Adding upstream version 20161210.upstream/20161210

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

13 files changed, 484 insertions, 39 deletions

diff --git a/lib/container/auto b/lib/container/auto
index eb23f87..969ce0a 100755
--- a/lib/container/auto
+++ b/lib/container/auto
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 
 Parameters ()
 {
@@ -78,6 +79,15 @@ fi
 
 HOST="$(hostname -f)"
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 for FILE in "${CONFIG}"/*.conf
 do
@@ -88,3 +98,12 @@ do
 		cnt ${ACTION} -n ${CONTAINER} || true
 	fi
 done
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/console b/lib/container/console
index ab3dfaf..fbf3c2d 100755
--- a/lib/container/console
+++ b/lib/container/console
@@ -20,6 +20,7 @@ set -e
 
 COMMAND="$(basename ${0})"
 
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -89,5 +90,23 @@ case "${STATE}" in
 		;;
 esac
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 machinectl login ${NAME}
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/create b/lib/container/create
index cd3a455..1e855ef 100755
--- a/lib/container/create
+++ b/lib/container/create
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 SCRIPTS="/usr/share/container-tools/scripts"
 
@@ -141,6 +142,15 @@ fi
 
 CNT_AUTO="${CNT_AUTO:-$(hostname -f)}"
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Creating bind mounts
 if [ -n "${BIND}" ]
 then
@@ -194,3 +204,12 @@ sed	-e "s|@CNT_AUTO@|${CNT_AUTO}|g" \
 
 # Run
 "${SCRIPTS}/${SCRIPT}" $(echo "${@}" | sed -e 's| -- | |')
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/enter b/lib/container/enter
index 6023d92..4bcd5c6 100755
--- a/lib/container/enter
+++ b/lib/container/enter
@@ -20,6 +20,7 @@ set -e
 
 COMMAND="$(basename ${0})"
 
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -91,6 +92,15 @@ esac
 
 LEADER="$(machinectl status ${NAME} | awk '/Leader: / { print $2 }')"
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 if [ -e "${MACHINES}/${NAME}/usr/bin/container-nsenter" ]
 then
@@ -100,3 +110,12 @@ else
 fi
 
 nsenter --target ${LEADER} --mount --uts --ipc --net --pid --root --wd=/root ${OPTIONS}
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/limit b/lib/container/limit
index a9882c9..d2a193a 100755
--- a/lib/container/limit
+++ b/lib/container/limit
@@ -20,6 +20,7 @@ set -e
 
 COMMAND="$(basename ${0})"
 
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -182,5 +183,23 @@ then
 	Usage
 fi
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 systemctl --runtime set-property ${NAME} ${BLOCK_IO_DEVICE_WEIGHT} ${BLOCK_IO_READ_BANDWITH} ${BLOCK_IO_WEIGHT} ${BLOCK_IO_WRITE_BANDWITH} ${CPU_QUOTA} ${CPU_SHARES} ${MEMORY_LIMIT} ${TASKS_MAX}
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/list b/lib/container/list
index 3c23c24..f9f46fb 100755
--- a/lib/container/list
+++ b/lib/container/list
@@ -21,11 +21,14 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
+VERSION="$(container version)"
+
 Parameters ()
 {
-	GETOPT_LONGOPTIONS="all,format:,host:,other,started,stopped,"
+	GETOPT_LONGOPTIONS="all,csv-separator:,format:,host:,nwdiag-color:,nwdiag-label:,other,started,stopped,"
 	GETOPT_OPTIONS="a,f:,h:,o,s,t,"
 
 	PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${COMMAND} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
@@ -46,6 +49,11 @@ Parameters ()
 				shift 1
 				;;
 
+			--csv-separator)
+				CSV_SEPARATOR="${2}"
+				shift 2
+				;;
+
 			-f|--format)
 				FORMAT="${2}"
 				shift 2
@@ -56,6 +64,16 @@ Parameters ()
 				shift 2
 				;;
 
+			--nwdiag-color)
+				NWDIAG_COLOR="${2}"
+				shift 2
+				;;
+
+			--nwdiag-label)
+				NWDIAG_LABEL="${2}"
+				shift 2
+				;;
+
 			-o|--other)
 				LIST="${LIST} other"
 				shift 1
@@ -86,19 +104,116 @@ Parameters ()
 
