1#!/usr/libexec/flua 2--[[ 3/*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2020, Ryan Moeller <freqlabs@FreeBSD.org> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31]]-- 32 33jail = require("jail") 34ucl = require("ucl") 35 36name = "demo" 37 38-- Create a persistent jail named "demo" with all other parameters default. 39jid, err = jail.setparams(name, {persist = "true"}, jail.CREATE) 40if not jid then 41 error(err) 42end 43 44-- Get a list of all known jail parameter names. 45allparams = jail.allparams() 46 47-- Get all the parameters of the jail we created. 48jid, res = jail.getparams(name, allparams) 49if not jid then 50 error(res) 51end 52 53-- Display the jail's parameters as a pretty-printed JSON object. 54print(ucl.to_json(res)) 55 56-- Update the "persist" parameter to "false" to remove the jail. 57jid, err = jail.setparams(name, {persist = "false"}, jail.UPDATE) 58if not jid then 59 error(err) 60end 61