Implementing Infrastructure as Code for Microservice Deployment on Kubernetes

The article builds on a previous post about infrastructure‑as‑code with Kubernetes and focuses on the implementation details of the microservice deployment portion, especially the automation of deployment and CI/CD processes.

Microservice deployment is driven by a provision-services.sh script that invokes a k8s.yaml manifest stored in each service’s repository; the manifest can be customized directly or via Kustomize to simplify maintenance.

The CI/CD pipeline for each service is defined in a Jenkinsfile stored in the service’s code base. The pipeline follows the typical stages of checkout, build, container image creation, and deployment, requiring Jenkins agents that provide .NET Core SDK, Docker, and kubelet support, which are provisioned on demand through the Jenkins Kubernetes plugin.

When the pipeline reaches the build steps, the plugin automatically starts Kubernetes slave nodes with the appropriate images and mounts, as described in the earlier “CICD infrastructure as code” article.

Because each service maintains its own Jenkinsfile and Dockerfile, teams can freely customize the build and deployment process, even switching programming languages or container configurations without affecting other services.

The article concludes that this approach gives microservice teams near‑complete control over their CI/CD workflows, while also highlighting that the workshop scenario omits advanced topics such as database migrations, traffic shifting, security, and broader platform considerations, which would need additional work for production use.

Overall, treating infrastructure configuration as executable code improves reliability, flexibility, and cross‑team collaboration, fostering stronger DevOps capabilities.