https://github.com/bsycorp/kind
https://github.com/ubuntu/microk8s
https://github.com/kinvolk/kube-spawn
https://github.com/kubernetes/minikube
https://github.com/danderson/virtuakube
https://github.com/kubernetes-sigs/kubeadm-dind-cluster

pattern:
{ term }
term:
'*' matches any sequence of non-Separator characters
'?' matches any single non-Separator character
'[' [ '^' ] { character-range } ']'
character class (must be non-empty)
c matches character c (c != '*', '?', '\\', '[')
'\\' c matches character c
 
character-range:
c matches character c (c != '\\', '-', ']')
'\\' c matches character c
lo '-' hi matches character c for lo <= c <= hi
 
additions:
'**' matches any number of directories (including zero)
'!' lines starting with ! (exclamation mark) can be used to make exceptions to exclusions
'#' lines starting with this character are ignored: use it for comments