 Usage ()
 {
-	echo "Usage: container ${COMMAND} -a|--all --format FORMAT -s|--started -t|--stopped" >&2
+	echo "Usage: container ${COMMAND} [-a|--all] [--csv-separator SEPARATOR] [--format FORMAT] [-h|--host HOSTNAME] [--nwdiag-color COLOR] [--nwdiag-label LABEL] [-o|--other] [-s|--started] [-t|--stopped]" >&2
 	exit 1
 }
 
 Parameters "${@}"
 
 LIST="${LIST:-started stopped}"
-FORMAT="${FORMAT:-full}"
+FORMAT="${FORMAT:-cli}"
 HOST="${HOST:-$(hostname -f)}"
 
+CSV_SEPARATOR="${CSV_SEPARATOR:-,}"
+
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
+List ()
+{
+	case "${FORMAT}" in
+		cli)
+			printf "%-80s %-29s\n" "${STATUS} ${BLUE}${CONTAINER}${NORMAL}" "${YELLOW}${ADDRESS}${NORMAL}"
+			;;
+
+		csv)
+			echo "${HOST}${CSV_SEPARATOR}${CONTAINER}${CSV_SEPARATOR}${STATE}${CSV_SEPARATOR}${ADDRESS}"
+			;;
+
+		json)
+
+cat << EOF
+    {
+      "name": "${CONTAINER}",
+      "status": "${STATE}",
+      "ipv4Address": "${ADDRESS}",
+    },
+EOF
+
+			;;
+
+		nwdiag)
+			Nwdiag_width "${CONTAINER}"
+
+			case "${STATE}" in
+				started)
+					COLOR="#73d216"
+					;;
+
+				stopped)
+					COLOR="#cc0000"
+					;;
+
+				other)
+					COLOR="#d3d7cf"
+					;;
+			esac
+
+			echo "    ${CONTAINER} [address = \"${ADDRESS}\", color = \"${COLOR}\", shape = \"flowchart.terminator\", width = \"${WIDTH}\"];"
+			;;
+
+		shell)
+			echo "${CONTAINER}"
+			;;
+
+		yaml)
+
+cat << EOF
+    - name:          ${CONTAINER}
+      ipv4_address:  ${ADDRESS}
+EOF
+
+			;;
+
+		xml)
+
+cat << EOF
+  <container>
+    <name>${CONTAINER}</name>
+    <ipv4Address>${ADDRESS}</ipv4Address>
+  </container>
+EOF
+
+			;;
+	esac
+}
+
+Nwdiag_width ()
+{
+	NAME="${1}"
+
+	CHARACTERS="$(echo "${NAME}" | wc -c)"
+
+	if [ "${CHARACTERS}" -gt 13 ]
+	then
+		# default width is 128 fitting 13 characters
+		WIDTH="$(( ${CHARACTERS} - 13 ))"
+		WIDTH="$(( ${WIDTH} * 5 ))"
+		WIDTH="$(( ${WIDTH} + 128 ))"
+	else
+		WIDTH="128"
+	fi
+}
+
 case "${FORMAT}" in
-	full)
+	cli)
 		RED="$(tput setaf 1)$(tput bold)"
 		GREEN="$(tput setaf 2)$(tput bold)"
 		YELLOW="$(tput setaf 3)$(tput bold)"
@@ -113,36 +228,95 @@ EOF
 
 		;;
 
-	short)
+	csv)
+
+cat << EOF
+# container-tools version ${VERSION}
+Host${CSV_SEPARATOR}Container${CSV_SEPARATOR}Status${CSV_SEPARATOR}IPv4-Address
+EOF
+
 		;;
-esac
 
-Show ()
+	json)
+
+cat << EOF
 {
-	case "${FORMAT}" in
-		short)
-			printf "${CONTAINER}\n"
-			;;
+  "container-tools": {
+    "version": "${VERSION}",
+  },
+  "host": {
+    "name": "${HOST}",
+  },
+  "container": [
+EOF
 
