Init Arch linux LXC Proxmox

archlinux_initial_config.sh

#!/bin/bash

clear

reflector_country="RU"
# Set en_US as the default locale
var_locale_default="en_US.UTF-8"

echo "=========================================="
echo "== Arch Linux LXC initial configuration =="
echo "=========================================="
echo
echo "This script will perform the inital"
echo "configuration of an Arch Linux LXC."
echo
echo
echo
echo

echo "Setting timezone..."
echo "==================="
echo
echo "Configuring timezone..."
timedatectl set-timezone Europe/Moscow
date
echo
echo
echo
echo

echo "Configuring locales..."
echo "======================"
echo
echo "You now have the option to configure a custom locale or use the default ($var_locale_default) as your locale."
echo "Note: The locale settings can always be changed again at a later time."
echo
while true; do
  read -p "Would you like to configure a custom locale? [no]: " -r
#  echo
  # Set default value for REPLY to "no"
  REPLY=${REPLY:-"no"}
  if [[ "${REPLY,,}" == "y" || "${REPLY,,}" == "yes" ]]; then
    # Extract all available locales that end with UTF-8
    var_locales_available=($(grep -oP '^[^#]*?\.UTF-8' /usr/share/i18n/SUPPORTED))
    # Add all available locales to a selection menu
    PS3=$'\n'"Please input the number of your desired locale: "
    select var_locale_selected in "${var_locales_available[@]}"; do
      if [[ " ${var_locales_available[@]} " =~ " ${var_locale_selected} " ]]; then
        echo
        echo "Selected Locale: ${var_locale_selected}"
        echo
        echo "LC_ALL=${var_locale_selected}" > /etc/environment
        echo "${var_locale_selected} UTF-8" > /etc/locale.gen
        echo "LANG=${var_locale_selected}" > /etc/locale.conf
        locale-gen
        break
      else
        echo "Invalid selection. Please try again."
        echo "To display the list of locales again leave the input blank and press ENTER."
      fi
    done
    break
  elif [[ "${REPLY,,}" == "n" || "${REPLY,,}" == "no" ]]; then
    echo "The default ($var_locale_default) will be used."
    var_locale_selected="$var_locale_default"
    echo
    echo "LC_ALL=${var_locale_selected}" > /etc/environment
    echo "${var_locale_selected} UTF-8" > /etc/locale.gen
    echo "LANG=${var_locale_selected}" > /etc/locale.conf
    locale-gen
    break
  else
    echo 'Invalid input. Please enter "yes" or "no".'
    echo
  fi
done
echo
echo
echo
echo

echo "Configuring Pacman..."
echo "====================="
echo
echo 'Getting latest mirrors from "https://archlinux.org/mirrorlist/all/https/"...'
curl -s 'https://archlinux.org/mirrorlist/all/https/' | sed -n '/^## Worldwide$/,/^$/p' | sed '/^$/d' | sed 's/^#Server/Server/' >| /etc/pacman.d/mirrorlist
echo
echo 'Disabling extraction of "mirrorlist.pacnew"...'
sed -i 's@^#NoExtract   =@NoExtract   = etc/pacman.conf etc/pacman.d/mirrorlist@' /etc/pacman.conf
echo
echo "Enabling parallel downloads..."
sed -i 's/^#ParallelDownloads = 5/ParallelDownloads = 10/' /etc/pacman.conf
echo
echo "Initializing, populating and updating keyring..."
echo
pacman-key --init
pacman-key --populate archlinux
pacman -Sy --noconfirm archlinux-keyring
echo
echo
echo
echo

echo "Updating system"
echo "==============="
echo
pacman -Su --noconfirm
echo
echo
echo
echo

echo "Configuring Pacman Reflector"
echo "============================"
echo
pacman -S --needed --noconfirm reflector
echo
echo "" > /etc/xdg/reflector/reflector.conf
echo "--age 12" >> /etc/xdg/reflector/reflector.conf
echo "--country $reflector_country" >> /etc/xdg/reflector/reflector.conf
echo "--latest 10" >> /etc/xdg/reflector/reflector.conf
echo "--protocol https" >> /etc/xdg/reflector/reflector.conf
echo "--save /etc/pacman.d/mirrorlist" >> /etc/xdg/reflector/reflector.conf
echo "--sort rate" >> /etc/xdg/reflector/reflector.conf
systemctl enable reflector.timer
echo "Generating new mirrorlist using Reflector..."
systemctl restart reflector.service
echo
cat /etc/pacman.d/mirrorlist
echo
echo
echo
echo
echo "Configuring SSH..."
echo "=================="
echo
echo "Generating SSH keys..."
ssh-keygen -t rsa -b 4096 -f ~/.ssh/id_rsa -N ""
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
echo
echo "Installing OpenSSH..."
pacman -S --noconfirm openssh
echo
echo "Configuring SSH daemon..."
sed -i 's/^#PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config
sed -i 's/^#PasswordAuthentication.*/PasswordAuthentication no/' /etc/ssh/sshd_config
echo
echo "Restarting and enabling SSH service..."
systemctl restart sshd
systemctl enable sshd
echo
echo
echo "To connect to this server, use the following command:"
echo "ssh root@$(hostname -I | awk '{print $1}')"
echo
echo
echo "Rebooting system..."
echo "==================="
echo "The initial configuration of your Arch Linux LXC is complete."
echo
read -p "Press ENTER to reboot"
reboot