[library] slave nodes cannot access internet right after provisioning stage

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1) deploy master node
2) create cluster and configure it
3) do provisioning separately
4) reboot master node (I am not sure if this is required step)
5) try to ping external world from slave nodes

Expected result:

default route is present through master node. internet is pingable

Actual result:

internet is inaccessible as default route is missing.

this can lead to problems with time sync and other external-connectivity requiring services