-		full)
-			FIRST_LINE="true"
-
-			for ADDRESS in ${ADDRESSES}
-			do
-				case "${FIRST_LINE}" in
-					true)
-						FIRST_LINE="false"
-						printf "%-80s %-29s\n" "${STATUS} ${BLUE}${CONTAINER}${NORMAL}" "${YELLOW}${ADDRESS}${NORMAL}"
-						;;
-
-					*)
-						printf "%-80s %-29s\n" "" "${ADDRESS}"
-						;;
-				esac
-			done
-			;;
-	esac
-}
+		;;
+
+	nwdiag)
+		NETWORK="$(echo ${HOST} | sed -e 's|\.|_|g')"
+
+cat << EOF
+# container-tools ${VERSION}
+nwdiag {
+  external_connector = none;
+  network ${NETWORK} {
+EOF
+
+	if [ -n "${NWDIAG_LABEL}" ]
+	then
+		echo "    label = \"${NWDIAG_LABEL}\""
+	else
+		echo "    label = \"\""
+	fi
+
+	NUMBER="$(${0} --format=short | wc -l)"
+
+	if [ -n "${NWDIAG_COLOR}" ]
+	then
+		COLOR="${NWDIAG_COLOR}"
+	else
+		COLOR="#3465a4"
+	fi
+
+	Nwdiag_width "${HOST}"
+
+cat << EOF
+    # host
+    ${HOST} [color = "${COLOR}", shape = "box", numbered = "${NUMBER}", width = "${WIDTH}"];
+    # container
+EOF
+
+		;;
+
+	yaml)
+
+cat << EOF
+---
+container_tools:
+    version:  ${VERSION}
+
+host:
+    name:  ${HOST}
+
+container:
+EOF
+
+		;;
+
+	xml)
+
+cat << EOF
+<container-tools>
+  <version>${VERSION}</version>
+</container-tools>
+<host>
+  <name>${HOST}</name>
+</host>
+<containers>
+EOF
+
+		;;
+esac
 
 CONTAINERS="$(cd "${MACHINES}" 2>/dev/null && find -maxdepth 1 -type d -and -not -name '.container-tools' -and -not -name 'container-tools' -and -not -name 'lost+found' -and -not -name '.snap' -and -not -name '.snapshot' -printf '%P\n' | sort)"
 
@@ -183,21 +357,21 @@ do
 			;;
 	esac
 
-	ADDRESSES=""
+	ADDRESS=""
 
 	if ls "${MACHINES}/${CONTAINER}/etc/systemd/network"/*.network > /dev/null 2>&1
 	then
-		ADDRESSES="$(awk -F= '/Address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/systemd/network/*.network)"
+		ADDRESS="$(awk -F= '/Address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/systemd/network/*.network | head -n1)"
 	elif [ -e "${MACHINES}/${CONTAINER}/etc/network/interfaces" ]
 	then
-		ADDRESSES="$(awk '/address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/network/interfaces)"
+		ADDRESS="$(awk '/address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/network/interfaces | head -n1)"
 	fi
 
-	ADDRESSES="${ADDRESSES:-n/a}"
+	ADDRESS="${ADDRESS:-n/a}"
 
 	if echo ${LIST} | grep -qs all
 	then
-		Show
+		List
 	fi
 
 	for ITEM in other started stopped
@@ -206,9 +380,45 @@ do
 		then
 			case "${STATE}" in
 				${ITEM})
-					Show
+					List
 					;;
 			esac
 		fi
 	done
 done
+
+case "${FORMAT}" in
+	cli)
+
+cat << EOF
+--------------------------------------------------------------------------------
+EOF
+
+		;;
+
+	json)
+
+cat << EOF
+  ],
+}
+EOF
+
+		;;
+
+	xml)
+
+cat << EOF
+</containers>
+EOF
+
+		;;
+esac
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/rename b/lib/container/move
index 467d687..6e855e4 100755
--- a/lib/container/rename
+++ b/lib/container/move
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -110,7 +111,7 @@ case "${FORCE}" in
 	*)
 		if container list --other | grep -qs "^${OLD}$"
 		then
-			echo -n "'${OLD}': rename remote container to '${NEW}' [y|N]? "
+			echo -n "'${OLD}': rename container to '${NEW}' [y|N]? "
 			read FORCE
 
