Book Image

Implementing Azure DevOps Solutions

By : Henry Been, Maik van der Gaag
Book Image

Implementing Azure DevOps Solutions

By: Henry Been, Maik van der Gaag

Overview of this book

Implementing Azure DevOps Solutions helps DevOps engineers and administrators to leverage Azure DevOps Services to master practices such as continuous integration and continuous delivery (CI/CD), containerization, and zero downtime deployments. This book starts with the basics of continuous integration, continuous delivery, and automated deployments. You will then learn how to apply configuration management and Infrastructure as Code (IaC) along with managing databases in DevOps scenarios. Next, you will delve into fitting security and compliance with DevOps. As you advance, you will explore how to instrument applications, and gather metrics to understand application usage and user behavior. The latter part of this book will help you implement a container build strategy and manage Azure Kubernetes Services. Lastly, you will understand how to create your own Azure DevOps organization, along with covering quick tips and tricks to confidently apply effective DevOps practices. By the end of this book, you’ll have gained the knowledge you need to ensure seamless application deployments and business continuity.
Table of Contents (21 chapters)
1
Section 1: Getting to Continuous Delivery
6
Section 2: Expanding your DevOps Pipeline
12
Section 3: Closing the Loop
15
Section 4: Advanced Topics

Scaling containers and Kubernetes

As the demand for your application may grow, you will need to scale the application. Scaling the application can be done in multiple ways and different components can be scaled:

The preceding diagram shows you the different ways to scale your application or cluster, which we will discuss over the upcoming subsections.

Scaling pods manually

Pods can easily be scaled by updating the number of replicas. Try getting your pods by using the kubectl get pods command and increase the number of replicas by using the following command:

kubectl scale --replicas=[number of pods] deployment/[deploymentname]

With this command, the pods are scaled up or down depending on the number of replicas. The up or...