Introduction to GitHub Actions
summary
GitHub Actions provides hosted CI/CD with Linux Windows and macOS virtual machines, YAML workflows and reusable steps like actions/checkout v2. Examples show matrix builds that expand into nine parallel runs (3 Node versions × 3 OSes), real iOS builds on macOS runners (physical Macs), and automated security fixes where dependabot PRs land, trigger the test matrix and can be auto-merged if green. The demo uses marketplace actions, npm and .NET setups and shows tests catching a string concatenation bug.
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chapters (34)
- 0:00Introduction
- 4:30GitHub Apps
- 7:02GitHub Actions
- 11:30GitHub Actions Overview
- 11:50GitHub Actions Gateway
- 12:20Getting Started
- 14:30Configuration
- 16:45Work Flow
- 18:55Pocket Calculator
- 22:05Matrix
- 24:40Matrix OS
- 28:05Pull Request Validation
- 28:55NPM Test
- 30:05String Concatenation
- 30:50Unit Tests
- 32:15CI
- 32:50PushPull
- 34:05Matrixes
- 35:50Summary
- 38:05Dependencies
- 38:50Calculator
- 39:35LowDash
- 39:55Transient dependency
- 42:05Pull requests
- 42:50Merge pull requests
- 45:55Actions within workflows
- 47:45Program components
- 49:30syntax highlighting
- 50:45GitHub Actions Toolkit
- 51:50GitHub Actions Templates
- 52:20Untitled Goose Game
- 53:10Issue Comment Workflow
- 53:50Identify GitHub Actions
- 56:30April Fools Day








