secret_template_renderer 0.2.0

A tool for templating .env files and more.

Secret Template Renderer

This project is a Jinja template renderer that supports fetching secrets from various providers.

Features

• Load built-in and user-defined plugins to extend the functionality
• Register multiple secret providers
• Render Jinja templates with secrets

Installation

Using pip

1. Clone the repository

2. Install the required dependencies

   pip install -r requirements.txt
   

Using pipx

pipx install secret_template_renderer

Usage

Template Utilities

• import_env: import dotenv file
• get_secret: retrieve secret via secret providers
• shell: execute shell command
• random: generate a random string with the following parameters:
  • length: int = 16,
  • type: string | password = 'string',
  • lower_case: bool = True,
  • numbers: bool = True,
  • has_special_chars: bool = False,
  • must_has_special_chars: bool = False,
  • exclude_characters: str = "",

Command Line Interface

• -d, --debug: Enable debug mode

Generate

str generate [-f <template_path>] [-o <output_path>] [-i <input_string>] [-p <password>]

• -f, --file: Path to the Jinja template file
• -o, --output: Path to the output file
• -i, --input: Input string to be rendered
• -p, --password: Password to be used for encryption

Encryption

str encrypt|decrypt [-f <template_path>] [-o <output_path>] [-i <input_string>] [-p <password>]

• -f, --file: Path to the Jinja template file
• -o, --output: Path to the output file
• -i, --input: Input string to be rendered
• -p, --password: Password to be used for encryption

Example

{{ import_env('.default.env') }} # Importing another dotenv file
DATABASE_PWD={{ get_secret('bitwarden', 'database_system_a', 'login.password') }} # Use the bitwarden plugins to load Bitwarden
NAME=app-{{ random(10) }} # Generate the randomised strings
PWD={{ decrypt("SfB505whBisKznrdHKLvQ0hhaESDP0MqvWFsYNkI0to=", "password") }}
UID={{ shell('echo $UID') }}

Custom plugins

To load custom plugins, place your plugin .py files in ~/.config/temv/plugins/[plugin_type]/[plugin_name]. Currently, there are 2 plugins: secrets and encryptions.

Each plugin must have a register function that takes a dictionary of secret providers as an argument.

Secret example:

import subprocess
from collections.abc import Callable


def get_custom_secret(item_name: str, path: str) -> str | None:
    pass


def register(secrets_providers: dict[str, Callable[[str, str], str | None]]):
    """Register secret provider."""
    secrets_providers["custom_provider"] = get_custom_secret

Encryption example:

import subprocess
from collections.abc import Callable


def encrypt(value: str, password: str) -> str | None:
    pass


def decrypt(value: str, password: str) -> str | None:
    pass


def register(providers: dict[str, Callable[[str, str], str | None]]):
    """Register encryption provider."""
    providers["custom_provider"] = {"encrypt": encrypt, "decrypt": decrypt}

License

This project is licensed under the MIT License.