* Examples which install CoreOS to disk should reference
a CoreOS install image from bootcfg assets to speed up
installs and improve the offline use-case
* Update scripts/get-coreos to download and verify the
CoreOS install image
* Update CoreOS version to get rkt 1.2.1->1.6.0 improvements
for running the kubelet wrapper in Kubernetes clusters
* Update CoreOS version for other clusters so users only need
to download one cached version of assets to run examples
* Match machines by MAC address in examples
* Re-use the MAC address to assign static networkd configs
where needed.
* UUID is useful to uniquely identify a machine (unlike MAC)
but many users had difficulty finding the network device name
to use in static networkd configs. Selecting by MAC reduces
the potential for user error here.
* bootkube clusters work with bootkube 5c1efe3ac61e270
* Copy bootkube generated assets and executable to any master
* Change hosts to use kubelet client certificate instead of token
* Update bootkube deployment documentation
* Setting k8s_version via metadata gives the impression
it can be bumped and the cluster will operate with the
desired version. In reality, the k8s profiles change in
minor but important ways which we validate between k8s
releases. It should be part of the k8s profile Ignition.
* Split config.yaml files into JSON groups files
* Update examples to use folders of mountable groups files
* Stop reading groups from a -config config.yaml file
* Add RichGroup JSON <-> Protobuf Serialize Group
* FileStore should manage resources found in type named directories
since this is similar to a traditional table-DB layout and to how
an EtcdStore would work
