How to use local Docker registry in Kamal | Deploy Linux Blog

A local Docker registry is a repository that allows you to store and manage your Docker images locally on your computer, rather than relying on a remote service like DockerHub. It's a great and simple alternative to self-hosting your own registry since you cannot skip a registry entirely when deploying with Kamal. Advantages They are 4 good benefits of a local registry: Costs: You save on container images hosting. No more charges for DockerHub. Speed: Pulling and pushing images to a local Docker registry can be quite a bit faster than accessing your current provider registry. Security: A local registry minimizes the risk of exposing your images to the public internet. You can mitigate risks of leaking your environment variables and source code. Simplicity: You reduce the amount of initial setup for self-hosting with Kamal. You save on one secret. Disadvantages The obvious disadvantage of a local registry is that it's, well, local to your Kamal installation. That means if you are using a local registry from on your laptop, you cannot easily share it with your coworkers.