loganmeetsworld

Hi, I'm Logan. This is where I write code.

loganmeetsworld

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loganmeetsworld

"Optimizing for Learning" Sources

Given at The Lead Dev Meetup in April 2019 by Logan McDonald

Preparation

• John Allspaw's "Monitoring Considerations" given at Monitorama Boston in 2013
• Constraint Satisfaction Theory
  • CSPs
  • "Constraint Satisfaction" by Stephen M. Kosslyn
• "Dickerson Hierarchy of Site Reliability" from Part III on Practices of the Google SRE Handbook

loganmeetsworld

"Optimizing for Learning" Sources

Given at SRECon Americas 2019 (Brooklyn) by Logan McDonald

Resources from my research are presented in the order they are given in the talk. Here are my slides and all the art is by the amazing Emily Griffin. The resources are broken into the four sections of the talk:

Preparation

• John Allspaw's "Monitoring Considerations" given at Monitorama Boston in 2013
• Constraint Satisfaction Theory
• CSPs

loganmeetsworld

security_groups = ec2.describe_security_groups()
bastion_dynamic_security_group = next(d for d in security_groups['SecurityGroups'] if d['GroupName'].endswith(CLUSTER + "-bastion-dynamic"))

# Revoke any ip ranges that contain a description with a time limit that exceeds the limit we set
ip_ranges_to_revoke = get_ip_ranges_to_revoke(bastion_dynamic_security_group, time_limit=6)

if ip_ranges_to_revoke:
    ip_permissions_to_revoke = bastion_dynamic_security_group['IpPermissions']
    ip_permissions_to_revoke[0]['IpRanges'] = ip_ranges_to_revoke
    ec2.revoke_security_group_ingress(GroupId=bastion_dynamic_security_group['GroupId'], IpPermissions=ip_permissions_to_revoke)

loganmeetsworld

# Find bastion address using cluster instances returned from the AWS API and given cluster
bastion_instance = aws.describe_ecs_cluster_bastion_instances(session, cluster)
bastion_address = getBastionInstanceIp(bastion_instance)

# Find the user’s IP address
user_ip = requests.get(‘https://checkip.amazonaws.com/', timeout=0.1).text.rstrip()

# Use a break glass conditional for skipping the authorization
# Otherwise authorize a new rule using the user’s IP
# The description of the rule will be made with the user’s IP and the timestamp

loganmeetsworld

Keybase proof

I hereby claim:

• I am loganmeetsworld on github.
• I am loganmcdonald (https://keybase.io/loganmcdonald) on keybase.
• I have a public key whose fingerprint is E008 B82E 3F6A 8EEA 3370 046D D70E FF8A B3EA 4435

To claim this, I am signing this object:

loganmeetsworld

require 'httparty'
require 'json'
require 'pry'
require 'colorize'

module NFL 
  class Arrests
    def initialize(search, crime)
      @crime = crime
      @search = search 

loganmeetsworld

/**
 * Flamingo Sample
 */
@import url('https://fonts.googleapis.com/css?family=Lato|Tangerine|Inconsolata|Droid+Sans');

body {
  font-family: sans-serif;
  font-size: 14px;
  padding: 50px;
  background: #333;