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Ruby on Rails Course Outline

Day 1: Introduction to Ruby and Rails

Session 1: Ruby Basics

• Introduction to the Ruby language
• Basic Tools, IDE, Runtime
• Basic syntax, data types, and control structures
• Modules and classes
• Practical examples of module and class usage

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# Requires doctl and the "public-ip-cli" npm module to be globally installed.

#!/bin/sh
FWID="YOUR_FIREWALL_ID"
IPV4=$("${HOME}/.nodebrew/current/bin/public-ip" --4)
#IPV6=$("${HOME}/.nodebrew/current/bin/public-ip" --6)

printf "🔥 Updating DO firewall rules\n\n"

OLD_RULES="$(doctl compute firewall get "${FWID}" --format InboundRules | tr ' ' '\n' | grep -E 'ports:22|ports:2022' | tr '\n' ' ' | sed '$ s/.$//')"

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A4 CSS page template

basic CSS template for A4 print

BONUS: includes style for A2 and A5!

A Pen by rafaelcastrocouto on CodePen.

License.

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ruby -e "require 'rubygems';require 'sinatra';set :port, 9999;set :public, Dir.pwd"

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import torch

# Use when setting up CUDA in the beginning.
# Set max split size = 256 MB
torch.cuda.memory._set_allocator_settings("max_split_size_mb:256")

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apt update
apt upgrade -y
apt install -y apt-transport-https ca-certificates curl gnupg build-essential libjemalloc-dev git zlib1g-dev libssl-dev libreadline-dev libffi-dev locales libsqlite3-dev libyaml-dev libncurses5-dev libgmp-dev libgdbm6 libgdbm-dev tzdata gcc g++ make libpq-dev net-tools ubuntu-dev-tools

# jemalloc dependency
echo "deb http://security.ubuntu.com/ubuntu impish-security main" | sudo tee /etc/apt/sources.list.d/impish-security.list
apt update
apt install libssl1.1

touch /etc/apt/sources.list.d/fullstaq-ruby.list

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require "onnxruntime"
require "mini_magick"

img = MiniMagick::Image.open("bears.jpg")
pixels = img.get_pixels

model = OnnxRuntime::Model.new("model.onnx")
result = model.predict({"inputs" => [pixels]})

p result["num_detections"]

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require 'sinatra'

get "/" do
  erb :form
end

post '/save_image' do
  
  @filename = params[:file][:filename]
  file = params[:file][:tempfile]

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// https://stackoverflow.com/questions/14249506/how-can-i-wait-in-node-js-javascript-l-need-to-pause-for-a-period-of-time

const delay = ms => new Promise(resolve => setTimeout(resolve, ms))
await delay(1000) /// waiting 1 second.

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Let’s set up a federation between earth and mars Kubernetes cluster on AWS.

Earth cluster

1. Create hosted zone:

   ID=$(uuidgen) && \
      aws route53 create-hosted-zone \
      --name earth.kubernetes-aws.io \