snapshot.sh

#!/bin/bash

DIGITALOCEAN_TOKEN=''
VOLUME_ID=''
SNAPSHOT_NAME=''

DATE=`date '+%Y%m%d-%H%M%S'`

sync

curl -X POST \
  "https://api.digitalocean.com/v2/volumes/$VOLUME_ID/snapshots" \
  -H "authorization: Bearer $DIGITALOCEAN_TOKEN" \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/json' \
  -d "{
  \"name\": \"$SNAPSHOT_NAME-$DATE\"
}"


OLD_SNAPSHOTS=$(curl https://api.digitalocean.com/v2/snapshots?resource_type=volume \
-H "authorization: Bearer $DIGITALOCEAN_TOKEN" -H 'cache-control: no-cache' \
-H 'content-type: application/json' | jq ".snapshots|sort_by(.created_at)[:-2][] | .id" | sed "s/\"//g")
## Currently, it will keep 2 newest snapshots. If you want to config this, change [2:] to other value. E.g. [1:] for keep only the newest snapshot.

for SNAPSHOT_ID in $OLD_SNAPSHOTS
do
    curl -X DELETE -H 'Content-Type: application/json' \
    -H "authorization: Bearer $DIGITALOCEAN_TOKEN" "https://api.digitalocean.com/v2/snapshots/$SNAPSHOT_ID"
done