PnkCore

Welcome to PnkCore, a curated collection of sample code, templates, and tutorials built around modern infrastructure and data engineering practices.

Here you’ll find real-world examples spanning Docker, Kubernetes, Infrastructure as Code, Python, and other containerized technologies.

Created for developers, DevOps engineers, and data professionals, this repository connects directly with the educational content from my YouTube channel, hands-on resources to help you master cloud infrastructure, automation, and data pipelines.

Whether you’re building your first containerized app or designing advanced on-prem and hybrid architectures, PnkCore is your go-to foundation for understanding and implementing the backbone of modern infrastructure.

Cloud Native Certifications

Kubestronaut

Certified Kubernetes Security Specialist (CKS)

Name	Link
CKS Exam Prep: Environment Setup	Resources, YouTube
CKS Exam Prep: Cluster Setup - Kube-bench (CIS Benchmarks)	Resources, YouTube
CKS Exam Prep: Microservice Vulnerabilities - Manage Kubernetes Secrets	Resources, YouTube
CKS Exam Prep: Microservice Vulnerabilities - Pod Security Standard (PSS)	Resources, YouTube
CKS Exam Prep: Supply Chain Security - Image Footprint	Resources, YouTube
CKS Exam Prep: Supply Chain Security - Image Vulnerability Scanning With Trivy	Resources, YouTube
CKS Exam Prep: Runtime Security - Falco: Writing & Applying a New Rule	Resources, YouTube
CKS Exam Prep: Runtime Security - Audit logging	Resources, YouTube

Golden Kubestronaut

Prometheus Certified Associate (PCA)

Name	Link
PCA Exam Prep: Setting Up Prometheus Locally	Resources, YouTube

Certified Argo Project Associate (CAPA)

Name	Link
CAPA Exam Prep: Argp CD - Setting Up Argo CD	Resources, YouTube
CAPA Exam Prep: Argo CD - Managing Applications with Argo CD	Resources, YouTube
CAPA Exam Prep: Argo Workflows - Setting up Argo Workflows	Resources, YouTube
CAPA Exam Prep: Argo Workflows - A Simple DAG workflow	Resources
CAPA Exam Prep: Argo Workflows - CI/CD Using Argo Workflows	Resources
CAPA Exam Prep: Argo Workflows - Reuse Artifacts in a Workflow	Resources
CAPA Exam Prep: Argo Workflows - How Conditionals Work in Argo Workflows	Resources
CAPA Exam Prep: Argo Workflows - How Recursion Works in Argo Workflows	Resources
CAPA Exam Prep: Argo Workflows - How to Work with Sidecars in Argo Workflows	Resources
CAPA Exam Prep: Argo Workflows - How to Use Suspend in Argo Workflows	Resources
CAPA Exam Prep: Argo Rollouts - Argo Rollouts - Installing Argo Rollouts	Resources, Youtube
CAPA Exam Prep: Argo Rollouts - Argo Rollouts - Argo Rollouts Blue-Green	Resources, YouTube
CAPA Exam Prep: Argo Events - Setting Up Event Triggers with Argo	Resources, YouTube

OpenTelemetry Certified Associate (OTCA)

Name	Link
OTCA Exam Prep: OpenTelemtry Test Environment Setup	Resources

Cilium Certified Associate (CCA)

