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@fujin
fujin / 8_vol_ebs_stripeset.rb
Created November 24, 2010 21:48
automatic 8 vol ebs LVM2 stripe set (raid0). 256k chunks, 8-way stripe. 65k readahead.
include_recipe "aws"
include_recipe "lvm"
include_recipe "xfs"
esvg = node.elasticsearch.ebs.lvm.volume_group
eslv = node.elasticsearch.ebs.lvm.logical_volume
Chef::Log.info "ElasticSearch: setting up 8 100G EBS volumes"
aws = data_bag_item("aws", node.app_environment)
8.times do |d|
disk = (d == 0 ? "/dev/sdi" : "/dev/sdi#{d}")
@guileen
guileen / hash.js
Created December 22, 2010 02:15
nodejs crc32 function
/**
* Calculates the hash/checksum of a string. Default algorithm is MD5.
*
* @param {String} str
* @param {String} algorithm
* @return {String} checksum
* @api public
*/
exports.hash = function (str, algorithm) {
if (algorithm === 'crc32') {
@jed
jed / LICENSE.txt
Created May 20, 2011 13:27 — forked from 140bytes/LICENSE.txt
generate random UUIDs
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Jed Schmidt <http://jed.is>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
@mashihua
mashihua / Capfile
Created October 12, 2011 10:40
Capistrano deploy script for node.js
load 'deploy' if respond_to?(:namespace) # cap2 differentiator
Dir['vendor/gems/*/recipes/*.rb','vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }
load 'config/deploy' # remove this line to skip loading any of the default tasks
load 'config/node'
@tj
tj / routes.js
Created October 15, 2011 00:23
Express routes
var app = require('../app');
console.log();
app.routes.all().forEach(function(route){
console.log(' \033[90m%s \033[36m%s\033[0m', route.method.toUpperCase(), route.path);
});
console.log();
process.exit();
@LeverOne
LeverOne / LICENSE.txt
Created October 24, 2011 04:17 — forked from jed/LICENSE.txt
generate random v4 UUIDs (107 bytes)
DO WTF YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Alexey Silin <[email protected]>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WTF YOU WANT TO PUBLIC LICENSE
@indexzero
indexzero / readme-outline.md
Created November 14, 2011 08:26
A quick outline of a README.md

README.md Outline

  • Header and a Brief description (should match package.json)
  • Example (if applicable)
  • Motivation (if applicable)
  • API Documentation: This will likely vary considerably from library to library.
  • Installation
  • Tests
  • Contributors
  • License
@FugueNation
FugueNation / almost a module
Created December 10, 2011 14:56
Ultra fast Metrics with Node.js & Redis's bitmaps
var EventEmitter = require("events").EventEmitter,
redis = require("redis"),
dateformat = require("dateformat");
function population32(x)
{
x -= ((x >> 1) & 0x55555555);
x = (((x >> 2) & 0x33333333) + (x & 0x33333333));
x = (((x >> 4) + x) & 0x0f0f0f0f);
x += (x >> 8);

Application specific host grouping in Riemann-dash

It is generally desirable to group all the hosts for a specific service into a single dashboard view. For example, all the web servers are in single view while all the database servers are in another view.

This is usually not an issue when you are sending custom metrics using Riemann client. However, there are cases where you are using something that you do not control how the metrics are being sent. i.e., Riemann-tools.

Since Riemann-tools scripts are application agnostic, in order for the dashboard view to group hosts, we must inject some application specific information into the tags field. Tags is a collection of arbitrary strings. In the case of Riemann-tools scripts you can pass in arbitrary strings on the command line.

riemann-health --host 127.0.0.1 --tag "prod" --tag "webserver"

@mrinaudo
mrinaudo / LICENSE
Last active October 27, 2021 18:37
Basic Template Builder for AWS VPC - Interactively generate basic AWS CloudFormation-based AWS VPC templates.
The MIT License (MIT)
Copyright (c) 2014 Matteo Rinaudo
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions: