17 docs tagged with "devops"

Advanced Splunk SPL — regex extraction (rex), JSON parsing (spath), windowing (eventstats vs streamstats), transaction vs stats, subsearch optimization, and production SRE observability queries.

An exhaustive, 1000-line deep dive into Ansible covering Architecture, Playbooks, Jinja2, custom module Python code, and execution strategies with full examples.

Deep dive into Blue-Green Deployment — zero-downtime releases, instant rollback, Kubernetes implementation, database migration compatibility (expand-contract), CI/CD pipeline integration, and comparison with canary and rolling updates.

A complete guide to Continuous Integration and Continuous Deployment (CI/CD) — covering core concepts, the automated pipeline lifecycle, GitHub Actions workflows, triggers, runner architecture, Docker build & security scanning, and production deployment patterns.

Comprehensive guide to zero-downtime deployment strategies — Rolling, Blue-Green, Canary, Shadow, Feature Flags, and A/B Testing — with Kubernetes configs, database migration patterns, observability, and rollback runbooks.

Comprehensive Docker and Kubernetes interview question bank covering containers, images, networking, storage, workloads, services, security, and troubleshooting scenarios.

A complete beginner-to-advanced guide to Docker and Kubernetes — from writing your first Dockerfile to running production-grade microservices on a managed Kubernetes cluster.

Deep dive into Kubernetes Dynamic Admission Controllers — Mutating and Validating Webhooks, AdmissionReview JSONPatch RFC 6902, failurePolicy deadlock prevention, cert-manager TLS, and Policy-as-Code (Kyverno, OPA Gatekeeper).

An exhaustive, 1000-line deep dive into Linux for DevOps, featuring advanced commands (awk, sed, find), network tracing, system tuning, and bash scripting.

Deep dive into Externalized Configuration — 12-Factor App principle III, Spring Cloud Config Server with Git backend, hot-reload via Spring Cloud Bus, Kubernetes ConfigMaps/Secrets, HashiCorp Vault, and configuration hierarchy.

Deep dive into Feature Toggles — 4 toggle types, trunk-based development, percentage rollout, A/B testing, LaunchDarkly vs DB-backed implementation, toggle debt, and testing strategies.

Comprehensive guide comparing Apache Kafka's legacy ZooKeeper architecture with the modern KRaft (Kafka Raft) metadata mode — covering internal mechanics, failure scenarios, Strimzi Kubernetes deployment, migration strategies, and production deep dives for senior engineers.

Comprehensive guide to eliminating transient 502 Bad Gateway and Connection Reset errors during rolling updates and HPA scale-in using Kubernetes Pod Termination Lifecycle, preStop hooks, and Spring Boot 3 graceful shutdown.

Deep dive into modern web delivery and platform reliability — Edge Anycast routing, surrogate-key cache invalidation, automated Canary gates, SSG to SSR/ISR migration, atomic versioned S3/CloudFront deployments, CI/CD build pipelines, zero-downtime data migrations, SLO error budget burn rates, and OpenTelemetry observability fundamentals.

Splunk core architecture (Search Head, Indexers, Forwarders) and SPL fundamentals — pipeline mechanics, fast filtering, bloom filters, boolean logic, and transforming commands.

An exhaustive, 1000-line deep dive into Terraform with extensive practical code examples, CLI commands, state manipulation, and advanced architectures.

A comprehensive guide comparing Virtual Machines, Docker, and Kubernetes — starting with ELI5 analogies for beginners and ending with kernel-level deep dives for seniors.