From ded0021be3ed470a0498be5573cbf5622f51e9bc Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Fri, 27 Oct 2017 14:19:02 +0200
Subject: Making IP address automatic substitutions in preseed files for
 container debconf create script aware of multiple interfaces (FIXME).

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 share/scripts/debconf                          | 48 ++++++++++++++++----------
 share/scripts/debconf.d/0003-debconf           | 17 +++++++++
 share/scripts/debconf.d/0003-debconf.templates |  6 ++++
 3 files changed, 52 insertions(+), 19 deletions(-)

diff --git a/share/scripts/debconf b/share/scripts/debconf
index 619d84c..8e332c5 100755
--- a/share/scripts/debconf
+++ b/share/scripts/debconf
@@ -613,35 +613,45 @@ EOF
 
 	Upgrade_system "${DIRECTORY}"
 
+	if [ -e /usr/bin/kdig ]
+	then
+		DIG="/usr/bin/kdig"
+	elif [ -e /usr/bin/dig ]
+	then
+		DIG="/usr/bin/dig"
+	fi
+
 	# Preseed system
 	if [ -n "${PRESEED_FILE}" ]
 	then
 		for FILE in ${PRESEED_FILE}
 		do
-			if [ -e /usr/bin/kdig ]
-			then
-				DIG="/usr/bin/kdig"
-			elif [ -e /usr/bin/dig ]
-			then
-				DIG="/usr/bin/dig"
-			fi
+			cat "${FILE}" >> "${DIRECTORY}/preseed.cfg"
+		done
+
+		sed -i -e "s|@NAME@|${NAME}|g" "${DIRECTORY}/preseed.cfg"
 
+		NUMBER="1"
+
+		while grep -qs "@IPV4_ADDRESS${NUMBER}.*@" "${FILE}"
+		do
 			if [ -n "${DIG}" ]
 			then
-				IPV4_ADDRESS="$(${DIG} +short ${NAME} | tail -n1)"
-				IPV4_ADDRESS_PART1="$(echo ${IPV4_ADDRESS} | cut -d. -f1)"
-				IPV4_ADDRESS_PART2="$(echo ${IPV4_ADDRESS} | cut -d. -f2)"
-				IPV4_ADDRESS_PART3="$(echo ${IPV4_ADDRESS} | cut -d. -f3)"
-				IPV4_ADDRESS_PART4="$(echo ${IPV4_ADDRESS} | cut -d. -f4)"
+				eval IPV4_ADDRESS${NUMBER}="$(${DIG} +short ${NAME} | tail -n1)"
+				eval IPV4_ADDRESS${NUMBER}_PART1="$(echo $`echo IPV4_ADDRESS${NUMBER}` | cut -d. -f1)"
+				eval IPV4_ADDRESS${NUMBER}_PART2="$(echo $`echo IPV4_ADDRESS${NUMBER}` | cut -d. -f2)"
+				eval IPV4_ADDRESS${NUMBER}_PART3="$(echo $`echo IPV4_ADDRESS${NUMBER}` | cut -d. -f3)"
+				eval IPV4_ADDRESS${NUMBER}_PART4="$(echo $`echo IPV4_ADDRESS${NUMBER}` | cut -d. -f4)"
 			fi
 
-			sed -e "s|@NAME@|${NAME}|g" \
-			    -e "s|@IPV4_ADDRESS@|${IPV4_ADDRESS}|g" \
-			    -e "s|@IPV4_ADDRESS_PART1@|${IPV4_ADDRESS_PART1}|g" \
-			    -e "s|@IPV4_ADDRESS_PART2@|${IPV4_ADDRESS_PART2}|g" \
-			    -e "s|@IPV4_ADDRESS_PART3@|${IPV4_ADDRESS_PART3}|g" \
-			    -e "s|@IPV4_ADDRESS_PART4@|${IPV4_ADDRESS_PART4}|g" \
-			"${FILE}" >> "${DIRECTORY}/preseed.cfg"
+			sed -i	-e "s|@IPV4_ADDRESS${NUMBER}@|$`echo IPV4_ADDRESS${NUMBER}`|g" \
+				-e "s|@IPV4_ADDRESS${NUMBER}_PART1@|$`echo IPV4_ADDRESS${NUMBER}_PART1`|g" \
+				-e "s|@IPV4_ADDRESS${NUMBER}_PART2@|$`echo IPV4_ADDRESS${NUMBER}_PART2`|g" \
+				-e "s|@IPV4_ADDRESS${NUMBER}_PART3@|$`echo IPV4_ADDRESS${NUMBER}_PART3`|g" \
+				-e "s|@IPV4_ADDRESS${NUMBER}_PART4@|$`echo IPV4_ADDRESS${NUMBER}_PART4`|g" \
+			"${DIRECTORY}/preseed.cfg"
+
+			NUMBER="$((${NUMBER} + 1))"
 		done
 
