Julio Martins eujuliu

## README.md

      
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                eujuliu
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              December 9, 2025 03:29
            
              
                Ever needed to spin up multiple Ubuntu VMs quickly for testing, development, or learning? In this post, I'll walk you through a bash script that automates the entire process using libvirt/KVM and cloud-init.
              
          
    Automating Ubuntu VM Creation with libvirt and Cloud-Init

Ever needed to spin up multiple Ubuntu VMs quickly for testing, development, or learning? In this post, I'll walk you through a bash script that automates the entire process using libvirt/KVM and cloud-init.
What This Script Does


Downloads the official Ubuntu Noble cloud image automatically
Creates multiple VMs with customizable resources (memory, CPUs, disk)
Configures static IPs in the 192.168.122.2-254 range
Sets up SSH access via your GitHub public keys


## README.md

      
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                eujuliu
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              November 9, 2025 16:08
            
              
                This is a Docker compose for Generate a Hashicorp Vault with Vault Agent and have a manager for your .envs
              
          
    Setup Hashicorp Vault + Vault Agent on Docker Compose

Here you will learn my configuration for a full docker compose hashicorp vault configuration
Files

First create a directory for put the config files, i will put in /opt/vault
Create the docker-compose.yml
services:

  
## envfile_to_vault
#!/usr/bin/env bash

# Usage: ./env-to-vault.sh path/to/.env secret/path/in/vault key/path/in/vault
# Example: ./env-to-vault.sh .env secret/data/myapp envs

set -e

if [ "$#" -ne 3 ]; then
  echo "Usage: $0 <.env file> <vault secret path> <vault key path>"
  exit 1

## index.html
<!doctype html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Server Sent Event</title>
</head>

<body>
<div class="event-data" id="data"></div>

## archlinux-qemu-kvm.md

      
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                eujuliu
                / archlinux-qemu-kvm.md
            
            
              Created
              August 26, 2025 10:58
                — forked from tatumroaquin/archlinux-qemu-kvm.md
            
              
                QEMU-KVM Installation for Arch Linux 
              
          
    QEMU-KVM in Arch Linux

Check Virtualization Support

lscpu | grep -i Virtualization

VT-x for Intel
AMD-Vi for AMD

Ensure that your kernel includes KVM modules
	#!/usr/bin/env bash

	# Usage: ./env-to-vault.sh path/to/.env secret/path/in/vault key/path/in/vault
	# Example: ./env-to-vault.sh .env secret/data/myapp envs

	set -e

	if [ "$#" -ne 3 ]; then
	echo "Usage: $0 <.env file> <vault secret path> <vault key path>"
	exit 1
	<!doctype html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<title>Server Sent Event</title>
	</head>

	<body>
	<div class="event-data" id="data"></div>