add upgrade script

plugins/fluentd_telemetry_plugin/build/Dockerfile

@@ -11,7 +11,7 @@ COPY utils/ ${BASE_PATH}/utils/
 COPY ufm_sdk_tools/ ${BASE_PATH}/ufm_sdk_tools/
 
 COPY ${SRC_BASE_DIR}/conf/supervisord.conf /etc/supervisor/conf.d/
-COPY ${SRC_BASE_DIR}/scripts/init.sh ${SRC_BASE_DIR}/scripts/deinit.sh /
+COPY ${SRC_BASE_DIR}/scripts/init.sh ${SRC_BASE_DIR}/scripts/deinit.sh ${SRC_BASE_DIR}/scripts/upgrade.sh /
 COPY ${SRC_BASE_DIR}/conf/tfs_httpd_proxy.conf ${SRC_BASE_DIR}/conf/fluentd_telemetry_plugin.cfg ${SRC_BASE_DIR}/conf/fluentd.conf ${BASE_PATH}/
 
 COPY ${SRC_BASE_DIR}/lib/libfluent-bit.so ${SRC_BASE_DIR}/lib/libraw_msgpack_api.so  ${TELEMETRY_BASE_PATH}/collectx/lib/

plugins/fluentd_telemetry_plugin/scripts/upgrade.sh

@@ -0,0 +1,2 @@
+#!bin/bash
+/bin/usr/python merge_configuration_files.py /config/fluentd_telemetry_conf.cfg /opt/ufm/ufm_plugin_tfs/fluentd_telemetry_plugin/conf/fluentd_telemetry_conf.cfg

plugins/fluentd_telemetry_plugin/src/merge_configuration_files.py

@@ -0,0 +1,53 @@
+import configparser
+import logging
+import sys
+import os
+
+def merge_ini_files(old_file_path, new_file_path):
+    # Check if files exist
+    if not os.path.isfile(old_file_path):
+        logging.error(f"file '{old_file_path}' does not exist.")
+        sys.exit(1)
+    if not os.path.isfile(new_file_path):
+        logging.error(f"file '{new_file_path}' does not exist.")
+        sys.exit(1)
+
+    # Create a configparser object
+    config_old = configparser.ConfigParser()
+    config_new = configparser.ConfigParser()
+
+    # Read the old and new files
+    try:
+        config_old.read(old_file_path)
+        config_new.read(new_file_path)
+
+    except configparser.Error as e:
+        logging.error(f"Failed to parse configurations files: {e}")
+        sys.exit(1)
+
+    # Merge configurations
+    for section in config_new.sections():
+        if not config_old.has_section(section):
+            config_old.add_section(section)
+        for option in config_new.options(section):
+            # If option exists in the old file, retain the old value
+            if not config_old.has_option(section, option):
+                # Otherwise, add the new value
+                config_old.set(section, option, config_new.get(section, option))
+
+    # Write the merged configuration to the old file path
+    with open(old_file_path, 'w') as configfile:
+        config_old.write(configfile)
+
+    logging.info(f"Configuration has been merged and saved to {old_file_path}")
+
+if __name__ == "__main__":
+    # Get file paths from command line arguments
+    if len(sys.argv) != 3:
+        logging.error("Usage: python merge_configuration_files.py <old_file_path> <new_file_path>")
+        sys.exit(1)
+
+    old_file = sys.argv[1]
+    new_file = sys.argv[2]
+
+    merge_ini_files(old_file, new_file)