ThinGuy

import requests
import ftplib
import subprocess
import socket
import argparse
import shutil
from urllib.parse import urlparse

def check_http_https(url):
    """Check if HTTP or HTTPS is available."""

ThinGuy

#!/bin/bash

# Some of these files are uploaded to Landscape server
PAC_FILE_LOCATION="http://<zscaler-pac-config-file-location/file.PAC"
CA_TAR="zscaler.tar.gz"
CA_CERTIFICATE_NAME="<zscaler-root-ca-certificate-name-replace-me.crt>"
CERT_DIR_PATH="/usr/local/share/ca-certificates"

# Import ZSCALER Public CA Root Cert
sudo apt-get install libnss3-tools -y 

ThinGuy

name: microcloud-base
description: MicroCloud Base VM Profile
config:
  boot.autostart: "true"
  linux.kernel_modules: br_netfilter
  user.network-config: |
    renderer: networkd
    version: 2
    ethernets:
      enp5s0: {}

ThinGuy

### **Variables**
export RACK=<MAAS_RACK_IP>
export REGION=<MAAS_REGION_IP>


### **Boot Files**
```
curl -sSlL http://$RACK:5248/images/|awk -F'>|<' '/^<a href/{print $3,$5}'
``

ThinGuy

How to Configure Microsoft DHCP for Canonical MAAS

This guide explains how to configure an external Microsoft DHCP server to work with Canonical MAAS (Metal as a Service). Configuring the right DHCP options will ensure that nodes are able to correctly PXE boot and communicate with MAAS for provisioning.

Step 1: Open the DHCP Management Console

1. On your Windows Server, press Windows + R, type dhcpmgmt.msc, and press Enter.
2. Alternatively, you can access it through Server Manager by selecting Tools -> DHCP.

Step 2: Select the DHCP Scope to Configure

1. In the DHCP console, navigate to the appropriate scope that you want to configure for MAAS nodes.

ThinGuy

# To prevent unsuppoorted architecture error messages from apt on Ubuntu 24.04 (Noble Numbat)
# with the new apt sources format

# Example error messages on `apt update` after a fresh install: 
# N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://packages.microsoft.com/repos/edge stable InRelease' doesn't support architecture 'i386'
# N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'

#################################################
### SINGLE-ARCH (i.e. fix arch-related error) ###
#################################################

ThinGuy

maas-build-debug-image() {
  local -a UBU_RELS=(bionic)
  export IMG_PWD="Ubuntu1+"
  # Create salted pw for images
  printf "\e[2G - Salting the desired password of \x22${IMG_PWD}\x22 for use in debug-image\n"
  export SALTED_PWD="$(echo 'Ubuntu1+'|mkpasswd --method=SHA-512 --rounds=4096 -s)"
  # Dowload images
  printf '%s\n' ${UBU_RELS[@]}|xargs -rn1 -P0 bash -c '
  IMG_URL=https://cloud-images.ubuntu.com/${0}/current/${0}-server-cloudimg-amd64-root.tar.xz;
  printf "\e[2G - Fetching Ubuntu release ${0^} from ${IMG_URL}\n"

ThinGuy

#!/bin/bash

sudo install -o0 -g0 -m0755 /dev/null /etc/networkd-dispatcher/routable.d/99-disable-tso-gso-gro.sh

cat <<'EOF' |sudo tee /etc/networkd-dispatcher/routable.d/99-disable-tso-gso-gro.sh
#!/bin/bash
#
# This script will be placed in /etc/networkd-dispatcher/routable.d/
# and made exectuable
#

ThinGuy

# Work around for when you want/need your password to contain part of your username

# Disable the pwquality profile in PAM
sudo pam-auth-update --disable pwquality
# Change your password
echo 'ubuntu:Ubuntu123!'|sudo chpasswd -s
# Enable the pwquality profile in PAM
sudo pam-auth-update --enable pwqualit

ThinGuy

fix-usb2serial() {
  printf "\n\e[1mFix USB to Serial device permissions\e[0m\n"
  local DEVREGX='.*tty[UA].*' W='s'
  declare -ag TTYUSB_DEVS=($(find /sys/class/tty -type l -regex "${DEVREGX}" -printf "%P\n" 2>&1))
  [[ ${#TTYUSB_DEVS[@]} -ge 1 ]] && { local W=""; } || { printf "\nNo USB to Serial devices found using regex \x22${DEVREGX}\x22.\nQuitting\n\n";return 3; }
  [[ -n $(id -Gn|grep 2>/dev/null -oE dialout) ]] && { printf "\e[2G - User $USER already a member of \x22dialout\x22 group \e[3m(Good\x21)\e[0m\n"; } || { printf "\e[2G -- Adding User $USER to the \x22dialout\x22 group\n"; sudo usermode -aG dialout $USER; }
  printf "\e[2G - Creaing udev rules file: /etc/udev/rules.d/50-ttyUSB.rules\n"
  sudo install -o0 -g0 -m0644 /dev/null /etc/udev/rules.d/50-ttyUSB.rules
  printf "\e[2G - Adding ${#TTYUSB_DEVS[@]} udev rule${W}:\n"
  (printf "%s\n" ${TTYUSB_DEVS[@]}|xargs -I{} printf "KERNEL==\x22{}\x22,\x20MODE=\x270666\x22\n")|sudo tee -a /etc/udev/rules.d/50-ttyUSB.rules|sed -r 's/^/        /g'