Articles tagged "tutorial"

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7 min readIntermediate

Argo CD GitOps Tutorial 2026: Deploy Kubernetes Apps from Git with Self-Healing

Argo CD tutorial 2026: install Argo CD on Kubernetes, deploy an app from Git, set up auto-sync self-healing, manage multiple environments, and compare Argo CD vs Flux. Step-by-step with kubectl and YAML.

11 min readBeginner

Bug Bounty Hunting for Beginners 2026: From Recon to Your First Valid Report

Bug bounty hunting tutorial for beginners 2026: choose a program, do recon with subfinder and httpx, find XSS and IDOR vulnerabilities, write a valid report. HackerOne and Bugcrowd step-by-step guide.

9 min readIntermediate

Context Engineering 2026: AGENTS.md, CLAUDE.md, and .cursorrules That Actually Work

Context engineering tutorial 2026: write AGENTS.md, CLAUDE.md, and .cursorrules files that improve AI coding agent success rate from 30% to 90%. Real examples for Claude Code, Cursor, and Gemini CLI.

8 min readAdvanced

Crossplane 2026: Manage AWS Infrastructure as Kubernetes YAML (Terraform Alternative)

Crossplane tutorial 2026: install Crossplane on Kubernetes, use the AWS provider to create S3 buckets and RDS databases as YAML manifests, build Composite Resource Definitions, and compare Crossplane vs Terraform.

8 min readAdvanced

eBPF and Cilium Tutorial 2026: Zero-Overhead Kubernetes Networking, Hubble, and Tetragon

eBPF and Cilium tutorial 2026: install Cilium as Kubernetes CNI, replace kube-proxy, visualize network flows with Hubble, enforce NetworkPolicy, and add runtime security with Tetragon. Step-by-step kubectl commands.

10 min readIntermediate

Grafana Loki Tutorial 2026: Centralize Linux and Docker Logs Without Elasticsearch

Grafana Loki tutorial 2026: deploy Loki with Docker Compose, ship Linux syslog and Docker container logs with Promtail, query with LogQL, and build Grafana dashboards. 10x cheaper than Elasticsearch.

9 min readIntermediate

K3s Tutorial 2026: Lightweight Kubernetes for Raspberry Pi, Edge, and Home Lab

K3s tutorial 2026: install K3s on Linux or Raspberry Pi, add worker nodes, deploy apps, configure Traefik ingress, set up persistent storage, and compare K3s vs K8s vs MicroK8s vs k0s. Under 100MB binary.

11 min readBeginner

Metasploit Framework Tutorial 2026: Ethical Penetration Testing for Beginners

Metasploit tutorial 2026: start msfconsole, search and use exploits, generate payloads with msfvenom, catch Meterpreter sessions, run post-exploitation modules. Legal practice on Metasploitable3 — step by step.

8 min readIntermediate

Next.js 15 Tutorial 2026: App Router, Server Components, Server Actions, and Prisma

Next.js 15 tutorial 2026: build a full-stack app with App Router, React Server Components, Server Actions for forms, NextAuth for authentication, and Prisma with PostgreSQL. Step-by-step with TypeScript.

11 min readIntermediate

OpenTelemetry Python Tutorial 2026: Distributed Tracing, Custom Spans, and Context Propagation

OpenTelemetry Python tutorial 2026: auto-instrument FastAPI with OTel SDK, create custom spans, propagate trace context across microservices, export to Jaeger or any OTLP backend. Production-ready tracing patterns.