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Phase 2 – The Technical Challenge

FIRST AND MOST IMPORTANT GUIDLINE

Read the instructions, go step by step and perform the instructions as written, it is crutial for your success

for instance: if you submit your answers in master branch it will not pass the automated tests and will fail!!

lets start,

INTRO

Hello and welcome to OpsSchool home assignment.

In this assignment you will be asked to configure a virtual environment, and to troubleshoot some basic issues in that environment. Please read the following instructions before starting the implementation, you don't want to miss any important instruction.

GET YOUR ENVIRONMENT READY

You'll need a local machine (laptop/desktop) with the ability to run VMs.

  1. Install VirtualBox .
  2. Install Vagrant .
  3. Mirror this git repo using the instructions here. Then clone it locally. (**Please DO NOT fork this repo!!! **)
  4. cd to the vagrant directory in the repo - candidates-assignment/vagrant.
  5. Create a branch summer2020 and make all your changes in that branch
  6. Run vagrant up and make sure you can ssh into both machines from your repo directory using vagrant ssh server1 and vagrant ssh server2

Now your environment is set and you can start the exercises. there are two servers running:

name server1 server2
ip 192.168.100.10 192.168.100.11

Important note: the infrastructure should work out of the box. There's no hidden part of the exercise in which you need to debug vagrant/virtualbox.

READY FOR ACTION?

Great!

This exercise is simple, as an Operations Engineer you may run into production issues, in the first task you will jump start a Linux server, and will need to solve three issues that we encountered:

EXERCISE 1:

In server 1:

Please fix the issue and add the command that fixes the issue to exercise1-fix.sh

EXERCISE 2:

In server 1:

Please fix the issue and add the command that fixes the issue to exercise2-fix.sh

EXERCISE 3:

Open your browser:

Please fix the issue and add the command that fixes the issue to exercise3-fix.sh.

EXERCISE 4:

We would like to ssh between the servers using their names rather than their ips. Please add the option to ssh between the two servers using names (server1 and server2).

  • exercise4-fix_server1.sh

  • exercise4-fix_server2.sh

  • in order to test this, run vagrant ssh server1 and from there you should be able to run ssh server2 to the second server.

EXERCISE 5:

At times, one would like to ssh between servers without typing a password or the need to approve new servers. Please add the needed configuration in order to ssh password-less from server1 to sever2 and without host key checking. Script to update configuration should be put in the following files.

  • exercise5-fix_server1.sh
  • exercise5-fix_server2.sh

EXERCISE 6:

In this exercise you will write a script that performs a simple task. At times we may want to copy files between the servers. Please write a script that takes a variable number of arguments, with a minimum of 2 arguments. all arguments except the last are paths to files on the server running the script. The last argument is a path to a folder on the other server. The script will:

  1. Copy all the received files to the destination path on the other server.
  2. The last line of output will print the total number of bytes copied. Please print only the number, without additional text.

Notes:

  • The script can be run on either server1 or server2 and must know to copy the files to the other server.
  • The script might be run during provisioning or copied into the server at a later time and run localy, so it should be able to run successfully with both root and the default user.

Example: If the script will be copied into the home directory on server1, the command ~/exercise6-fix.sh vagrant/Vagrantfile /etc/crontab /tmp/ should copy the files Vagrantfile and crontab to /tmp/ on server2. The last line of output should be: 1771

Please add the script to exercise6-fix.sh.

Deliverables

A GitHub Pull-Request to YOUR DUPLICATED REPO, containing all the scripts mentioned above with the solutions to the exercises.

PLEASE make sure your Pull Request contains all the requirements above, and doesn't contain any code you didn't change.

The Pull-Request should contain a file with your name and email (contact-details.txt)

all fix scripts should be under vagrant/fixScripts

General Guidelines

Your code should be as simple as possible. Your code should be tested by running "vagrant destroy" and "vagrant up" and see all fixes and tasks are implemented.

please be aware that we automatically test this assignment, so if it does not work for you when you run the above, the automatic tests will not pass

After completion please fill up this form with all the relevant details