rbrady

from django.http import HttpResponse

def index(request):
    return HttpResponse("Hello, world.")

rbrady

ERROR: An unexpected error prevented the server from fulfilling your request. [Errno 12] Cannot allocate memory (HTTP 500)

This problem can occur when running openstack in a memory constrained environment.  
Mysql has a feature where it reserves a certain amount of ram based on the size of 
the databases it contains.

The logs showed the following:
Dec 11 13:50:57 localhost.localdomain keystone-all[1777]: (keystone.common.wsgi): 2013-12-11 13:50:57,766 ERROR [Errno 12] Cannot allocate memory
Dec 11 13:50:57 localhost.localdomain keystone-all[1777]: Traceback (most recent call last):
Dec 11 13:50:57 localhost.localdomain keystone-all[1777]: File "/opt/stack/venvs/keystone/lib/python2.7/site-packages/keystone/common/wsgi.py", line 235, in __call__

rbrady

[stack@localhost ~]$ cat nova.log 
Dec 16 16:42:59 localhost nova-api[32737]: 2013-12-16 16:42:59,196.196 32748 DEBUG nova.api.openstack.wsgi [req-0ca85637-afa8-4dba-9515-00a68df13082 b7ba3cf575c148e09ec7c3a56f7de071 d356acee69364d6391c0f88c0f605a5c] No Content-Type provided in request get_body /opt/stack/venvs/nova/lib/python2.7/site-packages/nova/api/openstack/wsgi.py:849
Dec 16 16:42:59 localhost nova-api[32737]: 2013-12-16 16:42:59,197.197 32748 DEBUG nova.api.openstack.wsgi [req-0ca85637-afa8-4dba-9515-00a68df13082 b7ba3cf575c148e09ec7c3a56f7de071 d356acee69364d6391c0f88c0f605a5c] Calling method <bound method KeypairController.index of <nova.api.openstack.compute.contrib.keypairs.KeypairController object at 0x4336310>> _process_stack /opt/stack/venvs/nova/lib/python2.7/site-packages/nova/api/openstack/wsgi.py:976
Dec 16 16:42:59 localhost nova-api[32737]: 2013-12-16 16:42:59,207.207 32748 DEBUG nova.api.openstack.wsgi [req-4358e5e7-4ccc-48b4-8982-ddacd586aab6 b7ba3cf575c148e09ec7c3a56f7de071 d356acee6936

rbrady

http://ur1.ca/mst49

rbrady

#!/usr/bin/env python

class Foo(object):
	
	def __init__(self, name):
		self.name = name
	
	def get_name(self):
		return self.name

rbrady

# suggested changes & improvements
  - ensure all python code is pep8 compliant (pyflakes, flake8)
  - ensure all bash code meets common bash standards (bashate)
  - refactor brewpi-script into a proper python package
    - move all executable scripts into a /bin directory to be installed to /usr/bin (or /usr/local/bin)
    - reorganize remaining python modules into appropriate namespaces
    - provide user expierence of "pip install brewpi-script" (or maybe brewpi-utils name would be more accurate)
    - this will provide easier path to getting python-brewpi-utils packages into the distro repos
  - refactor repo to be more platform/distro agnostic
  - remove dependency checks in the code e.g. (try: import foo except ImportError: print("apt-get install...")

rbrady

// This #include statement was automatically added by the Particle IDE.
#include "MQTT/MQTT.h"

void callback(char* topic, byte* payload, unsigned int length);


/**
 * if want to use IP address,
 * byte server[] = { XXX,XXX,XXX,XXX };
 * MQTT client(server, 1883, callback);

rbrady

# Option #1, Separate classes w/ workflow class to orchestrate

PlanManager
	create_plan(plan_name, templates)
    get_plan(plan_name)
    update_plan(plan_name, templates)
    delete_plan(plan_name)

DeploymentOptionsManager
	get_deployment_template_resource_types(plan_name)

rbrady

// Josiah's sample cpp program with classes
// 3 files
// - main.cpp: this is the main program executed at the command line
// - hello_world.h: the header file for your class
// - hello_world.cpp: the implementation file for you class

// main.cpp
#include "hello_world.h"

int main ()

rbrady

import argparse
import csv
import os
import sys


def parse_opts(argv):
    parser = argparse.ArgumentParser(
        description='Transform a csv file to desired formatting for '
                    'dumb proprietary software that does not use a well'