public void TestFreeCgroupMemory(double value, string selfCGroup, string sysFsGroup, double?memLimit)
{
var mountInfo = GetTestFilePath(sysFsGroup);
var tempFile = TempFile.CreateWithContents(
sysFsGroup.StartsWith("/proc/sys_cgroup2")
? $"30 23 0:26 / {mountInfo} rw,nosuid,nodev,noexec,relatime shared:4 - cgroup2 cgroup rw,seclabel\n"
: $"39 30 0:35 / {mountInfo} rw,nosuid,nodev,noexec,relatime shared:10 - cgroup cgroup rw,seclabel,memory\n");
using (tempFile)
{
var provider = new CgroupMetricsProvider(GetTestFilePath(selfCGroup), tempFile.Path, new NoopLogger(), new List <WildcardMatcher>());
var samples = provider.GetSamples().ToList();
samples.First().Samples.Should().HaveCountGreaterOrEqualTo(2);
var inactiveFileBytesSample = samples.First().Samples.SingleOrDefault(s => s.KeyValue.Key == SystemProcessCgroupMemoryStatsInactiveFileBytes);
inactiveFileBytesSample.Should().NotBeNull();
var memUsageSample = samples.First().Samples.SingleOrDefault(s => s.KeyValue.Key == SystemProcessCgroupMemoryMemUsageBytes);
memUsageSample.Should().NotBeNull();
memUsageSample?.KeyValue.Value.Should().Be(value);
if (memLimit.HasValue)
{
var memLimitSample = samples.First().Samples.SingleOrDefault(s => s.KeyValue.Key == SystemProcessCgroupMemoryMemLimitBytes);
memLimitSample.Should().NotBeNull();
memLimitSample?.KeyValue.Value.Should().Be(memLimit);
}
}
}
public void OsTest()
{
var logger = new InMemoryBlockingLogger(LogLevel.Trace);
var cgroupMetricsProvider = new CgroupMetricsProvider(logger, new List <WildcardMatcher>());
var samples = cgroupMetricsProvider.GetSamples();
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
samples.Should().NotBeNullOrEmpty();
logger.Lines.Where(line => line.Contains("detected a non Linux OS, therefore Cgroup metrics will not be reported")).Should().BeNullOrEmpty();
}
else
{
samples.Should().BeNullOrEmpty();
logger.Lines.Where(line => line.Contains("detected a non Linux OS, therefore Cgroup metrics will not be reported")).Should().NotBeNullOrEmpty();
}
}
