Kubernetes Lab Tutorial

Kubernetes is an open-source platform for automating deployment, scaling, and operations of application containers across a cluster of hosts. This tutorial is for personal use only. It's just a lab guide, not a reference for Kubernets. Please go to the project docs for more details about what Kubernets is and how does it work.

Content

1. Architecture

   • etcd
   • API Server
   • Controller Manager
   • Scheduler
   • Agent
   • Proxy
   • CLI

2. Core Concepts

   • Pods
   • Labels
   • Replica Sets
   • Deployments
   • Services
   • Volumes
   • Config Maps
   • Daemons
   • Jobs
   • Cron Jobs
   • Namespaces
   • Quotas and Limits

3. Cluster Networking

   • Pod Networking
   • Exposing services
   • Service discovery
   • Accessing services
   • External services
   • Ingress controller
   • Static Pods
   • Network Policies

4. Data Management

   • Local Persistent Volumes
   • Volume Access Mode
   • Volume State
   • Volume Reclaim Policy
   • Manual volumes provisioning
   • Storage Classes
   • Dynamic volumes provisioning
   • Redis benchmark
   • Stateful Applications
   • Configure GlusterFS as Storage backend
   • Configure Ceph as Storage backend

5. Cluster Healing

   • Cluster Backup and Restore
   • Control Plane Failure
   • Worker Failure

6. Securing the Cluster

   • Requirements
   • Install binaries
   • Create TLS certificates
   • Configure etcd
   • Configure the Control Plane
   • Configure the clients
   • Configure the Compute Plane
   • Define the Network Routes
   • Configure DNS service

7. Scaling the Control Plane

   • Configuring multiple etcd instances
   • Configuring multiple APIs servers
   • Configuring multiple Controller Managers
   • Configuring multiple Schedulers
   • Configuring the Load Balancer
   • APIs server redundancy
   • Controllers redundancy

8. Accessing the cluster

   • Service Accounts
   • Authentication
   • Authorization
   • Admission Control
   • Pod Security Context

9. The APIs Server

   • Accessing the APIs Server
   • Exploring the APIs Server
   • APIs Aggregation
   • Custom Resources
   • Custom Controllers

10. Custer Monitoring

    • Resources usage
    • cAdvisor
    • Metric Server
    • Pods Autoscaling
    • Nodes Autoscaling