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@sebsto
sebsto / Test User Data
Last active March 25, 2023 08:15
#!/bin/sh
###
### Payload script
###
CURRENT_USER=$(whoami)
echo "Hello from shell script as user: \"$CURRENT_USER\""
exit 0
@sebsto
sebsto / gist:2ce59d80a3b5d30bb1ee456e96bf0fb0
Last active March 12, 2023 20:12
Redshift Materialized View Demo
drop table store;
drop table sales;
drop materialized view city_sales;
CREATE TABLE "sales" (
"id" int PRIMARY KEY,
"item" varchar,
@sebsto
sebsto / gist:d91b29a8017c5a0800aa668ac208a2c7
Created November 12, 2022 07:05
SwiftUI Loading Circle
// inspired by https://www.appcoda.com/swiftui-animation-basics-building-a-loading-indicator/
import SwiftUI
struct LoadingCircleView: View {
@State private var isLoading = false
var body: some View {
ZStack {
Circle()
@sebsto
sebsto / cognito-trigger-lambda.py
Last active November 8, 2022 12:08
#
# This is an example of an AWS Lambda function implementing a Cognito CUSTOM_AUTH flow.
# The custom auth flow accepts a JWT token a sole credentials and returns AUTHENTICATED when
# the JWT token is valid
#
import os
from utils import jwt_apple
def define_auth_challenge(event):
@sebsto
sebsto / gist:6441df09e97c4cbbd22b8ba313b8d642
Last active July 19, 2022 03:26
Amazon Linux 2 first boot on Virtual Box
# Download the VDI from https://cdn.amazonlinux.com/os-images/latest/
# Doc is at http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/amazon-linux-2-virtual-machine.html
# Be sure you have config/meta-data and config/user-data ready as per the below
# change ec2-user's password to your password
$ cat config/meta-data
local-hostname: amazonlinux.onprem
# eth0 is the default network interface enabled in the image. You can configure
@sebsto
sebsto / gist:b53e61c5c8cfc38ad87289dd089b8174
Created April 6, 2022 18:34
To mount an APS volume on Ubuntu
# build Fuse from the source
mkdir -pv ~/src && cd ~/src
git clone https://github.com/sgan81/apfs-fuse.git
cd apfs-fuse
git submodule init
git submodule update
mkdir build
cd build
@sebsto
sebsto / jwt_apple.py
Created August 17, 2020 16:56
# inspired by https://gist.github.com/davidhariri/b053787aabc9a8a9cc0893244e1549fe
# and https://sarunw.com/posts/sign-in-with-apple-3/
from time import time
import json
import os
from jwcrypto import jwk, jwt, jws
import requests
@sebsto
sebsto / gist:468670c7c0d5feeade69
Created March 20, 2015 07:53
AWS CLI : discover your service limits from the command line
aws support describe-trusted-advisor-check-result --check-id eW7HH0l7J9 --query 'result.sort_by(flaggedResources[?status!="ok"],&metadata[2])[].metadata' --output table --region us-east-1
@sebsto
sebsto / Queue.swift
Created August 2, 2020 11:14
//
// Queue.swift
//
// An implemntation of a thread safe FIFO queue in Swift
//
// inspired by
// https://medium.com/@dmytro.anokhin/concurrency-in-swift-reader-writer-lock-4f255ae73422
// https://www.mikeash.com/pyblog/friday-qa-2011-10-14-whats-new-in-gcd.html
// https://benoitpasquier.com/data-structure-implement-queue-swift/
@sebsto
sebsto / gist:a81db362d06f5d7b3afc65b4c19048a3
Created June 6, 2020 13:37
Quick Hack on SelectionSet
// specific for my Data Model to unblock me.
// only tested on queries.
➜ Landmarks diff -c /Users/stormacq/Documents/amazon/code/amplify/amplify-ios//Amplify/Categories/DataStore/Model/Schema/ModelSchema+Definition.swift ./Pods/Amplify/Amplify/Categories/DataStore/Model/Schema/ModelSchema+Definition.swift
*** /Users/stormacq/Documents/amazon/code/amplify/amplify-ios//Amplify/Categories/DataStore/Model/Schema/ModelSchema+Definition.swift Sat Jun 6 08:29:27 2020
--- ./Pods/Amplify/Amplify/Categories/DataStore/Model/Schema/ModelSchema+Definition.swift Sat Jun 6 08:49:47 2020
***************
*** 31,36 ****
--- 31,45 ----
return false