All Things Git

All Things Git

Git is a distributed version control system that has become the industry standard for managing code repositories. Whether you’re a solo developer or part of a large team, Git can help you manage your codebase and collaborate with others more effectively. It was created by Linus Torvalds in 2005 and has since become one of the most widely used version control systems in the world.

So, what is Git?

Have you ever worked on a big puzzle with your friends or family? And sometimes, one of you might want to change a piece that someone else put in, or you might want to try putting the puzzle together in a different way.

Git is like a magic tool that helps you work on a big puzzle like that, but with computer code instead of puzzle pieces. You and your friends can each take turns adding pieces to the puzzle, and Git will keep track of all the changes you make. That way, if someone makes a mistake or changes something that doesn't work, you can easily go back to an earlier version of the puzzle that did work.

Git also lets you try out different ways of putting the puzzle together without messing up the main puzzle that everyone else is working on.

So, Git is like a magic puzzle tool that helps you and your friends work together on a big puzzle made of computer code, and keeps everything organized so you can fix mistakes and try new things without causing chaos.

Git basic concepts

So what are the key commands and concepts behind Git. We have picked out 4 key commands which you might come across daily.                                                                                                                   

·       Repository: A repository is a collection of files and directories that you want to track changes for. A repository can be local (on your own computer) or remote (hosted on a server).

·       Pull request: used to fetch and download content from a remote repository and immediately update the local repository to match that content.

·       Commit: A commit is a snapshot of your repository at a particular point in time. When you make changes to your repository, you create a new commit to save those changes.

·       Push: Pushing is the process of uploading your local changes to a remote repository. Once you've made changes and committed them locally, you can push those changes up to a server so that others can see and work with them.

As mentioned, there are a lot more git commands available, we just wanted to highlight the key ones that you might come across on a daily basis. 

Git Benefits

What are the benefits that Git provides its users:

1. Distributed development: Git allows developers to work on their own local copy of the codebase, which can then be easily merged with the main repository. This enables distributed development, where developers can work independently without disrupting each other's work.
2. Easy collaboration: Git enables easy collaboration between developers by providing tools for sharing code changes and reviewing each other's work. Git also allows developers to work on different branches of the codebase, which can then be easily merged back into the main branch.
3. Better code management: Git provides a complete history of all changes to the codebase, including who made the changes and when. This makes it easy to track down issues and revert changes if necessary. Git also makes it easy to branch and merge code, allowing for more efficient code management.
4. Code reuse: Git makes it easy to reuse code from other projects or repositories, either by including it as a submodule or by forking the repository.
5. Open source community: Git is an open source tool with a large and active community of developers. This community provides resources, support, and tools for working with Git, making it easier to get started and learn new features.
6. Continuous integration and deployment: Git integrates well with continuous integration and deployment tools, allowing for automated testing, building, and deployment of code changes.

GitOps

GitOps is an approach to software delivery that uses Git as the source of truth for defining and managing the entire software stack, including infrastructure, applications, and configurations. 

Fleet is a continuous delivery solution developed by the Rancher team. Fleet comes built-in with Rancher. 

Fleet brings GitOps easily to a Kubernetes clusters, where clusters deployments are managed by a central Git repository, which contains the desired state for each cluster. Changes to the Git repository trigger automated workflows that update the state of the clusters to match the desired state specified in the repository.

Fleet GitOps makes it easy to manage a large number of Kubernetes clusters in a consistent and scalable manner, allowing you to apply changes to your entire fleet of clusters at once. 

More information on fleet could be found at- https://fleet.rancher.io

Summary 

Git is a powerful and flexible tool that can be used for many different use cases beyond software development. Its ability to track changes to files over time, collaborate on changes, and manage different versions of a codebase make it a valuable tool for many different types of projects.