How do I access Pulsar devservices in image based integration tests?

[jeloba]

When starting an integration test for testing an image artifact, both the app and the devservice container will be put inside a docker network. While the app exposes it's ports on the host, the devservice (Pulsar in my case) is not accessible.

For my tests, I need to access the devservice, both to set up parts of the test environment, and to send and receive test messages.

How do I access a devservice running inside a docker network form the integration test?

For context, I'm running the app with

./mvnw clean verify -DskipITs=false -Dquarkus.test.integration-test-profile=test-with-native-agent

[quarkus-bot[bot]]

/cc @geoand (devservices), @stuartwdouglas (devservices)

[geoand]

cc @ozangunalp

[jeloba]

@geoand @ozangunalp any advice on how to proceed?

[jeloba]

Just gave it a try with running on the host network (quarkus.test.container.network=host) but this time the application failed to start. Sees like the Pulsar devservice ran in host mode, while the app container was started on a different network.

[jeloba]

Looking through the code determining the network used for spawned containers, I came across this block here

        if (isDockerAppLaunch) {
            // obtain the ID of the shared network - this needs to be done after the augmentation has been run
            // or else we run into various ClassLoader problems
            try {
                Class<?> networkClass = curatedApplication.getOrCreateAugmentClassLoader()
                        .loadClass("org.testcontainers.containers.Network");
                Object sharedNetwork = networkClass.getField("SHARED").get(null);
                networkId = (String) networkClass.getMethod("getId").invoke(sharedNetwork);
            } catch (Exception e) {
                // use the network the use has specified or else just generate one if none is configured


                Optional<String> networkIdOpt = ConfigProvider.getConfig().getOptionalValue("quarkus.test.container.network",
                        String.class);
                if (networkIdOpt.isPresent()) {
                    networkId = networkIdOpt.get();
                } else {
                    networkId = "quarkus-integration-test-" + RandomStringUtils.insecure().next(5, true, false);
                    manageNetwork = true;
                }
            }
        }

Shouldn't the config quarkus.test.container.network override the SHARED test-containers network, instead of the other way round?

At least to me it looks like the Pulsar devservice is respecting the setting, while the app container is not.