CI/CD pipeline to deploy applications on Google Kubernetes Engine (GKE) using Cloud Build and Cloud Deploy.

Introduction

In the modern software development landscape, Continuous Integration/Continuous Deployment (CI/CD) pipelines play a pivotal role in automating the process of building, testing, and deploying applications.

In this blog post, we’ll deep dive into the implementation of a robust CI/CD pipeline to deploy applications on Google Kubernetes Engine (GKE) using Google Cloud Build and Cloud Deploy services.

Requirements:

To achieve our goal, we have the following requirements:
- Deployment of two simple Flask applications (app1 & app2) on the GKE clusters.
- Automation of the entire deployment process, triggered by a developer’s code push.
- Dev-cluster deployment precedes production deployment, allowing for review before promoting to the prod-cluster.

Architecture