 		Chroot "${DIRECTORY}" "debconf-set-selections preseed.cfg"
diff --git a/share/scripts/debconf.d/0003-debconf b/share/scripts/debconf.d/0003-debconf
index 1773b09..0eed489 100755
--- a/share/scripts/debconf.d/0003-debconf
+++ b/share/scripts/debconf.d/0003-debconf
@@ -716,6 +716,9 @@ Network_defaults ()
 
 Network ()
 {
+	db_get cnt-debconf/network1/dnsname
+	NETWORK1_DNSNAME="${RET}" # string (w/ empty)
+
 	db_get cnt-debconf/network1/bridge
 	NETWORK1_BRIDGE="${RET}" # string (w/o empty)
 
@@ -757,6 +760,9 @@ Network ()
 
 	Network_defaults
 
+	db_set cnt-debconf/network1/dnsname "${NETWORK1_DNSNAME}"
+	db_fset cnt-debconf/network1/dnsname seen false
+
 	db_set cnt-debconf/network1/bridge "${NETWORK1_BRIDGE}"
 	db_fset cnt-debconf/network1/bridge seen false
 
@@ -800,6 +806,9 @@ Network ()
 	db_input high cnt-debconf/network1/ipv4-method || true
 	db_go
 
+	db_get cnt-debconf/network1/dnsname
+	NETWORK1_DNSNAME="${RET}" # string
+
 	db_get cnt-debconf/network1/bridge
 	NETWORK1_BRIDGE="${RET}" # select
 
@@ -848,6 +857,11 @@ Network ()
 
 	while db_get cnt-debconf/network${NUMBER}/ipv4-method && [ "${RET}" ]
 	do
+		if db_get cnt-debconf/network${NUMBER}/dnsname
+		then
+			eval NETWORK${NUMBER}_DNSNAME="\"${RET}\"" # string (w/ empty)
+		fi
+
 		if db_get cnt-debconf/network${NUMBER}/bridge
 		then
 			eval NETWORK${NUMBER}_BRIDGE="\"${RET}\"" # string (w/o empty)
@@ -916,6 +930,9 @@ Network ()
 
 	for NUMBER in $(seq 1 ${NETWORK_NUMBER})
 	do
+		eval DNSNAME="$`echo NETWORK${NUMBER}_DNSNAME`"
+		echo "NETWORK${NUMBER}_DNSNAME=\"${DNSNAME}\"" >> "${DEBCONF_TMPDIR}/debconf.default"
+
 		eval BRIDGE="$`echo NETWORK${NUMBER}_BRIDGE`"
 		echo "NETWORK${NUMBER}_BRIDGE=\"${BRIDGE}\"" >> "${DEBCONF_TMPDIR}/debconf.default"
 
diff --git a/share/scripts/debconf.d/0003-debconf.templates b/share/scripts/debconf.d/0003-debconf.templates
index e3dbc24..96b5e7d 100644
--- a/share/scripts/debconf.d/0003-debconf.templates
+++ b/share/scripts/debconf.d/0003-debconf.templates
@@ -100,6 +100,12 @@ Default:
 Description: Root password
  Root password.
 
+Template: cnt-debconf/network1/dnsname
+Type: string
+Default:
+Description: DNS name.
+ DNS name.
+
 Template: cnt-debconf/network1/bridge
 Type: string
 Default:
-- 
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