You can clone the kubernetes-worker layer with git and build locally if you have the charm package/snap installed.
# Instal the snap sudo snap install charm --channel=edge # Set the build environment export JUJU_REPOSITORY=$HOME # Clone the layer and build it to our JUJU_REPOSITORY git clone https://github.com/juju-solutions/kubernetes cd kubernetes/cluster/juju/layers/kubernetes-worker charm build -r
TBD