Kubernetes Mastery

Develop and Deploy Cloud Native Applications at Scale

Section 1 – Introduction

L1 Introduction

Section 2 – Project Files

L1 Project Files

Section 3 – Why Kubernetes Dominates the Cloud

L1 Why Kubernetes Dominates the Cloud (Kubernetes Overview)

Section 4 – Downloads and Setup

L1 Docker Desktop Linux Containers

L2 Setting Up a Single-Node Kubernetes Cluster

L3 VS Code Kubernetes Extension Setup

Section 5 – Pods and Containers

L1 Pods and Containers

L2 Extra Practice (Grade Submission API)

Section 6 – Service Discovery

L1 Service Discovery

Section 7 – Namespace

L1 Namespace

Section 8 – Resiliency and Self Healing

L1 Resiliency and Self Healing

Section 9 – Deployments and Pod Replicas

L1 Deployments and Pod Replicas

L2 Automated Deployment

Section 10 – Rolling Updates and Rollbacks

L1 Rolling Updates and Rollbacks

Section 11 – Liveness and Readiness Probes

L1 Liveness and Readiness Probes

Section 12 – StatefulSet and Persistent Volumes

L1 Anatomy of a Connection String

L2 StatefulSet and Persistent Volumes

L3 Database Authentication

Section 13 – ConfigMap and Secret

L1 ConfigMap and Secret

Section 14 – Horizontal Pod Autoscaler (HPA)

L1 Horizontal Pod Autoscaler

L2 Follow-up

Section 15 – Ingress Controller

L1 Ingress Controller

L2 Nginx Retirement

Section 16 – Helm Charts

L1 Action Required - Installing Helm (Mac)

L2 Action Required - Installing Helm (Windows)

L3 Installing Helm Charts

L4 Upgrading our Helm Charts

Section 17 – Helm Package Manager

L1 Helm Package Manager

Section 18 – Kubernetes Operators

L1 Kubernetes Operators

L2 Cleaning Up

Section 19 – Preparing for Deployment

L1 Roadmap

L2 Setting up an AWS Account and IAM User

L3 Setting up AWS CLI (Mac)

L4 Setting up AWS CLI (Windows)

L5 Setting up eksctl (Mac)

L6 Setting up eksctl (Windows)

Section 20 – Deploying to AWS

L1 Deploying to AWS

L2 Final Clean Up

Section 21 – Next Course

L1 Next Step - Kubernetes RBAC Training

StatefulSet and Persistent Volumes

Key Takeaways

Managing stateful applications and their storage requirements is time-consuming and error-prone.

Automatic Storage Orchestration

With Kubernetes, you can fully rely on the control plane to manage storage for your stateful applications:

Automatic provisioning and attachment of storage volumes
Seamless data persistence across pod lifecycle events
Built-in mechanisms for maintaining pod identity and state

Key Components of StatefulSet Storage

Persistent Volume Claims (PVCs): Requests for storage resources
Volume Claim Templates:
- Define the PVC specification within the StatefulSet
- Automatically generate PVCs for each pod in the StatefulSet
- Example: If a StatefulSet has 3 replicas, 3 PVCs will be dynamically created
Persistent Volumes (PVs): Actual storage resources that fulfill PVCs
Storage Orchestration:
- Each StatefulSet pod gets its own PVC, generated from the template
- PVC binds to an appropriate PV
- PV is mounted at the specified directory in the stateful container