William Koller williamkoller

Previsão de Custos: AWS Lambda vs EC2/ECS com Golang

Este documento compara os custos e fatores operacionais de executar aplicações Golang na AWS utilizando Lambda e EC2/ECS, considerando:

Uso de memória
Uso de CPU
Redis (com Asynq)
Escrita em disco
Processamento de filas com Asynq

📘 Escalando Amazon Aurora com Lambda e EventBridge

🧩 Visão Geral

Em workloads variáveis, escalar o Amazon Aurora Serverless v2 nos horários certos pode reduzir custos e melhorar a performance.

Combinando AWS Lambda + Amazon EventBridge, é possível automatizar o ajuste de capacidade da Aurora de forma programada, com baixo custo de manutenção.

Comparativo AWS x GCP para upload de arquivos (PDF, DOC, etc.)

Equivalentes AWS x GCP

Função	AWS	GCP
Função serverless	AWS Lambda	Cloud Functions
Container serverless	AWS Fargate	Cloud Run
Serviço com instância	ECS on EC2	Compute Engine (GCE)

Múltiplas chaves SSH para GitHub e GitLab

1. Gerar Chaves SSH

ssh-keygen -t rsa -C "[email protected]" -b 4096 -f ~/.ssh/id_rsa_github
ssh-keygen -t rsa -C "[email protected]" -b 4096 -f ~/.ssh/id_rsa_gitlab

	package main

	import (
	"fmt"
	"strings"
	"time"
	)

	// ============================================================================
	// 1. SINGLE RESPONSIBILITY PRINCIPLE (SRP)

	// Place your key bindings in this file to override the defaultsauto[]
	[
	{
	"key": "ctrl+shift+d",
	"command": "editor.action.copyLinesDownAction",
	"when": "editorTextFocus && !editorReadonly"
	},
	{
	"key": "ctrl+shift+alt+down",
	"command": "-editor.action.copyLinesDownAction",

	{
	"application.shellEnvironmentResolutionTimeout": 100,

	"breadcrumbs.enabled": true,

	"codesnap.backgroundColor": "transparent",
	"codesnap.transparentBackground": true,
	"codesnap.boxShadow": "0 0 0",

	"editor.selectionClipboard": true, // Only for Linux

	export const formatDateToBR = (date: Date): string => {
	return new Intl.DateTimeFormat('pt-BR').format(date)
	}

	export const formatDateToISO = (date: Date): string => {
	return date.toDateString().split('T')[0]
	}

	export const formatDateToBRShort = (date: Date): string => {
	return new Intl.DateTimeFormat('pr-BR', {

	# If you come from bash you might have to change your $PATH.
	# export PATH=$HOME/bin:$HOME/.local/bin:/usr/local/bin:$PATH

	# Path to your Oh My Zsh installation.
	export ZSH="$HOME/.oh-my-zsh"

	# Set name of the theme to load --- if set to "random", it will
	# load a random theme each time Oh My Zsh is loaded, in which case,
	# to know which specific one was loaded, run: echo $RANDOM_THEME
	# See https://github.com/ohmyzsh/ohmyzsh/wiki/Themes

	var res = pm.response.json();
	pm.environment.set('access_token', res.access_token);