feat(shell): add prepare server script

begin with a new script for setup the basic structure of my servers, who tf needs ansible if we got sh

shell/scripts/prepareServer.sh

@@ -0,0 +1,108 @@
+#! /usr/bin/env sh
+
+while [ $# -gt 0 ]; do
+	case "$1" in
+		--dry-run)
+			DRY_RUN=1
+			shift
+		;;
+		--*)
+			echo "Illegal Operation"
+		;;
+	esac
+done
+
+is_dry_run() {
+	if [ -z "$DRY_RUN" ]; then
+		return 1
+	else 
+		return 0
+	fi
+}
+
+command_exists() {
+	command -v "$@" > /dev/null 2>&1
+}
+
+
+check_distro() {
+	distro=""
+	if [ -r /etc/os-release ]; then
+		distro="$(. /etc/os-release && echo "$ID")"
+	fi
+	echo "$distro"
+}
+
+detect_debian_version() {
+	version=""
+	vers_num="$(sed 's/\/.*//' /etc/debian_version | sed 's/\..*//')"
+	case "$vers_num" in
+		12 | trixie)
+			version="bookworm"
+		;;
+		11)
+			version="bullseye"
+		;;
+		10)
+			version="buster"
+		;;
+		9)
+			version="stretch"
+		;;
+		8)
+			version="jessie"
+		;;
+		esac
+		echo "$version"
+}
+
+exec_command() {
+	uid="$(id -u 2>/dev/null || true)"
+	sh_c="sh -c"
+	if [ "$uid" != 0 ]; then
+		if command_exists sudo; then
+			sh_c="sudo -E sh -c"
+		elif command_exists su; then
+			sh_c="su -c"
+		else
+			cat >&2 <<-'EOF'
+			Error: no method for command elevation found, but thats needed for this setup script
+			EOF
+			exit 1
+		fi
+	fi
+	if is_dry_run; then
+		sh_c="echo"
+	fi
+	echo $sh_c
+}
+
+install_apt() {
+	pre_reqs="apt-transport-https ca-certificates curl"
+	apt_repo="deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] $download_url/linux/$distro $version $channel"
+	(
+		if ! is_dry_run; then
+			set -x
+		fi
+		$sh_c 'apt-get update -qq >/dev/null'
+	)
+}
+
+install() {
+	sh_c="$(exec_command)"
+	distro="$( check_distro )"
+	version=""
+	channel="stable"
+	download_url="https://download.docker.com"
+	case "$distro" in
+		debian)
+			version="$( detect_debian_version )"
+			install_apt
+		;;
+		*)
+			echo "Sorry currently only debian is supported"
+	esac
+
+}
+
+install