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127 lines
2.7 KiB
Bash
Executable File
127 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2017 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This driver implements a tmpfs with a pre-populated file index.html.
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# Attach is required, but it is a no-op that always returns success.
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FLEX_DUMMY_LOG=${FLEX_DUMMY_LOG:-"/tmp/flex-dummy.log"}
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VALID_MNTDEVICE=foo
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# attach always returns one valid mount device so a different device
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# showing up in a subsequent driver call implies a bug
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validateMountDeviceOrDie() {
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MNTDEVICE=$1
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CALL=$2
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if [ "$MNTDEVICE" != "$VALID_MNTDEVICE" ]; then
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log "{\"status\":\"Failure\",\"message\":\"call "${CALL}" expected device "${VALID_MNTDEVICE}", got device "${MNTDEVICE}"\"}"
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exit 0
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fi
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}
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log() {
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printf "$*" >&1
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}
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debug() {
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echo "$(date) $*" >> "${FLEX_DUMMY_LOG}"
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}
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attach() {
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debug "attach $@"
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log "{\"status\":\"Success\",\"device\":\""${VALID_MNTDEVICE}"\"}"
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exit 0
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}
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detach() {
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debug "detach $@"
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log "{\"status\":\"Success\"}"
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exit 0
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}
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waitforattach() {
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debug "waitforattach $@"
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MNTDEVICE=$1
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validateMountDeviceOrDie "$MNTDEVICE" "waitforattach"
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log "{\"status\":\"Success\",\"device\":\""${MNTDEVICE}"\"}"
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exit 0
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}
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isattached() {
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debug "isattached $@"
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log "{\"status\":\"Success\",\"attached\":true}"
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exit 0
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}
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domountdevice() {
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debug "domountdevice $@"
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MNTDEVICE=$2
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validateMountDeviceOrDie "$MNTDEVICE" "domountdevice"
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MNTPATH=$1
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mkdir -p ${MNTPATH} >/dev/null 2>&1
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mount -t tmpfs none ${MNTPATH} >/dev/null 2>&1
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echo "Hello from flexvolume!" >> "${MNTPATH}/index.html"
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log "{\"status\":\"Success\"}"
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exit 0
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}
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unmountdevice() {
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debug "unmountdevice $@"
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MNTDEVICE=$2
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validateMountDeviceOrDie "$MNTDEVICE" "unmountdevice"
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MNTPATH=$1
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rm "${MNTPATH}/index.html" >/dev/null 2>&1
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umount ${MNTPATH} >/dev/null 2>&1
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log "{\"status\":\"Success\"}"
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exit 0
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}
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op=$1
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if [ "$op" = "init" ]; then
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debug "init $@"
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log "{\"status\":\"Success\",\"capabilities\":{\"attach\":true}}"
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exit 0
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fi
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shift
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case "$op" in
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attach)
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attach $*
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;;
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detach)
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detach $*
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;;
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waitforattach)
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waitforattach $*
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;;
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isattached)
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isattached $*
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;;
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mountdevice)
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domountdevice $*
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;;
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unmountdevice)
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unmountdevice $*
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;;
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*)
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log "{\"status\":\"Not supported\"}"
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exit 0
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esac
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exit 1
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