devops-engineer

DevOps Engineer

This challenge consists of multiple practical parts, As a DevOps engineer you need to always read, explore and implement multiple solutions. That's why we tried creating a simple practical task.

Git Challenge

• Git is a wide used distributed version control system in which you will need to interact with and use daily.

• Git is about practicing all the way, So let's jump into action for this challenge.

Git Challenge #1

Steps

• First of all, Go through this link and start exploring the lessons if you don't have prior Git knowledge.

  • This app is made for testing and learning purposes to simulate and visualize your git commits

• We need to reproduce the following Git commits shown in the PNG. Note: You need to open the Sandbox mode in order to be able to test and examine in a free session.

You can refer to their GitHub repo for more info about the product and how to use.

Expected Output

• You should provide an image that contains the commits and their outputs.
• You should also provide the commits in a text file as well, So we are able to reproduce and trace your commits.

Git Challenge #2

Steps

• Second Git challenge is that you need to write a one page blog about Git and Git workflows.
  • Try to make it neat as much as possible by separating the post into multiple paragraphs
  • You can consult all the external resources to help you understand and right the blog without copying exact paragraphs from the internet.
  • Any novice engineer should understand what is Git and Git workflows from your blog.

Expected Output

• You should provide a one page blog written as Text/Markdown separated as paragraphs.
  • Try to write as much lines as possible from your understanding to what you have read or know. Avoid copy paste already written stuff.
  • Don't forget as we need this to assess your written English skills for establishing the documentation.

Compress all files and folders from the two challenges with the following formula YourName-Git-challenge-date.zip

Containers

Containers are currently used heavily in all modern cloud based applications. And as a DevOps engineer you will be working with containers and orchestration tools daily.

Containers Challenge #1

Steps

• Write a simple app that calculates the factorial of a random number between 1-10 in any language (C, C++, NodeJs, Golang, Rust or Python etc...)
• After you get your code running, You need to Dockerize the application.
• Please mention any best practices you used or can be used for dockerizing the application in terms of container security, Image size and Image layers caching

Expected Output

• You should provide the application code file.
• You should also provide the Dockerfile.
• You should provide a Markdown file stating the container best practices part.

Containers Challenge #2 (Bonus Challenge)

Steps

• You need to deploy this application on a k8s cluster

Expected Output

• You should deliver k8s manifest files that you used to deploy the application on cluster.
  • We assume that you are using a ready provisioned cluster, If not please specify what is your k8s installation and how did you manage to do it in a Mark down file.

Compress all files and folders from the two challenges with the following formula YourName-Containers-challenge-date.zip

General Linux & Debugging Questions

Challenge #1

Steps

• Imagine that you are working as a DevOps engineer for a product based company and you suddenly encountered slow behaviour reported from the users.
• The problem is occurring reguraly and it's a web application, How would you think to debug and check the issue?
  • This is an open ended question and you need to assume all the missing information from your side. Feel free to write as much details as you can.

Expected Output

• You should deliver a Markdown file that contains the steps and details for debugging the problem

Challenge #2

Finally we are up to our last challenge!. A set of shell scripts on HackerRank that you need to solve.

Steps

• Visit the following link and solve this shell challenge

Expected Output

• The output is expected to be one or more screenshot that present the following.
• Successfull submission of the problem on HackerRank
• The solution you submitted

Challenge #3 (Bonus Challenge)

Steps

• Visit the following link and solve this

Expected Output

• The output is expected to be one or more screenshot that present the following.
• Successfull submission of the problem on HackerRank
• The solution you submitted

Compress all files and folders from the three challenges with the following formula YourName-Linux-challenge-date.zip

How Do We Evaluate

We love perfection and we are a team with very challenging tasks all the way. That's the spirit we want and we are looking for. You are not gonna do a job for fixed hours, You are gonna do something exciting for a while everyday.

That's the Spirit!

• Simplicty, write simple, clean code, Complexity is Human Programmer's Enemy
• Correctness, always focus on what output we asked for in the task
• Security, no one loves to be vulnerable, so we are. That's why you need to check the best practices to apply any security measurements
• Testing, we care about testing and your solutions should be well tested and wokring before submission. Otherwise, Mention all the details that let to failure
• Documentation, we love documentation, We need to establish our infrastructure documentation part and that's why we included the Git blog post part