VMware Kubernetes Fundamentals and Cluster Operations

This four-day course is the first step in learning about Containers and Kubernetes Fundamentals and Cluster Operations. Through a series of lectures and lab exercises, the fundamental concepts of containers and Kubernetes are presented and put to practice by containerizing and deploying a two-tier application into Kubernetes.

Duration

4 days

Audience

Anyone who is preparing to build and run Kubernetes clusters

Prerequisites

• Linux concepts and command line proficiency

• General networking proficiency

By the end of the course, you should be able to meet the following objectives:

• Build, test, and publish Docker container images

• Become familiar with YAML files that define Kubernetes objects

• Understand Kubernetes core user-facing concepts, including pods, services, and deployments

• Use kubectl, the Kubernetes CLI, and become familiar with its commands and options

• Understand the architecture of Kubernetes (Control plane and its components, worker nodes, and kubelet)

• Learn how to troubleshoot issues with deployments on Kubernetes

• Apply resource requests, limits, and probes to deployments

• Manage dynamic application configuration using ConfigMaps and Secrets

• Deploy other workloads, including DaemonSets, Jobs, and CronJobs

• Learn about user-facing security using SecurityContext, RBAC, and NetworkPolicies

1 Course Introduction

• Introductions and objectives

2 Containers

• What and Why containers

• Building images

• Running containers

• Registry and image management

3 Kubernetes Overview

• Kubernetes project

• Plugin interfaces

• Building Kubernetes

• Kubectl CLI

4 Beyond Kubernetes Basics

• Kubernetes objects

• YAML

• Pods, replicas, and deployments

• Services

• Deployment management

• Rolling updates

• Controlling deployments

• Pod and container configurations

5 Kubernetes Networking

• Networking within a pod

• Pod-to-Pod Networking

• Services to Pods

• ClusterIP, NodePort, and LoadBalancer

• Ingress controllers

• Service Discovery via DNS

6 Stateful Applications in Kubernetes

• Stateless versus Stateful

• Volumes

• Persistent volumes claims

• StorageClasses

• StatefulSets

7 Additional Kubernetes Considerations

• Dynamic configuration

• ConfigMaps

• Secrets

• Jobs, CronJobs

8 Security

• Network policy

• Applying a NetworkPolicy

• SecurityContext

• runAsUser/Group

• Service accounts

• Role-based access control

9 Logging and Monitoring

• Logging for various objects

• Sidecar logging

• Node logging

• Audit logging

• Monitoring architecture

• Monitoring solutions

• Octant

• VMware vRealize® Operations Manager™

10 Cluster Operations

• Onboarding new applications

• Backups

• Upgrading

• Drain and cordon commands

• Impact of an upgrade to running applications

• Troubleshooting commands

• VMware Tanzu™ portfolio overview