thuongdinh-agilityio

The Case For Go

• Iron.io: How We Went from 30 Servers to 2 with Go
• Go at Google: Language Design in the Service of Software Engineering
• Behind the Scenes: Big Data at Torbit
• pool.ntp.org DNS server in Go
• Juju at Canonical
• Go at bitly
• NSQ: realtime distributed message processing at scale

thuongdinh-agilityio

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:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

thuongdinh-agilityio

# This shows the setup for two services, an accounts service which connects to a database and a pagerduty service which connects to the pagerduty api
# Directory structure
accounts/
  |_ Dockerfile
pagerduty/
  |_ Dockerfile
nginx/
  |_ conf/
    |_ sites.conf
  |_ .htpasswd

thuongdinh-agilityio

sudo -u postgres psql -tAc "CREATE DATABASE jerry;"
sudo -u postgres psql -tAc "GRANT ALL PRIVILEGES ON DATABASE jerry to tom;"

thuongdinh-agilityio

sudo apt-get install python-pip -y
sudo pip install -U docker-compose==1.4.0

thuongdinh-agilityio

o := orm.NewOrm()
//Database alias
name := "default"
// Drop table and re-create.
force := true
// Print log.
verbose := true
err := orm.RunSyncdb(name, force, verbose)  //this is to create/drops the tables
if err != nil {
  beego.Info(err)

thuongdinh-agilityio

FROM node:4

# Add code & set working dir
ADD . /app
WORKDIR /app

# Install npm package
RUN npm install

thuongdinh-agilityio

# install brikis98/docker-osx-dev
curl -o /usr/local/bin/docker-osx-dev https://raw.githubusercontent.com/brikis98/docker-osx-dev/master/src/docker-osx-dev
chmod +x /usr/local/bin/docker-osx-dev
docker-osx-dev install

# go to working folder where contains docker-compose.xml
docker-osx-dev

# install virtualenv
sudo pip install virtualenv

thuongdinh-agilityio

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.provider "virtualbox" do |v|
    v.memory = 2048
    v.cpus = 1

thuongdinh-agilityio

docker-machine \
    --tls-ca-cert $LOCAL_CONFIG_PATH/ca.pem \
    --tls-ca-key $LOCAL_CONFIG_PATH/ca-key.pem \
    --tls-client-cert $LOCAL_CONFIG_PATH/cert.pem \
    --tls-client-key $LOCAL_CONFIG_PATH/key.pem \
    create --driver generic --generic-ssh-user root --generic-ip-address xxx.xxx.xxx.xxx test-deployment