HDM - Hiera Data Manager

Copyright 2023-2025 betadots GmbH

This Rails application displays Puppet Hiera data and offers a WebGUI to read/update/create that configuration.

Features

• Shows where values of the key come from
• Merge values if a special behavior for their keys are given
• Optional management of data inside a git repository
• Easy to setup via container
• Authentication via
  • local SQLite database
  • LDAP and SAML connection to a Server, e.g. Microsoft Active Directory
  • Admins only manage additional user accounts, no data
• Autorization (Role Based Access Controll) via Groups
  • Down to environment, node and key level
• Smart proxy for integration in foreman

Documentation

A complete documentation of setup and using HDM including screenshots is located in doc/.

Installation

At the moment manual installation is only tested on Debian, Ubuntu and Enterprise Linux. But we highly recommend to use the Docker image!

To take a first look at HDM or for development purposes, starting it as a Docker container WITHOUT a persistent database is sufficient.

docker run -it --rm -p 3000:3000 \
    -e DEVELOP=1 \
    -e SECRET_KEY_BASE=$(openssl rand -hex 16) \
    ghcr.io/betadots/hdm:development

For both setup methods, see doc/01_Setup.md. For automated docker setups we recommend using Puppet code. A working profile example can be found in PUPPET.md

How to develop or contribute?

see DEVELOPMENT.md

see CONTRIBUTING.md