dracut-sshd-networkmanager subpackage

  99sshd-auto-networkmanager adjusts nm-initrd.service to run for dracut-sshd.
- If config is lacking auto DHCP ethernet in the same manner as rootfs NetworkManager.
- Clean network teardown prior to switchroot avoids conflicts and gives OS full control.
- Settings could be overriden by copying ifcfg or nmconnection settings into the initrd.

Fixes: Issues gsauthof#63 gsauthof#68
Signed-off-by: Warren Togami <[email protected]>

99sshd-networkmanager/module-setup.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# 2023, Warren Togami <[email protected]>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# called by dracut
+check() {
+    require_binaries sshd || return 1
+    # 0 enables by default, 255 only on request
+    return 0
+}
+
+# called by dracut
+depends() {
+    return 0
+}
+
+# called by dracut
+install() {
+    # allow NetworkManager to auto configure "Wired connection #" DHCP connections for Ethernet interfaces
+    rm -f  "$initdir/usr/lib/NetworkManager/conf.d/initrd-no-auto-default.conf"
+
+    # tell Networkmanager to run
+    echo "rd.neednet" >> "${initdir}/etc/cmdline.d/50neednet.conf"
+    return 0
+}

dracut-sshd.spec

@@ -20,6 +20,21 @@ initramfs. It allows for remote unlocking of a fully encrypted
 root filesystem and remote access to the Dracut emergency shell
 (i.e. early userspace).
 
+%package networkmanager
+Summary:    Enables NetworkManager for sshd during initramfs
+Requires:   dracut-sshd
+Requires:   NetworkManager
+
+%description networkmanager
+This module enables dracut network-manager settings for dracut-sshd.
+
+- If no configuration is provided it uses DHCP to bring up ethernet
+  in the same manner as rootfs NetworkManager.
+- Cleanly tears down networking prior to switchroot to avoid conflicts
+  thereby allowing the OS full control of networking config.
+- Network settings could be overriden by copying ifcfg or nmconnection
+  settings into the initrd. e.g. static IP's
+
 %prep
 {{{ git_dir_setup_macro }}}
 
@@ -30,6 +45,7 @@ root filesystem and remote access to the Dracut emergency shell
 mkdir -p %{buildroot}/usr/lib/dracut/modules.d
 cp -r 46sshd %{buildroot}/usr/lib/dracut/modules.d/
 cp -r 99sshd-shadow-fixup %{buildroot}/usr/lib/dracut/modules.d/
+cp -r 99sshd-networkmanager %{buildroot}/usr/lib/dracut/modules.d/
 
 %files
 %dir /usr/lib/dracut/modules.d/46sshd/
@@ -43,6 +59,9 @@ cp -r 99sshd-shadow-fixup %{buildroot}/usr/lib/dracut/modules.d/
 %doc example/20-wired.network
 %doc example/90-networkd.conf
 
+%files networkmanager
+/usr/lib/dracut/modules.d/99sshd-networkmanager/module-setup.sh
+
 %changelog
 * Sat May 27 2023 Georg Sauthoff <[email protected]> - 0.6.5-1
 - eliminate tmpfiles and fix Debian/Ubuntu support