public override bool Probe()
{
var uri = EnvUtils.GetEnv(ECS_CONTAINER_METADATA_URI);
if (uri == null)
{
return(false);
}
CheckAndSetFluentHost();
try
{
var parsedUri = new Uri(uri);
_ecsMetadata = _resourceFetcher.Fetch <ECSMetadata>(parsedUri);
FormatImageName();
return(true);
}
catch (Exception ex)
{
_logger.LogDebug("Failed to get response from: " + uri, ex);
}
return(false);
}
private string GetSampledTrace()
{
string traceId = EnvUtils.GetEnv(TRACE_ID);
if (traceId != null && traceId.Contains("Sampled=1", StringComparison.OrdinalIgnoreCase))
{
return(traceId);
}
return(string.Empty);
}
public void ConfigureContext(MetricsContext context)
{
AddProperty(context, "executionEnvironment", EnvUtils.GetEnv(AWS_EXECUTION_ENV));
AddProperty(context, "functionVersion", EnvUtils.GetEnv(LAMBDA_FUNCTION_VERSION));
var traceId = GetSampledTrace();
if (!string.IsNullOrEmpty(traceId))
{
AddProperty(context, "traceId", traceId);
}
}
private void CheckAndSetFluentHost()
{
var fluentHost = EnvUtils.GetEnv(FLUENT_HOST);
if (fluentHost == null || !string.IsNullOrEmpty(_configuration.AgentEndPoint))
{
return;
}
_fluentBitEndpoint = string.Format("tcp://%s:%d", fluentHost, Constants.DEFAULT_AGENT_PORT);
_configuration.AgentEndPoint = _fluentBitEndpoint;
_logger.LogInformation("Using FluentBit configuration. Endpoint: {}", _fluentBitEndpoint);
}
public bool Probe()
{
string functionName = EnvUtils.GetEnv(LAMBDA_FUNCTION_NAME);
return(functionName != null);
}