hack/tls-setup/config/ca-config.json - external/github.com/coreos/etcd - Git at Google

 {
   "signing": {
     "default": {
         "usages": [
           "signing",
           "key encipherment",
           "server auth",
           "client auth"
         ],
         "expiry": "876000h"
     }
   }
 }
	{
	"signing": {
	"default": {
	"usages": [
	"signing",
	"key encipherment",
	"server auth",
	"client auth"
	],
	"expiry": "876000h"
	}
	}
	}