rubencaro

Elixir installation guide

Version numbers should be the ones you want. Here I do it with the last ones available at the moment of writing.

The simplest way to install elixir is using your package manager. Sadly, at the time of writing only Fedora shows the intention to keep its packages up to date. There you can simply sudo dnf install erlang elixir and you are good to go.

Anyway, if you intend to work with several versions of erlang or elixir at the same time, or you are tied to a specific version, you will need to compile it yourself. Then asdf is your best friend.

treeherder

We have used the most recent beagleboard debian eMMC flasher image to flash the beagle bone black eMMC. As of this writing: wget http://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz After flashing is complete, erase the sd card, then reboot. Once booted, We can use fdisk -l to list our available devices, I found mine by checking the size and the partition table. After verfifying the card's address, we can reformat it to fit our needs. Of course, this can be done before plugging the card in, as well.

debian@beaglebone:~$ fdisk -l
Disk /dev/mmcblk0: 15.9 GB, 15931539456 bytes 
        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            8192    31116287    15554048    b  W95 FAT32

joostrijneveld

# Heavily depends on:
# libqrencode (fukuchi.org/works/qrencode/)
# paperkey (jabberwocky.com/software/paperkey/)
# zbar (zbar.sourceforge.net)

# Producing the QR codes:
# Split over 4 codes to ensure the data per image is not too large.
gpg --export-secret-key KEYIDGOESHERE | paperkey --output-type raw | base64 > temp
split temp -n 4 IMG
for f in IMG*; do cat $f | qrencode -o $f.png; done

andrewhavck

(ns udp-ping.core
  (:require [clojure.core.async :refer [>! <! chan go close! thread]])
  (:import (java.net DatagramPacket InetAddress MulticastSocket)))

(def port 10001)
(def group (InetAddress/getByName "224.1.0.0"))
(def buffer-size 1000)

(defprotocol Socket
  (send! [this msg])

halgari

(ns extend-core-logic.core
    (:require [clojure.core.logic :refer :all]
              [clojure.core.logic.protocols :refer [walk]]
              [clojure.java.io :as jio]
              [clojure.string :as string])
    (:import [java.io BufferedReader StringReader]))

;; from: http://federalgovernmentzipcodes.us/
(defn load-db []
  (let [data (java.io.BufferedReader. (java.io.StringReader. (slurp "/Users/tim/Downloads/free-zipcode-database.csv")))

cromwellryan

guard 'shell', :elixirc_bin => "/usr/local/elixirc" do
  watch(/(.+\.ex$)/) { |m| `elixirc #{m[0]}` }
end

guard 'shell', :elixir_bin => "/usr/local/elixir" do
  watch(/(.+\.exs$)/) { |m| `elixir #{m[0]}` }
end

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

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.

jalogisch

input {
  tcp {
    port => 514
    type => syslog
  }
  udp {
    port => 514
    type => syslog
  }
}

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"