Rightsizing Kubernetes applications

Applications are increasingly delivered for cloud deployment as set of composite artefacts such as containers. The composition descriptions vary widely: There are Docker compose files, Vamp blueprints, Kubernetes descriptors, OpenShift service instance templates, and more. Ideally, taking these compositions and deploying them somewhere would always work. In practice, it is more complex than that. Commercial production environments are often constrained depending on the chosen pricing plan. Many applications would still run but due to over-estimating deployment information do not “fit” into the target environment. In this blog post, we look at how to “right-size” an application deployed into such a constrained Kubernetes instance, and furthermore propose a tool to automate this process.

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