Name	Link
CCA Exam Prep: Architecture - Kind Cilium Foundation	Resources
CCA Exam Prep: Architecture - eBPF Datapath and Kube-Proxy Replacement	Resources
CCA Exam Prep: Architecture - Identity and Network Policy Architecture	Resources
CCA Exam Prep: Architecture - Routing Architectures: Overlay vs Native	Resources
CCA Exam Prep: Architecture - Observability with Hubble	Resources
CCA Exam Prep: Architecture - Gateway API North-South Architecture	Resources
CCA Exam Prep: Architecture - GAMMA Service Mesh East-West Architecture	Resources
CCA Exam Prep: Architecture - Egress and L7 Proxy Architecture	Resources
CCA Exam Prep: Architecture - Cluster Mesh Architecture on Kind	Resources
CCA Exam Prep: Network Policy - Rule Basics	Resources
CCA Exam Prep: Network Policy - Policy Enforcement Modes	Resources
CCA Exam Prep: Network Policy - Layer 3 Endpoints Based	Resources
CCA Exam Prep: Network Policy - Layer 3 Services Based	Resources
CCA Exam Prep: Network Policy - Layer 3 Entities Based	Resources
CCA Exam Prep: Network Policy - Layer 3 IP CIDR Based	Resources
CCA Exam Prep: Network Policy - Layer 3 DNS Based	Resources
CCA Exam Prep: Network Policy - Layer 3 Node Based	Resources
CCA Exam Prep: Network Policy - Layer 4 Ingress/Egress Ports	Resources
CCA Exam Prep: Network Observability - Setup Hubble with kind	Resources
CCA Exam Prep: Network Observability - Observing Pod-to-Pod Traffic	Resources
CCA Exam Prep: Network Observability - DNS Visibility	Resources
CCA Exam Prep: Network Observability - Debugging DROPPED Flows	Resources
CCA Exam Prep: Network Observability - Network Policy Observability	Resources
CCA Exam Prep: Network Observability - Service and Load-Balancing Flows	Resources
CCA Exam Prep: Network Observability - HTTP L7 Visibility	Resources
CCA Exam Prep: Network Observability - Live Debugging With Follow	Resources
CCA Exam Prep: Network Observability - Filtering and Output Formats	Resources
CCA Exam Prep: Network Observability - Troubleshooting Hubble Itself	Resources
CCA Exam Prep: Installation and Configuration - Cilium Test Environment Setup	Resources
CCA Exam Prep: Installation and Configuration - Monitoring the Application with Hubble	Resources
CCA Exam Prep: Installation and Configuration - Cilium In IPAM Mode	Resources
CCA Exam Prep: Installation and Configuration - Cilium In Multi-Pool IPAM Mode	Resources
CCA Exam Prep: Installation and Configuration - IPv6 Or Dual-Stack Cluster	Resources
CCA Exam Prep: Cluster Mesh - Cluster Mesh Setup & Workloads	Resources
CCA Exam Prep: Cluster Mesh - Cross Cluster Service Discovery	Resources
CCA Exam Prep: Cluster Mesh - Cilium Global Services	Resources
CCA Exam Prep: Cluster Mesh - Multi-Cluster Network Policies	Resources
CCA Exam Prep: BGP and External Networking - External Networking And BGP Foundations	Resources
CCA Exam Prep: BGP and External Networking - Kind, Podman, FRR, And Cilium Setup	Resources
CCA Exam Prep: BGP and External Networking - BGP Peering With FRR	Resources
CCA Exam Prep: BGP and External Networking - LoadBalancer IP Pools And BGP Advertisements	Resources
CCA Exam Prep: BGP and External Networking - External Client Testing	Resources
CCA Exam Prep: BGP and External Networking - BGP Troubleshooting	Resources

Kubernetes

Infrastructure

Name	Description	Link
Setup your own local test environment	Guides you to setup Kubernetes as a playground.	YouTube, Medium, Resources

Istio

Name	Description	Link
Install Istio with istioctl on Kubernetes (Kind Setup + Namespace Injection Demo)	Guides you to setup Istio with Istioctl into a Kind Kubernetes playground.	YouTube, Resources

Perses

Name	Description	Link
Deploy Perses the GitOps Way with Helm & FluxCD - Full Setup Guide	...	Medium, Resources

Ceph

Observability

Name	Description	Link
Collecting SMART Disk Metrics from Ceph with OpenTelemetry	Video Tutorial Learn how to send metrics from your Ceph cluster with OTel to a observability endpoint.	YouTube, Resources