[BUG] org.opensearch.monitor.os.OsProbeTests > testLogWarnCpuMessageOnlyOnes FAILED

[owaiskazi19]

Describe the bug
Coming from #2061. The test is failing in docker for ubuntu.

REPRODUCE WITH: ./gradlew ':server:test' --tests "org.opensearch.monitor.os.OsProbeTests.testLogWarnCpuMessageOnlyOnes" -Dtests.seed=BDC5BBA6F734E6C6 -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=ar-SD -Dtests.timezone=Europe/Ulyanovsk -Druntime.java=17

org.opensearch.monitor.os.OsProbeTests > testLogWarnCpuMessageOnlyOnes FAILED
    Wanted but not invoked:
    logger.warn(<any string>);
    -> at org.opensearch.monitor.os.OsProbeTests.testLogWarnCpuMessageOnlyOnes(OsProbeTests.java:302)

    However, there was exactly 1 interaction with this mock:
    logger.debug(
        "error reading control group stats",
        java.nio.file.NoSuchFileException: /sys/fs/cgroup/cpuacct/docker/7550e3db5fa6ac2f81f2705282960c903563d569862219c3240ae1c31de0d648/cpuacct.usage
    );
    -> at org.opensearch.monitor.os.OsProbe.getCgroup(OsProbe.java:588)
        at __randomizedtesting.SeedInfo.seed([BDC5BBA6F734E6C6:7553200E882ADEC8]:0)
        at app//org.opensearch.monitor.os.OsProbeTests.testLogWarnCpuMessageOnlyOnes(OsProbeTests.java:302)

File not found: /sys/fs/cgroup/cpuacct/docker/7550e3db5fa6ac2f81f2705282960c903563d569862219c3240ae1c31de0d648/cpuacct.usage

To Reproduce
Steps to reproduce the behavior:

1. Pull opensearchstaging/ci-runner:ci-runner-ubuntu1804-build-v1
2. Run ./gradlew check

Expected behavior
./gradlew check should pass.

Plugins
Please list all plugins currently enabled.

Screenshots
If applicable, add screenshots to help explain your problem.

Host/Environment (please complete the following information):

• OS: Ubuntu (Docker image)
• Version: 18.04

[reta]

@owaiskazi19 I will take it, too annoying to see it failing :-\