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#!/usr/bin/env bash
set -e
die() {
echo -e "\033[31mError: " "$@" "\033[0m" >&2
exit 1
}
note() {
echo -e "\033[33mNote: " "$@" "\033[0m"
}
success() {
echo -e "\033[32mSuccess: " "$@" "\033[0m"
}
if [[ -z "$CRUPEST_AUTO_BACKUP_INTERVAL" ]]; then
die "Backup interval not set, please set it!"
fi
note "Checking secrets..."
[[ -n "$RCLONE_S3_PROVIDER" ]] || die "S3 provider not set!"
[[ -n "$RCLONE_S3_ENDPOINT" ]] || die "S3 endpoint not set!"
[[ -n "$RCLONE_S3_ACCESS_KEY_ID" ]] || die "S3 AccessKey ID not set!"
[[ -n "$RCLONE_S3_SECRET_ACCESS_KEY" ]] || die "S3 AccessKey Secret not set!"
[[ -n "$CRUPEST_AUTO_BACKUP_S3_BUCKET" ]] || die "S3 bucket not set!"
success "Secrets check passed."
note "Checking tools..."
tar --version
zstd --version
rclone --version
success "Tools check passed."
echo "Backup interval set to $CRUPEST_AUTO_BACKUP_INTERVAL..."
if [[ -z "$CRUPEST_AUTO_BACKUP_INIT_DELAY" ]]; then
echo "Initial delay not set, will do a backup immediately!"
else
echo "Initial delay set to $CRUPEST_AUTO_BACKUP_INIT_DELAY ..."
sleep "$CRUPEST_AUTO_BACKUP_INIT_DELAY"
fi
function backup {
note "Begin backup..."
# Get current time and convert it to YYYY-MM-DDTHH:MM:SSZ
current_time="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
echo "Current time UTC: $current_time"
backup_file_ext="tar.zst"
tmp_file="/tmp/data.$backup_file_ext"
echo "Create $tmp_file for data..."
tar -cp --zstd -f "$tmp_file" -C / data
du -h "$tmp_file" | cut -f1 | xargs echo "Size of $tmp_file:"
des_file_name="$current_time.$backup_file_ext"
echo "Upload $des_file_name to S3..."
rclone --config=/app/rclone.conf copyto \
"$tmp_file" "remote://${CRUPEST_AUTO_BACKUP_S3_BUCKET}/$des_file_name"
echo "Remove tmp file..."
rm "$tmp_file"
echo "$des_file_name" >> /data/auto-backup/backup.log
success "Finish backup!"
}
# forever loop
while true; do
backup
echo "Sleep for $CRUPEST_AUTO_BACKUP_INTERVAL for next backup..."
sleep "$CRUPEST_AUTO_BACKUP_INTERVAL"
done
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