A Docker image

Ferry pulls an image that exists and runs it. It builds nothing.

Ferry pulls the image from the registry.

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Create a service from an image

Terminal

ferry create hello --image nginx:alpine --port 80

The image comes from a registry. The runtime of the service becomes image.

Tag of the image	Ferry pulls it
No tag, or `:latest`	At each deploy
Each other tag	Only when the image is not on the server

A pinned image is the exact image that one deploy pulled. Restarts, crash replacements and rollbacks run that image.

Public images only

Ferry has no registry authentication.

A git repository

Ferry clones the repository, checks out the branch and builds the code.

An upload

ferry up sends a folder from your machine to the server. Ferry builds it and deploys it.