From 46a26c5d6b56a95f4748ee35ecc07b58e1481d24 Mon Sep 17 00:00:00 2001
From: Itxaka <itxaka@kairos.io>
Date: Mon, 9 Oct 2023 16:03:19 +0200
Subject: [PATCH] [POC] Use a single network dracut package

Signed-off-by: Itxaka <itxaka@kairos.io>
---
 Earthfile                      |  3 +++
 framework-profile.yaml         | 24 --------------------
 kairos-network/module-setup.sh | 40 ++++++++++++++++++++++++++++++++++
 net.conf                       |  2 ++
 4 files changed, 45 insertions(+), 24 deletions(-)
 create mode 100644 kairos-network/module-setup.sh
 create mode 100644 net.conf

diff --git a/Earthfile b/Earthfile
index b22b8c808..3dc1d7774 100644
--- a/Earthfile
+++ b/Earthfile
@@ -281,6 +281,9 @@ framework:
         END
     END
 
+    COPY kairos-network /framework/usr/lib/dracut/modules.d/29kairos-network
+    RUN mkdir -p /framework/etc/dracut.conf.d
+    COPY net.conf /framework/etc/dracut.conf.d/10-kairos-network.conf
     SAVE ARTIFACT --keep-own /framework/ framework
 
 build-framework-image:
diff --git a/framework-profile.yaml b/framework-profile.yaml
index 300d6c23b..2d2c2c8ed 100755
--- a/framework-profile.yaml
+++ b/framework-profile.yaml
@@ -11,91 +11,74 @@ flavors:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy
   debian-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy
   ubuntu:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy
   ubuntu-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy
   ubuntu-20-lts-arm-nvidia-jetson-agx-orin:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   ubuntu-20-lts-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   ubuntu-22-lts-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   ubuntu-22-lts:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   ubuntu-20-lts:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   fips-systemd:
     - common-packages
     - kairos-toolchain-fips
     - systemd-base
-    - dracut-network-legacy-compat
   fedora:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   rockylinux:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   almalinux:
     - common-packages
     - kairos-toolchain
     - systemd-base
-    - dracut-network-legacy-compat
   opensuse-tumbleweed:
     - common-packages
     - kairos-toolchain
     - systemd-base
     - systemd-latest
-    - dracut-network-legacy
   opensuse-tumbleweed-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
     - systemd-latest
-    - dracut-network-legacy
   opensuse-leap:
     - common-packages
     - kairos-toolchain
     - systemd-base
     - systemd-latest
-    - dracut-network-legacy
   opensuse-leap-arm-rpi:
     - common-packages
     - kairos-toolchain
     - systemd-base
     - systemd-latest
-    - dracut-network-legacy
   alpine-arm-rpi:
     - common-packages
     - kairos-toolchain
@@ -111,13 +94,6 @@ flavors:
     - kairos-toolchain
     - ubuntu-kernel
     - openrc
-# See https://github.com/kairos-io/packages/pull/67 for rationale
-dracut-network-legacy:
-  packages:
-    - dracut/network-legacy
-dracut-network-legacy-compat:
-  packages:
-    - dracut/network-legacy-compat
 openrc:
   packages:
     - init-svc/openrc
diff --git a/kairos-network/module-setup.sh b/kairos-network/module-setup.sh
new file mode 100644
index 000000000..14f9644b6
--- /dev/null
+++ b/kairos-network/module-setup.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# This module selects the proper network module to be used by dracut
+# while avoiding using systemd-networkd
+
+# called by dracut
+check() {
+    return 255
+}
+
+# called by dracut
+depends() {
+    is_qemu_virtualized && echo -n "qemu-net "
+
+    for module in network network-legacy; do
+        if dracut_module_included "$module"; then
+            network_handler="$module"
+            break
+        fi
+    done
+
+    if [ -z "$network_handler" ]; then
+        if check_module "network-legacy"; then
+            network_handler="network-legacy"
+        else
+            network_handler="network"
+        fi
+    fi
+    echo "kernel-network-modules $network_handler"
+    return 0
+}
+
+# called by dracut
+installkernel() {
+    return 0
+}
+
+# called by dracut
+install() {
+    dracut_need_initqueue
+}
diff --git a/net.conf b/net.conf
new file mode 100644
index 000000000..082840272
--- /dev/null
+++ b/net.conf
@@ -0,0 +1,2 @@
+omit_dracutmodules+=" systemd-networkd "
+add_dracutmodules+=" kairos-network "
\ No newline at end of file