About group vars

Executing the make command will copy the files in the template folder to create all.yml and kubernetes.yml

about `all.yml` file

include configuration

proxy_env
timezone
modprobe
ipvs
sysctl
limits

about `kubernetes.yml` file

include configuration

docker, containerd, crio
etcd
networking(K8S)
apiServer
controllerManager
scheduler
kubelet
proxy