https://github.com/mojski/otello

Otello example .NET integration with OpenTelemetry collector
https://github.com/mojski/otello

asp-net-core dotnet-aspire loki opentelemetry seq tempo

Last synced: 4 months ago
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Otello example .NET integration with OpenTelemetry collector

• Host: GitHub
• URL: https://github.com/mojski/otello
• Owner: mojski
• Created: 2024-10-02T15:09:00.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-02-25T19:15:17.000Z (12 months ago)
• Last Synced: 2025-10-24T10:56:14.261Z (4 months ago)
• Topics: asp-net-core, dotnet-aspire, loki, opentelemetry, seq, tempo
• Language: C#
• Homepage:
• Size: 151 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
## Otello web api

.Net poc app showing how to use open telemetry colector and seq. In this scenario server app is monitoring vendor angostic. App push logs to collector, then collector push data to seq (or other services in future).

```mermaid

graph TD

    Serwer["Server"] --"grpc 4317"--> OTEL["Otel Collector"]

    OTEL --"HTTP 5341"--> Seq

    OTEL --"grpc 18889"--> Aspire

    OTEL --"HTTP 3100"--> node_1

    OTEL --"grpc 4317"--> node_2

    node_1["Loki"]

    node_2["Tempo"]

    Seq["Seq"]

    Aspire["Aspire"]

```

Steps to run

- stop local windows seq if installed or other container that use port 5341 - running other seq instance 

- run docker-compose (docker compose up -d) (from infra directory)

- run application, you should see starting logs at localhost:5341 seq UI. 

- hit http://localhost:5080/api/test (GET) to trigger error log

## Seq

![alt text](/doc/readme_assets/seq.png)

## .NET Aspire

![alt text](/doc/readme_assets/asp.png)

## Grafana Loki

query used:

```

{service_name="Otello"}

```

![alt text](/doc/readme_assets/gl.png)

## Grafana Tempo

query used:

```

{resource.service.name="Otello" && name="GET /api/test"} 

```

![alt text](/doc/readme_assets/tempo.png)