Guides & Tutorials · OpsCart
Structured Learning
Built for Production
In-depth guides and hands-on tutorials written from real enterprise Kubernetes and container security experience — not textbook theory. Every guide connects concepts to production realities.
2Live Guides
70+Hands-on Labs
16Deep-dive Topics
Fortune 500Production Context
Live Guides
Kubernetes Guide
The Complete
Kubernetes Learning Hub
Kubernetes Learning Hub
From control plane internals to production debugging — 7 deep-dive guides written from 8+ years managing Fortune 500 pharmaceutical clusters.
Architecture
Pods
Scheduling
Networking
Services
Storage
Debugging
7
In-depth guides
70+
Hands-on labs
Also live
Docker Security Guide
The Complete
Docker Security Guide
Docker Security Guide
From container runtime escapes to secrets management — everything you need to understand, audit, and harden Docker containers at enterprise scale.
CIS Compliance
Capabilities
Supply Chain
Network Isolation
Secrets
Runtime Security
6
Core topics
10
Hands-on labs
Kubernetes Guide Topics
Architecture
Kubernetes Architecture Explained
Control plane, worker nodes, API server, etcd, scheduler, and controller manager — how they connect and why it matters in production.
Networking
Kubernetes Networking Explained
Pod networking, service discovery, CoreDNS, NetworkPolicies, Ingress — everything traffic-related from first principles to production patterns.
Scheduling
Kubernetes Scheduler Explained
Node affinity, taints, tolerations, resource-based scheduling, priority classes — how the scheduler assigns pods and how to control it.
Storage
Kubernetes Storage Explained
Volumes, PersistentVolumes, PVCs, StorageClasses, CSI drivers, and snapshots — persistent storage for stateful workloads in production.
Services
Kubernetes Services Explained
ClusterIP, NodePort, LoadBalancer, Headless, and Ingress — stable networking for dynamically changing pods across environments.
Debugging
Production Debugging Handbook
CrashLoopBackOff, DNS failures, scheduling issues, storage errors, node failures — real production failure patterns with step-by-step diagnosis.
Docker Security Guide Topics
CIS Compliance
CIS Compliance & Auditing
Docker Bench Security, CIS Docker Benchmark automation, and what each finding means at enterprise production scale.
Capabilities
Linux Capabilities & Privilege
Why dropping capabilities matters, what CAP_SYS_ADMIN enables, running as non-root, and implementing least privilege at scale.
Supply Chain
Image Supply Chain Security
Image signing with Cosign, SBOM generation with Syft, vulnerability scanning with Grype and Trivy — from build to deployment.
Network Isolation
Network Isolation & Segmentation
Custom networks, internal networks, TLS encryption, and multi-tier PCI DSS data tier isolation for production container environments.
Secrets
Secrets Management
Why environment variables leak, how Docker Swarm secrets work, HashiCorp Vault integration, BuildKit secret mounts, and git leak prevention.
Runtime Security
Container Runtime Security
Container escape techniques: docker.sock abuse, privileged containers, CAP_SYS_ADMIN exploitation — how attackers break out and how to detect it.
Hands-On Labs
CKA Preparation 2026
70 Production-Grade Labs
Every CKA exam domain covered with automated validation, exam tips, and war-room notes from Fortune 500 clusters. GitHub-backed.
5 Domains
~55 hours
GitHub-backed
Kubernetes Exercises
Kubernetes Practical Exercises
Focused exercises for engineers who want to sharpen specific skills without a full exam prep course. Pick a topic, practice it hands-on.
Pods
Networking
Storage
Debugging
Docker Security Labs
Docker Container Security Labs
10 production-grade labs covering capabilities, seccomp, AppArmor, runtime escape, supply chain security, and secrets management.
10 Labs
~60 hours
GitHub-backed
Coming Soon
Coming Soon
AI & DevOps
AI-Powered DevOps Guide
Using AI to accelerate Kubernetes operations, pipeline debugging, incident response, and infrastructure automation at enterprise scale.