DevOps · Learning hub

GitHub Actions cheat sheet & developer notes

GitHub Actions cheat sheet and 2 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · GitHub Actions

Workflows & Syntax

Workflows & Syntax. Workflow Structure. # .github/workflows/ci.yml name: CI on: push: branches: [main, develop] pull_request: branches: [main] schedule: - cron: '0 2 * * *' # daily at 2am UTC workflow_dispatch: # manual …

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02 · GitHub Actions

CI/CD Pipelines & Deployment

CI/CD Pipelines & Deployment. Multi-Job Pipeline. name: CI/CD Pipeline on: push: branches: [main] pull_request: branches: [main] jobs: test: runs-on: ubuntu-latest services: postgres: image: postgres:16 env: POSTGRES_PAS…

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From the community

Notes from developers

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Kubernetesdevops

From Zero to Kubernetes Expert

This is my living study map. Not a course, not a tutorial series a structured path I'm actually following while working full-time. The rule: understand each layer before touching the next one. Each…

Apr 7, 2026

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Concepts to know for GitHub Actions

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Secrets Management: Store, Rotate, Never LeakWhere API keys and passwords really leak, why env vars deliver secrets but do not protect them, and how secret managers and short-lived credentials fix it.Intermediate·14 min Blue-Green and Canary DeploymentsBlue-green switches all traffic at once, canary shifts it in steps judged by metrics. How each rolls back, and why schema changes must expand, then contract.Intermediate·13 min Evaluating LLM Outputs: Evals, Graders and JudgesWhy assertEquals cannot test an LLM feature, how a golden dataset plus graders catches regressions, and where LLM-as-judge, statistics and CI gates fit.Intermediate·14 min

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