eusonlito

#!/usr/bin/env bash

set -Eeuo pipefail

### CONFIG #################################################################
PHP_VERSION="8.4"
SYSTEM_LOCALE="en_US.UTF-8"     # final user is English-speaking
TIMEZONE="${TIMEZONE:-UTC}"     # override by exporting TIMEZONE before running
USE_PHP_FPM="1"                 # 1 = Apache + PHP-FPM (recommended), 0 = mod_php
MYSQL_APT_DEB="mysql-apt-config_0.8.34-1_all.deb"   # latest as of 2025-09-02

eusonlito

The SQLite optimizations must be carried out at two different times: once in a unique and permanent way for the database and another time for each connection that is made. Below are the configurations that should be made in each case.

Unique and Permanent Configurations

These configurations are set only once and affect the database persistently, meaning they do not need to be reconfigured each time a connection is established:

PRAGMA journal_mode = WAL;

Sets the database journal mode to "WAL" (Write-Ahead Logging), which improves performance in concurrent operations.

eusonlito

#!/bin/bash

APP="php"
CURRENT_HIGHEST=$(ps -eo pid,comm --sort=-%mem | grep "$APP" | head -n 2 | tail -n 1)
CURRENT_HIGHEST_PID=$(echo $CURRENT_HIGHEST | awk '{print $1'})
LAST_PID_FILE="/tmp/oom-kill-previous"

if [ -f "$LAST_PID_FILE" ]; then
    LAST_PID=$(cat $LAST_PID_FILE)

eusonlito

SELECT
    "s"."relname" AS "table_name",
    pg_total_relation_size("s"."schemaname" || '.' || "s"."relname") / 1024 / 1024 AS "total_size",
    pg_relation_size("s"."schemaname" || '.' || "s"."relname") / 1024 / 1024 AS "table_size",
    (pg_total_relation_size("s"."schemaname" || '.' || "s"."relname") - pg_relation_size("s"."schemaname" || '.' || "s"."relname")) / 1024 / 1024 AS "index_size",
    "s"."n_live_tup" AS "table_rows"
FROM
    "pg_stat_user_tables" "s"
JOIN
    "pg_class" "c" ON "s"."relid" = "c"."oid"

eusonlito

ps -eo comm,rss | awk '{arr[$1]+=$2} END {for (i in arr) print arr[i], i}' | sort -nr | head

eusonlito

<?php

protected static function generateUniqueSlug(string $title): string
{
    $slug = str_slug($title);

    if (static::query()->where('slug', $slug)->doesntExist()) {
        return $slug;
    }

eusonlito

ip="XXX.XXX.XXX.XXX"

for set in $(ipset list -n); do
    ipset test $set $ip &> /dev/null && echo "IP $ip found in $set"
done

eusonlito

<?php

/**
 * Benchmark: Reflection Performance
 */

define('TESTS', 1000000);

header('Content-type: text/plain');

eusonlito

<?php declare(strict_types=1);

namespace App\Services\Jwt;

use DateTimeImmutable;
use Lcobucci\JWT\Encoding\ChainedFormatter;
use Lcobucci\JWT\Encoding\JoseEncoder;
use Lcobucci\JWT\Signer\Key\InMemory;
use Lcobucci\JWT\Signer\Hmac\Sha256;
use Lcobucci\JWT\Token\Builder;

eusonlito

#!/bin/bash

echo -e "\nSTART: $(date "+%Y-%m-%d %H:%M:%S")\n\n"

logs="/root/logs/auth-log-ip-locate"

if [ ! -d "$logs" ]; then
    install -d "$logs"
fi