keymastervn

## Installing the NodeSource Node.js 10.x repo...


## Populating apt-get cache...

+ apt-get update
Hit:1 http://deb.debian.org/debian buster InRelease
Hit:2 http://security.debian.org/debian-security buster/updates InRelease
Hit:3 http://deb.debian.org/debian buster-updates InRelease
Ign:4 https://dl.bintray.com/fullstaq/fullstaq-ruby-apt debian-10 InRelease

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$ heroku login

# remember heroku instance is wellplayed with platform below
$ bundle lock --add-platform x86_64-linux --add-platform ruby

# remember postgres is wellplayed too
$ rails new app --database=postgresql

Assume you push already

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#fullstaq-ruby enables malloc-trim and jemalloc which is said to save up to 50% memory consumption
#ARG RUBY_VERSION=2.6.6-jemalloc
#FROM quay.io/evl.ms/fullstaq-ruby:${RUBY_VERSION}-slim

FROM swipesense/ruby-jemalloc:2.6-buster-slim
ENV LANG C.UTF-8
ENV DEBIAN_FRONTEND noninteractive

# Specify JP mirror, other mirrors are less stable than JP's
RUN echo 'deb http://ftp.jp.debian.org/debian/ buster main contrib non-free' > /etc/apt/sources.list

keymastervn

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

keymastervn

ruby '2.7.1'

gem 'rails', github: 'rails/rails'
gem 'tzinfo-data', '>= 1.2016.7'  # Don't rely on OSX/Linux timezone data

# Action Text
gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
gem 'okra', github: 'basecamp/okra'

# Drivers

keymastervn

  // non param lambda as a method
  def insert_sql
    -> (controller, action, title, url, user_id) {
      ActiveRecord::Base.connection.execute <<~SQL, [controller, action, title, url, user_id]
        insert into dummy(controller, action, title, url, user_id, created_at, updated_at)
        values(
          $1,
          $2,
          $3,
          $4,

keymastervn

# frozen_string_literal: true

require "spec_helper"

describe PgSearch::Multisearch do
  with_table "pg_search_documents", &DOCUMENTS_SCHEMA

  with_model :MultisearchableModel do
    table do |t|
      t.string :title

keymastervn

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/pre/09_yarn.sh" :
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/usr/bin/env bash
      set -xe

      EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)

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function mapValues(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    result[key] = fn(obj[key], key);
    return result;
  }, {});
}

function pick(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    if (fn(obj[key])) {

keymastervn

files:
  '/etc/nginx/conf.d/01_proxy.conf':
    mode: '000644'
    owner: root
    group: root
    content: |
      client_max_body_size 10M;
  '/etc/nginx/default.d/01_locations.conf':
    mode: '000644'
    owner: root