 			FORCE="$(echo ${FORCE} | tr [A-Z] [a-z])"
@@ -127,11 +128,20 @@ case "${FORCE}" in
 		;;
 esac
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 mv "${CONFIG}/${OLD}.conf" "${CONFIG}/${NEW}.conf"
 mv "${MACHINES}/${OLD}" "${MACHINES}/${NEW}"
 
-# Renaming bind mounts
+# bind mounts
 BIND="$(awk -F= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
 
 if [ -n "${BIND}" ]
@@ -158,5 +168,14 @@ then
 	done
 fi
 
-# Updating configuration file
+# config
 sed -i -e "s|${OLD}|${NEW}|g" "${CONFIG}/${NEW}.conf"
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/remove b/lib/container/remove
index 3670ca4..eec3b02 100755
--- a/lib/container/remove
+++ b/lib/container/remove
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -128,6 +129,15 @@ case "${VERBOSE}" in
 		;;
 esac
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # data
 if [ -e "${CONFIG}/${NAME}.conf" ]
 then
@@ -150,3 +160,12 @@ fi
 # Run
 rm --preserve-root --one-file-system -rf ${RM_OPTIONS} "${MACHINES}/${NAME}"
 rm -f ${RM_OPTIONS} "${CONFIG}/${NAME}.conf"
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/restart b/lib/container/restart
index 468b297..1c4c591 100755
--- a/lib/container/restart
+++ b/lib/container/restart
@@ -20,6 +20,7 @@ set -e
 
 COMMAND="$(basename ${0})"
 
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -77,5 +78,23 @@ then
 	exit 1
 fi
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 machinectl reboot ${NAME}
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/start b/lib/container/start
index 20d738e..40ee195 100755
--- a/lib/container/start
+++ b/lib/container/start
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 START="false"
@@ -155,6 +156,22 @@ case "${HOST_ARCHITECTURE}" in
 		;;
 esac
 
+case "${START}" in
+	start)
+		;;
+
+	*)
+		# Pre hooks
+		for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+		do
+			if [ -x "${FILE}" ]
+			then
+				"${FILE}"
+			fi
+		done
+		;;
+esac
+
 # config
 if [ -e "${CONFIG}/${NAME}.conf" ]
 then
@@ -421,5 +438,14 @@ case "${START}" in
 	*)
 		# Run
 		${SETARCH} systemd-nspawn --keep-unit ${BIND} ${BOOT} ${CAPABILITY} ${DIRECTORY} ${DROP_CAPABILITY} ${MACHINE} ${NETWORK_VETH_EXTRA} ${LINK_JOURNAL} ${REGISTER}
+
+		# Post hooks
+		for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+		do
+			if [ -x "${FILE}" ]
+			then
+				"${FILE}"
+			fi
+		done
 		;;
 esac
diff --git a/lib/container/status b/lib/container/status
index 65a7210..7429c78 100755
--- a/lib/container/status
+++ b/lib/container/status
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 Parameters ()
@@ -78,5 +79,23 @@ then
 	exit 1
 fi
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 # Run
 systemctl status container@${NAME}.service --full
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/stop b/lib/container/stop
index 3327025..e91d0c6 100755
--- a/lib/container/stop
+++ b/lib/container/stop
@@ -21,6 +21,7 @@ set -e
 COMMAND="$(basename ${0})"
 
 CONFIG="/etc/container-tools/config"
+HOOKS="/etc/container-tools/hooks"
 MACHINES="/var/lib/machines"
 
 CLEAN="false"
@@ -90,6 +91,15 @@ then
 	exit 1
 fi
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 STATE="$(machinectl show ${NAME} 2>&1 | awk -F= '/^State=/ { print $2 }')"
 
 case "${CLEAN}" in
@@ -182,3 +192,12 @@ esac
 
 # Run
 machinectl ${MODE} ${NAME}
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
diff --git a/lib/container/version b/lib/container/version
index b57c17d..f72355e 100755
--- a/lib/container/version
+++ b/lib/container/version
@@ -18,6 +18,25 @@
 
 set -e
 
+HOOKS="/etc/container-tools/hooks"
 SHARE="/usr/share/container-tools"
 
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
 cat "${SHARE}/VERSION.txt"
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done