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authorDaniel Baumann <daniel.baumann@open-infrastructure.net>2016-07-17 16:14:48 +0000
committerDaniel Baumann <daniel.baumann@open-infrastructure.net>2016-08-04 13:35:54 +0000
commit4198d07804f17b99f811a1a3e8ec18ad24172f16 (patch)
treef3741d448459b895dab66b5bef1e6b5682e7fe14 /lib/container
parentChanging container-status command to always show full output. (diff)
downloadcompute-tools-4198d07804f17b99f811a1a3e8ec18ad24172f16.tar.xz
compute-tools-4198d07804f17b99f811a1a3e8ec18ad24172f16.zip
Adding host system based overlay mounts.
Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Diffstat (limited to '')
-rwxr-xr-xlib/container/create29
-rwxr-xr-xlib/container/start25
-rwxr-xr-xlib/container/stop23
3 files changed, 75 insertions, 2 deletions
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" \
diff --git a/lib/container/start b/lib/container/start
index a4dc033..d5bbbf4 100755
--- a/lib/container/start
+++ b/lib/container/start
@@ -139,6 +139,31 @@ esac
# config
if [ -e "${CONFIG}/${NAME}.conf" ]
then
+ CNT_OVERLAY="$(awk -F= '/^cnt.overlay=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ 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
+
+ if ! findmnt -n -o SOURCE "${DIRECTORY_MERGED}" | grep -qs '^cnt.overlay-'
+ then
+ mount cnt.overlay-${NAME} -t overlay -olowerdir="${DIRECTORY_LOWER}",upperdir="${DIRECTORY_UPPER}",workdir="${DIRECTORY_WORK}",default_permissions "${DIRECTORY_MERGED}"
+ fi
+ done
+ fi
+
BIND="$(awk -F= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BIND}" ]
diff --git a/lib/container/stop b/lib/container/stop
index dc78f05..ec24d51 100755
--- a/lib/container/stop
+++ b/lib/container/stop
@@ -94,6 +94,29 @@ STATE="$(machinectl show ${NAME} 2>&1 | awk -F= '/^State=/ { print $2 }')"
case "${CLEAN}" in
true)
+ # Removing overlay mounts
+ CNT_OVERLAY="$(awk -F= '/^cnt.overlay=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ 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 $4 }')"
+
+ umount -f "${DIRECTORY_MERGED}"
+
+ for DIRECTORY in "${DIRECTORY_LOWER}" "${DIRECTORY_UPPER}" "${DIRECTORY_WORK}" "${DIRECTORY_MERGED}"
+ do
+ rmdir --ignore-fail-on-non-empty --parents ${DIRECTORY} > /dev/null 2>&1 || true
+ done
+ done
+ fi
+
# Removing bind mounts
BIND="$(awk -F= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"