Added some more python exercises

Signed-off-by: Arnaud Morin <arnaud.morin@gmail.com>

README.md

@@ -1 +1,171 @@
-# merge-vs-rebase
+# Intro
+
+We created this set of exercises to give you the opportunity to express yourself technically. Do as much as you can in
+the time you have. Feel free to ask us questions, if any. No worries if you can't make it all by lack of time or
+understanding of what we're asking. We'll defrief it with you during our next call.
+
+**Have fun!**
+
+## Fork
+
+Fork this repo to your own github repo
+
+# Ex. 1 - python
+
+This exercise will be split into multiple smaller ones. For each one
+you can create files named `a.py`, `b.py` and `c.py`. You maybe resuse the same
+environment for all sub-exercises
+
+Guidelines:
+- Use python version python3.7+.
+- Unless specified otherwise you can only use builtin modules.
+
+### python - A
+
+Write a script that prints out whatever text input is passed as argument
+
+Example:
+
+```
+$ python a.py ping ping ping
+ping ping ping
+```
+
+### python - B
+
+Write a script take takes one argument (-t/--target) which can only
+accept the following values `titi`, `toto`, `tata`. When called with a valid
+target, the script should print out the target text to stdout (`titi`, `toto` or `tata`).
+When an invalid target is provided an error message should be printed to stderr
+
+Example:
+
+```
+$ python b.py --target titi
+titi
+
+$ python b.py -t tutu
+usage: b.py [-h] [-t {titi,toto,tata}]
+b.py: error: argument -t/--target: invalid choice: 'tutu' (choose from 'titi', 'toto', 'tata')
+```
+
+### python - C
+
+Write a script that creates ascii art equivalent of text passed as argument.
+For this exercise you may use a 3rd party module.
+
+Example:
+
+```bash
+$ python c.py 'Hello buddies'
+ _   _        _  _          _                 _      _  _
+| | | |  ___ | || |  ___   | |__   _   _   __| |  __| |(_)  ___  ___
+| |_| | / _ \| || | / _ \  | '_ \ | | | | / _` | / _` || | / _ \/ __|
+|  _  ||  __/| || || (_) | | |_) || |_| || (_| || (_| || ||  __/\__ \
+|_| |_| \___||_||_| \___/  |_.__/  \__,_| \__,_| \__,_||_| \___||___/
+
+```
+
+# Ex. 2 - docker
+
+In ex2 folder, you will find a `app` binary.
+
+Can you build very lighweight docker image that contains ONLY `app` binary, and that execute `app` by default?
+
+Push your Dockerfile in the ex2 folder.
+
+# Ex. 3 - terraform
+
+In ex3 folder, you will find an incomplete `openrc` file.
+
+You will need to amend the file to configure the correct `OS_USERNAME` and `OS_PASSWORD` with the one that we gave to you.
+
+Then, using `terraform`, can you write a plan to boot a `d2-4` on `GRA7` region with a floating IP.
+
+Bonus, on that instance, make sure a web server (`nginx`) is running.
+
+Push your `main.tf` file in ex3 folder.
+
+# Ex. 4 - git
+
+In this repo, there are two branches:
+
+- stein
+- queens
+
+Stein contains the following commits:
+
+- 1ff2641 (stein) G
+- cf24853 F
+- 3fcdfa0 E
+- cb8c71a D
+- 849ef26 C
+- 372c155 B
+- edc8ed7 A
+
+Queens contains the following commits:
+
+- 2624c16 (queens) F
+- 5e3521b B
+- edc8ed7 A
+
+So the common ancestor is A (same commit ID).
+
+B has been cherry-picked from stein to queens, without conflicts.
+
+F has also been cherry-picked but with conflicts (solved, of course).
+
+## Exercice
+
+You will need to create two branches:
+
+- merged
+- rebased
+
+### Merged
+
+Create the merged branch first:
+
+```bash
+git checkout -b merged origin/queens
+```
+
+Then merge the stein branch into your branch
+
+```bash
+git merge origin/stein
+```
+
+You will have a conflict to solved.
+
+Solve it, then push your `merged` branch to your repo.
+
+### Rebased
+
+Now create the rebased branch:
+
+```bash
+git checkout -b rebased origin/queens
+```
+
+Now rebase it on top of stein:
+
+```bash
+git rebase -i origin/stein
+```
+
+You will have a conflict to solved.
+
+Solve it, then push your `rebased` branch to your repo.
+
+## Check diff
+
+Now check the diff between your two branches `merged` and `rebased`.
+
+```bash
+git diff merged..rebased
+```
+
+Can you explain why you have a diff?
+
+Write down the explanation in ex4 folder (like in a `README.md` file)

ex3/openrc

@@ -0,0 +1,9 @@
+export OS_AUTH_URL=https://auth.cloud.ovh.net/v3
+export OS_IDENTITY_API_VERSION=3
+export OS_USER_DOMAIN_NAME="Default"
+export OS_PROJECT_DOMAIN_NAME="Default"
+export OS_TENANT_ID=fc00ee5431d4497681f2039f4e649dca
+export OS_TENANT_NAME="3245829148481055"
+export OS_USERNAME="REPLACE_ME"
+export OS_PASSWORD="REPLACE_ME"
+export OS_REGION_NAME="GRA7"