Stephan Renatus srenatus

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"

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

	require 'rubygems'
	require 'net/https'
	require 'uri'
	require 'json'
	require 'yaml/store'
	require 'jekyll'

	desc "Update CDNjs Libraries"
	task :updatecdnjs do
	site = Jekyll.configuration({})

	// Add a new configuration
	configurations {
	fortify { extendsFrom compile }
	}

	// pull in the fortify libs for the new configuration
	dependencies {
	fortify 'com.fortify:sourceanalyzer:3.90'
	}

	require('fs');
	require('d3');
	var xmldom = require('xmldom');

	var dataset = {
	apples: [53245, 28479, 19697, 24037, 40245],
	};

	var width = 460,
	height = 300,

	[root@ci cache]# chef-shell
	loading configuration: none (standalone session)
	Session type: standalone
	Loading.done.

	This is the chef-shell.
	Chef Version: 11.8.2
	http://www.opscode.com/chef
	http://wiki.opscode.com/display/chef/Home

	{-# OPTIONS_GHC -fno-warn-orphans #-}
	{-# LANGUAGE BangPatterns #-}
	{-# LANGUAGE DeriveFunctor #-}
	{-# LANGUAGE DeriveFoldable #-}
	{-# LANGUAGE DeriveTraversable #-}
	{-# LANGUAGE FlexibleContexts #-}
	{-# LANGUAGE GeneralizedNewtypeDeriving #-}
	{-# LANGUAGE NamedFieldPuns #-}
	{-# LANGUAGE OverloadedStrings #-}
	{-# LANGUAGE StandaloneDeriving #-}

	$ fog
	Welcome to fog interactive!
	:default provides AWS, HP, OpenStack, Rackspace, VirtualBox and Vmfusion
	>> quantum = Fog::Network.new(:provider => "OpenStack")
	>>
	?> # Create a new network:
	?> quantum.networks.create(:name => "network_1")
	<Fog::Network::OpenStack::Network
	id="09b42312-bba6-4d52-a558-023e1de0d872",
	name="network_1",

	"""
	usage: python remove_output.py notebook.ipynb [ > without_output.ipynb ]


	"""
	import sys
	import io
	from IPython.nbformat import current