README.md

devops_cheatsheet

The name of this repository is devops_cheatsheet.

It has the following tree structure:

.
├── .gitignore   <-- make git ignore certain files
├── images       <-- contains images used in the cheatsheet 
├── parts        <-- contains the different parts and chapters of the cheatsheet in markdown
├── README.md    <-- file you are reading    
└── temp.txt     <-- empty text file used in the examples

Every example assumes a clean initial repository in both local and remote repositories, i.e.

• no staged files
• no commits
• empty temp.txt file

Parts

Part1 – Github

• Chapter1 – Overview
• Chapter2 – SSH keys
• Chapter3 – Git graph
• Chapter4 – Correct errors on local repository
• Chapter5 – git log, git reflog, git blame, git cherry-pick
• Chapter6 – git reset vs git revert
• Chapter7 – Clean commit history and branches with git rebase
• Chapter8 – Integrate other people's repositories into yours with git submodule and git subtree
• Chapter9 – Detect a bug with git bisect
• Chapter10 – Git workflow
• Chapter11 – Continuous integration (CI) vs Continuous Delivery vs Continuous Deployment
• Chapter12 – Multiple GitHub Accounts - SSH vs HTTPS
• Chapter13 - 13 Advanced (but useful) Git Techniques and Shortcuts

Reference

This part is heavily based on the following OpenClassrooms course:

• Utilisez Git et GitHub pour vos projets de développement

Part 2 – Docker / Docker Compose

• Chapter1 – Docker overview
• Chapter2 – Install Docker
• Chapter3 – Start your first container
• Chapter4 – Create your first Dockerfile and Docker image
• Chapter5 – Push and pull images on Docker Hub
• Chapter6 – Docker Compose
• Chapter7 – Start a Docker Compose stack
• Chapter8 – Start another Docker Compose stack
• Chapter9 – Inspect Docker Images and Docker Containers

Reference

This part is heavily based on the following OpenClassrooms course:

• Optimisez votre déploiement en créant des conteneurs avec Docker

Part 3 – Gitlab CI/CD

• Chapter1 – Introduction to DevOps
• Chapter2 – What is Continuous Integration (CI) and Continuous Delivery (CD)?
• Chapter3 – Configure a CI pipeline with Gitlab CI
• Chapter4 – Codify your infrastructure
• Chapter5 – Deploy Docker images in Play with Docker
• Chapter6 – Monitor your app on the staging environment with Prometheus
• Chapter7 – Get live updates of your app during development and in production

Reference

This part is heavily based on the following OpenClassrooms courses:

• Découvrez la méthodologie DevOps
• Mettez en place l'intégration et la livraison continues avec la démarche DevOps