* Move front-proxy-client certs back to kube mount
We want the same CA for all k8s certs
* Refactor vault to use a third party module
The module adds idempotency and reduces some of the repetitive
logic in the vault role
Requires ansible-modules-hashivault on ansible node and hvac
on the vault hosts themselves
Add upgrade test scenario
Remove bootstrap-os tags from tasks
* fix upgrade issues
* improve unseal logic
* specify ca and fix etcd check
* Fix initialization check
bump machine size
* Fix broken CI jobs
Adjust image and image_family scenarios for debian.
Checkout CI file for upgrades
* add debugging to file download
* Fix download for alternate playbooks
* Update ansible ssh args to force ssh user
* Update sync_container.yml
Matthew Mosesohn
Maxim Krasilnikov
Antoine Legrand