danigunawan

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

danigunawan

Subdomaining Localhost with Rails 5

I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api

Rails.application.routes.draw do
  constraints subdomain: "api" do
    scope module: "api" do

danigunawan

# save history to ~/.bash_history as soon as command is run
export PROMPT_COMMAND='history -a'

# save unlimited history
# osx doesn't seem to respect =-1 or = options
export HISTSIZE=9999999999
export HISTFILESIZE=999999999

# osx doesn't actually respect this and it'll fall back to unix timestamp (which we want)
export HISTTIMEFORMAT="%d/%m/%y %T "

danigunawan

#!/bin/bash

while read oldrev newrev ref
do
  branch=`echo $ref | cut -d/ -f3`

  if [ "master" == "$branch" ]; then
    git --work-tree=./path/under/root/dir/live-site/ checkout -f $branch
    echo 'Changes pushed live.'
  fi

danigunawan

Amazon Rekognition - Python Code Samples

1. Labels Detection
2. Faces Detection
3. Faces Comparison
4. Faces Indexing
5. Faces Search

danigunawan

Amazon Rekognition - Python Code Samples

1. Labels Detection
2. Faces Detection
3. Faces Comparison
4. Faces Indexing
5. Faces Search

danigunawan

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

danigunawan

class UserProfile < ActiveRecord::Base
  has_attached_file :picture,
    styles: {
      original: {geometry: '1000x0>'},
      thumb: '100x100#',
      large: '300x200>',
    },
    convert_options: {large: "-quality 80 -strip -interlace Plane"},
    default_url: "http://s3-ap-southeast-1.amazonaws.com/#{ENV["S3_BUCKET"]}/user_profiles/placeholder.png",
    path: (Rails.env == 'test' || Rails.env == 'development') ? ":rails_root/public/images/:class/:id/:style/:filename" : "/:class/:id/:style/:filename",

danigunawan

FROM tensorflow/tensorflow:latest-gpu-py3

RUN apt update -y && apt install -y \
libsm6 \
libxext6 \
libxrender-dev

RUN pip install \
opencv-python

danigunawan

class CustomFileStringIO < StringIO
  def initialize(*args)
    super(*args[1..-1])
    @file_name = args[0]
  end

  def original_filename
    @file_name
  end
end