DevOps Foundations: Your First Project

Curious about how to put DevOps principles into practice? This course can help. Learn how to apply a DevOps philosophy to a sample app you might find in the enterprise.

Introduction

• Your first project, DevOps-ified!
• What you should know
• Configuring AWS

1. The Project/The Mission

• So what is this DevOps thing anyway?
• Your application, pre-DevOps
• Your application, post-DevOps

2. Testing Locally with Docker

• Bring production to your laptop with Docker
• Installing Docker
• Writing your first Dockerfile
• Writing your first Docker Compose manifest

3. Getting Started with Git

• Version control: The secret weapon of DevOps
• Installing Git
• Initializing your first Git repository
• Getting familiar with the Git workflow

4. Collaborative Version Control

• Beyond local repositories
• Introducing GitLab
• Creating the GitLab Docker Compose service
• Starting the GitLab Compose service
• Creating our first GitLab project
• Connecting Git to GitLab

5. Testing Your App with RSpec, Capybara, and Selenium

• Test often, ship often
• Setting up your test
• Viewing our test harness in Docker Compose
• Updating the Dockerfile
• Running the test
• Finding criteria for a unit test
• Writing the unit test
• Setting up Selenium
• Running your test with Selenium

6. Infrastructure as Code with OpenTofu

• Deploy with confidence with infrastructure as code
• Finding the version of OpenTofu to use
• Adding OpenTofu to Docker Compose
• AWS deployment explained
• Writing your integration test
• Writing OpenTofu code
• Reviewing the OpenTofu plan
• Applying the OpenTofu plan
• Running your integration test
• Destroying the website from AWS S3

7. CI/CD as Code

• Shipping fast with CI/CD
• Introducing GitLab CI
• Writing our first Gitlab CI workflow
• Configuring sensitive variables
• Creating our first Gitlab CI runner
• Putting it all together
• Challenge: Change the website title
• Solution: Change the website title

8. Conclusion

• Next steps