The Complete Docker And Kubernetes Course: From Zero To Hero

The Complete Docker And Kubernetes Course: From Zero To Hero
Published 10/2024
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 21.07 GB | Duration: 32h 39m

30+ hours of content and 130+ hands-on labs for you to master working with Docker, Kubernetes, and Kustomize!

What you'll learn

Master the Fundamentals of Docker and Containerization Technologies

Gain Practical Experience with Docker CLI and Container Lifecycle Management

Build, Customize, and Manage Docker Images Using Dockerfiles and Registries

Dive Deep into Advanced Image Creation Techniques and Optimization Strategies

Implement Robust Data Persistence and Storage Solutions with Docker Volumes

Orchestrate Complex Multi-Container Applications Using Docker Compose

Master Kubernetes Fundamentals and Core Architecture

Gain Practical Experience with Kubernetes Objects and the kubectl CLI

Deploy, Scale, and Update Applications Using ReplicaSets and Deployments

Implement Advanced Resource Management and Application Health Monitoring

Manage Persistent Storage and Stateful Applications with Kubernetes

Enhance Security and Automate Configuration Management in Kubernetes

Leverage Kustomize to Manage Multiple Kubernetes Environments

Explore Google Kubernetes Engine by Deploying and Running a Fully-Fledged Application in a GKE Cluster

Requirements

Familiarity with any programming language is highly desirable to make the most of this course

Familiarity with running commands in the terminal and the command line

Description

Welcome to Docker and Kubernetes for Beginners: From Zero to Hero! Are you ready to dive into the world of containerization and orchestration with the industry's leading tools? This course is designed to take you from a beginner to a proficient practitioner, equipping you with an in-depth understanding of Docker and Kubernetes concepts.Why Learn Docker and Kubernetes?Docker and Kubernetes have revolutionized the way we develop, deploy, and manage applications in modern architectures. Here's why learning these technologies is essential:Gain Highly Demanded Skills: Docker and Kubernetes are everywhere, and companies need people who can work effectively with these tools! By learning them, you'll make yourself more attractive to employers in the tech industry and enhance your career prospects for promotions, new job opportunities, and potentially higher salaries. You'll stand out in the job market!Improve and Streamline the Development Process: Docker enables you to package applications with all their dependencies into isolated and portable containers, ensuring consistency across development, testing, and production environments.Master Application Deployment, Scaling and Management: Kubernetes will enable you to deploy, manage, and scale applications automatically, making complex tasks such as rolling out new application versions and managing advanced system architectures much simpler.Learn Versatile Tools: Docker and Kubernetes are platform-agnostic, which means that your knowledge will be valuable and applicable independently of which platform you are using to run them! Whether it's on-premises, on AWS, GCP, or Azure, knowing how to work effectively with Docker and Kubernetes will make you a great contributor to your projects!By investing time in learning Docker and Kubernetes, you're not just adding tools to your toolbox—you're enhancing your professional value, opening doors to new opportunities, and equipping yourself with skills that will serve you throughout your career!Why Should You Choose This Course?This course offers a unique blend of theoretical knowledge and practical application, providing a comprehensive understanding of Docker and Kubernetes. Here's why you should include this course in your learning journey:Learn by Doing with Hands-On Exercises: I truly believe in the power of learning by doing. I've not only crafted more than 100 hands-on lectures for you to practice what we discuss, I've also included all of them as written exercise guidelines for you to try and experiment as much as you want before watching the solution recordings! The exercises build on each other and increase gradually in complexity, deepening your understanding and skills while discussing relevant topics of working with Docker and Kubernetes!Comprehensive, Real-World Projects: We'll also go beyond individual hands-on exercises on Docker and Kubernetes, and we'll practice deploying entire applications by going through the entire cycle of coding, building, publishing, and running them!Go Beyond the Purely Technical Points: I place a strong focus on going beyond the "this is how you do it", copy-paste approach. My genuine interest is to teach you how these tools work behind the scenes, how you reason about their behavior, how you debug common issues and situations, and how you make the best use of them in your day-to-day.Real-World Kubernetes Experience with Google Cloud: Our final project is to deploy our application to a managed Kubernetes cluster in Google Cloud. This will give you hands-on experience not only with Docker and Kubernetes, but also with how these tools behave in a managed, real-world setup like Google Kubernetes Engine (GKE).Expert Guidance: I bring several years of experience as a Senior DevOps Engineer, Infrastructure Consultant, and IT trainer within one of the leading IT consulting companies worldwide, and I'm super excited to share my knowledge with you!Which Skills Will You Acquire During This Course?As you go through this course, you will gain a comprehensive and valuable set of skills, including:Creating and Distributing Docker Images: you will learn how to build, customize, optimize, and distribute Docker images using best practices. Running and Managing Containers: you will learn the many aspects related to running containers using Docker, Compose, and Kubernetes, and you will gradually understand how these tools fit together and tackle challenges at different levels of running and managing software applications.Docker Networking and Security Essentials: you will gain a solid foundation on security aspects related to running containers, as well as how to connect containers together using multiple networking solutions.Understanding the Kubernetes Architecture: you will gain a deep and solid understanding of the different components of a Kubernetes cluster, their functions, and how they interact together to deliver this amazing system.Running Applications, Persisting Data, and Managing Resources in Kubernetes: this course takes a deep dive into the many objects Kubernetes offers to run applications, both stateless and stateful, as well as into multiple dimensions of managing compute resources and Kubernetes objects effectively.Kubernetes Security Fundamentals: you will acquire a strong sense of why security is important in Kubernetes, and the many areas where security plays a role in our applications. We will also take a deeper dive into how to set Role-Based Access Control (RBAC) rules, network policies, and pod security standards to ensure your workloads have an additional layer of security.Working with Managed Kubernetes Clusters: you will go through the entire process of creating a cloud account with Google Cloud, all the way to having your applications up and running in a Kubernetes cluster and reachable from the internet securely! This will give you a thorough understanding of how managed Kubernetes services make our lives as developers much easier by integrating multiple services from cloud providers.Get ready to elevate your career with our Docker and Kubernetes for Beginners: From Zero to Hero course. Let's start this exciting journey together!

