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One of the places is when it checks for docker_version in ubuntu_bionic.yml. The existing version is 18.06.0 expected is 18.06.1. Tried to change this by supplying the correct/requested version by Kubespray. Regardless it fails unless we change the hardcoded version in the https://github.com/kubernetes-sigs/kubespray/blob/release-2.8/roles/container-engine/docker/vars/ubuntu-bionic.yml#L6
Another case where we encountered issues is when ansible runs a name: ensure docker packages are installed
update_cache: "{{ omit if ansible_distribution == 'Fedora' else False }}"
Right now we have the K8s cluster setup in offline mode on the client-server machine replicated in the lab. However, we see that support for the offline version is poor for v2.8.2 currently used by KUD. Setting up the galaxy requirement has been a blocker. We have developed an approach to it to get the add-ons going.