From 4198d07804f17b99f811a1a3e8ec18ad24172f16 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Sun, 17 Jul 2016 18:14:48 +0200
Subject: Adding host system based overlay mounts.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 lib/container/create | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

(limited to 'lib/container/create')

diff --git a/lib/container/create b/lib/container/create
index 8080ffa..d1ef901 100755
--- a/lib/container/create
+++ b/lib/container/create
@@ -26,7 +26,7 @@ SCRIPTS="/usr/share/container-tools/scripts"
 
 Parameters ()
 {
-	LONG_OPTIONS="name:,cnt.auto:,bind:,capability:,drop-capability:script:,"
+	LONG_OPTIONS="name:,cnt.auto:,cnt.overlay:,bind:,capability:,drop-capability:script:,"
 	OPTIONS="n:,b:,c:,d:,s:,"
 
 	PARAMETERS="$(getopt --longoptions ${LONG_OPTIONS} --name=${COMMAND} --options ${OPTIONS} --shell sh -- ${@})"
@@ -52,6 +52,11 @@ Parameters ()
 				shift 2
 				;;
 
+			--cnt.overlay)
+				CNT_OVERLAY="${2}"
+				shift 2
+				;;
+
 			-b|--bind)
 				BIND="${2}"
 				shift 2
@@ -87,7 +92,7 @@ Parameters ()
 
 Usage ()
 {
-	echo "Usage: container ${COMMAND} -n|--name NAME [--cnt.auto=true|false|FQDN] [-b|--bind DIRECTORY:DIRECTORY[:OPTIONS]] [-c|--capability CAPABILITY[,CAPABILITY]] [-d|--drop-capability DROP_CAPABILITY[,DROP_CAPABILITY]] [-s|--script SCRIPT] [-- SCRIPT_OPTIONS]" >&2
+	echo "Usage: container ${COMMAND} -n|--name NAME [--cnt.auto=true|false|FQDN] [--cnt.overlay=DIRECTORY_LOWER:DIRECTORY_UPPER:DIRECTORY_WORK:DIRECTORY_MERGED] [-b|--bind DIRECTORY:DIRECTORY[:OPTIONS]] [-c|--capability CAPABILITY[,CAPABILITY]] [-d|--drop-capability DROP_CAPABILITY[,DROP_CAPABILITY]] [-s|--script SCRIPT] [-- SCRIPT_OPTIONS]" >&2
 	exit 1
 }
 
@@ -149,11 +154,31 @@ then
 	done
 fi
 
+# Creating overlay mounts
+if [ -n "${CNT_OVERLAY}" ]
+then
+	CNT_OVERLAYS="$(echo ${CNT_OVERLAY} | sed -e 's|;| |g')"
+
+	for CNT_OVERLAY in ${CNT_OVERLAYS}
+	do
+		DIRECTORY_LOWER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $1 }')"
+		DIRECTORY_UPPER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $2 }')"
+		DIRECTORY_WORK="$(echo ${CNT_OVERLAY} | awk -F: '{ print $3 }')"
+		DIRECTORY_MERGED="$(echo ${CNT_OVERLAY} | awk -F: '{ print $4 }')"
+
+		for DIRECTORY in "${DIRECTORY_LOWER}" "${DIRECTORY_UPPER}" "${DIRECTORY_WORK}" "${DIRECTORY_MERGED}"
+		do
+			mkdir -p "${DIRECTORY}"
+		done
+	done
+fi
+
 # config
 mkdir -p "${CONFIG}"
 
 sed	-e "s|@CNT_AUTO@|${CNT_AUTO}|g" \
 	-e "s|@CNT_NETWORK_BRIDGE@|${CNT_NETWORK_BRIDGE}|g" \
+	-e "s|@CNT_OVERLAY@|${CNT_OVERLAY}|g" \
 	-e "s|@NAME@|${NAME}|g" \
 	-e "s|@BIND@|${BIND}|g" \
 	-e "s|@BOOT@|yes|g" \
-- 
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