rollwagen rollwagen

Keybase proof

I hereby claim:

I am rollwagen on github.
I am rollwagen (https://keybase.io/rollwagen) on keybase.
I have a public key ASDtWgTkfepNwxe0lhdz4HNefIc67eS_gcl1N71axhZQRgo

To claim this, I am signing this object:

Dynamo DB Data Models and Modelling

It’s a bad idea to model your data in DynamoDB the same way you model your data in a relational database. The entire point of using a NoSQL datastore is to get some benefit you couldn’t get with a relational database. If you model the data in the same way, you not only won’t get that benefit but you will also end up with a solution that’s worse than using the relational database!

from Alex DeBrie: The DynamoDB book

aws cloudformation "validation"

consider the following sample cloudformation yaml file y.yaml

Resources:
  S3SampleBucketinstacks3bucketF253E29D:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: "Test_S3SampleBucketinstacks3bucketF253E29D"
      BucketVersioningConfiguration: Enabled

arch linux arm on esxi fling (on raspberry pi 4)

create / Register VM -> Linux / Other 4.x or Later (64bit) -> ...
- CD/DVD Drive: use a Linux ISO that can boot into a recue shell e.g 'debian-10.9.0-arm64-netinst.iso'; make sure "Connect at power on" is selected
- VM Options / Boot options: Firmware "EFI" (should be the default anyways)
power On VM -> should see GNU GRUB welcome screen (from debian ISO/cdrom) -> Advanced Options -> Rescue mode
- go through menu selections (language, keyborad, etc) until you have a shell ('Execute a shell in the intaller environment')
partition the disk; see also ArchLinux Wiki Partition the disk

lsof / netstat on macos

lsof - list open files

display (list) all open TCP+UDP ports and grep for listening ones

sudo lsof -i -P | grep LISTEN

COMMAND     PID           USER   FD   TYPE             DEVICE SIZE/OFF   NODE NAME
launchd       1           root   11u  IPv6 0x26dd73cb700390df      0t0    TCP *:22 (LISTEN)
....

	#!/usr/bin/env python3
	"""
	Convert PDF documents to markdown format using OCR.

	This module provides tools to extract text from PDF files using OCR
	technology and convert it to markdown format.
	"""
	# /// script
	# requires-python = ">=3.12"
	# dependencies = [

	#!/usr/bin/env python3
	# /// script
	# requires-python = ">=3.12"
	# dependencies = [
	# "click>=8.1.7",
	# "requests>=2.31.0",
	# ]
	# ///
	import click
	import sys

	#!/bin/bash

	START_URL="https://d-0123456789.awsapps.com/start#/"
	REGION="eu-central-1"

	HASH="$(echo -n "$START_URL" \| sha1sum \| cut -d' ' -f1)"
	CACHE_FILENAME="$HASH.json"

	SSO_TOKEN=$(jq -r '.accessToken' < ~/.aws/sso/cache/"$CACHE_FILENAME")

	package main

	import (
	"context"
	"encoding/json"
	"errors"
	"flag"
	"fmt"
	"os"
	"strings"

	# -- coding: utf-8 --
	"""

	Python cli tool to query lambda runtimes for all lambda functions in
	all AWS accounts in an (SSO-) AWS Organization

	Requirements / pre-requisites:

	- `pip install boto3 mypy-boto3 mypy-boto3-sts mypy-boto3-sso mypy-boto3-lambda boto3-stubs[essential,sso,lambda,sts]`