DevOps and CI/CD

DevOps

Continuous Integration (CI)

• Definition: A development practice where code changes are automatically built, tested, and verified
• Goals:
  • Reduce integration problems
  • Improve code quality
  • Reduce time-to-market
• Key practices:
  • Automate the build process
  • Run automated tests
  • Use continuous integration tools (e.g., Jenkins, Travis CI)
• Benefits:
  • Faster feedback loop
  • Improved collaboration
  • Reduced errors and bugs

Containerization

• Definition: A lightweight and portable way to deploy applications
• Key concepts:
  • Containers: Isolated, ephemeral, and portable environments
  • Images: Templates for creating containers
  • Volumes: Persistent storage for data
• Containerization tools:
  • Docker: Most popular containerization platform
  • Kubernetes: Container orchestration system
• Benefits:
  • Isolation and portability
  • Efficient use of resources
  • Simplified deployment and scaling

Git

• Definition: A version control system for tracking changes in code
• Key concepts:
  • Repositories (repos): Centralized storage for code
  • Commits: Snapshots of code changes
  • Branches: Isolated lines of development
• Git workflow:
  1. Create a local repository
  2. Make changes and commit them
  3. Push changes to a remote repository
• Git benefits:
  • Version control and tracking
  • Collaboration and branching
  • Flexibility and scalability

DevOps

Continuous Integration (CI)

• Code changes are automatically built, tested, and verified to reduce integration problems and improve code quality.
• Goals of CI include reducing time-to-market and improving collaboration.
• Automating the build process, running automated tests, and using continuous integration tools like Jenkins and Travis CI are key practices.
• CI provides a faster feedback loop, improves collaboration, and reduces errors and bugs.

Containerization

• Containerization is a lightweight and portable way to deploy applications, providing isolated, ephemeral, and portable environments.
• Key concepts include containers, images, and volumes, with Docker being the most popular containerization platform.
• Kubernetes is a container orchestration system, providing efficient use of resources, isolation, and portability.
• Benefits of containerization include simplified deployment and scaling.

Git

• Git is a version control system for tracking changes in code, with repositories (repos) serving as centralized storage for code.
• Key concepts include commits, which are snapshots of code changes, and branches, which are isolated lines of development.
• The Git workflow involves creating a local repository, making changes and committing them, and pushing changes to a remote repository.
• Git benefits include version control and tracking, collaboration and branching, and flexibility and scalability.