lost-theory

Monitorama 2014 notes

http://monitorama.com/

Best talks day 1:

• Please, no More Minutes, Milliseconds, Monoliths... or Monitoring Tools! - Adrian Cockcroft
  • gave 5 good rules for monitoring systems, showed what cloud / microservices monitoring looks like @ Netflix
• Simple math to get some signal out of your noisy sea of data - Toufic Boubez
• explains why static alert thresholds don't work and gave 3 techniques to use instead

lost-theory

Security meetup @ Pagerduty 2014-07-11

http://www.meetup.com/PagerDuty-DevOps-Meetup/events/189658332/

Alex Smolen, Product Security @ Twitter

http://www.slideshare.net/yandex/defending-the-bird-justin-collins-alex-smolen-twitter

"Defend the bird!"

lost-theory

$ knife ssh -m "...every host in the network..." "sudo netstat -nutap" -a hostname > meganetstat.txt

$ python
>>> from collections import Counter as C
>>> HS = "...every host in the network...".split()
>>> ip = lambda s: s.split(":")[0]
>>> xs = [map(ip, [x[0], x[4], x[5]]) for x in [x.strip().split() for x in open("meganetstat.txt").readlines() if "tcp" in x] if len(x)>=6]
>>> ipmap = [(h, C([x[1] for x in xs if x[0] == h])) for h in HS]
>>> ipmapx = dict([(sorted([(x,y) for (x,y) in ip[1].items() if x.startswith("10.")], key=lambda t: -t[1])[0][0], ip[0]) for ip in ipmap])
>>> sorted(C(map(ipmapx.get, [x[2] for x in xs if x[2].startswith("10.")])).items(), key=lambda t: t[1])

lost-theory

from mock import patch #http://pypi.python.org/pypi/mock
import flask

import myapp

@patch('flask.templating._render', return_value='')
def test_mocked_render(mocked):
    t = myapp.app.test_client()
    print "mocked", repr(t.get("/").data)
    print "was _render called?", mocked.called

lost-theory

#!/usr/bin/env python
from fabric.api import task, local, settings

class CommandFailed(Exception):
    def __init__(self, message, result):
        Exception.__init__(self, message)
        self.result = result

def elocal(*args, **kwargs):
    with settings(warn_only=True):

lost-theory

from flask import request, Flask

from cloudinary import uploader #pip install git+https://github.com/cloudinary/pycloudinary/

class Cloudinary(object):
  def __init__(self, app):
    config = app.config['CLOUDINARY_URL'].split('://')[1]
    config = config.replace("@", ":")
    self.api_key, self.api_secret, self.name = config.split(":")

lost-theory

DevOps Master Class & Opbeat Launch

• http://www.eventbrite.com/e/devops-master-class-opbeat-launch-party-registration-12672813727
• 2014-09-26

Opbeat dude

• 2 years ago, we decided to make it our mission to make ops better
• flew around the world
• met the best ops people, learned how to do proper ops

lost-theory

Downloaded Miniconda installer from here:

http://conda.pydata.org/miniconda.html

In a terminal:

$ sh ./Downloads/Miniconda-latest-MacOSX-x86_64.sh
Enter (read license agreement)
yes (accept license agreement)

Enter (use default installation location)

lost-theory

import yaml

tree = yaml.load('''
---
- folder1
- folder2:
    - subfolder1:
        - deepfolder1
    - subolder2
- folder3

lost-theory

$ #spoiler alert!

$ grep -rn CLUE .

$ for v in `grep Make: vehicles | awk '{print $2}' | sort | uniq`; do grep -rn $v interviews; done;

$ python
>>> membership_suspects = reduce(set.intersection, map(set, [[x.strip() for x in open("memberships/%s" % y).readlines()] for y in ["AAA", "Delta_SkyMiles", "Museum_of_Bash_History"]]))
>>> people = [x.strip().split('\t') for x in open("people").readlines() if "\t" in x]
>>> male_suspects = [x[0] for x in people if x[1] == "M"]