Try to fix flaky VertxServerTest

[tobiasstadler]

What does this PR do?

Try to fix VertxServerTest by letting VertX choose a random port

Checklist

• This is something else
  • I have updated CHANGELOG.asciidoc

[github-actions]

👋 @tobiasstadler Thanks a lot for your contribution!

It may take some time before we review a PR, so even if you don’t see activity for some time, it does not mean that we have forgotten about it.

Every once in a while we go through a process of prioritization, after which we are focussing on the tasks that were planned for the upcoming milestone. The prioritization status is typically reflected through the PR labels. It could be pending triage, a candidate for a future milestone, or have a target milestone set to it.

[ghost]

💚 Build Succeeded

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Build stats

• Start Time: 2021-12-24T12:15:31.323+0000

• Duration: 65 min 32 sec

• Commit: 618a74c

Test stats 🧪

Test	Results
Failed	0
Passed	2635
Skipped	23
Total	2658

💚 Flaky test report

Tests succeeded.

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• run benchmark tests : Run the benchmark test.

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• run integration tests : Run the APM-ITs.

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[tobiasstadler]

@eyalkoren Would you mind running the tests again?

[eyalkoren]

@tobiasstadler it looks good, I believe this failure is related to #2354

@Mergifyio update

[mergify]

update

✅ Branch has been successfully updated

[tobiasstadler]

@eyalkoren Would you please run the /test and run elasticsearch-ci/docs

[eyalkoren]

/test

[eyalkoren]

run elasticsearch-ci/docs

[tobiasstadler]

Thank You!

[tobiasstadler]

Error processing tar file(exit status 1): write /var/cache/debconf/templates.dat-old: no space left on device
	at co.elastic.apm.servlet.PayaraIT.<init>(PayaraIT.java:37)

😢

[eyalkoren]

@Mergifyio update

/test

[mergify]

update

✅ Branch has been successfully updated

[eyalkoren]

/test

[tobiasstadler]

It finally passed the tests. Would you please merge it?

[jackshirazi]

Thank you!

[tobiasstadler]

Thank You!