Book Image

Effortless Cloud-Native App Development Using Skaffold

By : Ashish Choudhary
Book Image

Effortless Cloud-Native App Development Using Skaffold

By: Ashish Choudhary

Overview of this book

Kubernetes has become the de facto standard for container orchestration, drastically improving how we deploy and manage cloud-native apps. Although it has simplified the lives of support professionals, we cannot say the same for developers who need to be equipped with better tools to increase productivity. An automated workflow that solves a wide variety of problems that every developer faces can make all the difference! Enter Skaffold – a command-line tool that automates the build, push, and deploy steps for Kubernetes applications. This book is divided into three parts, starting with common challenges encountered by developers in building apps with Kubernetes. The second part covers Skaffold features, its architecture, supported container image builders, and more. In the last part, you'll focus on practical implementation, learning how to deploy Spring Boot apps to cloud platforms such as Google Cloud Platform (GCP) using Skaffold. You'll also create CI/CD pipelines for your cloud-native apps with Skaffold. Although the examples covered in this book are written in Java and Spring Boot, the techniques can be applied to apps built using other technologies too. By the end of this Skaffold book, you'll develop skills that will help accelerate your inner development loop and be able to build and deploy your apps to the Kubernetes cluster with Skaffold.
Table of Contents (15 chapters)
1
Section 1: The Kubernetes Nightmare – Skaffold to the Rescue
5
Section 2: Getting Started with Skaffold
9
Section 3: Building and Deploying Cloud-Native Spring Boot Applications with Skaffold

Understanding the Skaffold workflow

Typically, Skaffold works in two modes, namely, continuous development or an end-to-end pipeline through commands such as skaffold dev and skaffold run. For example, when you run the skaffold dev command, the following steps are carried out by Skaffold:

  1. Receive and watch your source code for changes.
  2. Copy the changed files straight to build if the user marks them as eligible for copying.
  3. Build your artifacts from the source code.
  4. Test your built artifacts using container-structure-tests or custom scripts.
  5. Tag your artifacts.
  6. Push your artifacts (only if the Kubernetes context is set to a remote cluster).
  7. Update the Kubernetes manifests with the correct tags.
  8. Deploy your artifacts.
  9. Monitor the deployed artifacts with built-in health checks.
  10. Stream logs from the running pods.
  11. Clean up any deployed artifacts on exit by pressing Ctrl + C.

    In the case of the skaffold run command, the workflow is relatively...