Overview

Section 1: Course Introduction

Lecture 1 Welcome and motivation!

Lecture 2 How to make best use of this course

Lecture 3 Aligning expectations

Lecture 4 Course resources

Section 2: [Docker] Introduction to Containers

Lecture 5 Section Introduction

Lecture 6 Why Using Containers?

Lecture 7 Containers and Virtual Machines (VMs)

Lecture 8 Docker Architecture and Components

Section 3: [Docker] Installing Docker and Necessary Tools

Lecture 9 Section Introduction

Lecture 10 [MacOS Users] Installing Docker on MacOS

Lecture 11 [Linux Users] Installing Docker on Linux

Lecture 12 [Linux Users] Running Docker without Sudo

Lecture 13 [Windows Users] Installing Windows Subsystem for Linux (WSL)

Lecture 14 [Windows Users] Windows Subsystem for Linux Features

Lecture 15 [Windows Users] Installing Docker in Windows

Lecture 16 [Windows Users] Using Docker in Windows Subsystem for Linux (WSL)

Lecture 17 Exploring Play with Docker

Lecture 18 Installing NodeJS

Lecture 19 Installing Postman

Lecture 20 Installing Visual Studio Code

Section 4: [Docker] Running Containers with Docker

Lecture 21 Section Introduction

Lecture 22 Hands-On: Running Your First Container

Lecture 23 The Container Lifecycle

Lecture 24 Hands-On: Working with the Docker CLI - Part 1

Lecture 25 Hands-On: Working with the Docker CLI - Part 2

Lecture 26 Hands-On: Getting Help in the Docker CLI

Section 5: [Docker] Project - Customizing NGINX Containers

Lecture 27 Project Overview

Lecture 28 Running NGINX Containers

Lecture 29 Modifying the Contents of Our NGINX Container

Lecture 30 Project Conclusion

Section 6: [Docker] Introduction to Docker Images

Lecture 31 Section Introduction

Lecture 32 What Are Docker Images?

