Matt Gillard mattgillard

How to use Python3 Type Hints in AWS Lambda

TL;DR

Static Type Checkers help you find simple (but subtle) bugs in your Python code. Check out lambda_types.py and incrementally improve your code base and development/debugging experience with type hints.

Your Lambda Function code will go from this:

| Title | Description

A collection of The Morning Paper posts relating to containers, operating systems etc.

In order of first appearance in The Morning Paper.

AWS CLI JMESPath cheatsheet

Random query recipes of JMESPath for the AWS CLI tools that I might have written or stumbled upon.

Examples

Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2025-03-24: Commenting is disabled permanently. Previous comments are archived at web.archive.org. ]

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

	import boto3
	import time
	region = 'eu-west-1'
	user_data_script = """#!/bin/bash
	instanceid=$(curl http://169.254.169.254/latest/meta-data/instance-id)
	cd /
	mkdir moodledata
	mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 fs-xxxxxxxxxxc.efs.eu-west-1.amazonaws.com:/ moodledata
	tar czf mooodledata-backup-$(date +%d-%m-%Y_%H-%M).tar.gz /moodledata
	aws s3 mv mooodledata-backup-*.tar.gz s3://xxxxxxxxx/

	function setup-volume {
	param(
	[parameter(mandatory=$true,helpmessage="drive letter")]
	[string] $driveletter,
	[parameter(mandatory=$false,helpmessage="file system label")]
	[string] $label = ""
	)

	$driveletter = $driveletter.ToLower()

	## This Script is intended to be used for Querying remaining time and resetting Terminal Server (RDS) Grace Licensing Period to Default 120 Days.
	## Developed by Prakash Kumar (prakash82x@gmail.com) May 28th 2016
	## www.adminthing.blogspot.com
	## Disclaimer: Please test this script in your test environment before executing on any production server.
	## Author will not be responsible for any misuse/damage caused by using it.

	Clear-Host
	$ErrorActionPreference = "SilentlyContinue"

	## Display current Status of remaining days from Grace period.