xdays

Auto-deploying built products to gh-pages with GitHub Actions

This is a set up for projects which want to check in only their source files, but have their gh-pages branch automatically updated with some compiled output every time they push.

A file below this one contains the steps for doing this with Travis CI. However, these days I recommend GitHub Actions, for the following reasons:

It is much easier and requires less steps, because you are already authenticated with GitHub, so you don't need to share secret keys across services like you do when coordinate Travis CI and GitHub.
It is free, with no quotas.
Anecdotally, builds are much faster with GitHub Actions than with Travis CI, especially in terms of time spent waiting for a builder.

##ss-redir 的 iptables 配置(透明代理)

透明代理指对客户端透明，客户端不需要进行任何设置就使用了网管设置的代理规则

创建 /etc/ss-redir.json 本地监听 7777 运行ss-redir -v -c /etc/ss-redir.json

iptables -t nat -N SHADOWSOCKS
# 在 nat 表中创建新链
iptables -t nat -A SHADOWSOCKS -p tcp --dport 23596 -j RETURN
# 23596 是 ss 代理服务器的端口，即远程 shadowsocks 服务器提供服务的端口，如果你有多个 ip 可用,但端口一致，就设置这个

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

	#!/bin/bash
	#
	# The MIT License (MIT)

	# Copyright (c) 2015 Justin Shattuck <shat@f5.com>, F5 Networks, Inc.

	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

	"""" Tested in Python 3.4 """

	import urllib.request
	import http.client

	http.client.HTTPConnection.debuglevel = 1

	response = urllib.request.urlopen('https://github.com/eweitz')

	[Unit]
	Description=consul agent
	Requires=network-online.target
	After=network-online.target

	[Service]
	EnvironmentFile=-/etc/sysconfig/consul
	Environment=GOMAXPROCS=2
	Restart=on-failure
	ExecStart=/usr/local/sbin/consul agent $OPTIONS -config-dir=/etc/consul.d

	提速:
	http://bj.wokuan.cn/web/improvespeed.php?ContractNo=宽带帐号&up=09&old=07&round=29

	恢复: http://bj.wokuan.cn/web/lowerspeed.php?ContractNo=宽带帐号&round=85

	上面up old表示提升和本来的两种宽带类型
	09是100M
	07是10M
	round是随机数

	# post_loc.txt contains the json you want to post
	# -p means to POST it
	# -H adds an Auth header (could be Basic or Token)
	# -T sets the Content-Type
	# -c is concurrent clients
	# -n is the number of requests to run in the test

	ab -p post_loc.txt -T application/json -H 'Authorization: Token abcd1234' -c 10 -n 2000 http://example.com/api/v1/locations/

	Ref: http://stackoverflow.com/questions/5108876/kill-a-postgresql-session-connection

	Postgres (rightfully) stops you from renaming a database while it has connections open connections. To test an exception handler which attempts to handle lost database connection, I was able to do the following:

	1. \c (database that you are not trying to rename)
	\c template1

	2. select pg_terminate_backend(pid) from pg_stat_activity where datname ~ 'db_name_you_are_trying_to_rename';
	3. alter database db_name_you_are_trying_to_rename rename to new_name;