在Dockers中对端点进行REST调用 [英] Making a REST Call to Endpoint in Dockers
问题描述
我正在构建一个Spring Boot应用程序，它具有一些不同的REST端点。可以将其本地打包并成功作为jar文件启动。在本地运行时，我可以通过 http：// localhost：8080 / endpoint？params 访问其端点。 。我的任务是现在准备将此应用程序运行在Docker之外。仍在我的本地计算机上工作，我已经基于Java：8映像创建了一个Dockers容器。在此容器中，我已经能够从.jar成功运行我的应用程序。我的问题是，当从Docker托管应用程序时，我不理解如何调用应用程序内的REST端点，因为从逻辑上讲localhost：8080 / endpoint不再响应该调用。
I am building a Spring Boot application, which has a few different REST endpoints. It can be locally packaged and launched as a jar file successfully. When running locally, I can access its endpoints via "http://localhost:8080/endpoint?params..". I was tasked with now preparing this application to run off of Dockers. Still working on my local machine, I have created a Dockers container based off of the Java:8 image. In this container, I have been able to run my application from the .jar successfully. My issue is, I do not understand how to call to the REST endpoints inside the application, when the application is hosted off of Docker, since logically localhost:8080/endpoint is no longer responsive to the call.
边信息：我的本地计算机是Windows，Docker映像是Ubuntu（最终将在Linux服务器上启动）。
Side information: My local computer is Windows, the Docker image is Ubuntu (eventually will be launched onto a Linux server).
更新：使用以下Dockerfile创建了新映像：
UPDATE: Created a new image with the following Dockerfile:
FROM openjdk:8
MAINTAINER My Name email@email.com
COPY . /usr/src/myapp
WORKDIR /usr/src/myapp
EXPOSE 8080
RUN javac Main.java
CMD ["java", "Main"]
同一问题，无法通过 http：// localhost：8080 / endpoint
任何帮助将不胜感激。谢谢！
Any help will be appreciated. Thank you!
推荐答案
您需要发布端口（不是 EXPOSE 它）。公开端口主要用于链接和服务上下文。在仅运行Docker容器的示例中，您需要简单地发布端口，以便主机可以使用它。您可以通过-发布或 -p 来做到这一点：
You need to publish the port (not EXPOSE it). Exposing a port is largely used for links and service contexts. In your example of just running a Docker container, you need to simply publish the port so it is available from the host. You do this with --publish or -p:
docker run -d --name myapp -p 8080:8080 myappimage
然后，您可以访问主机IP地址上端口8080的应用程序（Windows上的Docker和Mac上的Docker运行一个代理，该代理应允许 localhost：8080 起作用）。
Then you can access the application at port 8080 on the host IP address (Docker on Windows and Docker on Mac run a proxy that should allow localhost:8080 to work).
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