jarv

$ ./manage.py find_ungenerated

Ungenerated certificates: 1

    userid                 name
----------           ----------
         1           john jarvis

jarv

define user_manage(
  $ensure = 'present'
) {

  if $ensure == 'absent' {
    User[$name] -> Group[$name]
  }

  user { $name:
    ensure  => $ensure,

jarv

host <internal address>
  ProxyCommand ssh -W %h:%p <jumpbox address>
  ForwardAgent yes
  IdentityFile <path/to/key>
  User <username>'

jarv

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
[default] Importing base box 'edx-devstack'...
[default] Matching MAC address for NAT networking...
[default] Setting the name of the VM...
[default] Clearing any previously set forwarded ports...
Pruning invalid NFS exports. Administrator privileges will be required...

jarv

- name: check out code
  git: dest=path/to/dest repo=some_repo version=master
  environment:
    GIT_SSH: /tmp/git_ssh.sh

git_ssh.sh:

#!/bin/sh
exec /usr/bin/ssh -o StrictHostKeyChecking=no -i /path/to/git-identity "$@"

jarv

- name: checkout code
  git: dest={{ dir }} repo={{ repo }}
  environment:
    GIT_SSH: /tmp/git_ssh.sh


/tmp/git_ssh.sh

#!/bin/sh
exec /usr/bin/ssh -o StrictHostKeyChecking=no -i {{ git_identity }} "$@"

jarv

instance_tags: 
    environment: sandbox
    github_username: jarv
    Name: jarv-sandbox


...

- name: Launch ec2 instance
  local_action:

jarv

The XQueue software is one of our earliest components and not very
well documented unfortunately.
What it is from a high level is a Django app that monitors a rabbitMQ
cluster that takes student submissions and makes it available to an
external grader.

Here is example code that watches the xqueue for new submissions and
grades them using our python grader -
https://github.com/edx/xqueue-watcher
Here is documentation that describes how to interface with xqueue -

jarv

.my-fa-facebook:before {
  content: "\f09a";
}
.my-fa-facebook-square:before {
  content: "\f082";
}
.my-fa-flickr:before {
  content: "\f16e";
}
.my-fa-google-plus-square:before {

jarv

from os import path
from scipy.misc import imread
import matplotlib.pyplot as plt
import random
import os

from wordcloud import WordCloud, STOPWORDS

text = ""
for f in os.listdir("."):