DevOps & Deployment

CI/CD pipelines automate building, testing, and deploying applications through multi-stage workflows with quality gates. They replace manual release processes with automated steps including linting, unit tests, security scans, and containerized deployments to Kubernetes or cloud environments, reducing errors and accelerating delivery.

Containerization best practices enforce multi-stage Docker builds, non-root containers, read-only filesystems, resource limits, and health checks. Kubernetes deployments apply rolling updates, secret management, and declarative manifests to ensure secure, scalable, and reliable container orchestration across cloud environments.

Infrastructure as code templates define cloud resources and Kubernetes deployments declaratively using Terraform for cloud provisioning and Helm for Kubernetes package management. Combined with GitOps workflows and ArgoCD, IaC enables version-controlled, auditable, and reproducible infrastructure deployments.

GitOps treats Git repositories as the source of truth for infrastructure and application state, with ArgoCD automatically syncing Kubernetes clusters to match declared manifests. This approach centralizes configuration management, enables auditability, rollback capability, and integrates seamlessly with CI/CD pipelines.

Security scanning in CI/CD pipelines identifies vulnerabilities before deployment. Container hardening includes running as non-root users, enforcing read-only filesystems, setting resource limits, and managing secrets separately. These practices prevent privilege escalation and limit blast radius in compromised containers.

GitHub Actions CI/CD pipelines build and test code, generate container images, and trigger Kubernetes deployments through ArgoCD or direct API calls. This integration automates the entire delivery chain from code commit to production rollout with automated testing and rolling updates.