Update: dockerize app, rename pkg to mgrctl, fix imports

mgrctl/utils/helpers.py

@@ -0,0 +1,23 @@
+import json
+import sys
+import click
+
+
+def parse_json_file(file_path: str) -> dict:
+    """
+    Function read json file as usual config.json then parse it to python dict
+
+    Args:
+        config_file_path (str): path to config file
+
+    Returns:
+        dict: contains parse json content
+    """
+    try:
+        with open(file_path, 'r') as f:
+            return json.load(f)
+    except Exception as error:
+        click.echo(error)
+        click.echo("Required: /opt/ispsystem/PLATFORM_TYPE/config.json")
+        click.echo("Note: don't forget to mount this file into the container")
+        sys.exit(1)