GitHub Actions
The CI/CD platform that lives right inside GitHub. Free for public repos, ridiculously powerful for everyone else.
What is GitHub Actions, really?
GitHub Actions is the fastest way to add CI/CD to any project hosted on GitHub. Drop a .github/workflows/ci.yml file in your repo, and on every push you can build, test, scan, deploy, send Slack messages — anything.
In 2026, GitHub Actions has overtaken Jenkins as the #1 CI/CD tool for new projects. The Marketplace has 20,000+ pre-built actions (deploy to AWS, scan with Trivy, post to Slack, run k6 load tests — all one line of YAML).
At Cloudadhar we teach GitHub Actions production-style: reusable workflows, composite actions, OIDC for keyless cloud auth, matrix builds, self-hosted runners on EKS, and proper secret management with environments + required reviewers.
What makes it special
- Free 2,000 minutes/month for private repos (unlimited for public)
- 20,000+ actions in the Marketplace — deploy anywhere in one line
- Matrix builds run your test suite across N OS × N languages in parallel
- OIDC integration with AWS / Azure / GCP — no long-lived secrets
- Reusable workflows — share CI logic across 50 repos with one file
When you should reach for it
- Your code already lives on GitHub (Actions is the path of least resistance)
- You want zero infrastructure to maintain (vs. self-hosted Jenkins)
- You need quick smoke tests on every PR
- You want to deploy to AWS / Azure / K8s on push to main
- You need scheduled jobs (cron) without standing up servers
A real GitHub Actions story from production
“I migrated a team off a 12-year-old Jenkins server with 400 jobs configured through the UI (no Jenkinsfile, no version control). We moved to GitHub Actions with reusable workflows: one repo holds 'cloudadhar-actions/build-go', 'cloudadhar-actions/deploy-eks', etc. Each app repo's workflow is now 20 lines instead of 400. The old Jenkins server went offline 3 months later. Nobody noticed except the security team, who got their CIS audit hours back.”
— Gangadhar, 12+ yrs in production cloud
How to actually learn GitHub Actions
- 1Write a hello-world workflow that runs on every push (1 hour)
- 2Add a real test job for your language (Node/Python/Go/Java)
- 3Cache dependencies with actions/cache to speed up builds
- 4Set up OIDC with AWS — deploy without long-lived secrets
- 5Build a reusable workflow + call it from 3 repos
- 6Use environments + required reviewers for prod deploys
Want to learn GitHub Actions production-style?
Live batches, 1:1 mentorship, hands-on labs in a real cloud account. No slideware. No fluff. Just the playbooks I use as a DevSecOps Lead.
