Chen-Han (Stanley) Hsiao chenhan1218

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I am chenhan1218 on github.
I am chenhan1218 (https://keybase.io/chenhan1218) on keybase.
I have a public key ASBy0BGC2ENHA6kPE6jV--miOu1xNSEvmrJ0ZY6btiC4yQo

To claim this, I am signing this object:

Memo Date: 2018-07-18 MAAS version: 2.3

Curtin’s assumption is that a fairly rich Linux (Ubuntu) environment is booted.

But if your image is not Linux (Ubuntu) based, you could customize the image via:

Understand curtin stages
http://curtin.readthedocs.io/en/latest/topics/config.html
Stages:

curtin install with launch

Curtin has a test suite named vmtest. It has loads of configs for installation that put curtin through a battery. As of this writing it runs 192 installations on amd64 covering all supported ubuntu releases. It runs nightly under jenkins. See example results in the curtin-vmtest-devel-amd64 job.

If you're interested just a general use of curtin without starting a VM, see another article 'Curtin Development on uvt-kvm'.

device-mapper on lxc/lxd

LXC control device mapper

lxc.cgroup.devices.allow = c 10:236 rwm
lxc.cgroup.devices.allow = b 252:* rwm

https://wiki.deimos.fr/LXC_:_Install_and_configure_the_Linux_Containers#LXC_control_device_mapper

LXC config on LXD

WebRTC on LAN

剛嘗試了怎麼樣在區域網路中使用 WebRTC 來進行 VOIP，意外發現其實滿簡單的。分享一下我的步驟

P.S 這是提供給外部網路不通的環境下，如果外部網路通暢，那麼可以直接用現有服務，如 https://talky.io/ 即可

架起 WebRTC Signal Server

git clone https://github.com/andyet/signalmaster

	from datetime import datetime, timedelta

	import pendulum

	from airflow import DAG
	from airflow.operators.python_operator import PythonOperator


	default_args = {"owner": "airflow"}

	# Failed trial of airflow subdag with timezone aware
	from datetime import datetime, timedelta

	import pendulum

	from airflow import DAG
	from airflow.operators.python_operator import PythonOperator
	from airflow.operators.subdag_operator import SubDagOperator

	#!/usr/bin/env python3
	#
	# Copyright 2015 Canonical Ltd.
	#
	# Authors:
	# Daniel Manrique <[email protected]>
	#
	# develop-in-lxc is free software: you can redistribute it and/or modify
	# it under the terms of the GNU General Public License version 3, as
	# published by the Free Software Foundation.

	function load_efi_video {
	set gfxmode=auto
	insmod efi_gop
	insmod efi_uga
	insmod gfxterm
	terminal_output gfxterm
	}

	function load_video {
	set gfxmode=auto

	#!/usr/bin/env python
	# -- coding: utf-8 --

	import mechanize
	from colorama import init
	from colorama import Fore, Back, Style

	init()

	def main():