Lecture 33 Container Registries

Lecture 34 Hands-On: Introduction to DockerHub

Lecture 35 Hands-On: Logging Into DockerHub in the Docker CLI

Lecture 36 Hands-On: Managing Images with the Docker CLI

Lecture 37 Introduction to Dockerfiles

Lecture 38 Hands-On: Creating Our First Dockerfile for Nginx

Lecture 39 Hands-On: Copying Local Files Into Our Image

Lecture 40 Hands-On: Images vs. Containers

Section 7: [Docker] Project - Containerize an Express App

Lecture 41 Project Introduction

Lecture 42 Create a Hello World Express App

Lecture 43 Save and Return Users in Memory

Lecture 44 Test Users App

Lecture 45 Dockerize Our Express App

Lecture 46 Explore Interacting with Containers + Project Cleanup

Section 8: [Docker] Images Deep Dive

Lecture 47 Section Introduction

Lecture 48 Hands-On: Docker's Layered Architecture

Lecture 49 Hands-On: Build Contexts

Lecture 50 Hands-On: Skipping files with Dockerignore

Lecture 51 Hands-On: Introduction to Environment Variables

Lecture 52 Hands-On: Setting Environment Variables via the CLI

Lecture 53 Hands-On: Setting Environment Variables via Files

Lecture 54 Hands-On: CMD vs. ENTRYPOINT

Lecture 55 Introduction to Distroless Images

Lecture 56 Hands-On: Motivation to Multistage Dockerfiles

Lecture 57 Hands-On: Multistage Dockerfiles and Distroless Images

Lecture 58 Hands-On: Adding Typescript to Our Express App

Lecture 59 Hands-On: Update Dockerfile to Transpile Typescript Code

Lecture 60 Hands-On: Optimizing Images - The Role of Base Images

Lecture 61 Hands-On: Optimizing Images - The Role of Instruction Order

Lecture 62 Hands-On: Optimizing Images - The Role of Dependencies

Lecture 63 Hands-On: Revisiting and Optimizing Our Typescript Dockerfile

Section 9: [Docker] Project - Containerize React App

Lecture 64 Project Introduction

Lecture 65 Initializing the React App

Lecture 66 Build and Serve the React App

Lecture 67 Create a Dockerfile for Our React App - Part 1

Lecture 68 Create a Dockerfile for Our React App - Part 2

Section 10: [Docker] Volumes and Data Persistence

Lecture 69 Section Introduction

Lecture 70 Hands-On: Why Do We Need Volumes?

Lecture 71 Introduction to Volumes

Lecture 72 Hands-On: Bind Mounts

Lecture 73 Hands-On: Named Volumes

Lecture 74 Hands-On: Managing Volumes with the CLI

Section 11: [Docker] Advanced Topics - Resource Management, Restart Policies, and Networking

Lecture 75 Section Introduction

Lecture 76 Hands-On: Setting CPU Limits for Containers

Lecture 77 Hands-On: Setting Memory Limits for Containers

Lecture 78 Hands-On: Restart Policies

Lecture 79 Introduction to Networking in Docker

Lecture 80 Hands-On: The Default Bridge Network

Lecture 81 Hands-On: User-Defined Networks

Lecture 82 Hands-On: The Host Network

Section 12: [Docker] Project - Code and Deploy a Key-Value App with Data Persistence

