/// <summary>
/// Update data for the metrics. Called immediately before the metrics are scraped.
/// </summary>
public void UpdateMetrics()
{
foreach (var(name, value) in MemInfoParser.Parse())
{
if (_metrics.TryGetValue(name, out var gauge))
{
gauge.Set(value);
}
}
}
/// <summary>
/// Creates the Prometheus metric.
/// </summary>
/// <param name="factory">Factory to create metric using</param>
public void CreateMetrics(MetricFactory factory)
{
var metrics = new Dictionary <string, Gauge>();
foreach (var(name, _) in MemInfoParser.Parse())
{
var cleanName = name.Replace('(', '_').Replace(")", "");
cleanName = $"node_memory_{cleanName}_bytes";
metrics[name] = factory.CreateGauge(cleanName, $"Memory information field {name}");
}
_metrics = metrics;
}
public void ParsesMemInfo()
{
const string input = @"
MemTotal: 16470140 kB
MemFree: 3690788 kB
Buffers: 34032 kB
Cached: 188576 kB
Active(anon): 103104 kB
Inactive(anon): 17440 kB
Active(file): 64452 kB
Dirty: 0 kB
HugePages_Total: 0
";
var result = MemInfoParser.Parse(input);
result.Should().BeEquivalentTo(new[]
