Waldur Site Agent

A stateless Python application that synchronizes data between Waldur Mastermind and service provider backends. Manages account creation, usage reporting, and membership synchronization across different cluster management systems.

Architecture

The agent uses a uv workspace architecture with pluggable backends:

• Core Package: waldur-site-agent (base classes, common utilities)
• Plugin Packages: Standalone backend implementations under plugins/ (see table below)

Agent Modes

• order_process: Fetches orders from Waldur and manages backend resources
• report: Reports usage data from backend to Waldur
• membership_sync: Synchronizes user memberships
• event_process: Event-based processing using STOMP

Installation

The core agent and every plugin are published to PyPI. Install the core package plus the plugins you need — all packages share the same version number, so keep them in sync:

pip install waldur-site-agent waldur-site-agent-slurm

See the plugin table below for the full list of published packages.

For Kubernetes, released Helm charts are published to a chart repository hosted on GitHub Pages:

helm repo add waldur https://waldur.github.io/waldur-site-agent
helm repo update
helm search repo waldur/waldur-site-agent --versions
helm install waldur-site-agent waldur/waldur-site-agent

Release candidates are pre-release versions — add --devel to see and install them. Configurable values are documented in the chart README.

Usage

waldur_site_agent -m <mode> -c <config-file>

Logging

The agent emits structured logs in JSON format to stdout. This applies to both the core agent and CLI tools.

Example log entry:

{"event": "Running agent in order_process mode", "level": "info", "logger": "waldur_site_agent.backend", "timestamp": "2026-02-03T14:02:35.551020+00:00"}

CLI Arguments

• -m, --mode: Agent mode (order_process, report, membership_sync, event_process)
• -c, --config-file: Path to configuration file

Environment Variables

• WALDUR_SITE_AGENT_ORDER_PROCESS_PERIOD_MINUTES: Order processing period (default: 5)
• WALDUR_SITE_AGENT_REPORT_PERIOD_MINUTES: Reporting period (default: 30)
• WALDUR_SITE_AGENT_MEMBERSHIP_SYNC_PERIOD_MINUTES: Membership sync period (default: 5)
• SENTRY_ENVIRONMENT: Sentry environment name

Development

# Install dependencies
uv sync --all-packages

# Run tests
uv run pytest

# Format and lint code
uvx prek run --all-files

# Load components into Waldur
waldur_site_load_components -c <config-file>

Releasing

./scripts/release.sh 0.10.0
# Review the commit, then push:
git push origin main --tags

See the Releasing Guide for details on version bumping, changelog generation, and what CI does after you push.

Documentation

For operators deploying the agent:

• Quickstart - the fastest path from a fresh install to a running, verified agent
• Installation Guide
• Configuration Reference
• Configuration Validation - how config errors are reported, and how to read them
• Deployment Guide
• Upgrading Guide
• Username Management
• SLURM Usage Reporting Setup

For contributors:

• Architecture & Plugin Development
• Releasing Guide

Plugins

Plugin	PyPI package	Description
azure	waldur-site-agent-azure	Azure virtual machines plugin
basic_username_management	waldur-site-agent-basic-username-management	Basic username management plugin
ceph-s3	waldur-site-agent-ceph-s3	Ceph S3 storage plugin (croit and RadosGW flavours)
cscs-dwdi	waldur-site-agent-cscs-dwdi	CSCS-DWDI reporting plugin
digitalocean	waldur-site-agent-digitalocean	DigitalOcean plugin
envoy-ai-gateway	waldur-site-agent-envoy-ai-gateway	Envoy AI Gateway (API keys + usage reporting) plugin
harbor	waldur-site-agent-harbor	Harbor container registry plugin
k8s-ut-namespace	waldur-site-agent-k8s-ut-namespace	Kubernetes UT ManagedNamespace plugin
keycloak-client	waldur-site-agent-keycloak-client	Shared Keycloak client for Waldur Site Agent plugins
ldap	waldur-site-agent-ldap	LDAP plugin
litellm	waldur-site-agent-litellm	LiteLLM (virtual key lifecycle + usage reporting) plugin
moab	waldur-site-agent-moab	MOAB plugin
mup	waldur-site-agent-mup	MUP plugin
nextcloud	waldur-site-agent-nextcloud	Nextcloud plugin
okd	waldur-site-agent-okd	OKD/OpenShift plugin
opennebula	waldur-site-agent-opennebula	OpenNebula VDC plugin
rancher	waldur-site-agent-rancher	Rancher plugin
rancher-kc-crd	waldur-site-agent-rancher-kc-crd	Rancher + Keycloak CRD-driven plugin
slurm	waldur-site-agent-slurm	SLURM plugin
waldur	waldur-site-agent-waldur	Waldur-to-Waldur federation plugin

License

MIT License - see LICENCE file for details.