连接拒绝从 Spring 启动应用程序容器到 Rabbitmq 容器
[英]Connection Refused to Rabbitmq container from Spring boot app Container
问题描述
I'm facing an error to connect from my spring boot app container to Rabbitmq.
我在从我的 spring 启动应用程序容器连接到 Rabbitmq 时遇到错误。
I have attached the two docker containers ( Rabbitmq and spring boot app) with bridge.network in my docker compose file:我在我的 docker 撰写文件中附加了两个 docker 容器（ Rabbitmq和spring 启动应用程序）和 bridge.network：
version: '3.3'
services:
rabbitmq:
image: rabbitmq:3.8-management-alpine
container_name: rabbitmq
ports:
- 5673:5673
- 5672:5672
- 15672:15672
networks:
- orchestrator-rabbitmq
environment:
- RABBITMQ_DEFAULT_USER=adminsi
- RABBITMQ_DEFAULT_PASS=test
orchestrator:
restart: on-failure
build:
context: .
dockerfile: Dockerfile-orchestrator
args:
VERSION: ${VERSION}
environment:
- spring_rabbitmq_host=rabbitmq
- spring_rabbitmq_port=5672
- spring_rabbitmq_username=adminsi
- spring_rabbitmq_password=test
container_name: orchestrator
depends_on:
- rabbitmq
networks:
- orchestrator-rabbitmq
ports:
- 7127:7127
networks:
orchestrator-rabbitmq:
external:
name: orchestrator-rabbitmq
the connection is refused by Rabbitmq when my Spring boot app attempts to connect to this latter.当我的 Spring 引导应用程序尝试连接到后者时，连接被 Rabbitmq 拒绝。 Below the log:日志下方：
11:35:22.176 [main] WARN oac.c.rabbitmq.RabbitMQProducer - Failed to create connection.
at com.rabbitmq.client.impl.SocketFrameHandlerFactory.create(SocketFrameHandlerFactory.java:60) orchestrator |
When I execute the below command inside my spring boot app container (orchestrator in my case) I get the following response:当我在我的 spring 启动应用程序容器（在我的例子中是协调器）中执行以下命令时，我得到以下响应：
nc -vz rabbitmq 5672
The response is:响应是：
Connection to rabbitmq (172.19.0.2) 5672 port [tcp/*] succeeded!
So the tcp connection is succeeded between the two containers, but when I curl to rabbitmq inside my orchestrator container with the credentials that are defined in the above docker compose file, I get the connection refused:因此，两个容器之间的 tcp 连接成功，但是当我使用上述 docker 撰写文件中定义的凭据在我的orchestrator 容器中将 curl 连接到 rabbitmq 时，连接被拒绝：
curl -u "adminsi:test" http://localhost:15672
But when I change localhost with rabbitmq as a host like below:但是当我将本地主机更改为 rabbitmq 作为主机时，如下所示：
curl -u "adminsi:test" http://rabbitmq:15672
The response is succeeded !响应成功！
Below my properties config in spring boot app ( orchestrator ):在 spring 启动应用程序 ( orchestrator ) 中我的属性配置下面：
spring.rabbitmq.host=rabbitmq
spring.rabbitmq.port=5672
spring.rabbitmq.username=adminsi
spring.rabbitmq.password=test
I'm using apache camel to publish messages in rabbitmq (below an example of camel route that read from an API and publish the response in rabbitmq topic):我正在使用 apache camel 在 rabbitmq 中发布消息（下面是从 API 读取并在 rabbitmq 主题中发布响应的 camel 路由示例）：
from("direct:OrchestratorDtstoreLoadDataRoute")
.routeId("orchestrator-dtstore-route")
.log(LoggingLevel.INFO, "Reading dtstore projects")
.removeHeaders("*")
.setHeader("Content-Type", () -> "application/json")
.setHeader("CamelHttpMethod", () -> "GET")
.setHeader("Authorization", () -> dtstoreToken)
.setHeader("x-apikey", () -> dtstoreXapiKey)
.recipientList(simple("cxfrs:{{cmdb.service.out.dtstore.url}}/projects"))
.log(LoggingLevel.DEBUG, "dtstore projects : ${body}")
.to(ExchangePattern.InOnly, "rabbitmq:q.cmdb.dtstore.projects?routingKey=dtstore&autoDelete=false&exchangeType=topic")
.end();
The Orchestrator Dockerfile:协调员 Dockerfile：
FROM openjdk:17.0.2-jdk-slim
ARG VERSION
ENV ORCHESTRATOR_VERSION=$VERSION
RUN apt-get update && apt-get install -y \
nano \
netcat \
iputils-ping \
curl \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /opt/app
COPY target/orchestrator-$ORCHESTRATOR_VERSION.jar .
EXPOSE 7127
ENTRYPOINT java -jar orchestrator-$ORCHESTRATOR_VERSION.jar
I run mvn clean package before running the docker-compose file.在运行 docker-compose 文件之前，我运行了 mvn clean package。
Thanks a lot for your help.非常感谢你的帮助。
1 个解决方案
解决方案1
0 已采纳 2022-03-29 16:44:54
At the end of the journey, I have found the solution, and yes after modifying the spring properties to these below new properties:在旅程结束时，我找到了解决方案，是的，在将 spring 属性修改为以下这些新属性之后：
camel.component.rabbitmq.hostname=localhost
camel.component.rabbitmq.port=5672
camel.component.rabbitmq.username=adminsi
camel.component.rabbitmq.password=test
In this manner, we can tell camel which is bounded to rabbitmq about the host, port, username, and password, before just rabbitmq knows these properties, as a result, camel cannot resolve the rabbitmq's host.通过这种方式，我们可以告诉绑定到 rabbitmq 的 camel 主机、端口、用户名和密码，而只有 rabbitmq 知道这些属性，因此 camel 无法解析 rabbitmq 的主机。
Then I changed the docker-compose environment for the orchestrator container:然后我为 orchestrator 容器更改了 docker-compose 环境：
version: '3.3'
services:
rabbitmq:
image: rabbitmq:3.8-management
container_name: rabbitmq
ports:
- 5673:5673
- 5672:5672
- 15672:15672
networks:
- orchestrator-rabbitmq
environment:
- RABBITMQ_DEFAULT_USER=adminsi
- RABBITMQ_DEFAULT_PASS=test
orchestrator:
restart: on-failure
build:
context: .
dockerfile: Dockerfile
args:
VERSION: ${VERSION}
environment:
- camel_component_rabbitmq_hostname=rabbitmq
- camel_component_rabbitmq_port=5672
- camel_component_rabbitmq_username=adminsi
- camel_component_rabbitmq_password=test
container_name: orchestrator
depends_on:
- rabbitmq
networks:
- orchestrator-rabbitmq
ports:
- 7127:7127
networks:
orchestrator-rabbitmq:
external:
name: orchestrator-rabbitmq
I have modified the rabbitmq's host property (camel_component_rabbitmq_hostname) to rabbitmq for container resolution.我已将 rabbitmq 的主机属性（camel_component_rabbitmq_hostname）修改为 rabbitmq 用于容器解析。
I hope that my solution works for you, enjoy !我希望我的解决方案适合你，享受！
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