Agenda

• Whats the difference between Cloud and Cloud Native ?
• Whats the difference between Virtual Machines and Containers ?
• Whats the difference between Docker and Kubernetes ?
• Why do we need Kubernetes ?
• What is a container ?
• What is a Pod ?
• What is a Node ?
• What is a Cluster ?

Agenda (contd..)

• What is a Namespace ?
• What is a Deployment ?
• What is a Service ?
• What is a ConfigMap ?
• What is a Secret ?
• What is a Volume ?
• What is a Persistent Volume (PV) ?
• What is a Persistent Volume Claim (PVC) ?
• What is a StatefulSet ?
• And many more...

These are know as k8s Objects

Are you getting overwhelmed ?

Don't worry , I got you covered

Prerequisites

• Basic understanding of Linux commands
• Basic understanding of Docker
• Basic understanding of YAML
• Basic understanding of Networking
• Basic understanding of Virtualization
• Basic understanding of Cloud Computing

Production k8s Clusters

• Google Kubernetes Engine (GKE)
• Amazon Elastic Kubernetes Service (EKS)
• Azure Kubernetes Service (AKS)
• DigitalOcean Kubernetes
• K3s (Lightweight k8s for IoT and Edge devices)
• OpenShift (RedHat's k8s distribution)
• Rancher (k8s management platform)
• VMware Tanzu (Enterprise k8s platform)
• IBM Cloud Kubernetes Service

Local k8s Clusters

• Minikube
• MicroK8s
• kind (Kubernetes IN Docker)
• k3d (k3s in Docker)
• Docker Desktop (comes with k8s support)
• Podman (comes with k8s support)

Note: Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System. It is a popular alternative to Docker.

For now we will be using kind (Kubernetes IN Docker) to set up a local k8s cluster

• kind runs k8s clusters in Docker containers
• kind is primarily designed for testing k8s itself, but may be used for local development and CI
• kind is a great tool for learning and experimenting with k8s
• kind is easy to set up and use
• kind is open source and free to use
• kind is maintained by the k8s community

Setup k8s in podman desktop

Getting Started

• Install Docker Desktop (Windows/Mac) or Docker Engine (Linux)
• Install kubectl (Kubernetes command line tool)

# For Windows
winget install -e --id Kubernetes.kubectl 
winget install -e --id ahmetb.kubectx
winget install -e --id Helm.Helm
# For Mac & Linux
brew install kubectl kubectx helm 

• Install kind (Kubernetes IN Docker) : link

Setting up a local Kubernetes Cluster using kind

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4

nodes:
- role: control-plane
  image: kindest/node:v1.32.2
- role: worker
  image: kindest/node:v1.32.2
- role: worker
  image: kindest/node:v1.32.2
  extraPortMappings:
  - containerPort : 80 
    hostPort : 80
    protocol : TCP 
  - containerPort : 443
#- role: worker
#  image: kindest/node:v1.31.2
networking:
  apiServerAddress: ""   # Bind to all interfaces (including the public IP)
  apiServerPort: 45803           # External port for API server
  

A normal slide

H1 again

H2

H3

• bullet

quote

code

text

Title page ad hoc fix

• If the title of your presentation is too long and the border intersects with the text underneath, use the following

# Title
<br/>
<!-- empty line here --->
Author's name
University of XYZ
...

• make sure to leave an empty line below the <br/> tag