k8s role grain

_grains/role_k8s.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+import os.path
+
+def _role_k8s():
+    h = "unknown"
+    if h == "unknown" and os.path.isfile("/usr/bin/kubeadm"):
+        h = "k8s"
+    return h
+
+def main():
+    grains = {}
+    grains['role'] = _role_k8s()
+    return grains