aaronfeng

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"

mendelgusmao

#!/bin/sh
### BEGIN INIT INFO
# Provides: btsync
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Multi-user daemonized version of btsync.

czottmann

worker:     QUEUE=* bundle exec rake environment resque:work 
scheduler:  bundle exec rake environment resque:scheduler

ptaoussanis

(comment ; Fun with transducers, v2

  ;; Still haven't found a brief + approachable overview of Clojure 1.7's new
  ;; transducers in the particular way I would have preferred myself - so here goes:

  ;;;; Definitions
  ;; Looking at the `reduce` docstring, we can define a 'reducing-fn' as:
  (fn reducing-fn ([]) ([accumulation next-input])) -> new-accumulation
  ;; (The `[]` arity is actually optional; it's only used when calling
  ;; `reduce` w/o an init-accumulator).

peterc

# Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# By Peter Cooper
#
# MIT license
#
# * Not advised to use in your production environment! ;-)
# * Requires Ruby 1.9
# * Supports A and CNAME records
# * See http://www.ietf.org/rfc/rfc1035.txt for protocol guidance
# * All records get the same TTL

crosbymichael

FROM ubuntu

RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
RUN apt-get update
RUN apt-get upgrade

RUN apt-get install -y openssh-server supervisor
ADD sshd.conf /etc/supervisor/conf.d/sshd.conf

RUN mkdir -p /var/run/sshd

yevgenko

!-------------------------------------------------------------------------------
! Xft settings
!-------------------------------------------------------------------------------

Xft.dpi:                    96
Xft.antialias:              false
Xft.rgba:                   rgb
Xft.hinting:                true
Xft.hintstyle:              hintslight

dominicsayers

First install Virtualbox

1. sudo pico /etc/apt/sources.list.d/virtualbox.list
2. Add deb http://download.virtualbox.org/virtualbox/debian saucy contrib non-free
3. wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
4. sudo apt-get update
5. sudo apt-get install dkms unzip
6. sudo apt-get install virtualbox-4.3 --no-install-recommends
7. wget http://download.virtualbox.org/virtualbox/4.3.6/Oracle_VM_VirtualBox_Extension_Pack-4.3.6.vbox-extpack
8. sudo VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.3.6.vbox-extpack

favila

(ns favila.async-util
  "Some missing pieces of core.async.

   as-transducer: Make a transducer function easily without Clojure 1.7.
   go-pipe: async/pipe, but returns the go-loop.
   fast-pipeline-blocking: faster than async/pipeline-blocking, but unordered results.
   blocking-consumer: consume a channel with multiple worker threads."
  (:require [clojure.core.async :as async
             :refer [go go-loop <! >! <!! >!! close! take! put! chan]]))

akiatoji

Clojure on Raspberry Pi with OS X

"Clojure running on Raspberry Pi" sounded so cool that I just had to give it a try.

Install JDK

• Download ARM JDK from Oracle and instlal on Raspberry Pi
• Change visudo to contain the following