Add support for creating empty image config #1973
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According to the current OCI spec:
It's currently possible to set the config MediaType:
But it's not currently possible (as far as I can tell), to create the rest of the descriptor:
This PR adds a new
mutate
function to achieve this:An alternative, and maybe more general approach, would be to expose a
mutate
function to set the value ofManifest.Config.Data
directly, and calculate the size/digest duringcompute
.