DevOps

Terraform is an IaC tool by HashiCorp using HCL for declarative provisioning across clouds/providers, with state management and modules. Supports plan/apply workflow.

GitLab is an open-core DevOps platform for version control, CI/CD, issue tracking, and security scanning in a unified interface. It supports self-hosted or SaaS for full lifecycle management.

Sentry is an error tracking and performance monitoring platform that captures exceptions, breadcrumbs, and traces for quick debugging in apps. It supports source maps and alerts.

Kubernetes (K8s) orchestrates containerized apps across clusters, handling scaling, deployment, service discovery with YAML manifests and kubectl. CNCF project.

GitHub Actions is a CI/CD platform integrated with GitHub for automating workflows on push/PR via YAML, supporting matrices and secrets. Marketplace for actions.

Nginx is a high-perf web server/reverse proxy/load balancer serving static content, proxying, and caching with event-driven architecture. Config via nginx.conf.

An Observability Stack combines logging, metrics, and tracing to provide insights into application health, performance, and behavior in production. Tools like Prometheus, Grafana, and Jaeger form a typical stack for full visibility.

Docker containerizes apps with images for portable, consistent envs across dev/prod using Dockerfile and docker-compose for multi-service. Orchestrate with Swarm/K8s.