mrhillsman

package main

import (
  "fmt"
  "reflect"
)

// Name of the struct tag used in examples
const tagName = "validate"

mrhillsman

Character code (character)	Duration (ms)	Alias to	Pronounced as
27 (�)	656	None	Escape
33 (!)	1333	None	Exclamation mark
35 (#)	409	None	Hash
36 ($)	425	None	Dollar
37 (%)	631	None	Percent
38 (&)	329	None	And
43 (+)	396	None	Plus
45 (-)	706	None	Dash

mrhillsman

Custom HTTP Routing in Go

Basic Routing

Responding to requests via simple route matching is built in to Go's net/http standard library package. Just register the path prefixes and callbacks you want invoked and then call the ListenAndServe to have the default request handler invoked on each request. For example:

package main

import (

mrhillsman

#!/usr/bin/env python
# Reflects the requests from HTTP methods GET, POST, PUT, and DELETE
# Written by Nathan Hamiel (2010)

from http.server import HTTPServer, BaseHTTPRequestHandler
from optparse import OptionParser

class RequestHandler(BaseHTTPRequestHandler):
    
    def do_GET(self):

mrhillsman

#!/bin/bash
# Copyright 2016, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software

mrhillsman

# Add this snippet to the top of your playbook. 
# It will install python2 if missing (but checks first so no expensive repeated apt updates)
# gwillem@gmail.com

- hosts: all
  gather_facts: False
  
  tasks:
  - name: install python 2
    raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)

mrhillsman

How to create a LXD Container with your ssh key in it (and with ssh server in the container)

Create a brand new ed25519 key pair

ssh-keygen -o -a 100 -t ed25519

Get the pub key and put the result in your lxd default profile

cat ~/.ssh/ed25519.pub
lxc profile edit default

mrhillsman

#!/bin/bash

INPUTFILE=${INPUTFILE:-'/etc/resolv.conf'}
DEBUG=${DEBUG:-false}

FALLBACK_NAMESERVERS_IPV4='8.8.8.8 8.8.4.4'
FALLBACK_NAMESERVERS_IPV6='2001:4860:4860::8888 2001:4860:4860::8844'
HOST_ADDRESSES_IPV4=$(ip a | awk '/inet / {print $2}' | grep -v '^127\.' | cut -d/ -f1 | paste -d' ' -s)
HOST_ADDRESSES_IPV6=$(ip a | awk '/inet6 / {print $2}' | grep -v '^::' | cut -d/ -f1 | paste -d' ' -s)
HOST_NAMESERVERS_NOLOCAL_IPV4=$(awk '/^nameserver/ {print $2}' ${INPUTFILE} | grep -v '^127\.\|^::' | grep '\.' | paste -d' ' -s)

mrhillsman

#!/usr/bin/env bash
#
# Install HAProxy 
# Script works on Ubuntu 12.04 and 14.04 only


set -e
set -u
set -o pipefail

mrhillsman

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt