Dubois Hugues hugdubois

Setup new Mac with OSX Lion from scratch

These commands are good as of 2011-07-27.

Install Xcode 4

The download/install takes a while so start it first. When it finishes downloading you will still need to run it to complete installation.

iTerm2

Really the nicest choice for a terminal on OSX right now, especially with Lion style full screen support.

This is the process of setting up erlang, rebar3, and cowboy for a Hello World, starting with a clean Debian 8 install.

Update apt and install deps:

root@046edcaea45a:~# apt-get update
root@046edcaea45a:~# apt-get install erlang erlang-dev gcc
root@046edcaea45a:~# wget https://s3.amazonaws.com/rebar3/rebar3
root@046edcaea45a:~# mkdir ~/bin/
root@046edcaea45a:~# mv rebar3 ~/bin/
root@046edcaea45a:~# chmod +x ~/bin/rebar3

OpenBSD VMM howto

Setup

/etc/rc.conf.local

apmd_flags="-A"
dhcpd_flags=vether0
vmd_flags=
ntpd_flags="-s"

	###
	Module dependencies
	###
	require.paths.unshift "#{__dirname}/lib/support/express-csrf/"
	require.paths.unshift "#{__dirname}/lib/support/node_hash/lib/"

	express = require 'express'
	app = module.exports = express.createServer()

	RedisStore = require 'connect-redis'

	-define(atom(Atom),erl_syntax:atom(Atom)).
	-define(var(Var),erl_syntax:variable(Var)).
	-define(underscore,erl_syntax:underscore()).

	-define(apply(Fun,Args),erl_syntax:application(?atom(Fun),Args)).
	-define(apply(Mod,Fun,Args),erl_syntax:application(?atom(Mod),?atom(Fun),Args)).
	-define(apply_(Fun,Args),erl_syntax:application(Fun,Args)).
	-define(clause(Pattern,Guard,Body),erl_syntax:clause(Pattern,Guard,Body)).
	-define(cases(Arg,Clauses),erl_syntax:case_expr(Arg,Clauses)).
	-define(ifs(Clauses),erl_syntax:if_expr(Clauses)).

	(defn week-number
	"Week number according to the ISO-8601 standard, weeks starting on
	Monday. The first week of the year is the week that contains that
	year's first Thursday (='First 4-day week'). The highest week number
	in a year is either 52 or 53."
	[ts]
	(let [year (.getFullYear ts)
	month (.getMonth ts)
	date (.getDate ts)
	day (.getDay ts)

	- Get OpenBSD from http://www.openbsd.org/ ;)
	- Find an Ubuntu cloud image on https://cloud-images.ubuntu.com/
	- Get https://github.com/reyk/meta-data and configure it for cloud-init
	- Run the VM ...

	Script started on Thu Mar 30 01:53:50 2017
	# qemu-img convert ubuntu-16.10-server-cloudimg-amd64.img ubuntu-16.10-server-cloudimg-amd64.raw
	# vmctl start ubuntu -d ubuntu-16.10-server-cloudimg-amd64.raw -n nat -c
	Connected to /dev/ttyp6 (speed 9600)
	Changing serial settings was 0/0 now 3/0

	# Assuming you're a regular user that has doas allowances for vmctl
	mkdir -p ~/vmm
	cd ~/vmm

	# Grab the the one of the virt iso's of Alpine Linux
	curl https://nl.alpinelinux.org/alpine/v3.6/releases/x86_64/alpine-virt-3.6.0-x86_64.iso -o alpine-virt-3.6.0-x86_64.iso

	# Make a new virtual disk image, change the size as needed
	vmctl create alpine-virt.img -s 6G

	-----------------------------
	-- Domain.hs

	type SessionId = Text
	type UserId = Text
	type User = Text

	class (Monad m) => UserRepo m where
	getUserById :: UserId -> m User

	package main

	import (
	"fmt"
	"log"
	"net"
	// "os"
	// "path"

	"os"