Gain insights into Docker basics, Kubernetes architecture, and cluster management. Delve into creating Dockerfiles and setting up Kubernetes on Azure using Helm charts for efficient container orchestration.

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With the huge shift in the technological world, from running servers on local premises to the cloud, the need for containerization has increased. Kubernetes is a powerful open-source platform to manage containers and their services. This course provides an understanding of Docker and Kubernetes.

You will start with the basics of Docker and an introduction to containers and images. Next, you'll learn to create Dockerfile for building images. Then, you’ll learn about Kubernetes, Kubernetes clusters, nodes, and their working. You will finish this course by setting up your own Kubernetes cluster on top of Azure and using the Helm chart to manage it.

In the 4 years (2015-2019), Kubernetes job searches grew by 2,125% and are continuing to grow. Therefore, understanding the basics of Kubernetes, its architecture, and its working would help you land roles like that of a DevOps engineer and a cloud architect.

Running Kubernetes Cluster using Azure Kubernetes Service

# What are images?
Images are blueprints that contain instructions for creating Docker containers. Containers are running instances of an image.

# What is Dockerfile?
A Dockerfile is a file that contains instructions for building an image. Fortunately, lots of pre-created Docker images are available for us to use. However, if we want to customize our image according to our own needs, we can do that by creating a new Dockerfile. It automates the process of Docker image creation.

To understand it, think of your favorite beverage. A popular example is a tea. Typical instructions to make tea are as follows:
1. Boil a cup of water.
2. Add one spoon of tea leaves.
3. Add one spoon of sugar.
4. Add a cup of milk.
5. Keep boiling for five minutes.
6. Add ginger, and boil for two more minutes.

Similarly, the Dockerfile contains pieces of instructions used to create an image.
 

Let’s understand Dockerfile, images, and containers by comparing them to the previous examples:
- People use a recipe book for making tea. Similarly, the Docker server uses a Dockerfile to create an image.
- Once the tea is made, multiple people can use it. Similarly, once a Docker image is created using the instructions, it can be used to launch multiple containers.


Know about Docker images and ways to create images using Dockerfile.

Introduction

Docker

Docker Assessment

Kubernetes

Kubernetes Assessment

Azure Kubernetes Services

Deploy an Application on AKS

Assessment of Azure Kubernetes Service

Application Management using Helm

Appendix

Images

What are images?

What is Dockerfile?