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* Refactor upgrade codepaths step 1Michael Gugino2017-12-121-22/+0
| | | | | | | | | | | | | | | | This commit refactors some upgrade code paths. Touched areas are: 1) Reduces usage of 'oo_all_hosts' in various places, especially when running upgrade_control_plane. 2) Reuses common code across the various upgrade* playbooks. 3) Moves docker upgrade checks into container_runtime_role. 4) Combines smaller playbooks and plays to reduce file sprawl.
* check if the storage backend is set to etcd3 before upgrading to 3.7Jan Chaloupka2017-09-251-0/+22