rameerez

☁️ How I got off the cloud and migrated everything from AWS to a VPS in Hetzner

This is an opinionated handbook on how I migrated all my Rails apps off the cloud and into VPS.

This is how I manage real production loads for my Rails apps. It assumes:

• Rails 7+
• Ruby 3+
• PostgreSQL
• Ubuntu Server 24.04
• Capistrano, Puma, Nginx

selcukcihan

AWS serverless öğrenmek isteyenlere şunları tavsiye edebilirim:

• https://theburningmonk.com blog yazıları çok iyi, ayrıca ücretli eğitimleri de oluyor, twitterda da takip edebilirsiniz çok faydalı.
• IaC için en kolay başlangıç https://www.serverless.com/framework buradaki örnek projelere bakabilirsiniz https://www.serverless.com/examples?prod_EXAMPLES_SEARCH_GROWTH%5BrefinementList%5D%5Bplatform%5D%5B0%5D=aws
• serverless'ın merkezinde Lambda var, https://www.serverless.com/aws-lambda burada güzel bir özet var
• AWS'nin serverless dokümanları da çok iyi https://aws.amazon.com/serverless/ buradan başlayıp keşfedebilirsiniz, mesela tutoriallar var https://aws.amazon.com/serverless/getting-started/?nc=sn&loc=2&serverless.sort-by=item.additionalFields.createdDate&serverless.sort-order=desc
• Bir AWS hesabı açın kendinize eğer yoksa, free tier gayet yeterli oluyor, hiç fatura ödemeden serverless öğrenebilirsiniz, billing alarm kurmayı unutmayın ama https://aws.amazon.com/blogs/mt/setting-up-an-amazon-cloudwatch

p4bl0-

This project is a tiny compiler for a very simple language consisting of boolean expression.

The language has two constants: 1 for true and 0 for false, and 4 logic gates: ! (not), & (and), | (or), and ^ (xor).

It can also use parentheses to manage priorities.

Here is its grammar in BNF format:

expr ::= "0" | "1"

shimo164

Name,Type,Level,Duration,Cost,Lang,Description
Security on AWS,Quest,,27 minutes,Free,,"This quest is designed to teach you how to apply AWS Identity and Access Management, in concert with several other AWS Services, to address real-world application and service security management scenarios."
Serverless Web Apps using Amazon DynamoDB,Quest,,5 hours,3 Credits,,"Serverless architectures allow you to build and run applications and services without needing to provision, manage, and scale infrastructure. This quest will show how to design, build, and deploy interactive serverless web applications, using a simple HTML/JavaScript web interface which uses Amazon API Gateway calls to send requests to AWS Lambda backends that query Amazon DynamoDB data."
Alexa Skills Development,Quest,,4 hours,30 Credits,,"In this Quest, you will learn how to create Alexa skills that respond to voice commands and which can be used on the Amazon Echo, Dot, and Tap devices. You will create back-end functions in AWS Lambda, and then conn

karanjitsingh

from datetime import datetime, timedelta
import time
import requests
import sys
import os

second = 1000
minute = second * 60
hour = minute * 60
day = hour * 24

veggiemonk

Resources

KUBERNETES CLUSTER

• local https://github.com/kubernetes-sigs/kind (or just use minikube if it works for you)
• cloud https://cloud.google.com/kubernetes-engine (for PersistentVolume and Ingress, I needed to try the real deal)
• practice environment: https://github.com/arush-sal/cka-practice-environment

PRACTICE

pdp7

WARNING: interfaces can enumarate differently:

ufw status
#iptables -F
#iptables --table nat --append POSTROUTING --out-interface wlxe0b94db737c9 -j MASQUERADE
#iptables --table nat --append POSTROUTING --out-interface enp0s20u1u1 -j MASQUERADE
iptables --table nat --append POSTROUTING --out-interface enp0s20u1u2 -j MASQUERADE
#iptables --append FORWARD --in-interface enx1cba8c9bbeb5 -j ACCEPT
#iptables --append FORWARD --in-interface enx9884e391a556 -j ACCEPT
iptables --append FORWARD --in-interface enx9884e391a559 -j ACCEPT

hmans

This is a RESTful Rails controller, implementing all 7 RESTful actions. In my Rails apps, 9 out of 10 controllers will end up looking like this.

class PostsController < ApplicationController
  load_and_authorize_resource

  def create
    @post.save and redirect_to(@post) or render(:new)
  end

alekseykulikov

Recently CSS has got a lot of negativity. But I would like to defend it and show, that with good naming convention CSS works pretty well.

My 3 developers team has just developed React.js application with 7668 lines of CSS (and just 2 !important). During one year of development we had 0 issues with CSS. No refactoring typos, no style leaks, no performance problems, possibly, it is the most stable part of our application.

Here are main principles we use to write CSS for modern (IE11+) browsers:

• SUIT CSS naming conventions + SUIT CSS design principles;
• PostCSS + CSSNext. Future CSS syntax like variables, nesting, and autoprefixer are good enough;
• Flexbox is awesome. No need for grid framework;
• Normalize.css, base styles and variables are solid foundation for all components;

zankich

#!/bin/bash

#
# run this script on your linux host computer to connect to the bbb and forward your internet.
# be sure to replace "enp0s20u1" with the appropriate usb device for your bbb, which can be found
# by doing an "ifconfig" on your host computer.
#

sudo -- sh -c 'echo 1 > /proc/sys/net/ipv4/ip_forward'
sudo iptables -A POSTROUTING -t nat -j MASQUERADE