Add datacenter node setup scripts (#5517)

automerge

net/datacenter-node-install/disable-nouveau.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+HERE="$(dirname "$0")"
+
+# shellcheck source=net/datacenter-node-install/utils.sh
+source "$HERE"/utils.sh
+
+ensure_env || exit 1
+
+cat <<EOF > /etc/modprobe.d/blacklist-nouveau.conf
+blacklist nouveau
+options nouveau modeset=0
+EOF
+
+update-initramfs -u