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Microservices Deployment on AKS with GitOps

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Chetan Thapliyal
Azure AKS ArgoCD Azure DevOps Azure Container Registry Docker
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ChetanThapliyal/microservices-ecommerce-cicd

Creating a comprehensive CI/CD pipeline using a microservices architecture on GKE. The architecture comprises 11 distinct microservices, each representing a specific functional component of an e-commerce application.

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Blog Post

Introduction
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Deploying multiple microservices to Azure Kubernetes Service (AKS) using Azure DevOps for CI/CD and ArgoCD for GitOps-based continuous deployment. The deployment process leverages Azure DevOps for building and deploying the application, and ArgoCD for managing Kubernetes resources in a GitOps manner.

Challenges
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  • Complexity in Deployment: Ensuring seamless deployment and management of multiple micro-services across different environments.
  • Maintaining Consistency: Keeping the deployed applications in sync with the desired state defined in the Git repository.
  • Scalability and Reliability: Managing resource allocation and scaling the application to handle varying loads without downtime.
  • Efficient CI/CD Pipeline: Automating the build, test, and deployment stages to streamline development workflows and reduce manual interventions.

Solution
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The architecture consists of the following components:

  • Microservice Application: A sample microservice application. (example-voting-app)
  • Azure Kubernetes Service (AKS): Managed Kubernetes cluster in Azure.
  • Azure DevOps: CI/CD platform for building and deploying the application.
  • ArgoCD: GitOps continuous delivery tool for Kubernetes.

architectureDiagram

  • Automated Deployment with ArgoCD: Implemented ArgoCD for continuous deployment, ensuring that the applications are always up-to-date and consistent with the Git repository. This automated approach reduced the complexity of managing micro-services and improved deployment reliability.
  • Container Orchestration with AKS: Leveraged Azure Kubernetes Service (AKS) to deploy and manage the micro-services. AKS provided a robust and scalable environment for running the containers, ensuring high availability and efficient resource utilization.
  • CI/CD Pipeline with Azure DevOps: Developed CI/CD pipelines using Azure DevOps to automate the entire development lifecycle, from code commit to deployment. This integration enabled faster development cycles, continuous testing, and streamlined deployment processes.

References and Links #

  • ArgoCD Documentation: ArgoCD
  • Azure Kubernetes Service Documentation: AKS
  • Azure DevOps Documentation: Azure DevOps