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James Garner jg75

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@jg75
jg75 / user-data
Created January 24, 2020 05:18
Automatically associate an elastic ip to the running ec2 instance
#! /bin/bash
allocation_id=<ALLOCATION_ID>
metadata=169.254.169.254/latest/meta-data
get-region() {
curl -s http://$metadata/placement/availability-zone | awk '{
print(substr($0, 0, length($0)-1))
}'
}
@jg75
jg75 / get_account.py
Last active December 16, 2019 18:22
Get the AWS account id for the current session user's credentials
import boto3
def get_account_id(session):
"""
Get Account Id.
Get the AWS account id for the current session user's credentials.
"""
client = session.client("sts")
@jg75
jg75 / child.yml
Last active November 14, 2019 21:42
Export value and import value is kind of annoying, because you can't change an export that's already being imported, but you can use a parameter and force an update if it changes.
AWSTemplateFormatVersion: 2010-09-09
Description: The child template needs the Arn for the task role and the bucket name for the task.
Parameters:
InputS3BucketArn:
Description: Parameter containing the Arn of the S3 Bucket for input
Type: AWS::SSM::Parameter::Value<String>
Default: /Yolo/Development/InputS3BucketArn
OutputS3BucketArn:
@jg75
jg75 / lambda_handler.js
Created October 16, 2019 20:13
Serverless VPC lambda skeleton
'use strict';
console.log('Loading function');
exports.handler = async (event, context) => {
console.log('Received event:', JSON.stringify(event, null, 2));
let responseBody = {
message: "This is a message",
input: event
};
@jg75
jg75 / static-website-cdn-template.yml
Created August 19, 2019 19:47
CloudFormation Template: S3 static website, CloudFront CDN, CloudFront origin access identity, optional alternate domain name and ACM certificate
AWSTemplateFormatVersion: 2010-09-09
Description: Cloudformation Template
Parameters:
S3BucketParameter:
Description: S3 Bucket
Type: String
AliasParameter:
Description: CNAME (alternate domain names)
@jg75
jg75 / test_things.py
Last active May 29, 2019 18:52
PyTest ExampleMemoized function embedded in a handler function
from unittest import mock
import thing
import pytest
@pytest.fixture()
def mock_client(monkeypatch, request):
"""Mock the client."""
@jg75
jg75 / rekognition.py
Created May 20, 2019 17:51
Playing with AWS Rekognition
"""Playing with AWS Rekognition."""
import argparse
import hashlib
import json
import logging
import boto3
logging.basicConfig(
@jg75
jg75 / foxdot_example.py
Created May 15, 2019 20:20
FoxDot
"""An example of procedurally generated music using FoxDot."""
from atexit import register
from FoxDot import Clock, pluck, p1
def fibonacci(n):
"""Get a list of numbers in the fibonacci sequence."""
step = 1 if n >= 0 else -1
seq = [0, 1]
@jg75
jg75 / threadpool_example.py
Last active May 16, 2019 15:39
threading and multiprocessing, two great tastes that taste great together
"""Threading vs. Multiprocessing thread pools example."""
import argparse
import logging
import multiprocessing.pool
import random
import threading
import time
logging.basicConfig(
@jg75
jg75 / super_mro.py
Last active May 2, 2019 18:13
super's behavior and method resolution order in multiple inheritance
"""
MRO (Method Resolution Order) with multiple inheritance is resolved via
a linearization algorithm that flattens a tree. In some cases, super()
is not bound to a classes superclass, but instead to a sibling depending
on the object's MRO.
"""
class Base:
def __init__(self, field, **kwargs):