devops-expert

CI/CD pipelines with GitHub Actions automate build, test, and deployment workflows. Define jobs in YAML workflow files to trigger on events like pushes or pull requests, execute tests, and deploy to your target environment. This reduces manual steps and accelerates reliable releases.

Infrastructure as code with Terraform lets you define cloud resources declaratively in configuration files, version them in git, and apply changes consistently across environments. Modularize your Terraform code to separate concerns, enforce environment parity, and prevent drift.

Blue-green deployments run two identical production environments and switch traffic between them for zero-downtime updates. Canary deployments gradually roll out changes to a subset of users to validate stability before full release. Both strategies reduce rollback time and deployment risk.

Yes. Automated environment promotion uses CI/CD pipelines to build once and deploy the same artifact across environments, applying environment-specific configurations at each stage. This enforces consistency, reduces manual errors, and accelerates release velocity.

Production deployments require monitoring to detect failures, alerting to notify teams, and rollback procedures to recover quickly. Pair deployment strategies with observability to track application health, identify performance regressions, and enable confident releases.

GitLab CI and GitHub Actions both automate CI/CD pipelines but differ in configuration syntax and integration scope. GitLab CI uses .gitlab-ci.yml; GitHub Actions uses workflow YAML. Both support similar capabilities: build, test, deploy, and notification steps across environments.