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Hearsay Junior DevOps Assignment

Introduction

Welcome to the DevOps assignment part of your Hearsay journey! We present you with a small set of tasks that will help us decide your skill level with various tools and technologies.

The assignment should take less than 2 hours to complete.

We created a basic setup for you which includes:

  • an API and tests for it
  • a Dockerfile
  • a docker-compose
  • a small Github Actions pipeline to do the tests, linting and the build of the docker image

Some of these have bugs which you should fix. If you are not familiar with some of these technologies don't be discouraged, we designed these tasks so that people without prior knowledge can still be able to do them.

Guidance

To help you we'll provide you with some docs that might be helpful while working on the assignment:

First steps

As a first step you should create a new private repository of your own from this template. To do so click the green Use this template button and then select Create a new repository, from then set yourself as Owner give a name to the repo and click the radio button next to Private to make it private.

Tasks

From here you can proceed with the following tasks:

  • Add a new URL endpoint to the Flask API with the /coffee route. It should return the text Let's make some tea! with the HTTP status code of 418 (hint: check the docs for this status code)
  • Build the Docker image described in the Dockerfile and tag it with a name that will be recognized by the docker-compose.yml
  • Update the pipeline by adding the build and tag command you used in the previous step to the .github/workflows/build-and-test.yml right after the run: command on line 22
  • As you might notice the current Dockerfile created a huge image, slim it down to a smaller size, you can combine multiple approaches to do this
  • There is a misconfiguration in the docker-compose.yml which stops Nginx from serving the API, fix that (you can use docker-compose up or docker-compose up -d [dont forget to use docker-compose down in this case] to start the stack). You can use curl -s 127.0.0.1:8080/coffee to check if your API endpoint and docker-compose works correctly
  • Push your changes to your feature branch, it will automatically kick off the pipeline (as can be seen in the Actions tab of the repo), both jobs should succeed, but the build might pass even if there is an issue, check the logs to verify this (there is some helpful output provided at the end of the Build app image job). If you see an issue feel free to work on the code further, every new push will start the pipeline again

Wrap up

When you successfully finished the assignment or your time has ran out it's time to submit the link to your repository while also sharing it with us. Go to Settings, in the left panel click Collaborators and add the following people:

  • csizmaziakiki
  • lopezm1
  • renegillson