Getting Started With Kubernetes: Advanced Deployment

The article is the third in a series focused on using infrastructure as code to deploy applications with Kubernetes, transitioning from simple to complex deployments with multiple containers and Pods. It reviews three application deployment scenarios, beginning with a 12-factor microservices application featuring frontend and backend services and a messaging queue. The second scenario simplifies the Kubernetes guestbook by combining Service and Deployment into a single component, demonstrating an alternative pattern for stack organization. The third scenario involves deploying a popular web application using Helm, Kubernetes' package manager. The article discusses the Sock Shop microservices reference application, highlighting its polyglot nature with microservices in Java, Go, and Node, and how they communicate via REST calls. The use of infrastructure as code is explored through components that abstract Kubernetes resources into higher-level objects, illustrated by the Guestbook application. Additionally, Helm charts are presented as a straightforward method for deploying standard applications. The article emphasizes that infrastructure as code can simplify complex deployments by abstracting resources, applying software development practices, and facilitating robust deployments. The next installment will address stateful services requiring persistent storage.

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