[CI] ConfigurationTests test20HostnameSubstitution failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-packaging #4888 / ubuntu-1804_packaging-tests-unix
• elasticsearch-periodic-packaging #4888 / rhel-7_packaging-tests-unix
• elasticsearch-periodic-packaging #4888 / oraclelinux-7_packaging-tests-unix
• elasticsearch-periodic-packaging #4888 / sles-12_packaging-tests-unix

Reproduction Line:

null

Applicable branches: main

Reproduces locally?: N/A

Failure History: See dashboard&_a=(controlGroupState:(initialChildControlState:('0c0c9cb8-ccd2-45c6-9b13-96bac4abc542':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:task.keyword,order:0,selectedOptions:!(),title:'GradleTask',type:optionsListControl),'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:className.keyword,order:1,selectedOptions:!(org.elasticsearch.packaging.test.ConfigurationTests),title:'Suite',type:optionsListControl),'144933da-5c1b-4257-a969-7f43455a7901':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:name.keyword,order:2,selectedOptions:!(test20HostnameSubstitution),title:'Test',type:optionsListControl)))))

Failure Message:

java.lang.AssertionError: Startup command should succeed. Stderr: [exitCode = [1] stdout = [] stderr = [Job for elasticsearch.service failed because the control process exited with error code.
See "systemctl status elasticsearch.service" and "journalctl -xe" for details.]]
Expected: <0>
     but: was <1>

Issue Reasons:

• [main] 2 consecutive failures in test test20HostnameSubstitution
• [main] 4 failures in test test20HostnameSubstitution (0.6% fail rate in 686 executions)

Note: This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-delivery (Team:Delivery)