Lecture 83 Project Introduction

Lecture 84 Running a MongoDB Server

Lecture 85 Adding Root Credentials to MongoDB

Lecture 86 Adding Credentials for the Key-Value Database

Lecture 87 Defining Ports, Volumes, and Networks

Lecture 88 Improving the Structure of Our Utility Scripts

Lecture 89 Setting Up the Express App

Lecture 90 Dockerizing the Express App

Lecture 91 Create Scripts to Initialize the Backend Container

Lecture 92 Adding Hot Reloading with Nodemon

Lecture 93 Defining the API Routes

Lecture 94 Creating and Getting Key-Value Pairs

Lecture 95 Updating and Deleting Key-Value Pairs

Lecture 96 Testing the Application and Final Cleanup

Section 13: [Docker] Docker Compose

Lecture 97 Section Introduction

Lecture 98 Docker Compose Overview

Lecture 99 Docker-Compose vs. Compose CLI Commands

Lecture 100 Hands-On: Run MongoDB with Docker Compose

Lecture 101 Hands-On: Environment Variables in Docker Compose

Lecture 102 Hands-On: Bind Mounts in Docker Compose

Lecture 103 Hands-On: Volumes and Networks in Docker Compose

Lecture 104 Hands-On: Adding a Backend Service to Our Docker Compose File

Lecture 105 Hands-On: Service Dependencies in Docker Compose

Lecture 106 Hands-On: Hot Reloading and Watching for Changes

Lecture 107 Hands-On: Docker Compose CLI

Lecture 108 Hands-On: Getting Help with Docker Compose CLI

Section 14: [Docker] Project - Code and Deploy a Notes App with Docker Compose

Lecture 109 Project Introduction

Lecture 110 Setup NPM Projects

Lecture 111 Dockerize the Notebooks Backend

Lecture 112 Setup Docker Compose for Notebooks Services

Lecture 113 Setup Docker Compose for Notes Services

Lecture 114 Use Multistage Builds for Our Images

Lecture 115 Merging Multiple Projects in Docker Compose

Lecture 116 Implement the NGINX Reverse Proxy

Lecture 117 Establish the Connections between Services

Lecture 118 Setup Models and Routes for the Notebooks Service

Lecture 119 Implement Routes to Create and Retrieve Notebooks

Lecture 120 Implement Routes to Update and Delete Notebooks

Lecture 121 Code Refactorings

Lecture 122 Implement Routes and Business Logic in the Notes Backend

Lecture 123 Storing Notebook IDs in the Notes Service - Part 1

Lecture 124 Storing Notebook IDs in the Notes Service - Part 2

Lecture 125 Storing Notebook IDs in the Notes Service - Part 3

Section 15: [Kubernetes] 10.000-Foot Overview

Lecture 126 Section Introduction

Lecture 127 Why Use Kubernetes?

Lecture 128 What Is Kubernetes?

Lecture 129 Kubernetes Architecture

Lecture 130 The Control Plane

Lecture 131 The Data Plane

Lecture 132 The kubectl CLI

Section 16: [Kubernetes] Installing Tools

Lecture 133 [MacOS Users] Installing Kubectl in MacOS

Lecture 134 [MacOS Users] Installing Minikube in MacOS

Lecture 135 [Linux Users] Installing Kubectl in Linux

Lecture 136 [Linux Users] Installing Minikube in Linux

Lecture 137 [Windows Users] Installing Kubectl in Windows Subsystem for Linux (WSL)

Lecture 138 [Windows Users] Installing Minikube in Windows Subsystem for Linux (WSL)

Section 17: [Kubernetes] Running Containers in Kubernetes

Lecture 139 Section Introduction

Lecture 140 Introduction to Pods

Lecture 141 The Pod Lifecycle

Lecture 142 Hands-On: Creating Pods with Kubectl

Lecture 143 Hands-On: Managing Pods with Kubectl

Lecture 144 Hands-On: Exposing Pods via Services

Lecture 145 Hands-On: Color API - Implement v1.0.0

Lecture 146 Hands-On: From Dockerfiles to Pods

Section 18: [Kubernetes] Object Management and YAML Manifests

Lecture 147 Section Introduction

Lecture 148 Object Management in Kubernetes

Lecture 149 Kubernetes Manifest Files

Lecture 150 Hands-On: Working with Imperative Commands - Part 1

Lecture 151 Hands-On: Working with Imperative Commands - Part 2

Lecture 152 Hands-On: Generating Kubernetes Manifests with kubectl

Lecture 153 Hands-On: Shortcomings of Imperative Commands with Configuration Files

Lecture 154 Hands-On: Declarative Object Management in Kubernetes

Lecture 155 Hands-On: Migrating from Imperative to Declarative Object Management

Lecture 156 Hands-On: Creating Multiple Kubernetes Manifests in the Same YAML File

Section 19: [Kubernetes] ReplicaSets and Deployments

Lecture 157 Section Introduction

Lecture 158 What Are ReplicaSets?

