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

Welcome to this amazing course on Google Kubernetes Engine (GKE) with various real-time lab sessions.

Google Kubernetes Engine (GKE) is the simplest and most common way of setting up a Kubernetes Cluster in GCP.

Below is the list of modules covered in this course.

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, Containers, or Rocket

Section 3: Setup of Kubernetes Cluster in GCP

• Set up a Kubernetes Cluster in the 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 a 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 images for containers like Curl, Ubuntu, Nginx etc.
• Image Pull Policy of containers
• Kubernetes Annotations
• Define Environmental 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 of Selectors
• Equality Based
• 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 the deployment object
• Lab: upgrade the application v1 to v2 using the deployment object
• Lab: Roll back the application to the 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 application using Cluster IP
• Lab 2 - Access the Web application 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, host path
• Lab1: Create a POD with the attached emptyDir volume
• Lab2: Create a POD with the attached emptyDir volume
• Lab1: Create a POD with attached host path volume
• Lab2: Create a POD with attached host path 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