Tidying

templates/example-nginx/backup.sh

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+#!/bin/bash
+
+# BACKUP SCRIPT
+# The backup script is OPTIONAL.
+# It is used to backup the service on the server.
+# It is called with one argument: the path to the destination backup file.
+# If the backup file already exists, the script should exit with a message.
+
+source "$(dirname "$0")/_common.sh"
+check_required_env_vars "CONTAINER_NAME" "LOCAL_DATA_FOLDER"
+
+# Get backup file path from first argument
+BACKUP_FILE="$1"
+if [ -z "$BACKUP_FILE" ]; then
+    die "Backup file path not provided"
+fi
+
+# Check if backup file already exists
+if [ -f "$BACKUP_FILE" ]; then
+    die "Backup file $BACKUP_FILE already exists"
+fi
+
+# Stop container before backup
+_stop_container "$CONTAINER_NAME"
+
+Create backup of data folder
+echo "Creating backup of $LOCAL_DATA_FOLDER..."
+if ! tar zcvf "$BACKUP_FILE" -C "$LOCAL_DATA_FOLDER" .; then
+    _start_container "$CONTAINER_NAME"
+    die "Failed to create backup"
+fi
+
+# Start container after backup
+_start_container "$CONTAINER_NAME"
+
+echo "Backup created successfully: $BACKUP_FILE"