Kubernetes

GitLab Setup: GitLab & GitLab Registry Kubernetes Deployment, GitLab Runner Kubernetes Deployment, GitLab Shell Configuration, CoreDNS Configuration, Enable GitLab Pages; Example CI Pipeline with K8s based GitLab Runner

Kubernetes Container Storage Interface (CSI): Samba - Deploy SMB CSI via Helm, Create example PVC and Pod

Kubernetes Container Storage Interface (CSI): Longhorn Distributed Block Storage System - Deploy Longhorn via Helm Chart, Define Custom Storage Mountpoints; StorageClass & PVC Example

Kubernetes Container Storage Interface (CSI): Ceph CSI Driver Example, Dynamically provision RBD Images in a Ceph Storage Pool

Kubernetes Container Storage Interface (CSI): NFS CSI Driver Example, Dynamically create PersistentVolumes using a CSI StorageClass and PVC

Kubernetes Commands: Kubectl Autocomplete, Cluster Nodes, Namespaces, LimitRange Resource Limits, Pods, Deployments, Replication Controllers, Services, HPA, Secrets, Cronjobs, Helm, Logs, K9s TUI

Kubernetes Troubleshooting: Cluster, Nodes, Pods & Kubelet

Kubernetes Etcd Snapshot: Etcd Snapshot and Restore with Etcdctl, Verify Etcd Member Health; Etcdctl Commands

Kubernetes Kubeconfig: Create example Kubeconfig with new (RBAC) Service Account and ClusterRole / ClusterRole Binding

Kubernetes Role Based Access Control (RBAC): RBAC Overview, Create Service Account, Example Role and RoleBinding

Kubernetes Jobs: Jobs Overview, Basic Non-parallel & Parallel Job Examples; CronJob & RBAC Example that Restarts a Deployment

Kubernetes Horizontal Pod Autoscaling: Install Kubernetes Metrics Server, Example Deployment with Horizontal Pod Autoscaler (HPA)

Kubernetes Networking - DNS: CoreDNS custom Hosts entry (K3s & K8s Version), Deployment with custom Hosts entry; Backup and Restore the CoreDNS ConfigMap; DNS Troubleshooting

Kubernetes Networking - Liveness, Readiness & Startup Probe Examples: Liveness Probe (TCP), Readiness Probes (TCP / Single Pod and Multi Pod Dependency), Startup Probe (Command, TCP & HTTP)

Kubernetes Networking - Network Policies: Ingress and Egress Policy Examples

Kubernetes Configuration Management - Kustomize: Kustomize Example

Kubernetes Configuration Management - Helm Charts: Create a Custom Helm Chart

Kubernetes Labels, Annotations, Affinity / Anti-Affinity, Taints & Tolerations: Node Labeling, Pod Labeling & NodeSelector; Pod Annotations; Node Affinity, Pod Anti-Affinity; Node Taints and Pod Tolerations

Kubernetes Sets - StatefulSets: Difference between StatefulSet & ReplcaSet; StatefulSet Example with VolumeClaimTemplate and Stateless Service

Kubernetes Sets - ReplicaSets & DaemonSets: Overview, Example ReplicaSet, Example DaemonSet with and without NodeSelector / Node Labeling

Kubernetes ConfigMaps: Mount ConfigMap to Pod as Volume, Mount ConfigMap as Environment Variable

Kubernetes Secrets: Opaque Secret Configuration, Pod Examples with Environment Variable Secrets and Volume Secrets; SSH Authentication Secret with Pod Example

Kubernetes Volumes: Nginx Pod and Deployment Examples with NFS Volume, Pod and Deployment Examples with EmptyDir Volume, Deployment Example with PersistentVolume, External Storage Provider with NFS

Kubernetes Security: Pod Security Admission (PSA) - Overview, Enforce Pod Security Standard at a Namespace; Example Nginx Pod SecurityContext for Restricted PSS

Kubernetes Security: Immutable Deployment - Deploy Container with ReadOnly-Filesystem and Writable-Volume

Kubernetes Monitoring & Logs: Monitor Applications with top, Monitor Events Pod specific and Cluster wide, Container STDOUT and STDERR Logs

