Flocker vs Kustomize: What are the differences?

What is Flocker? Run your databases in Docker and make them as portable as the rest of your app. Flocker is a data volume manager and multi-host Docker cluster management tool. With it you can control your data using the same tools you use for your stateless applications. This means that you can run your databases, queues and key-value stores in Docker and move them around as easily as the rest of your app.

What is Kustomize? Kubernetes native configuration management. It introduces a template-free way to customize application configuration that simplifies the use of off-the-shelf applications. Now, built into kubectl as apply -k.

Flocker and Kustomize can be primarily classified as "Container" tools.

Flocker is an open source tool with 3.26K GitHub stars and 297 GitHub forks. Here's a link to Flocker's open source repository on GitHub.