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This is not a duplicate of From inside of a Docker container, how do I connect to the localhost of the machine?. I have already attempted the suggestions in the aforementioned thread, and I know how to fix this problem in general. This problem seems to be specific to quarkus applications. I manage to make everything work except for the quarkus server.

Context

1. I have obtained a quarkus application template from https://code.quarkus.io/, of which includes a shell file called mvnw, which I can use to start a development server by executing ./mvnw quarkus:dev -Dquarkus.http.host=0.0.0.0 -Dquarkus.http.port=9000 -Ddebug=9001 in the host terminal.
2. I can now go to http://localhost:9000 in the browser. I can also do curl localhost:9000 and see that I get the HTML/CSS/JS code.

Issue

I cannot reach the quarkus server from within a docker container. I have tried:

1. Run a base curl container: docker run --rm -it --name curl --entrypoint sh curlimages/curl:latest
2. From within the container I attempt the following:
   • curl host.docker.internal:9000 -> Connection refused
   • curl localhost:9000 -> Connection refused
   • curl (the machine host name here):9000 -> Operation timed out (this happens for all ports)
   • Run the container with --network=host, and use curl localhost:9000 -> Connection refused
   • Various other suggestions from the post mentioned at the top, but all get connection refused

However, I can connect to the JVM debug port using curl host.docker.internal:9001 (Empty reply from server), and I can also connect to a Python http fileserver (hosted from host) using the host.docker.internal hostname. It seems to be that it is only the quarkus server that I cannot connect to.

What I want: A reliable way to connect to the host's quarkus container from within a docker container

System info

• OS: Windows 11 21H2 22000.493 , but I do everything within WSL2 (Ubuntu 20.04.3 LTS).
• CPU: Intel Core i7-10850H

I recently played around with Quarkus and wanted to try out using JPMS modules alongside with it.

So I went to code.quarkus.io and generated a basic application with just the RESTEasy JAX-RS extension enabled. After unpacking, all I did was include a module-info.java in src/main/java and add the requires java.ws.rs; line.

Now, building the Jar with Maven works fine. Starting the live coding with the quarkus:dev mode works fine too. But when I change some of my code and try another request, I get an error page stating java.lang.RuntimeException: Compilation failed[error: module not found: java.ws.rs].

To me, it looks like the dev mode of Quarkus does not set the module path correctly. I already did a fair bit of searching for a solution but came up short. Am I missing a configuration or is this a bug/missing feature?

I am using a MacOS Catalina 10.15.7 machine running behind a firewall.

I started evaluating Micronaut and Quarkus as an alternative to Spring boot and one of the main reasons for this is the ability to compile to native image.

To be able to do this I had to install GraalVM. I followed the instructions from here GraalVM Community Edition 20.3.0 and downloaded graalvm-ce-java11-darwin-amd64-20.3.0.tar.gz, I unzipped it in a folder of my choice then exported /Users/myId/work/dev/graalvm/graalvm-ce-java11-20.3.0/Contents/Home/ as GRAALVM_HOME and added GRALLVM_HOME\bin in my path.

After this I went to https://code.quarkus.io/ and uploaded a Hello World Quarkus project to be build with gradle (6.8).

When I run gardle build everything builds OK. When I run gradle quarkusDev the application starts OK and I can hit the Hello World end point.

However when I am trying to build the native image with gradle build -Dquarkus.package.type=native I am getting the below exception

I have created a new quarkus project using online tool with kotlin extenstion. I am able to execute ./mvnw compile quarkus:dev and curl on http://localhost:8080. However I am getting following exception while executing ./mvnw test.