| #!/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 implements a tmpfs with a pre-populated file index.html. |
| # Attach is required, but it is a no-op that always returns success. |
| |
| 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 ${MNTPATH} >/dev/null 2>&1 |
| echo "Hello from flexvolume!" >> "${MNTPATH}/index.html" |
| log "{\"status\":\"Success\"}" |
| exit 0 |
| } |
| |
| unmountdevice() { |
| debug "unmountdevice $@" |
| MNTDEVICE=$2 |
| validateMountDeviceOrDie "$MNTDEVICE" "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 |