CLI command to import/export sky state

[sethkimmel3]

We're having an issue around API server creation and management. Currently, we need to create and manage API servers from a central location. This gets challenging when other team members need to make modifications, or if we lost access to the device managing the servers. Its of course possible to launch API servers from an API server, but then you run into a circular dependency.

I propose adding a CLI command that allows you to export sky state to a file that can be version controlled. Similarly, there would be a CLI command to import sky state from a file. This way I could make modifications or create new API servers locally, export the state to Github or elsewhere, and my teammates could get access to the clusters by fetching the latest file and importing the state locally.

There may be way better options here - just an idea!

[romilbhardwaj]

Thanks for raising this @sethkimmel3.

To add more context for readers: this problem arises when using the alternative VM based deployment of the remote API server. Managing API server deployments should be easier with our recommended helm-based deployment, in which case users don't need to maintain any state about the API server's deployment - it is all managed by the underlying Kubernetes cluster.