luci/applications/luci-app-apinger/root/usr/share/rpcd/acl.d/luci-app-apinger.json

{
	"luci-app-apinger" : {
		"description" : "Grant access to LuCI app Apinger",
		"read" : {
			"ubus" : {
				"apinger" : [ "*" ],
				"file": [ "stat" ],
				"service": [ "list" ]
			},
			"uci": [ "apinger" ]
		},
		"write" : {
			"ubus" : {
				"apinger" : [ "*" ]
			},
			"uci": [ "apinger" ]
		}
	}
}