Lecture 159 Hands-On: Creating and Managing ReplicaSets

Lecture 160 Hands-On: Shortcomings of ReplicaSets - Updating Pods

Lecture 161 Hands-On: Shortcomings of ReplicaSets - Managing Existing Pods

Lecture 162 Introduction to Deployments

Lecture 163 Hands-On: Creating and Managing Deployments

Lecture 164 Hands-On: Updating the Pod Template

Lecture 165 Hands-On: Understanding Rollouts

Lecture 166 Hands-On: Scaling Deployments with Kubectl

Lecture 167 Hands-On: Troubleshooting Failed Rollouts

Section 20: [Kubernetes] Services Deep Dive

Lecture 168 Section Introduction

Lecture 169 Overview of Services

Lecture 170 Hands-On: Color API - Implement v1.1.0: Add hostname information

Lecture 171 Hands-On: Traffic Generator - Implement v1.0.0

Lecture 172 Hands-On: Deploy the Color API and Traffic Generator

Lecture 173 Hands-On: Working with ClusterIP Services

Lecture 174 Hands-On: Working with NodePort Services

Lecture 175 Hands-On: NodePort Services in Linux

Lecture 176 Hands-On: Working with ExternalName Services

Section 21: [Kubernetes] Resource Management

Lecture 177 Section Introduction

Lecture 178 Labels and Selectors

Lecture 179 Hands-On: Labels and Selectors in Kubectl

Lecture 180 Hands-On: Selecting Objects with MatchLabels and MatchExpressions

Lecture 181 Annotations

Lecture 182 Introduction to Namespaces

Lecture 183 Hands-On: Creating and Managing Namespaces

Lecture 184 Hands-On: Cross-Namespace Service Communication

Lecture 185 Introduction to Resource Quotas, Requests, and Limits

Lecture 186 Hands-On: Working with Resource Quotas

Lecture 187 Hands-On: Setting Resource Requests and Limits

Lecture 188 Hands-On: Rollouts, Resource Requests and Limits

Lecture 189 Introduction to Startup, Liveness, and Readiness Probes

Lecture 190 Hands-On: Color API - Implement v1.2.0: Add health endpoints

Lecture 191 Hands-On: Startup Probes in Details

Lecture 192 Hands-On: Color API - Implement v1.2.1: Add dedicated startup endpoint

Lecture 193 Hands-On: Liveness Probes in Details

Lecture 194 Hands-On: Readiness Probes in Details

Section 22: [Kubernetes] Storage and Persistence

Lecture 195 Section Introduction

Lecture 196 Introduction to Volumes

Lecture 197 EmptyDir and Local Volumes

Lecture 198 Hands-On: Working with EmptyDir Ephemeral Storage

Lecture 199 Introduction to Persistent Volume Claims

Lecture 200 Hands-On: Creating Persistent Volumes and Persistent Volume Claims

Lecture 201 Hands-On: Mounting Volumes in Pods and Containers

Lecture 202 Hands-On: Deleting Persistent Volumes and Persistent Volume Claims

Lecture 203 Hands-On: Dynamically Provisioning Persistent Volumes

Lecture 204 Introduction to StatefulSets

Lecture 205 Hands-On: Working with StatefulSets - Creating Persistent Volumes

Lecture 206 Hands-On: Working with StatefulSets - Creating the StatefulSet

Lecture 207 Hands-On: StatefulSets with Dynamically Provisioned Persistent Volumes

Lecture 208 Hands-On: Headless Services

Section 23: [Kubernetes] Configuration Management

Lecture 209 Section Introduction

Lecture 210 Introduction to ConfigMaps

Lecture 211 Hands-On: Color API - Implement v1.3.0: Receive color information externally

Lecture 212 Hands-On: Passing Information from ConfigMaps via Environment Variables

Lecture 213 Hands-On: Mounting ConfigMaps as Volumes

Lecture 214 Introduction to Secrets

Lecture 215 Hands-On: Passing Information from Secrets via Environment Variables

Lecture 216 Hands-On: Mounting Secrets as Volumes

Section 24: [Kubernetes] Project - Deploying a MongoDB Database

Lecture 217 Project Overview

Lecture 218 Create Database Credentials

Lecture 219 Create Headless Service and ConfigMaps

Lecture 220 Create the StatefulSet

Lecture 221 Deploy and Validate the StatefulSet

Lecture 222 Test Scaling the StatefulSet

Lecture 223 Color API - Implement v2.0.0: Refactoring the Code

Lecture 224 Color API - Implement v2.0.0: Persist Data in the MongoDB Database

Lecture 225 Color API - Implement v2.0.0: Implement Database Connection Logic

Lecture 226 Color API - Implement v2.0.0: Implement Routes for Business Logic

Lecture 227 Deploy the New Color API Version

Lecture 228 Project Wrap-Up and Clean-Up

Section 25: [Kubernetes] Security Fundamentals

Lecture 229 Section Introduction

Lecture 230 Introduction to Security in Kubernetes

Lecture 231 Role-Based Access Control (RBAC)

