Flocker vs Flux CD: What are the differences?

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; Flux CD: The GitOps operator for Kubernetes. It is a tool that automatically ensures that the state of your Kubernetes cluster matches the configuration you’ve supplied in Git. It uses an operator in the cluster to trigger deployments inside Kubernetes, which means that you don’t need a separate continuous delivery tool.

Flocker and Flux CD can be categorized as "Container" tools.

Flocker is an open source tool with 3.24K GitHub stars and 298 GitHub forks. Here's a link to Flocker's open source repository on GitHub.