scalp42

      PASSWORD_VALIDATOR = /(      # Start of group
        (?:                        # Start of nonmatching group, 4 possible solutions
          (?=.*[a-z])              # Must contain one lowercase character
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...
          (?=.*\d)                 # Must contain one digit from 0-9
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...

scalp42

import redis
import time

class LockTimeout(BaseException):
	pass

class Lock(object):

	"""
	Implements a distributed lock using Redis.

scalp42

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

scalp42

1. Introduction to the replicator database

A database where you PUT/POST documents to trigger replications and you DELETE to cancel ongoing replications. These documents have exactly the same content as the JSON objects we used to POST to /_replicate/ (fields "source", "target", "create_target", "continuous", "doc_ids", "filter", "query_params".

Replication documents can have a user defined "_id". Design documents (and _local documents) added to the replicator database are ignored.

The default name of this database is _replicator. The name can be changed in the .ini configuration, section [replicator], parameter db.

2. Basics

scalp42

require 'rubygems'
require 'redis'
require 'redis/distributed'

r = Redis::Distributed.new %w[redis://host1:6379 redis://host2:6379]

# show node for key "foo"
p r.node_for("foo")

# set the value of "foo"

scalp42

    # Balancing over 4 nodes by hashing URI (consistently with md5) 
    # onto 16 shards. 

    upstream x0 { server 192.168.0.2;  server 192.168.0.3 backup; }
    upstream x1 { server 192.168.0.2;  server 192.168.0.4 backup; }
    upstream x2 { server 192.168.0.2;  server 192.168.0.5 backup; }
    upstream x3 { server 192.168.0.2;  server 192.168.0.3 backup; }

    upstream x4 { server 192.168.0.3;  server 192.168.0.4 backup; }

scalp42

module MyApp
  module Database
    def connect(pool_size = nil, reap_time = nil)
      return unless defined? ActiveRecord::Base
      config = Rails.application.config.database_configuration[Rails.env]
      config['reaping_frequency'] = reap_time || ENV['AR_DB_REAP_FREQ'] || 10  # seconds
      config['pool']              = pool_size || ENV['AR_DB_POOL']      || 5
      ActiveRecord::Base.establish_connection(config)
    end

scalp42

# ssh-settings

eval $(ssh-agent)
priv_path="$HOME/.ssh/ida_rsa"
passphrase="aaaa"

if [ "$passphrase" = "" ]; then
  # without passphrase
  ssh-add $priv_path
else

scalp42

r53 = AWS::Route53.new(
  :access_key_id => 'aws-key-id',
  :secret_access_key => 'aws-secret-key')

response = r53.client.list_resource_record_sets(
  :hosted_zone_id => "zone-id",
  :start_record_name => 'xxx.example.com', 
  :start_record_type => 'CNAME'
)
puts response[:resource_record_sets].map{|r| r[:name]}

scalp42

{
  "variables": {
    "aws_access_key_id": "{{env `AWS_ACCESS_KEY_ID`}}",
    "aws_secret_access_key": "{{env `AWS_SECRET_ACCESS_KEY`}}",
    "aws_account_id": "4819-1673-9571",
    "s3_bucket": "balanced-amis",
    "x509_cert_path": "{{pwd}}/balanced-aws.crt",
    "x509_key_path": "{{pwd}}/balanced-aws.key"
  },
  "builders": [