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templates/backup.sh

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+#!/bin/bash
+# Version: 1.1.0
+# Author: Tomi Eckert
+# ==============================================================================
+# SAP HANA Backup Script
+#
+# Performs schema exports for one or more schemas and/or tenant backups for a
+# SAP HANA database using hanatool.sh. Designed to be executed via a cronjob.
+# Reads all settings from the backup.conf file in the same directory.
+# ==============================================================================
+
+# --- Configuration and Setup ---
+
+# Find the script's own directory to locate the config file and hanatool.sh
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)
+CONFIG_FILE="${SCRIPT_DIR}/backup.conf"
+HANATOOL_PATH="${SCRIPT_DIR}/hanatool.sh" # Assuming hanatool.sh is in the parent directory
+
+# Check for config file and source it
+if [[ -f "$CONFIG_FILE" ]]; then
+    source "$CONFIG_FILE"
+else
+    echo "❌ Error: Configuration file not found at '${CONFIG_FILE}'"
+    exit 1
+fi
+
+# Check if hanatool.sh executable exists
+if [[ ! -x "$HANATOOL_PATH" ]]; then
+    echo "❌ Error: hanatool.sh not found or not executable at '${HANATOOL_PATH}'"
+    exit 1
+fi
+
+# --- Main Execution ---
+
+echo "⚙️  Starting HANA backup process using hanatool.sh..."
+
+mkdir -p "$BACKUP_BASE_DIR"
+
+SCHEMA_EXPORT_OPTIONS=""
+
+case "$BACKUP_TYPE" in
+    schema)
+        if [[ -z "$SCHEMA_NAMES" ]]; then
+            echo "   ⚠️  Warning: SCHEMA_NAMES variable is not set in config. Skipping schema export."
+        else
+            echo "🔎 Found schemas to export: ${SCHEMA_NAMES}"
+            for schema in $SCHEMA_NAMES; do
+                echo "⬇️  Starting schema export for '${schema}'..."
+                SCHEMA_EXPORT_OPTIONS="$COMMON_OPTIONS"
+                if [[ -n "$THREADS" ]]; then
+                    SCHEMA_EXPORT_OPTIONS+=" -t $THREADS"
+                fi
+                if [[ "$COMPRESS_SCHEMA" == "true" ]]; then
+                    SCHEMA_EXPORT_OPTIONS+=" --compress"
+                fi
+                "$HANATOOL_PATH" "$USER_KEY" export "$schema" "${BACKUP_BASE_DIR}/schema" $SCHEMA_EXPORT_OPTIONS
+                if [[ $? -ne 0 ]]; then
+                    echo "❌ Error: Schema export for '${schema}' failed."
+                fi
+                echo "--------------------------------------------------"
+            done
+        fi
+        ;;
+    tenant)
+        echo "⬇️  Starting Tenant backup..."
+        TENANT_BACKUP_OPTIONS="$COMMON_OPTIONS"
+        if [[ "$COMPRESS_TENANT" == "true" ]]; then
+            TENANT_BACKUP_OPTIONS+=" --compress"
+        fi
+        "$HANATOOL_PATH" "$USER_KEY" backup "${BACKUP_BASE_DIR}/tenant" $TENANT_BACKUP_OPTIONS
+        if [[ $? -ne 0 ]]; then
+            echo "❌ Error: Tenant backup failed."
+        fi
+        ;;
+    all)
+        if [[ -z "$SCHEMA_NAMES" ]]; then
+            echo "   ⚠️  Warning: SCHEMA_NAMES variable is not set in config. Skipping schema export."
+        else
+            echo "🔎 Found schemas to export: ${SCHEMA_NAMES}"
+            for schema in $SCHEMA_NAMES; do
+                echo "⬇️  Starting schema export for '${schema}'..."
+                SCHEMA_EXPORT_OPTIONS="$COMMON_OPTIONS"
+                if [[ -n "$THREADS" ]]; then
+                    SCHEMA_EXPORT_OPTIONS+=" -t $THREADS"
+                fi
+                if [[ "$COMPRESS_SCHEMA" == "true" ]]; then
+                    SCHEMA_EXPORT_OPTIONS+=" --compress"
+                fi
+                "$HANATOOL_PATH" "$USER_KEY" export "$schema" "${BACKUP_BASE_DIR}/schema" $SCHEMA_EXPORT_OPTIONS
+                if [[ $? -ne 0 ]]; then
+                    echo "❌ Error: Schema export for '${schema}' failed."
+                fi
+                echo "--------------------------------------------------"
+            done
+        fi
+
+        echo "⬇️  Starting Tenant backup..."
+        TENANT_BACKUP_OPTIONS="$COMMON_OPTIONS"
+        if [[ "$COMPRESS_TENANT" == "true" ]]; then
+            TENANT_BACKUP_OPTIONS+=" --compress"
+        fi
+        "$HANATOOL_PATH" "$USER_KEY" backup "${BACKUP_BASE_DIR}/tenant" $TENANT_BACKUP_OPTIONS
+        if [[ $? -ne 0 ]]; then
+            echo "❌ Error: Tenant backup failed."
+        fi
+        ;;
+    *)
+        echo "   ❌ Error: Invalid BACKUP_TYPE '${BACKUP_TYPE}' in config. Use 'schema', 'tenant', or 'all'."
+        ;;
+esac
+
+# Check if SYSTEMDB backup is enabled, regardless of BACKUP_TYPE (as long as it's not 'schema' only)
+if [[ "$BACKUP_TYPE" == "tenant" || "$BACKUP_TYPE" == "all" ]]; then
+    if [[ "$BACKUP_SYSTEMDB" == "true" ]]; then
+        echo "--------------------------------------------------"
+        if [[ -z "$SYSTEMDB_USER_KEY" ]]; then
+            echo "   ❌ Error: BACKUP_SYSTEMDB is true, but SYSTEMDB_USER_KEY is not set in config."
+        else
+            echo "⬇️  Starting SYSTEMDB backup..."
+            SYSTEMDB_BACKUP_OPTIONS="$COMMON_OPTIONS"
+            if [[ "$COMPRESS_TENANT" == "true" ]]; then # SYSTEMDB compression uses COMPRESS_TENANT setting
+                SYSTEMDB_BACKUP_OPTIONS+=" --compress"
+            fi
+            "$HANATOOL_PATH" "$SYSTEMDB_USER_KEY" backup "${BACKUP_BASE_DIR}/tenant" $SYSTEMDB_BACKUP_OPTIONS
+            if [[ $? -ne 0 ]]; then
+                echo "❌ Error: SYSTEMDB backup failed."
+            fi
+        fi
+    fi
+fi
+
+echo "📦 Backup process complete."
+echo "👋 Exiting."