Tracetest in Action: Running Trace-Based Tests on the OpenTelemetry Demo App with Nomad

• malabi

  5 194 1.8 TypeScript

  Tracing Based JavaScript Assertions

  

Back in 2018, Trace-based testing was just an idea. Fast-forward to today: TBT is now a reality, thanks to Trace standardization à la OpenTelemetry (OTel) and Trace-based testing tools like Tracetest, Helios, and Malabi.

• tracetest-nomad

  2 10 10.0 HCL

  Nomad pack repo for tracetest

  

Tracetest came out in May 2022, and I first got my hands on Tracetest back in June 2022, so it was still pretty fresh! At the time, it integrated only with Jaeger. More specifically, it used the Jaeger API to pull OTel Traces from Jaeger to register them into Tracetest. You then used the UI to create trace-based tests.

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• traefik

  183 47,726 9.2 Go

  The Cloud Native Application Proxy

  

We use the Traefik load-balancer to expose our services, which we access as subdomains of localhost. In order ensure that we can access our Traefik-exposed services (and also the Traefik dashboard itself, you’ll need to add the following entries to /etc/hosts on your host machine:

• opentelemetry-demo

  18 1,416 9.5 TypeScript

  This repository contains the OpenTelemetry Astronomy Shop, a microservice-based distributed system intended to illustrate the implementation of OpenTelemetry in a near real-world environment.

  

I got to play around with these newer features last December, after a months-long hiatus, and it was really cool to see the evolution of the product. If you follow my work, you’ll know that I play in both the Kubernetes and Nomad worlds. Today, I’ll be taking you on a quick little guided tour of Tracetest, using Traces from the OpenTelemetry Demo App to give you a feel for how it works. The whole setup will be running on HashiCorp Nomad. \

• hashiqube

  3 233 10.0 JavaScript

  Discontinued HashiQube - All the Hashicorp products in a Container or VM for anyone to demo or practise with.

  

In this tutorial, I will show you how to install Tracetest (v0.9.1) and the OTel Demo App (v1.1.0) on Nomad running locally using HashiQube. I will then show you how to create and run a simple test with Tracetest, using a couple of Traces from the OTel Demo App.

• nomad-conversions

  3 18 5.1 HCL

  Repo containing conversions of Kubernetes and/or Docker Compose apps to Nomad jobspecs

Please note that there are no official Nomad jobspecs for either Tracetest or the OTel Demo App, so I went ahead and did the conversions myself from Kubernetes manifests to Nomad jobspecs. You can check out the jobspecs in this repo. If you’re curious as to how I went about the Kubernetes-to-Nomad conversion, you can check out my blog post on this topic. I also have a blog post dedicated to running the OTel Demo App on Nomad. If this tickles your fancy, you can check it out here.

• hashiqube

  3 10 3.6 JavaScript

  HashiQube - All Hashicorp products in a Virtualbox for anyone to demo or practise with. (by avillela)

In this section, we’ll be provisioning a local Hashi environment (including Nomad, Consul, and Vault) instance using HashiQube. Then, we’ll install Tracetest and the OTel Demo App on Nomad. Feel free to skip this section if you already have a working Hashi environment with Nomad, Consul, and Vault.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• opentelemetry-go

  126 4,765 9.6 Go

  OpenTelemetry Go API and SDK

  

Back in 2018, Trace-based testing was just an idea. Fast-forward to today: TBT is now a reality, thanks to Trace standardization à la OpenTelemetry (OTel) and Trace-based testing tools like Tracetest, Helios, and Malabi.

• gRPC

  201 40,685 9.9 C++

  The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

  

I’m a big fan of doing things programmatically, so let’s create our test from a YAML file. Per the Tracetest docs, you can create tests from HTTP requests, gRPC requests, cURL commands, and more. In our case, we’re creating our tests from a gRPC request, so our Tracetest test definition file YAML looks like this:

• tracetest

  53 875 9.8 Go

  🔭 Tracetest - Build integration and end-to-end tests in minutes, instead of days, using OpenTelemetry and trace-based testing.

  

For more on the ins and outs of Tracetest, be sure to check out the official docs here. For you visual learners, I’ve put together a quick little four-minute video highlighting the main things covered in this post. Be sure to check it out here.

• libcurl

  300 34,102 9.9 C

  A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features

  

I’m a big fan of doing things programmatically, so let’s create our test from a YAML file. Per the Tracetest docs, you can create tests from HTTP requests, gRPC requests, cURL commands, and more. In our case, we’re creating our tests from a gRPC request, so our Tracetest test definition file YAML looks like this:

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