This book will guide you through the methodology of software development and delivery with Docker containers and Kubernetes using macOS and public cloud services (AWS, GCP, and Azure). You will need to install minikube, AWS CLI, Cloud SDK, and the Azure CLI to run the code samples in this book.

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/DevOps-with-Kubernetes-Second-Edition. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: http://www.packtpub.com/sites/default/files/downloads/9781789533996_ColorImages.pdf.

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "In light of this, cgroups is utilized here to limit resource usage."

A block of code is set as follows:

ENV key value
 ENV key1=value1 key2=value2 ...

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

metadata:
  name: nginx-external
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"

Any command-line input or output is written as follows:

$ docker run -p 80:5000 busybox /bin/sh -c \
  "while :; do echo -e 'HTTP/1.1 200 OK\n\ngood day'|nc -lp 5000; done"
$ curl localhost
good day

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "After clicking Create, the console will bring us to the following view for us to explore."