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opentelemetry-dotnet
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Prometheus example fixes (#2983)

This commit is contained in:
Cijo Thomas 2022-03-07 15:58:14 -08:00 committed by GitHub
parent bace2ce5d1
commit bac9263fa6
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 28 additions and 15 deletions
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18
examples/Console/Program.cs
View File

@ -27,14 +27,14 @@ namespace Examples.Console
/// Main method - invoke this using command line.
/// For example:
///
/// dotnet run -p Examples.Console.csproj console
/// dotnet run -p Examples.Console.csproj inmemory
/// dotnet run -p Examples.Console.csproj zipkin -u http://localhost:9411/api/v2/spans
/// dotnet run -p Examples.Console.csproj jaeger -h localhost -p 6831
/// dotnet run -p Examples.Console.csproj prometheus -p 9184 -d 2
/// dotnet run -p Examples.Console.csproj otlp -e "http://localhost:4317" -p "grpc"
/// dotnet run -p Examples.Console.csproj zpages
/// dotnet run -p Examples.Console.csproj metrics --help
/// dotnet run --project Examples.Console.csproj console
/// dotnet run --project Examples.Console.csproj inmemory
/// dotnet run --project Examples.Console.csproj zipkin -u http://localhost:9411/api/v2/spans
/// dotnet run --project Examples.Console.csproj jaeger -h localhost -p 6831
/// dotnet run --project Examples.Console.csproj prometheus -p 9464
/// dotnet run --project Examples.Console.csproj otlp -e "http://localhost:4317" -p "grpc"
/// dotnet run --project Examples.Console.csproj zpages
/// dotnet run --project Examples.Console.csproj metrics --help
///
/// The above must be run from the project root folder
/// (eg: C:\repos\opentelemetry-dotnet\examples\Console\).
@ -84,7 +84,7 @@ namespace Examples.Console
[Verb("prometheus", HelpText = "Specify the options required to test Prometheus")]
internal class PrometheusOptions
{
[Option('p', "port", Default = 9184, HelpText = "The port to expose metrics. The endpoint will be http://localhost:port/metrics/ (this is the port from which your Prometheus server scraps metrics from.)", Required = false)]
[Option('p', "port", Default = 9464, HelpText = "The port to expose metrics. The endpoint will be http://localhost:port/metrics/ (this is the port from which your Prometheus server scraps metrics from.)", Required = false)]
public int Port { get; set; }
}

25
examples/Console/TestPrometheusExporter.cs
View File

@ -36,7 +36,7 @@ internal class TestPrometheusExporter
internal static object Run(int port)
{
/* prometheus.yml
/* prometheus.yml example. Adjust port as per actual.
global:
scrape_interval: 1s
@ -45,7 +45,7 @@ internal class TestPrometheusExporter
scrape_configs:
- job_name: "opentelemetry"
static_configs:
- targets: ["localhost:9184"]
- targets: ["localhost:9464"]
*/
using var meterProvider = Sdk.CreateMeterProviderBuilder()
@ -83,10 +83,23 @@ internal class TestPrometheusExporter
}
});
System.Console.WriteLine($"PrometheusExporter is listening on http://localhost:{port}/metrics/");
System.Console.WriteLine($"Press any key to exit...");
System.Console.ReadKey();
token.Cancel();
System.Console.WriteLine($"PrometheusExporter exposes metrics via http://localhost:{port}/metrics/");
System.Console.WriteLine($"Press Esc key to exit...");
while (true)
{
if (System.Console.KeyAvailable)
{
var key = System.Console.ReadKey(true).Key;
if (key == ConsoleKey.Escape)
{
token.Cancel();
System.Console.WriteLine($"Exiting...");
break;
}
}
Task.Delay(200).Wait();
}
return null;
}