#!/bin/sh
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This driver is especially designed to test a long mounting scenario
# which can cause a volume to be detached while mount is in progress.
FLEX_DUMMY_LOG=${FLEX_DUMMY_LOG:-"/tmp/flex-dummy.log"}
VALID_MNTDEVICE=foo
# attach always returns one valid mount device so a different device
# showing up in a subsequent driver call implies a bug
validateMountDeviceOrDie() {
MNTDEVICE=$1
CALL=$2
if [ "$MNTDEVICE" != "$VALID_MNTDEVICE" ]; then
log "{\"status\":\"Failure\",\"message\":\"call "${CALL}" expected device "${VALID_MNTDEVICE}", got device "${MNTDEVICE}"\"}"
exit 0
fi
}
log() {
printf "$*" >&1
}
debug() {
echo "$(date) $*" >> "${FLEX_DUMMY_LOG}"
}
attach() {
debug "attach $@"
log "{\"status\":\"Success\",\"device\":\""${VALID_MNTDEVICE}"\"}"
exit 0
}
detach() {
debug "detach $@"
# TODO issue 44737 detach is passed PV name, not mount device
log "{\"status\":\"Success\"}"
exit 0
}
waitforattach() {
debug "waitforattach $@"
MNTDEVICE=$1
validateMountDeviceOrDie "$MNTDEVICE" "waitforattach"
log "{\"status\":\"Success\",\"device\":\""${MNTDEVICE}"\"}"
exit 0
}
isattached() {
debug "isattached $@"
log "{\"status\":\"Success\",\"attached\":true}"
exit 0
}
domountdevice() {
debug "domountdevice $@"
MNTDEVICE=$2
validateMountDeviceOrDie "$MNTDEVICE" "domountdevice"
MNTPATH=$1
mkdir -p ${MNTPATH} >/dev/null 2>&1
mount -t tmpfs none ${MNTPATH} >/dev/null 2>&1
sleep 120
echo "Hello from flexvolume!" >> "${MNTPATH}/index.html"
log "{\"status\":\"Success\"}"
exit 0
}
unmountdevice() {
debug "unmountdevice $@"
MNTPATH=$1
rm "${MNTPATH}/index.html" >/dev/null 2>&1
umount ${MNTPATH} >/dev/null 2>&1
log "{\"status\":\"Success\"}"
exit 0
}
expandvolume() {
debug "expandvolume $@"
log "{\"status\":\"Success\"}"
exit 0
}
expandfs() {
debug "expandfs $@"
log "{\"status\":\"Success\"}"
exit 0
}
op=$1
if [ "$op" = "init" ]; then
debug "init $@"
log "{\"status\":\"Success\",\"capabilities\":{\"attach\":true, \"requiresFSResize\":true}}"
exit 0
fi
shift
case "$op" in
attach)
attach $*
;;
detach)
detach $*
;;
waitforattach)
waitforattach $*
;;
isattached)
isattached $*
;;
mountdevice)
domountdevice $*
;;
unmountdevice)
unmountdevice $*
;;
expandvolume)
expandvolume $*
;;
expandfs)
expandfs $*
;;
*)
log "{\"status\":\"Not supported\"}"
exit 0
esac
exit 1