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Add Healthchecks.io start ping before sync #10

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Add Healthchecks.io start ping before sync #10

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b529baf
Adds Healthchecks.io start ping before sync
Jul 10, 2019
d6f9624
Parameterize START_URL, and add to readme
Jul 11, 2019
01162de
Don't use +x evaluation in sync.sh
Jul 11, 2019
671ef4c
Remove some stupid whitespace
Jul 11, 2019
b67674f
Re-add -x in START_URL eval, but don't define it in Dockerfile
Jul 11, 2019
dc19e94
Remove curly brackets from start URL concat
Jul 11, 2019
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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ A few environment variables allow you to customize the behavior of the sync:
* `CRON_ABORT` crontab schedule `0 6 * * *` to abort sync at 6am
* `FORCE_SYNC` set variable to perform a sync upon boot
* `CHECK_URL` [healthchecks.io](https://healthchecks.io) url or similar cron monitoring to perform a `GET` after a successful sync
* `START_URL` same as `CHECK_URL`, but is called before sync starts. If `CHECK_URL` is defined as a healthchecks.io URL, this defaults to [${CHECK_URL}/start](https://healthchecks.io/docs/#start-event).
* `SYNC_OPTS` additional options for `rclone sync` command. Defaults to `-v`
* `TZ` set the [timezone](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) to use for the cron and log `America/Argentina/Buenos_Aires`

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12 changes: 12 additions & 0 deletions sync.sh
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Expand Up @@ -12,11 +12,23 @@ else
echo $$ > /tmp/sync.pid

if test "$(rclone ls --max-depth 1 $SYNC_SRC $RCLONE_OPTS)"; then
# Send a start ping if a) START_URL is explicitly set OR b) if Healthchecks.io is used as CHECK_URL provider
if [ -z ${START_URL+x} ]
then
if echo "$CHECK_URL" | grep "hc-ping"
then
wget "$CHECK_URL/start" -O /dev/null
fi
else
wget $START_URL -O /dev/null
fi

# the source directory is not empty
# it can be synced without clear data loss
echo "INFO: Starting rclone sync $SYNC_SRC $SYNC_DEST $RCLONE_OPTS $SYNC_OPTS"
rclone sync $SYNC_SRC $SYNC_DEST $RCLONE_OPTS $SYNC_OPTS

# Send "done" ping to HC, if set
if [ -z "$CHECK_URL" ]
then
echo "INFO: Define CHECK_URL with https://healthchecks.io to monitor sync job"
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