Make encryption mandatory — archive contains all secrets

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backup.sh

@@ -28,7 +28,7 @@ VPS_USER="root"
 VPS_BACKUP_DIR="/opt/backups/vm-apps"
 KEEP_BACKUPS=7
 
-BACKUP_PASSWORD=""   # Set this to encrypt the archive, or leave blank to skip encryption
+BACKUP_PASSWORD=""   # Leave blank to be prompted each run (recommended)
 TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
 ARCHIVE_NAME="vm-apps-backup_${TIMESTAMP}.tar.gz"
 ENCRYPTED_NAME="${ARCHIVE_NAME}.enc"
@@ -59,12 +59,19 @@ docker ps | grep -q rv50x-postgres || error "rv50x-postgres is not running — s
 
 info "Preflight OK"
 
-# ── Prompt for backup password if not set ────────────────────────────────────
+# ── Require backup password ──────────────────────────────────────────────────
 
 if [ -z "$BACKUP_PASSWORD" ]; then
     echo ""
-    read -rsp "Enter backup encryption password (leave blank to skip encryption): " BACKUP_PASSWORD
+    while true; do
+        read -rsp "Enter backup encryption password: " BACKUP_PASSWORD
+        echo ""
+        [ -n "$BACKUP_PASSWORD" ] && break
+        warn "Password cannot be blank — the archive contains all secrets and must be encrypted"
+    done
+    read -rsp "Confirm password: " BACKUP_PASSWORD_CONFIRM
     echo ""
+    [ "$BACKUP_PASSWORD" = "$BACKUP_PASSWORD_CONFIRM" ] || error "Passwords do not match"
 fi
 
 # ── Stage files ──────────────────────────────────────────────────────────────
@@ -113,22 +120,16 @@ tar -czf "$WORK_DIR/$ARCHIVE_NAME" -C "$STAGE" .
 ARCHIVE_SIZE=$(du -sh "$WORK_DIR/$ARCHIVE_NAME" | cut -f1)
 info "Archive created: $ARCHIVE_NAME ($ARCHIVE_SIZE)"
 
-# ── Encrypt (optional) ───────────────────────────────────────────────────────
+# ── Encrypt ──────────────────────────────────────────────────────────────────
 
-if [ -n "$BACKUP_PASSWORD" ]; then
-    section "Encrypting archive"
-    openssl enc -aes-256-cbc -pbkdf2 -iter 100000 \
-        -in  "$WORK_DIR/$ARCHIVE_NAME" \
-        -out "$WORK_DIR/$ENCRYPTED_NAME" \
-        -pass pass:"$BACKUP_PASSWORD"
-    UPLOAD_FILE="$WORK_DIR/$ENCRYPTED_NAME"
-    UPLOAD_NAME="$ENCRYPTED_NAME"
-    info "Archive encrypted"
-else
-    warn "No password set — archive will NOT be encrypted"
-    UPLOAD_FILE="$WORK_DIR/$ARCHIVE_NAME"
-    UPLOAD_NAME="$ARCHIVE_NAME"
-fi
+section "Encrypting archive"
+openssl enc -aes-256-cbc -pbkdf2 -iter 100000 \
+    -in  "$WORK_DIR/$ARCHIVE_NAME" \
+    -out "$WORK_DIR/$ENCRYPTED_NAME" \
+    -pass pass:"$BACKUP_PASSWORD"
+UPLOAD_FILE="$WORK_DIR/$ENCRYPTED_NAME"
+UPLOAD_NAME="$ENCRYPTED_NAME"
+info "Archive encrypted"
 
 # ── Upload to VPS ────────────────────────────────────────────────────────────