tobi

# Rails production setup via SQLite3 made durable by https://litestream.io/ 
# Copy this to Dockerfile on a fresh rails app. Deploy to fly.io or any other container engine. 
#
#  try locally: docker build . -t rails && docker run -p3000:3000 -it rails
#
#  in production you might want to map /data to somewhere on the host, 
#  but you don't have to!
# 
FROM ruby:3.0.2

joshuap

Rails => Lambda

These are my notes from deploying a boilerplate Rails app to AWS Lambda (yeah, you read that right) using Lamby. Basically this is me going through the Quick Start guide.

• https://aws.amazon.com/lambda/
• https://lamby.custominktech.com
• https://lamby.custominktech.com/docs/quick_start

Questions/comments: https://twitter.com/heyjoshwood

charlesroper

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

mperham

class Counter
  include Sidekiq::Worker
  
  # I'd use a separate Redis instance from Sidekiq
  REDIS = ConnectionPool.new(size: 5) { Redis.new(...) }

  # Call this API in your Rails app code to increment counters
  # as the user does things.
  def self.incr(name, amount=1)
    key = "counter-#{name}-#{current_window}"

gwillem

# 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)

yefim

{
  "AWSEBDockerrunVersion": "1",
  "Image": {
    "Name": "<AWS_ACCOUNT_ID>.dkr.ecr.us-east-1.amazonaws.com/<NAME>:<TAG>",
    "Update": "true"
  },
  "Ports": [
    {
      "ContainerPort": "443"
    }

micahbf

#!/usr/bin/env ruby

require 'time'
require 'logger'
require 'aws-sdk'

AWS_REGION = "us-east-1"
AWS_KEY_ID = ""
AWS_SECRET_KEY = ""

mariocesar

function password_encode(password)
    local bcrypt = require 'bcrypt'
    return bcrypt.digest(password, 12)
end

function check_password(password, encoded_password)
    local bcrypt = require 'bcrypt'  
    return bcrypt.verify(password, encoded_password)
end

rothgar

# Idempotent way to build a /etc/hosts file with Ansible using your Ansible hosts inventory for a source.
# Will include all hosts the playbook is run on.
# Inspired from http://xmeblog.blogspot.com/2013/06/ansible-dynamicaly-update-etchosts.html

- name: "Build hosts file"
  lineinfile: dest=/etc/hosts regexp='.*{{ item }}$' line="{{ hostvars[item].ansible_default_ipv4.address }} {{item}}" state=present
  when: hostvars[item].ansible_default_ipv4.address is defined
  with_items: groups['all']

javan

class ApplicationController < ActionController::Base
  before_filter :ensure_xhr

  private
    def ensure_xhr
      if request.get? && request.format && (request.format.js? || request.format.json?)
        head :forbidden unless request.xhr?
      end
    end
end