DevOps Foundations and CI/CD Pipelines

DevOps culture, Git workflow, GitHub Actions pipelines, and Jenkins from first run to credentials.

8 lessons · about 73 minutes of reading

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1. 1

   DevOps Fundamentals: Culture, Lifecycle, and CI/CD Explained

   Understand what DevOps really means, the delivery lifecycle, the difference between CI, continuous delivery, and continuous deployment, and how to measure success.

   8 min read

2. 2

   Git Branching Strategies and the Pull Request Workflow

   Compare trunk-based development, GitHub flow, and Git Flow, and learn a clean feature-branch and pull request routine.

   8 min read

3. 3

   GitHub Actions: Your First CI Workflow

   Create a workflow that builds and tests your project on every push and pull request, and learn to read the results.

   9 min read

4. 4

   GitHub Actions: Matrix Builds, Caching, Artifacts, and Secrets

   Test across multiple versions at once, speed up runs with caching, keep build outputs, and use secrets and permissions safely.

   10 min read

5. 5

   GitHub Actions: Build and Push a Docker Image to GitHub Container Registry

   Automate image builds on every push, tag them sensibly, and publish to ghcr.io using the built-in GITHUB_TOKEN.

   9 min read

6. 6

   GitHub Actions: Environments, Approvals, and Reusable Workflows

   Build a staged deployment pipeline with environment protection and required reviewers, and remove duplication with reusable workflows.

   10 min read

7. 7

   Jenkins: Install with Docker and Create Your First Pipeline

   Run Jenkins locally in Docker, finish the setup wizard, and create and run a pipeline job.

   9 min read

8. 8

   Jenkinsfile in Depth: Stages, Credentials, Parameters, and Post Actions

   Write a realistic declarative pipeline kept in Git, with conditions, parallel stages, secure credentials, and cleanup.

   10 min read