Kubernetes Resource Management: Deploy Kubernetes Metrics Server, Vish/Stress Container Example, Define Resource Requests and Limits, Verify Resource Usage with kubectl top, Define a LimitRange for a Namespace

Kubernetes Services: Example ClusterIP, NodePort & LoadBalancer Services with Expose-Command and YAML Configuration; Service for External Endpoint

Kubernetes Kubernetes Deployments & Replication Controllers (Soon Depricated): Example Deployment with Create-Command and YAML Configuration, Scale the Deployment; Example Replication Controller

Kubernetes Pods: Init & Sidecar Container Overview, Init Container Examples

Kubernetes Pods: Create Pods with Run-Command and YAML Configuration; Single & Multi Container Pods, Port-Forwarding, Find Container on Worker Node

Kubernetes Non-Disruptive & Disruptive Configuration Updates: Kubectl Apply, Edit, Patch & Replace; Update Rollouts and Rollbacks with Set Image Command

Kubernetes Configuration Manifests: Create Manifests from RAW Output and Dry-Run Command

Enterprise K8s - OpenShift: Multi Node Cluster Deployment based on vSphere with CLI-based Local Agent, Static IPv4 Network Configuration, HAproxy Load Balancer

Enterprise K8s - OpenShift: Single Node Cluster Deployment based on vSphere with CLI-based Local Agent, Static IPv4 Network Configuration; Deploy Image Registry, Example Deployment from Cluster Web Console

Enterprise K8s - OpenShift: Multi Node Cluster Deployment based on vSphere with Interactive Installer, Static IPv4 Network Configuration, Example Deployment with Ingress

Enterprise K8s - OpenShift: Single Node Cluster Deployment based on vSphere with Interactive Installer, DHCP Network Configuration

K8s Kubeadm - Upgrade Kubernetes Version with Kubeadm

K8s Kubeadm - High Availability Kubernetes Cluster Deployment with HAproxy and Keepalived, External etcd Cluster

K8s Kubeadm - High Availability Kubernetes Cluster Deployment with HAproxy and Keepalived, Pod based stacked etcd Cluster; Cilium Network Add-On, MetalLB & Nginx Ingress Controller, Test-Deployment with TLS Encryption

K8s Kubeadm - Basic Kubernetes Cluster Deployment with one Controller and two Worker Nodes, Containerd and Kubeadmin Cgroup Driver Configuration, Cilium Network Add-On, MetalLB & Nginx Ingress Controller, Test-Deployment with TLS Encryption

Automated K8s Cluster - Cluster API vSphere (CAPV): Deploy Kubernetes Cluster on vSphere, with Cluster API from a KIND Management Cluster

Automated K8s Cluster - Kubespray: Kubernetes Cluster Deployment, MetalLB Configuration, Add & Remove Nodes from the Cluster, Example Deployment with LoadBalancer and NodePort Services

Lightweight Kubernetes Cluster - RKE2 (Rancher Kubernetes Engine): Deploy a Bare-Metal Kubernetes Cluster based on Ubuntu 24.04 Servers, Add Controller & Worker Nodes, Deploy & Configure MetalLB LoadBalancer, Example Deployment with LoadBalancer Service

Lightweight Kubernetes Cluster - K0s: Deploy a K0s Cluster with K0sctl, Deploy and Configure MetalLB, Deploy Nginx Ingress Controller; Example Deployment with TLS Encryption

Lightweight Kubernetes Cluster - K3s: Single and Multi Node Kubernetes Cluster based on Debian 12 Servers, Traefik & Nginx Ingress Controller, Helm Package Manager, Node Labels, Taint Master Node, Deployment Scaling, TLS Encryption with Certbot

Managed Kubernetes Services - Google Kubernetes Engine (GKE): Install gcloud, Enable APIs, Deploy Regional & Zonal Cluster via gcloud CLI; Exaple Deployment with TLS Encryption via GKE Ingress and Google-managed Certificate

Managed Kubernetes Services - Azure Kubernetes Service (AKS): Deploy AKS Cluster via AZ CLI; Deploy & Configure Nginx Ingress, Cert Manager, ClusterIssuer; Example Deployment with TLS Encryption

Managed Kubernetes Services - AWS Elastic Kubernetes Service (EKS) : Deploy EKS Cluster via eksctl; Example Deployment with TLS Encryption with AWS Certificate Manager & Load Balancer Service

