DevOps Intermediate

What is GitHub Actions?

A CI/CD platform integrated into GitHub that automates build, test, and deployment workflows using YAML configuration.

GitHub Actions triggers workflows on events (push, pull request, schedule, manual). Workflows are defined in .github/workflows/*.yml files with jobs, steps, and actions. The marketplace offers thousands of reusable actions.

Features include matrix builds (test across multiple OS/versions), secrets management, artifact storage, environment deployments, and self-hosted runners. Free tier includes generous minutes for public repositories.

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Related Terms

A declarative GitOps continuous delivery tool for Kubernetes that automatically syncs cluster state with Git repositories.

An open-source service mesh that provides traffic management, security, and observability for microservices on Kubernetes.

A communication mechanism that enables asynchronous message passing between services, decoupling producers from consumers.

Immutable Deployment

A deployment strategy where new versions replace existing instances entirely rather than updating them in place.

Log Aggregation

The process of collecting, centralizing, and indexing log data from multiple sources for unified search and analysis.

Incident Management

The process of detecting, responding to, and resolving service disruptions to minimize impact and restore normal operations.

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