Google Kubernetes Engine(GKE) : The Practical Guide [GCP]

Goals

What will you learn in this course:

Course Description:

Section 1: Kubernetes Introduction

· What is Kubernetes

· Why do we use Kubernetes?

· Kubernetes Implementations - GCP, AWS, Azure, Minikube etc

· Monolithic approach for developing applications.

· Microservices Vs. Monolithic

· Kubernetes Gateway API

· Evolution of Containers, Dockers & VMs

· Microservices running as containers

· Kubernetes - Orchestration or container management tool

· Features of Kubernetes

Section2: Architecture of the Kubernetes Cluster

· The architecture of the Kubernetes Cluster

· Understand architecture with various examples

· Working with Kubernetes

· Roles of Master Node

· Components of Control Plane (Master Node)

· API Server

· Etcd

· Scheduler

· Controller Manager

· Kubelet

· Service Proxy

· POD

· Container Engine - Docker, Containerd, or Rocket

Section 3: Setup of Kubernetes Cluster in GCP

· Set up a Kubernetes Cluster in GCP Environment

· Cluster basics, Node Pools, Networking etc.

· Activate cloud shell to access Kubernetes Cluster

· Configure Kubectl

Section 4: Kubernetes Concepts in GCP

· Create the first POD using manifest file written in YAML Language

· How to deploy ubuntu pod in Kubernetes?

· Check logs for pods and containers in Kubernetes

· Create multiple containers in a POD

· Retrieve information from running containers

· Get a Shell to a Running Container

· Multiple Containers in a Pod (Ubuntu, Nginx Web Sever)

· Download image for containers like Curl, Ubuntu, Nginx etc.

· Image Pull Policy of containers

· Kubernetes Annotations

· Define Environment variables

· Pod-to-pod communication

· Login to Cluster nodes using cloud shell or control plane

Section 5: Kubernetes Pod Restart Policy

· Overview of Pod Restart Policies

· Three restart policies: Always, OnFailure & Never

· Lab - Restart Policy: Always

· Lab - Restart Policy: OnFailure

· Lab - Restart Policy: Never

Section 6: Labels and Selectors in Kubernetes

· Labels & Selectors

· Lab - Labels and Selectors

· Commands for managing labels & selectors

· Declarative vs. Imperative Kubernetes commands

· Lab - Search the pod using labels

· Two types Selectors

o Equality Based

o Set based

· Lab - Search the pod using set-based

· Overview of Node Selector

· Lab - Create a pod on a specific node

Section 7: Scaling & Replication

· What is ReplicationController - RC?

· Features of RC

· Lab - Create Replicas of POD using RC

· Lab - Deleting a pod of ReplicationController

· Lab - Scale-up & scale-down the pod: ReplicationController

· What is ReplicaSet - RS?

· Lab - Create Replicas of POD using ReplicaSet

· Lab - Scale-up & scale-down the pod: ReplicaSet

· Difference between ReplicationController & ReplicaSet

Section 8: Deployment and Rollback

· Overview of Deployment and Rollback

· Lab: Launch two PODs using deployment object

· Lab: upgrade the application v1 to v2 using deployment object

· Lab: Roll back the application to previous version

· Lab: Roll back to any specific version

Section 9: Kubernetes Networking

· Overview of Kubernetes Networking

· Containers within a POD communicate via localhost

· Containers communicate via localhost using a specific port

· Pod-to-pod communication via Pod IP

· Practice Lab - Pod-to-pod communication

Section 10: Kubernetes Services: ClusterIP, Nodeport and LoadBalancer

· Object - Service

· Why service is required?

· Service type - Cluster IP, NodePort & LoadBalancer

· Lab 1 - Access the Web appl using Cluster IP

· Lab 2 - Access the Web appl using Cluster IP

· Lab 1 - Access the Web appl using NodePort

· Lab 2 - Access the Web appl using NodePort

· Lab 3 - Access the Web appl using specific NodePort

· About LoadBalancer

· Lab 1 - Kubernetes Services: LoadBalancer

· Lab 2 - Kubernetes Services: LoadBalancer

Section 11: Volumes in Kubernetes Cluster

· Overview of Volumes in Kubernetes Cluster.

· Volume types – EmptyDir, hostpath

· Lab1: Create a POD with attached emptyDir volume

· Lab2: Create a POD with attached emptyDir volume

· Lab1: Create a POD with attached hostpath volume

· Lab2: Create a POD with attached hostpath volume

Section 12: Persistent Volumes

· Overview of Persistent volumes

· Create a storage class for GKE

· Create a Persistent Volume using PVC

· GKE Pod With Persistent Volume

· Last lecture

Prerequisites

What are the prerequisites for this course?

• PC or Laptop with internet Connection
• Must have an account on Google Cloud Platform (GCP)
• You don't need to have any basic knowledge of Kubernetes. Course will get started from very very basics of Kubernetes and take you to very advanced levels
• Motivation to Learn Docker, Kubernetes, DevOps required