francois-blanchard

# Install OSX via pip
$ sudo easy_install pip
$ sudo pip install awscli

# AWS Configuration 
$ mkdir ~/.aws/
$ touch config

# file : ~/.aws/config
#

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# Github error : Large files detected.
$ git push origin mon_repo

#=> Counting objects: 283, done.
#   Delta compression using up to 8 threads.
#   Compressing objects: 100% (125/125), done.
#   Writing objects: 100% (183/183), 32.68 MiB | 79.00 KiB/s, done.
#   Total 183 (delta 97), reused 109 (delta 55)
#   remote: error: GH001: Large files detected.
#   remote: error: Trace: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

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rake secret

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- Launching Keychain Access via Spotlight
- Ensure that expired certificates are visible by selecting”Show Expired Certificates” from the View menu
- Search for “Digicert”.
- Right-click the certificate with a red X and select “Delete DigiCert High Assurance EV Root CA”
- The certificate may not look removed until Keychain Access is restarted
- Restart your browsers

SOURCE : https://www.yesthatallen.com/fixing-an-old-digicert-issue/

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Configure server for deploy rails app

Objective

Prepare a server for a Rails app with MySQL (percona) + NGINX (passenger)
Deploy rails app in new server with Capistrano v3

For this example we need :

• server
• git repo with rails app (here i use ruby 2.1.1 and rails 4.1.2)
• knife solo (http://matschaffer.github.io/knife-solo/)

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Backup server with gem Backup and Whenever

Config Backup

Install backup gem

$ gem install backup

Generate Backup files see doc for genrate's options

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Backup and Restore MySQL database

backup

$ mysqldump -u root -p [database_name] > dumpfilename.sql

restore

$ mysql -u root -p [database_name] < dumpfilename.sql

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Combine two ActiveRecord objects

scope1 = Model.relations1.where(:color => 'blue')
scope2 = Model.relations2.where(:color => 'red')

combine_ids = (scope1 + scope2).uniq
result = Model.where(id: combine_ids)

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Create log files system on Rails

# config/initializers/log_files.rb
MY_LOG = Logger.new("#{Rails.root}/log/tasks/mylog.log")

# call in your model
MY_LOG.info("Hello world")

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# example worker

class TestWorker
  include Sidekiq::Worker
  sidekiq_options :queue => :high

  def perform
    60.times do
      MyModel.delay(:queue => 'high').test_sidekiq
    end