This will deploy cri-o from source on Ubuntu Xenial. There is a ppa that has packages for cri-o, but sometimes it does not have the latest cri-o available. (Such as right now, at this particiular point in time.) But it may have the latest in the future, so it might be best to check there first before using this role.

In order to build and use cri-o with Kubernetes a few things are required, and this role does most of them:

• Installs go
• Installs runc - This can be disabled by setting crio_install_runc: false in defaults.
• Sets up /etc/default/kubelet to use cri-o - This can be disabled be setting crio_manage_kubelet_extra_args: false in defaults
• Installs cri-o from source - make.tools, make, make.install, make.config
• Installs a few configuration files to enable cri-o

See the various software versions in the defaults/main.yml file.