neto-developer

Installing libvips from source on Ubuntu 18.04 Bionic

wget https://github.com/libvips/libvips/releases/download/v8.8.2/vips-8.8.2.tar.gz
tar -xvf vips-8.8.2.tar.gz 
cd vips-8.8.2
./configure

Make sure image loading libraries are installed.

neto-developer

Docker - Certbot - Manual Wildcard Domain Certificate.md

Create a dir for mount in containers, and save letsencrypt folders

mkdir letsencrypt

Run a container and follow the instructions

docker run -it --rm -v "$PWD"/letsencrypt:/etc/letsencrypt certbot/certbot certonly --manual -d '*.domain.com'

neto-developer

Disable PM2 Vizion feature to save IO and Memory Usage and avoid "FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory"

A feature do pm2 chamada "vizion" tenta indexar o repositório do projeto de cada comando rodando. Em grandes repositórios e principalmente com um grande numero de processos rodando isso pode causar um grande consumo de memória e IO, o que impacta drasticamente a performance da maquina e dependendo da maquin, pode causar: "FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory"

A seguir salvamos o estado do pm2 no arquivo ~/.pm2/dump.pm2, matamos o PM2 God Daemon e todos os processos que ele gerencia, alteramos o dumo.pm2 desativando a flag do "vizion" e ressucitamos o pm2 ao estado original.

neto-developer

$('h1,h2,h3,h4,h5,h6').each(function(){ 
    console.log($(this).prop("tagName") + ' - ' + $(this).text().trim()); 
    $(this).html($(this).prop("tagName") + ' - ' + $(this).html());
});

neto-developer

$('img').each(function(){  
    let t = $(this);
    let url = `https://dummyimage.com/${Math.round(t.outerWidth())}x${Math.round(t.outerHeight())}/f0f0f0/999`;
    console.log(`${Math.round(t.outerWidth())}x${Math.round(t.outerHeight() => ${t.attr('src')}`);
    t.attr('src', url); 
});

neto-developer

/**
 * Tool to autofill some forms
 */

function randomiza(n) {
	return Math.round(Math.random() * n);
}

function getRange(min, max) {
	return Math.floor(Math.random() * (max - min + 1)) + min;

neto-developer

Considering $4 is the position of DataTime on access_log file

cat /var/log/httpd/access_log | awk '$4 >= "[14/Apr/2020:09:50:00" && $4 < "[14/Apr/2020:10:15:00"'

neto-developer

Analyser:
https://www.elastic.co/guide/en/elasticsearch/reference/6.8/search-suggesters-phrase.html

Template:
POST /_template/template_produtos
{
  "index_patterns": [
    "produto*"
  ],
  "settings": {