Modern DevOps Practices

This is the code repository for Modern DevOps Practices, published by Packt.

Modern DevOps Practices, published by Packt

What is this book about?

Containers have entirely changed how developers and end-users see applications as a whole. With this book, you'll learn all about containers, their architecture and benefits, and how to implement them within your development lifecycle.

This book covers the following exciting features:

Become well-versed with AWS ECS, Google Cloud Run, and Knative
Discover how to build and manage secure Docker images efficiently
Understand continuous integration with Jenkins on Kubernetes and GitHub actions
Get to grips with using Spinnaker for continuous deployment/delivery
Manage immutable infrastructure on the cloud with Packer, Terraform, and Ansible
Explore the world of GitOps with GitHub actions, Terraform, and Flux CD

If you feel this book is for you, get your copy today!

Instructions and Navigations

All of the code is organized into folders. For example, Chapter02.

The code will look like the following:

...
    spec:
     containers:
       - image: '<your_docker_user>/flask-app-secret:1'
         name: flask-app
         ports:
          - containerPort: 5000
         env:
          - name: SECRET
            valueFrom:
               secretKeyRef:
                 name: flask-app-secret
                 key: SECRET

Following is what you need for this book: If you are a software engineer, system administrator, or operations engineer looking to step into the world of DevOps within public cloud platforms, this book is for you. Existing DevOps engineers will also find this book useful as it covers best practices, tips, and tricks to implement DevOps with a cloud-native mindset. Although no containerization experience is necessary, a basic understanding of the software development life cycle and delivery will help you get the most out of the book.

With the following software and hardware list you can run all code files present in the book (Chapter 1-14).

Software and Hardware List

Chapter	Software required	OS required
5,11,12,13,14	Google Cloud Platform	Windows, Mac OS X, and Linux (Any)
6,7,8	Azure	Windows, Mac OS X, and Linux (Any)
9,10	AWS	Windows, Mac OS X, and Linux (Any)
1-14	A Linux Machine (physical or virtual)	Ubuntu 16.04 Xenial LTS

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. Click here to download it.

Errata

Page 137 (Paragraph 1, line 5): ['sh', '-c', 'cp -L /config/nginx.conf /etc/nginx/nginx.conf && sed -i "s/REDIS_HOST/${REDIS_HOST}/g" /etc/nginx/nginx.conf'] should be['sh', '-c', 'cp -L /config/nginx.conf /etc/nginx/nginx.conf && sed -i "s/REDIS_HOST/${REDIS_HOST}/g" /etc/nginx/nginx.conf && sed -i "s/REDIS_PORT/${REDIS_PORT}/g" /etc/nginx/nginx.conf']"
Page 252 (Paragraph 5, line 4): $ sudo su – ansible should be$ sudo su - ansible
Page 254 (Paragraph 4, line 1): $ sudo su – ansible should be$ sudo su - ansible
Page 311 (Paragraph 1, line 4): $ find ./ -type f -exec sed -i -e 's/\<your_dockerhub_user>/<your actual docker hub user>/g' {} \; should be$ find ./ -type f -exec sed -i -e "s/\<your_dockerhub_user>/<your actual docker hub user>/g" {} \;

Get to Know the Author

Gaurav Agarwal has a decade of experience as a Site Reliability Engineer, Architect, Tech Influencer, Trainer, Mentor, and a Developer. Currently, Gaurav works as Cloud SRE at ThoughtSpot Inc. Prior to that, Gaurav worked as a Cloud Solutions Architect at Capgemini and as a Software Developer at TCS. Gaurav has a B.Tech. in Electronics and Communication Engineering, and he is a Certified Kubernetes Administrator, Certified Terraform Associate and a Google Cloud Certified Professional Cloud Architect. When not working, Gaurav enjoys time with his wonderful wife Deepti and loves to read about History, Human Civilization and Arts.

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