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@pesterhazy
pesterhazy / building-sync-systems.md
Last active May 1, 2026 20:42
Building an offline realtime sync engine

So you want to write a sync system for a web app with offline and realtime support? Good luck. You might find the following resources useful.

Overview articles

@sybeck2k
sybeck2k / start-role-session.sh
Last active May 2, 2025 05:50
A script to rapidly test IAM policies
#!/usr/bin/env bash
# MIT No Attribution
# Copyright 2023 Roberto Migli
# Permission is hereby granted, free of charge, to any person obtaining a copy of this
# software and associated documentation files (the "Software"), to deal in the Software
# without restriction, including without limitation the rights to use, copy, modify,
# merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so.
@raphlinus
raphlinus / not_too_clever.md
Created June 23, 2022 00:50
Translation of grugbrain.dev into English

The not-too-clever programmer

This is a translation of grugbrain.dev into clear English. All props to the original author.

Introduction

This is a collection of thoughts on software development, originally written by an pseudonymous author styling themselves the "grug brain developer," but then translated into clear English by Raph Levien.

I am not an extremely smart developer, but I have many years of experience and have learned some things, although still don't know everything.

@jim80net
jim80net / tf_move_state.sh
Last active February 25, 2022 10:21
Move terraform state between projects.
#!/usr/bin/env bash
##
# Usage: tf_move_state.sh source_directory target_directory source_resource_name <target_resource_name (uses source_resource_name if not provided)>
# Provide source and target directories using relative paths.
# WARNING: TEST ON AN INCONSPICUOUS AREA AS STAINING MAY OCCUR
# Credit to https://github.com/mcalhoun
set -e
@grigorkh
grigorkh / nginx-ingress-diff-table.md
Created May 18, 2021 14:25
Aspect or Feature kubernetes/ingress-nginx nginxinc/kubernetes-ingress with NGINX nginxinc/kubernetes-ingress with NGINX Plus
Fundamental
Authors Kubernetes community NGINX Inc and community NGINX Inc and community
NGINX version Custom NGINX build that includes several third-party modules NGINX official mainline build NGINX Plus
Commercial support N/A N/A Included
Implemented in Go/Lua (while Nginx is written in C) Go/Python Go/Python
Load balancing configuration via the Ingress resource
@noamsdahan
noamsdahan / passrole_actions_and_parameters.csv
Last active January 27, 2026 22:02
A list of IAM actions which require iam:PassRole as of December 2020. Nested parameters are written with dot ('.') notation. Where there are multiple relevant parameters, they are separated by the pipe character ('|'). consult the AWS documentation on special cases - noted with an asterisk (most of them are "array of documents" type parameters).…
IAM Permission Params
amplify:CreateApp iamServiceRoleArn
amplify:UpdateApp iamServiceRoleArn
appconfig:CreateConfigurationProfile RetrievalRoleArn
appconfig:UpdateConfigurationProfile RetrievalRoleArn
appflow:CreateConnectorProfile connectorProfileConfig.connectorProfileProperties.Redshift.roleArn
appflow:UpdateConnectorProfile connectorProfileConfig.connectorProfileProperties.Redshift.roleArn
application-autoscaling:RegisterScalableTarget RoleARN
apprunner:CreateService SourceConfiguration.AuthenticationConfiguration.AccessRoleArn|InstanceConfiguration.InstanceRoleArn
apprunner:UpdateService SourceConfiguration.AuthenticationConfiguration.AccessRoleArn|InstanceConfiguration.InstanceRoleArn
@kbravh
kbravh / adjust-cron-for-dst.py
Last active March 26, 2023 17:14
Adjust cron events for DST (Daylight Savings Time) automatically with a Python function to be run on AWS Lambda.
from datetime import datetime
import pytz
import boto3
# define our CloudEvents client
client = boto3.client('events')
# Let's grab our current time in GMT and convert it to local time (US Central)
utc_time = datetime.utcnow().replace(tzinfo=pytz.utc)
# Set your timezone here! See timezones here: https://gist.github.com/heyalexej/8bf688fd67d7199be4a1682b3eec7568
@mattburman
mattburman / main.go
Last active August 5, 2022 13:00
An example of encoding and decoding the start of a kafka message that conforms to the Confluent Schema Registry wire format
// An example of encoding and decoding the start of a kafka message that conforms
// to the Confluent Schema Registry wire format:
// see https://docs.confluent.io/current/schema-registry/serdes-develop/index.html#wire-format
package main
import (
"encoding/binary"
"fmt"
"github.com/pkg/errors"
@gene1wood
gene1wood / aws-lambda-relative-import-no-known-parent-package.md
Last active August 20, 2025 06:59
Python relative imports in AWS Lambda fail with `attempted relative import with no known parent package`

Python relative imports in AWS Lambda fail with attempted relative import with no known parent package

The Problem

In AWS Lambda if I attempt an explicit relative import like this

.
├── lambda_file.py
└── example.py
@alexcasalboni
alexcasalboni / aws-lambda-static-type-checker.md
Last active December 5, 2025 19:15
AWS Lambda Static Type Checker Example (Python3)

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: