Sky Bryant maewolfsky

AWS CLI JMESPath cheatsheet

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

Examples

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	# -- coding: utf-8 --
	import os, boto3, botocore

	S3BUCKET=os.environ.get('S3BUCKET', None)
	S3PREFIX=os.environ.get('S3PREFIX', 'rds/')
	LASTRECEIVEDFILENAME=os.environ.get('LASTRECEIVEDFILENAME', '.timestamp')


	def lambda_handler(event, context):
	log_file_data = ""

	/*
	actually.js
	_ _ _
	__ _ __ _ __ _ __ _ ___\| \|_ _ _ __ _\| \| \|_ _
	/ _` \|/ _` \|/ _` \|/ _` \|/ __\| __\| \| \| \|/ _` \| \| \| \| \| \|
	\| (_\| \| (_\| \| (_\| \| (_\| \| (__\| \|_\| \|_\| \| (_\| \| \| \| \|_\| \|_
	\__,_\|\__,_\|\__,_\|\__,_\|\___\|\__\|\__,_\|\__,_\|_\|_\|\__, ( )
	\|___/\|/

	*/

	Getting started
	===============
	# Make sure you have ggplot2 installed
	install.packages("ggplot2")
	library(ggplot2)


	Basic examples
	==============

	import javax.net.ssl.SSLParameters;
	import javax.net.ssl.SSLSocket;
	import javax.net.ssl.SSLSocketFactory;
	import java.io.*;

	/** Establish a SSL connection to a host and port, writes a byte and
	* prints the response. See
	* http://confluence.atlassian.com/display/JIRA/Connecting+to+SSL+services
	*/
	public class SSLPoke {