env assigns all variables to content including dotenv file

renderTemplate.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+import argparse
 import configparser
 import json
 import os
@@ -7,8 +8,8 @@ import sys
 
 import toml
 import yaml
+from dotenv import dotenv_values
 from jinja2 import Environment, TemplateError
-import argparse
 
 argsparser = argparse.ArgumentParser(description='Jinja Template Helper')
 
@@ -146,6 +147,9 @@ def render_template(template, outfile, variables=None):
 
     except TemplateError as exc:
         print_error("Rendering Error:", exc.message)
+        print_error("Values:")
+        for i, v in variables.items():
+            print_error(" %s = %s", i, v)
 
 
 if __name__ == '__main__':
@@ -158,7 +162,7 @@ if __name__ == '__main__':
     # If template was found
     if tpl:
         if args.env_file:
-            content = os.environ
+            content = os.environ | dotenv_values(".env")
         elif args.yaml_file:
             content = load_yaml_file(args.yaml_file)
         elif args.json_file: