apache cloudstack
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firecracker cloudstack integration

Integration with Firecracker

The integration between Apache CloudStack and Firecracker is implemented using the CloudStack XaaS Extensions Framework. Firecracker is consumed as an external virtualization backend, allowing CloudStack to orchestrate microVM instances through extension-driven lifecycle operations.
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About Amazon Web Services (AWS)

Amazon Web Services is the creator of Firecracker, an open-source virtualization technology designed to run lightweight, secure microVMs. Firecracker was originally developed to power AWS services such as Lambda and Fargate, focusing on fast startup times, strong isolation, and minimal resource overhead.

Firecrackers's Integration with Apache CloudStack

The integration between Apache CloudStack and Firecracker is implemented using the CloudStack XaaS Extensions Framework. Firecracker is consumed as an external virtualization backend, allowing CloudStack to orchestrate microVM instances through extension-driven lifecycle operations.

This approach enables CloudStack to manage Firecracker-based workloads without treating Firecracker as a traditional hypervisor, extending CloudStack beyond classic IaaS into lightweight compute use cases such as ephemeral workloads, automation tasks, and specialized application platforms.

Pros

  • Extremely fast Instance startup times
  • Strong isolation using hardware virtualization
  • Low resource footprint compared to traditional virtual machines
  • Console access supported in CloudStack 4.22
  • Extends CloudStack with lightweight compute via XaaS Extensions

Cons

  • Focused feature set compared to full hypervisors
  • Networking and storage are handled explicitly via the extension model
  • 3
implementation

Ease of Implementation

Moderate setup using the CloudStack XaaS Extensions Framework and external host configuration.
use
  • 4

Ease of Use

Easy, with management performed consistently through the CloudStack UI and API.
total cost
  • 5

Total Cost of Ownership

Low, leveraging open-source software and minimal infrastructure overhead.
support
  • 3

Support

Firecracker is supported through the open-source community, with active development and documentation maintained by AWS. Support for the CloudStack integration is provided via the CloudStack community and extension maintainers.
integrations
  • 4

Supported Integrations

• Apache CloudStack XaaS Extensions Framework
• Firecracker microVM runtime
• Instance lifecycle and custom action extensions
• Console access (CloudStack 4.22+)

Resources

Expert Analysis

CloudStack Firecracker Extension (GitHub)

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Technical Documentation

Apache CloudStack XaaS Extensions Documentation

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