From 46881aaa4bb0380f1273931fdac3b8b94bd0758a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Sat, 4 Jun 2022 07:04:30 +0200
Subject: Adding new 'stub' network interface method in debconf build-script,
 thanks to Sakirnth Nagarasa <sakirnth@gmail.com> for the use-case and idea.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 share/build-scripts/debconf                        | 17 +++++++++++++
 share/build-scripts/debconf.d/0003-debconf         | 28 ++++++++++++++++++++++
 .../build-scripts/debconf.d/0003-debconf.templates |  4 ++--
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/share/build-scripts/debconf b/share/build-scripts/debconf
index 1689a79..ac5f9cd 100755
--- a/share/build-scripts/debconf
+++ b/share/build-scripts/debconf
@@ -880,6 +880,14 @@ EOF
 
 					fi
 					;;
+
+				stub)
+
+cat >> "${DIRECTORY}/etc/systemd/network/eno${NUMBER}.network" << EOF
+DHCP=no
+EOF
+
+					;;
 			esac
 
 			if [ -n "${IPV4_POST_UP}" ]
@@ -962,6 +970,15 @@ EOF
 
 					fi
 					;;
+
+				stub)
+
+cat >> "${DIRECTORY}/etc/systemd/network/eno${NUMBER}.network" << EOF
+DHCP=no
+IPv6AcceptRA=no
+EOF
+
+					;;
 			esac
 
 			if [ -n "${IPV6_POST_UP}" ]
diff --git a/share/build-scripts/debconf.d/0003-debconf b/share/build-scripts/debconf.d/0003-debconf
index 2b0ea76..d428228 100755
--- a/share/build-scripts/debconf.d/0003-debconf
+++ b/share/build-scripts/debconf.d/0003-debconf
@@ -864,6 +864,20 @@ Network ()
 			db_input high container/network1/ipv4-post-up || true
 			db_go
 
+			db_settitle container/title
+			db_input high container/network1/ipv4-post-down || true
+			db_go
+			;;
+
+		stub)
+			db_settitle container/title
+			db_input high container/network1/ipv4-comment || true
+			db_go
+
+			db_settitle container/title
+			db_input high container/network1/ipv4-post-up || true
+			db_go
+
 			db_settitle container/title
 			db_input high container/network1/ipv4-post-down || true
 			db_go
@@ -902,6 +916,20 @@ Network ()
 			db_input high container/network1/ipv6-post-up || true
 			db_go
 
+			db_settitle container/title
+			db_input high container/network1/ipv6-post-down || true
+			db_go
+			;;
+
+		stub)
+			db_settitle container/title
+			db_input high container/network1/ipv6-comment || true
+			db_go
+
+			db_settitle container/title
+			db_input high container/network1/ipv6-post-up || true
+			db_go
+
 			db_settitle container/title
 			db_input high container/network1/ipv6-post-down || true
 			db_go
diff --git a/share/build-scripts/debconf.d/0003-debconf.templates b/share/build-scripts/debconf.d/0003-debconf.templates
index 2172e67..098acd1 100644
--- a/share/build-scripts/debconf.d/0003-debconf.templates
+++ b/share/build-scripts/debconf.d/0003-debconf.templates
@@ -112,7 +112,7 @@ Description: Veth name
 
 Template: container/network1/ipv4-method
 Type: select
-Choices: dhcp, static, none
+Choices: dhcp, static, stub, none
 Default:
 Description: Ethernet Interface Method (IPv4)?
  What method should be used to configure the ethernet interface?
@@ -173,7 +173,7 @@ Description: Ethernet post-down Command (IPv4)?
 
 Template: container/network1/ipv6-method
 Type: select
-Choices: dhcp, static, none
+Choices: dhcp, static, stub, none
 Default:
 Description: Ethernet Interface Method (IPv6)?
  What method should be used to configure the ethernet interface?
-- 
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