[grosminet] Add JSON

data/grid5000/sites/nancy/clusters/grosminet/grosminet.json

@@ -13,4 +13,4 @@
   ],
   "type": "cluster",
   "uid": "grosminet"
-}
+}
\ No newline at end of file

data/grid5000/sites/nancy/clusters/grosminet/nodes/grosminet-1.json

@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.69.12",
       "kavlan": false,
-      "mac": "25:6b:96:7d:97:d0",
+      "mac": "5c:ed:8c:3c:81:be",
       "management": true,
       "mountable": false,
       "mounted": false,