedis/rabbitmq-management-scheduler                                                          0
antonchernik/rabbitmq-management                                                                0
[root@xwk ~]# docker pull macintoshplus/rabbitmq-management
Using default tag: latest
latest: Pulling from macintoshplus/rabbitmq-management
51f5c6a04d83: Pull complete
7caf121ef6ce: Pull complete
15251c337a9c: Pull complete
62030bf89da6: Pull complete
04daca667d4c: Pull complete
eaa1a75dba32: Pull complete
7fde5fa62fab: Pull complete
53d15e8d48cb: Pull complete
6795f6786bbf: Pull complete
f28d9f880bec: Pull complete
3e83ffbe5f7f: Pull complete
4b72a6615452: Pull complete
97e4568e922f: Pull complete
47592ee02f76: Pull complete
6a04b53fbf65: Pull complete
442e1433375a: Pull complete
112adbb2a6fc: Pull complete
Digest: sha256:cd8fae9e67bba62f42d42fb311b5c9ce130572fafcbcaaa9575a3d8859c8641b
Status: Downloaded newer image for macintoshplus/rabbitmq-management:latest
docker.io/macintoshplus/rabbitmq-management:latest
 [root@xwk ~]#  docker run -d --name rabbitmq -e rabbitmq_default_user=guest -e rabbitmq_user_pass=guest -p 15672:15672 -p 5672:5672 c20
afb5e14173fe9347bc8f37c782bfcd227e7140471df02d2ed21c068d208a7beb
[root@xwk ~]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS         PORTS                                                                                                                                NAMES
afb5e14173fe   c20       "/docker-entrypoint.…"   10 seconds ago   Up 9 seconds   4369/tcp, 5671/tcp, 0.0.0.0:5672->5672/tcp, :::5672->5672/tcp, 15671/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp, :::15672->15672/tcp   rabbitmq
[root@xwk ~]#

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