37 lines
942 B
Bash
Executable File
37 lines
942 B
Bash
Executable File
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
# Configuration
|
|
MONGO_SERVICE="utility-bills-tracker_mongo"
|
|
|
|
# scale down mongo service while we copy its volume
|
|
docker service scale "$MONGO_SERVICE"=0
|
|
|
|
# timestamp for filename
|
|
TIMESTAMP=$(date +"%Y-%m-%d-%H-%M")
|
|
|
|
# backup directory and retention (can be overridden via env)
|
|
BACKUP_DIR="${BACKUP_DIR:-backups}"
|
|
KEEP="${KEEP:-7}"
|
|
|
|
mkdir -p "$BACKUP_DIR"
|
|
|
|
BACKUP_FILE="$BACKUP_DIR/mongo-volume-backup-$TIMESTAMP.tar.gz"
|
|
|
|
sudo tar -czvpf "$BACKUP_FILE" mongo-volume
|
|
|
|
# rotate old backups: keep only the newest $KEEP files
|
|
if [ "$KEEP" -gt 0 ]; then
|
|
# gather files sorted newest-first
|
|
mapfile -t files < <(ls -1t "$BACKUP_DIR"/mongo-volume-backup-*.tar.gz 2>/dev/null || true)
|
|
if [ "${#files[@]}" -gt "$KEEP" ]; then
|
|
for f in "${files[@]:$KEEP}"; do
|
|
echo "Removing old backup: $f"
|
|
rm -f -- "$f"
|
|
done
|
|
fi
|
|
fi
|
|
|
|
# bring mongo service back up
|
|
docker service scale "$MONGO_SERVICE"=1
|