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Logging Rails 4 to Syslog, formatted w/ Logstash

Getting Started

Steps to get Rails 4 saving its output to Syslog via Rsyslog. This assumes you are on CentOS, but should be pretty adaptable to any other distribution. Ruby 2.0+ is also required.

1. Add the gems lograge and logstash-event to your Gemfile. Feel free to remove from production if you'd like to test it in development as well or something.
2. Update production.rb with the lograge settings and set the logger to Syslog::Logger.
3. Add the conf files to /etc/rsyslog.d/. /etc/rsyslog.conf should have $IncludeConfig /etc/rsyslog.d/*.conf enabled, so it will load any additional configs from /etc/rsyslog.conf.

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# In spec_helper.rb

RSpec.configure do |config|
  ....
  
  rubocop_output = `rubocop`
  print rubocop_output
  fail "RuboCop Errors" unless rubocop_output.match(/files inspected, no offenses detected/)
end

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=== Commands
  force:alias:list                    # list username aliases for the Salesforce CLI
  force:alias:set                     # set username aliases for the Salesforce CLI
  force:apex:class:create             # create an Apex class
  force:apex:execute                  # execute anonymous Apex code
  force:apex:log:get                  # fetch a debug log
  force:apex:log:list                 # list debug logs
  force:apex:log:tail                 # start debug logging and display logs
  force:apex:test:report              # display test results
  force:apex:test:run                 # invoke Apex tests

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#########################################
# Very basic rack application showing how to use a router based on the uri
# and how to process requests based on the HTTP method used.
#
# Usage:
# $ rackup rack_example.ru
#
# $ curl -X POST -d 'title=retire&body=I should retire in a nice island' localhost:9292/ideas
# $ curl -X POST -d 'title=ask Satish for a gift&body=Find a way to get Satish to send me a gift' localhost:9292/ideas
# $ curl localhost:9292/ideas

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If you're writing web applications with Ruby there comes a time when you might need something a lot simpler, or even faster, than Ruby on Rails or the Sinatra micro-framework. Enter Rack.

Rack describes itself as follows:

Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks.

Before Rack came along Ruby web frameworks all implemented their own interfaces, which made it incredibly difficult to write web servers for them, or to share code between two different frameworks. Now almost all Ruby web frameworks implement Rack, including Rails and Sinatra, meaning that these applications can now behave in a similar fashion to one another.

At it's core Rack provides a great set of tools to allow you to build the most simple web application or interface you can. Rack applications can be written in a single line of code. But we're getting ahead of ourselves a bit.

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Install vsftpd

# Install
sudo apt update
sudo apt install vsftpd
sudo cp /etc/vsftpd.conf /etc/vsftpd.conf.orig

# Firwall rules
sudo ufw allow ftp-data
sudo ufw allow ftp

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Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

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# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

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#!/usr/bin/env ruby

require 'aws-sdk'

#
# This script requires you to have the following environment variables set:
#   AWS_REGION="us-west-2"
#   AWS_ACCESS_KEY_ID="<YOUR_KEY>"
#   AWS_SECRET_ACCESS_KEY="<YOUR_SECRET_KEY>"
#

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現象

# bundle exec rails c
Could not find rake-12.3.0 in any of the sources
Run `bundle install` to install missing gems.

解決

# bundle install --binstubs