Local Kubernetes Cluster - KIND (Kubernetes in Docker): Installation, Example Deployment with NodePort Service, Install Kubernetes Dashboard

Local Kubernetes Cluster - Minikube with Virtualbox: Installation, Example Pod with Port Forwarding, Example Deployment with NodePort Service

Velero Open-Source Kubernetes Backups: Velero Helm Deployment, Backup and Restore a Kubernetes Namespace from an AWS S3 Bucket

Rancher Kubernetes Management Platform: Cert Manager Helm Deployment, Rancher Helm Deployment with Rancher CA certificate, Export Root CA Certificate, Ingress Resource, Access Rancher with TLS Encryption

HashiCorp Vault: Kubernetes Secrets with External Secrets Operator (ESO)

PostgreSQL: PostgreSQL HA Cluster Deployment with Kubernetes Operator, Cluster Failover Test, External Access via Master LoadBalancer, Access Postgres Operator UI with TLS encryption

PostgreSQL: PostgreSQL Kubernetes Deployment via Helm, PostgreSQL Monitoring via Kube-Prometheus-Stack

Kubernetes KubeVirt - Run KVM based Virtual Machines in Kubernetes: Deploy CirrOS example VM, Deploy Debian VM with Cloud-init and DataVolume / PersistentVolumeClaim

Kubernetes Kuberhealthy - Kuberhealthy with Kube-Prometheus-Stack, Example Health Checks

Ansible AWX: Kubernetes Deployment with AWX Operator, Storage Setup (Storage Class, PersistentVolume with NFS, PersistentVolumeClaim), TLS Encryption with Nginx Ingress and Kubernetes Secret

Deploying with Flux: Deploy Manifests from public and private GitHub Repositories into Kubernetes Cluster, Flux Commands

Deploying with Flux: Deploy Manifests from public and private GitLab.com Repositories into Kubernetes Cluster

Deploying with Flux: Deploy Manifests from private Repositories of a self-hosted GitLab Instance into Kubernetes Cluster

Argo CD with GitLab CI, Part 1: Table of Contents, Mermaid Flowchart, Setup Overview

Argo CD with GitLab CI, Part 2: GitLab Repositories (Source Code and Pipeline Repository, Helm Chart Repository), Deploy Key for CI Pipeline

Argo CD with GitLab CI, Part 3: Setting Up Argo CD, Argo CD CLI and CoreDNS

Argo CD with GitLab CI, Part 4: Argo CD Configuration (Add GitLab Host Keys, GitLab Registry Kubernetes Secret, Connect GitLab Repository, Deploy Argo CD Application)

Prometheus & Grafana - Kubernetes K8s Deployment: Prometheus & Node Exporter Helm Deployment, Grafana Deployment with NodePort Service; Detailed Visualization of Kubernetes Metrics with Grafana Dashboard

Loki & Grafana - Kubernetes K8s Deployment with Several Loki Instances for Seperated Data Sources; Nginx Ingress with TLS Secret; Promtail Helm and Docker Container Deployment

Loki, Grafana & Promtail Stack - Deployment with Helm Chart in a K3s Kubernetes Cluster, NodePort Service and Traefik Ingress with TLS Secret; Promtail Helm Deployment for External Loki Data Source

Jenkins CI Setup: Connect Jenkins to Bitbucket, Create and Run a Test-Job; Connect Jenkins to Artifactory, Build Example Project from GitHub and Push Artifacts to Artifactory Maven Repository

Jenkins: Kubernetes Deployment, Storage Setup (Storage Class, PersistentVolume with NFS), TLS Encryption with Nginx Ingress and Kubernetes Secret

Artifactory: Kubernetes Deployment, Storage Setup (External Storage Provider with NFS Subdir External Provisioner), TLS Encryption, Nginx Ingress

AWS Elastic Kubernetes Service (EKS) with Terraform: Deploying an EKS Cluster with Custom VPC and Subnet Scheme via Terraform, Example Deployment with LoadBalancer and TLS Encryption

ElasticStack: Kubernetes Deployment, Elasticsearch, Kibana, Filebeat, Metricbeat

Nextcloud - Kubernetes Deployment

IT Theory: Core Components of the Kubernetes Architecture