Support fixed LGTM ports

[alesj]

This way a user can fix the LGTM ports, to always be the same.
See issue #46993.

[github-actions]

🙈 The PR is closed and the preview is expired.

[brunobat]

For some reason this test continues to fail io.quarkus.it.opentelemetry.grpc.HelloGrpcClientTest.testHello

[alesj]

@brunobat HelloGrpcClientTest passes for me locally -- the changes should not affect it

[brunobat]

This is still failing, @alesj. Let's debug it tomorrow on our meeting.

✖ io.quarkus.it.opentelemetry.grpc.HelloGrpcClientTest.testHello - History

[gastaldi]

Use OptionalInt instead

[brunobat]

Manually started a service with the grafana-lgtm and the following configs:

quarkus.observability.lgtm.grafana-port=3001
quarkus.observability.lgtm.otel-grpc-port=5317
quarkus.observability.lgtm.otel-http-port=5318

Got this log line on startup:
2025-08-06 17:20:42,890 INFO [org.tes.con.wai.str.HttpWaitStrategy] (ducttape-0) /ecstatic_newton: Waiting for 180 seconds for URL: http://localhost:32784/ (where port 32784 maps to container port 3001)

After the 180 seconds, docker container fails to start.

[alesj]

Manually started a service with the grafana-lgtm and the following configs:

quarkus.observability.lgtm.grafana-port=3001
quarkus.observability.lgtm.otel-grpc-port=5317
quarkus.observability.lgtm.otel-http-port=5318

Got this log line on startup: 2025-08-06 17:20:42,890 INFO [org.tes.con.wai.str.HttpWaitStrategy] (ducttape-0) /ecstatic_newton: Waiting for 180 seconds for URL: http://localhost:32784/ (where port 32784 maps to container port 3001)

After the 180 seconds, docker container fails to start.

This is strange, as it should always map to 3000 -- which is where the Grafana is running "internally".
And no idea why your fixed port of 3001 is not used.

When I run the "fixed" ports module / dir, it looks OK

• https://gist.githubusercontent.com/alesj/16c17e3efdf9291cacd2c1b7bc4bc5cd/raw/382a37659aaf0655835165e39f2e38f44344b8fc/gistfile1.txt

2025-08-07 11:42:10,627 INFO [org.tes.con.wai.str.HttpWaitStrategy] (ducttape-0) /great_solomon: Waiting for 180 seconds for URL: http://localhost:3001/ (where port 3001 maps to container port 3000)

As expected ...

[brunobat]

I took

quarkus.observability.lgtm.grafana-port=3001
quarkus.observability.lgtm.otel-grpc-port=5317
quarkus.observability.lgtm.otel-http-port=5318

from the documentation on the PR.

I think "support fixed lgtm ports" must be clarified. Is this to support user side fixed ports or container side?
If it's user side, quarkus.observability.lgtm.grafana-port=3001 should have been mapped to the correct container port.

[alesj]

I think "support fixed lgtm ports" must be clarified. Is this to support user side fixed ports or container side?

It's users, since I doubt we can change the container side -- those are "baked" into the image; unless there is some configuration option to change them.

If it's user side, quarkus.observability.lgtm.grafana-port=3001 should have been mapped to the correct container port.

Yeah, that's the weird part about your output -- you seem to get random user port, mapped to 3001 container port.
Where it should be as I get it -- 3001 maps to 3000.

[alesj]

I think "support fixed lgtm ports" must be clarified

I've added a bit more about this to the docs.

[holly-cummins]

Note that this will suffer from port conflicts in the case where a user has a couple of profiles which use the same port. That doesn't mean we shouldn't do it, it's just something to be aware of. The problem will go away when LGTM is moved to the new dev services model.

[brunobat]

Tried it again. It works for me now.

[quarkus-bot]

Status for workflow Quarkus Documentation CI

This is the status report for running Quarkus Documentation CI on commit e9fc7da.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

Warning

There are other workflow runs running, you probably need to wait for their status before merging.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit e9fc7da.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

---

Flaky tests - Develocity

⚙️ Gradle Tests - JDK 17 Windows

📦 integration-tests/gradle

❌ io.quarkus.gradle.BuildConfigurationTest.buildNoOverride - History

• Multiple Failures (1 failure) -- failure 1 -- [sub project 'without-configuration', package type 'fast-jar'] Expecting path: - org.assertj.core.error.AssertJMultipleFailuresError

org.assertj.core.error.AssertJMultipleFailuresError: 

Multiple Failures (1 failure)
-- failure 1 --
[sub project 'without-configuration', package type 'fast-jar'] 
Expecting path:
  D:\a\quarkus\quarkus\integration-tests\gradle\target\classes\build-configuration\without-configuration\build\quarkus-app\quarkus-run.jar
to exist (symbolic links were followed).

[brunobat]

Did a manual test drive and it worked as expected now.