Epigene

Deploy a Rails app to Dokku droplet

Set up a droplet

Much in common with http://www.snip2code.com/Snippet/159602/Using-Dokku-to-deploy-a-Rails-Applicatio

Initialize droplet via https://www.digitalocean.com/community/tutorials/how-to-use-the-dokku-one-click-digitalocean-image-to-run-a-ruby-on-rails-app

Grab the latest dokku

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

dbankier

// modified from this: https://github.com/emiloberg/nativescript-emulator-reload

// all sources

var babelSrc = [ 'src/**/*.js', '!src/tns_modules', '!src/tns_modules/**', '!src/node_modules', '!src/node_modules/**' ];
var jadeSrc = [ 'src/**/*.jade' ];
var sassSrc = [ 'src/**/*.scss' ];
var resources = [ 'src/{App_Resources,tns_modules,node_modules}/**', 'src/package.json'];

// Which emulator to run?

romanz

Bitcoin Full Node on AWS Free Tier

Provisioning

• Launch one T2 micro instance, using Ubuntu 14.04 LTS AMI.
• Open SSH and Bitcoin Protocol TCP ports: 22, 8333.
• Attach 40GB EBS (General-Purpose SSD) volume for blockchain storage to /dev/sdf.

The pricing should be ~3$ for the first year (assuming 30GB upload per month). See here for more details.

charliepark

  def convert_to_brightness_value(background_hex_color)
    (background_hex_color.scan(/../).map {|color| color.hex}).sum
  end

  def contrasting_text_color(background_hex_color)
    convert_to_brightness_value(background_hex_color) > 382.5 ? '#000' : '#fff'
  end