DevOps Classroomnotes 19/Apr/2022

Terms to understand

• Repository: Repository is a storage location. Often table of contents is also stored along with metadata.
• Version Control System: Version control, also known as source control is the practice of tracking and managing changes to software code

Quick look at CI/CD

• Overview
  
• Requirements for code-collobaration
  

Version Control System

• These are the software tools that help software teams to manage changes to source code over time.
• Version Controls Systems (VCS) keeps track of modification the code in special kind of database, If a mistake is made, developers can turn back the clock, compare earlier changes and fix the code or move back to earlier version
• Types of Version Control System
  • Centralized Version Control System
  • Distributed Version Control System
• Centralized Version Control System
  • Overview:
    
  • Examples:
    • Subversion (SVN)
    • Perforce
    • IBM ClearCase
• Distributed Version Control System
  • Overview
    
  • Examples:
    • Git
    • Mercurial
    • Bazaar
• Git is the most popular Version Control System.
• Git was created by Linus Torvalds (Who create Linux Kernel)
  
• The primary objective behind Git was to implement & design a version control system that was distributed, reliable and fast.
• This version control system was created to manage Linux Code base.
• Torvalds had three criteria
  • distributed
  • effecient
  • safe from corruption
• There was no open source distributed version control systems in mid 2000’s , Hence he developed Git out of necessity