Lecture 232 Hands-On: Overview of Minikube's Roles and ClusterRoles

Lecture 233 The Kubernetes API

Lecture 234 Hands-On: Exploring API Resources

Lecture 235 Hands-On: Creating Two Users: Alice and Bob

Lecture 236 Hands-On: Configure Access Credentials for Alice and Bob

Lecture 237 Hands-On: Setup Permissions to Read Pods

Lecture 238 Hands-On: Use ClusterRoles for Cluster-Wide Permissions

Lecture 239 Hands-On: Exploring Subresources and Permissions

Lecture 240 Introduction to Service Accounts

Lecture 241 Hands-On: Default Service Accounts

Lecture 242 Hands-On: Creating Our Own Service Accounts

Lecture 243 Hands-On: RBAC - Clean-Up

Lecture 244 Introduction to Network Policies

Lecture 245 Calico vs. Native Kubernetes Network Policies

Lecture 246 Hands-On: Deny All Ingress Traffic

Lecture 247 Hands-On: Allow Traffic Between Specific Pods

Lecture 248 Hands-On: Exploring Pod Selectors

Lecture 249 Hands-On: Combining Pod Selectors

Lecture 250 Hands-On: Handling Egress Traffic

Lecture 251 Hands-On: Network Policies and Namespaces

Lecture 252 Introduction to Pod Security Standards (PSS)

Lecture 253 Hands-On: Working with Pod Security Standards

Lecture 254 Hands-On: Exploring the Pod Security Standards Documentation

Section 26: [Kubernetes] Kustomize

Lecture 255 Section Introduction

Lecture 256 Introduction to Kustomize

Lecture 257 Hands-On: Our First Kustomize Project

Lecture 258 Bases and Overlays

Lecture 259 Hands-On: Creating the Dev and Prod Overlays

Lecture 260 Transformations

Lecture 261 Hands-On: Working with Transformations

Lecture 262 Hands-On: Generating ConfigMaps

Lecture 263 Hands-On: Generating Secrets

Lecture 264 Hands-On: Introduction to Patching

Lecture 265 Hands-On: Working with Strategic Merge Patches

Lecture 266 Hands-On: Working with JSON Patches

Section 27: [Kubernetes] Project - Deploying Our Color API to Google Kubernetes Engine (GKE)

Lecture 267 Project Overview

Lecture 268 Creating a Google Cloud Platform (GCP) Account

Lecture 269 Overview of Project Costs

Lecture 270 Overview of GCP's UI Console

Lecture 271 Installing the gcloud CLI

Lecture 272 Exploring the GKE UI Console

Lecture 273 Create a Google Kubernetes Engine (GKE) Cluster

Lecture 274 Connecting kubectl and GKE

Lecture 275 Deploying an Nginx-based Website

Lecture 276 Exploring Storage Classes in GKE

Lecture 277 Exploring API Resources in GKE

Lecture 278 Create Database Credentials for MongoDB

Lecture 279 Deploy the MongoDB StatefulSet - Part 1

Lecture 280 Deploy the MongoDB StatefulSet - Part 2

Lecture 281 Deploy the MongoDB StatefulSet - Part 3

Lecture 282 Deploy the Color API Application

Lecture 283 Create a LoadBalancer Service for External Access

Lecture 284 Color API - Implement v2.1.0-dev: Expose Prometheus Metrics

Lecture 285 Customize Database Deployments

Lecture 286 Deploy Prod Overlay and Customize Dev Color API Image

Lecture 287 Deny All Ingress and Allow Traffic Between Color API and MongoDB

Lecture 288 Allow External Traffic into Color API Pods

Lecture 289 Register Our Website Domain

Lecture 290 Allocate Static IPs for Ingress

Lecture 291 Create Ingress Objects

Lecture 292 Create Managed TLS Certificates

Lecture 293 Test Ingress Traffic from the Web Towards the Color API Pods

Lecture 294 Project Cleanup

Section 28: Congratulations!

Lecture 295 Congratulations + BONUS Lecture!

Software Engineers looking for up-to-date, relevant, and practical knowledge in both Docker and Kubernetes,Developers who wish to expand their knowledge on working effectively with Docker and Kubernetes,DevOps Practitioners who wish to gain deeper knowledge into Docker and Kubernetes