branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

actionshrimp

; Pick up service x events, sent by error detection in service 'y' stream
(streams
  (where (service "x")
         ;Index API service events for 60s we can watch for expiries info
         (with :ttl 60 (update-index (index)))

         (changed-state {:init "ok"} 
                        (service-x-state-change-email "[email protected]"))

         (expired (with :state "ok" reinject))))

dergachev

TLDR: I now add the following snippet to all my Dockerfiles:

# If host is running squid-deb-proxy on port 8000, populate /etc/apt/apt.conf.d/30proxy
# By default, squid-deb-proxy 403s unknown sources, so apt shouldn't proxy ppa.launchpad.net
RUN route -n | awk '/^0.0.0.0/ {print $2}' > /tmp/host_ip.txt
RUN echo "HEAD /" | nc `cat /tmp/host_ip.txt` 8000 | grep squid-deb-proxy \
  && (echo "Acquire::http::Proxy \"http://$(cat /tmp/host_ip.txt):8000\";" > /etc/apt/apt.conf.d/30proxy) \
  && (echo "Acquire::http::Proxy::ppa.launchpad.net DIRECT;" >> /etc/apt/apt.conf.d/30proxy) \
  || echo "No squid-deb-proxy detected on docker host"

jjongsma

#!/usr/bin/python
#
# Usage: packer-config my-template.yaml | packer build -
#
# Constructs a Packer JSON configuration file from the specified YAML
# template file and writes it to STDOUT.
# 
# The YAML template format adds some flexibility and readability by
# adding comments and an !include directive, allowing for the
# following template syntax:

danrigsby

packer build packer.json 2>&1 | sudo tee output.txt
tail -2 output.txt | head -2 | awk 'match($0, /ami-.*/) { print substr($0, RSTART, RLENGTH) }' > sudo ami.txt

shepmaster

#!/bin/bash

set -eu
shopt -s nullglob

if [[ -n ${RUN:-} ]]; then
    dry=
else
    dry=echo
fi

jmoiron

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func init() {

ktheory

# /tmp/test = EBS-SSD
# /mnt/test = instance-store

root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test
256+0 records in
256+0 records out
268435456 bytes (268 MB) copied, 3.26957 s, 82.1 MB/s
root@ip-10-0-2-6:~# dd bs=1M count=256 if=/dev/zero of=/tmp/test
256+0 records in
256+0 records out

kapilt

svc             host                 fault upgrade  size         power  ip        
42fzbcx2ev      juju0nezlcysed3o...  0     0        Small        Started 10.0.0.20 
42fzbcx2ev      juju9bd6mjna00h0...  0     4        Small        Started 10.0.0.60 
42fzbcx2ev      juju9ygqoy9qjkdq...  1     1        Small        Started 10.0.0.28 
42fzbcx2ev      jujufrh460g4vyra...  1     0        Small        Started 10.0.0.68 
42fzbcx2ev      jujukhrocaqpux90...  1     3        Small        Started 10.0.0.52 
42fzbcx2ev      jujuzbbtbkk8tdo6...  0     2        Small        Started 10.0.0.44 
47rntclyak      jujugk2ygbnatkhc...  0     0        Small        Started 10.0.0.4  
51etwr329x      juju6329s6bqqao2...  0     0        Small        Started 10.0.0.12 
51etwr329x      jujuuxa3sfxyp12f...  1     1        Small        Started 10.0.0.36 

earnubs

Paraphrased/edited/slightly updated form of: http://mike.teczno.com/notes/disposable-virtualbox-lxc-environments.html

VM Setup

Download an Ubuntu Server ISO (http://www.ubuntu.com/download/server)

Create a new VMWare virtual machine, select boot from the ISO with 2 NICs configured as "Share with My Mac" & "Private to my Mac" respectively. During the creation of the Ubuntu VM there will be a page to select installed software, select "OpenSSH server".

VM Networking