Certified Kubernetes Administrator

1. Core Concepts

  • Overview of Container Orchestration
  • Introduction to Kubernetes
  • Installation Options for Kubernetes
  • Using Managed Kubernetes Service from CSP
  • Installing & Configuring kubectl for Linux
  • Configuring Kubernetes in Minikube in Windows
  • Configuring Kubernetes in Minikube in Linux
  • What is PODS
  • Kubernetes Objects
  • Overview of Kubernetes Cluster Architecture
  • K8S Components – ETCD, kube-apiserver, kube-scheduler
  • Introduction to API
  • Kubernetes API Primitives
  • Creating First POD Configuration in YAML
  • Working with Multi-Container Pods
  • Understanding Commands and Arguments in Kubernetes
  • CLI Documentation of K8s Resources
  • Exposing Ports for PODS
  • Generating Pod Manifests via CLI

3. Services and Networking

  • What is Service
  • Creating our first Service and Endpoint
  • Service Type: ClusterIP, NodePort, Load Balancer
  • Using Selectors for Service Endpoints
  • Port vs TargePort
  • Generating Service Manifests via CLI
  • Overview of Ingress
  • Understanding Ingress Resource and Ingress Controllers
  • Named Based Virtual Hosting (Ingress)
  • Deploying Nginx Ingress Controller
  • Configuring Default BackEnd for Ingress
  • Kubernetes Namespace
  • Service Accounts
  • Named Port

5. Storage

  • What is of Docker Volumes
  • Creating Volumes in Kubernetes
  • PersistentVolume and PersistentVolumeClaim
  • Static vs Dynamic Provisioning of PV
  • ConfigMaps
  • Security Contexts
  • Storage Volume Expansion

7. Logging / Monitoring

  • Kubernetes Events
  • Monitor Cluster Components
  • Deploying Metric Server
  • Understanding Docker Logging Drivers
  • Monitoring Application Logs
  • Monitoring Cluster Component Logs

8. Troubleshooting

  • Troubleshooting Application Failure
  • Solution – Troubleshooting Application Failure
  • Troubleshooting Control Plane Failure
  • Version Skew Support Policy
  • Facilitating OS Upgrades
  • Draining Worker Nodes
  • Taint Based Evictions

2. Workloads & Scheduling

  • What is Labels and Selectors
  • Implementing Labels and Selectors
  • What is ReplicaSets
  • Creating our first ReplicaSet
  • Introduction to Deployments
  • Creating our first deployment
  • Rolling Back Deployments
  • Important Pointers – Deployments
  • Generating Deployment Manifests via CLI
  • What is DaemonSets
  • What is NodeSelector
  • What is Node Affinity
  • Pod Affinity and Pod Anti-Affinity
  • Resource Limits
  • Scheduling Pods without a Scheduler
  • Taints and Tolerations
  • Components of Taints and Tolerations
  • Multi-Container POD Design Patterns
  • Adapter Pattern

4. Security

  • Understanding Authentication
  • Introduction to Asymmetric Key Encryption\
  • Understanding SSL/TLS
  • Creating TLS Certificate for Authentication
  • Understanding Authorization
  • API Groups, Resources and Verbs
  • Access Control based on Namespace
  • ClusterRole and ClusterRoleBinding
  • Network Security Policies
  • Understanding Kubeconfig
  • Creating Kubeconfig from Scratch
  • Kubernetes Secrets
  • Mounting Secrets Inside Pods

6. Cluster Architecture, Installation & Configuration

  • Configuring Cluster with kubeadm
  • Upgrading kudeadm Clusters
  • Kubernetes Cluster from Scratch
  • Provisioning Release Binaries – New
  • Configuring the Certificate Authority
  • Installing and Configuring ETCD – New
  • Configuring kube-api server NEW
  • Configuring Controller Manager – New
  • Configuring Scheduler – NEW
  • Validating Cluster Component Status
  • New – Worker Node Configuration
  • Configuring Networking – New
  • New – RBAC for API to Kubelet Communication
  • Configuring DNS in Cluster – New
  • Kubelet Preferred Instance Type – New
  • Backing and Restoring ETCD
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