Martin Jackson actionjack

Description

Simple Dashing widget (and associated job) to display Pingdom checks.

##Dependencies

Add it to dashing's gemfile:

Accessing EMC Atmos using S3 tooling

There are loads of tools out there built around the AWS APIs. In response to that, some software comes with an AWS compatibility layer. One of them is EMC Atmos.

There's a surprising lack of documentation on how to actually use this compatibility. The best I could find is the "EMC® Atmos™ Version 2.1 Programmer’s Guide P/N 300-013-493 REV 01". However, all it does it tell you that the S3 compatibility is hosted on a different port, and which operations are supported. It doesn't give any hints on how to get any tools working.

The main gotcha seems to be that the S3 API has both a path and DNS based way of accessing buckets. It's important to use the path based mechanism.

JetS3t

What it is

Problem: Terraform doesn't play nicely with pre-existing infrastructure.

Solution: Officially there isn't one - but here's a work-around that does the trick.

Summary

Declare a new, temporary resource in your Terraform plan that is nearly identical to the extant resource.
Apply the plan, thus instantiating the temporary "twinned" resource and building a state file.

S3 as Yum repo

There are two parts to this:

Managing access to non-public S3 resources.
Building RPM repositories in an automated, deterministic way that Yum can use.

Environment

In general, a CentOS 7 x86_64 box in AWS EC2; in specific, this Packer profile.

AB benchmark and plotting

Small script to execute a apache benchmark ab from one host to other.

The scripts are designed for benchmark tsuru routers, and compare between hipache+nginx vs. vulcand.

It will gather metrics of request time and CPU in the target so they can be later plot using gnuplot.

Concourse Tutorial - Example Tasks

This gist includes some https://concourse.ci job tasks

hello-world.yml - displays "hello world"
display-other-task.yml - uses this task as a resource itself and displays the hello-world.yml YAML; assumes that the gist is available in the concourse pipeline as resource-gist.
display-other-task-renamed-resource-input.yml - is like the task above, but assumes the resource is now named gist rather than resource-gist

	#!/bin/bash

	BRIDGE="br-int"
	ovs-vsctl --may-exist add-br $BRIDGE
	ovs-vsctl --if-exists del-port $BRIDGE $5
	ovs-vsctl --may-exist add-port $BRIDGE $5

	# Update, upgrade and install development tools:
	apt-get update
	apt-get -y upgrade
	apt-get -y install build-essential
	apt-get -y install git-core

	# Install rbenv
	git clone git://github.com/sstephenson/rbenv.git /usr/local/rbenv

	# Add rbenv to the path:

	#!/bin/bash

	CONTENT_TYPE="application/json"
	DESCRIPTION="bad things™ are happening"
	URL="https://events.pagerduty.com/generic/2010-04-15/create_event.json"

	if [ $# -ne 3 ]; then
	echo "Usage: pd-event.sh [TYPE] [SERVICE KEY] [INCIDENT KEY]"
	echo " - TYPE: [t]rigger \| [a]cknowledge \| [r]esolve"
	echo " - SERVICE KEY: unique identifier for service"

	module Gem
	class << self

	##
	# Returns full path of previous but one directory of dir in path
	# E.g. for '/usr/share/ruby', 'ruby', it returns '/usr'

	def previous_but_one_dir_to(path, dir)
	split_path = path.split(File::SEPARATOR)
	File.join(split_path.take_while { \|one_dir\| one_dir !~ /^#{dir}$/ }[0..-2])