Open Cloud Data Center

The Open Cloud Data Center initiative is focused on providing a standardized, scalable, and customizable cloud datacenter infrastructure.

Overview

The Open Cloud Data Center simplifies the deployment and management of cloud infrastructure through a modular, open-source architecture.

Why choose Open Cloud Data Center?

• Sovereignty: Complete control over your data and infrastructure.
• Portability: Move workloads across cloud providers or on-premises hardware.
• Cost-Efficiency: Optimize resource usage and avoid vendor lock-in.
• Community-Driven: Built on open standards and collaborative development.

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Quick Start

git clone https://github.com/wso2/open-cloud-datacenter.git
cd open-cloud-datacenter

Reference any module directly from GitHub in your Terraform configuration:

module "bootstrap" {
  source = "github.com/wso2-enterprise/open-cloud-datacenter//modules/bootstrap?ref=v0.1.0"

  ubuntu_image_id        = "default/ubuntu-22-04"
  vm_password            = var.vm_password
  rancher_hostname       = "rancher.example.internal"
  rancher_admin_password = var.rancher_admin_password
  ippool_subnet          = "192.168.10.0/24"
  ippool_gateway         = "192.168.10.1"
  ippool_start           = "192.168.10.10"
  ippool_end             = "192.168.10.10"
}

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Modules

The following reusable Terraform modules are available under modules/. See the architecture overview in docs/architecture.md for how they relate to each other.

Bootstrap

Module	Description
modules/bootstrap	Provisions an RKE2-based Rancher server on Harvester HCI via cloud-init, with a Load Balancer and IP pool for external access.

Management

Module	Description
modules/management/networking	Creates and manages VLAN-backed Harvester networks for tenant and management workloads.
modules/management/storage	Downloads and registers OS images into Harvester HCI, making them available for VM provisioning.
modules/management/rbac	Creates Rancher projects and namespaces with resource quotas for multi-tenant RBAC isolation.
modules/management/harvester-integration	Registers the Harvester HCI cluster into Rancher, enabling the UI extension and cloud credential.

Workloads

Module	Description
modules/workloads/k8s-cluster	Provisions a tenant RKE2 Kubernetes cluster on Harvester HCI via Rancher's machine provisioning API.

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Deployment Phases

The modules are designed to be applied in sequence across four phases:

1. Phase 0 — Bootstrap (modules/bootstrap): Deploy RKE2 + Rancher inside Harvester.
2. Phase 1 — Rancher Auth: Connect the Rancher provider using the bootstrapped endpoint.
3. Phase 2 — Management (modules/management/*): Register Harvester, configure networks, images, and RBAC.
4. Phase 3 — Tenants (modules/workloads/k8s-cluster): Provision tenant Kubernetes clusters on demand.

See docs/architecture.md for a detailed breakdown.

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Reporting Product Issues

• GitHub Issues: Report bugs or request features

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Contributing

We welcome contributions! Please see CONTRIBUTING.md for details on our code of conduct and the process for submitting pull requests.

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.