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Kusion

kusion.kusionstack.io

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Spec score 7.9 #10 of 31 in Infrastructure as Code Tools

What it is

Kusion is a free, open-source platform orchestrator for internal developer platforms. Its AppConfiguration lets developers describe application workloads and resource dependencies without setting environment-specific values. The declarative model combines workload, accessory, pipeline, and dependency concepts. The documented process moves through Write, Generate, and Apply, with a three-way diff preview before changes are applied. Kusion currently applies operations to Kubernetes, Terraform, and on-premises infrastructure. Platform engineers can create reusable modules to standardize deployments and support developer self-service. A built-in delivery pipeline can be extended with customized plugin steps managed by platform owners. The project describes security and compliance support through base models, policy-as-code guardrails, and automatic injection of accessory secrets into workloads. External secret-store guides cover AWS, Alibaba Cloud, and Viettel Cloud. Kusion is a lightweight client-side solution with APIs for integration and automation. Its CLI installation methods cover macOS, Linux, and Windows. The project calls itself early and rapidly iterated; help and feedback are available through Slack or GitHub issues.

Spec sheet

Product
Kusion describes itself as an intent-driven platform orchestrator at the core of an internal developer platform.Read 4 Oct 2026 · kusionstack.io
Intended users
Kusion is intended to help application developers and platform engineers who maintain application infrastructure.Read 4 Oct 2026 · kusionstack.io
Security
The overview describes built-in security and compliance support through base models, third-party policy-as-code guardrails, and automatic injection of accessory resource secrets into workloads.Read 4 Oct 2026 · kusionstack.io
Support
The documentation directs users to Slack or GitHub issues for help and feedback.Read 4 Oct 2026 · kusionstack.io
Founded
2020Read 28 Sep 2026 · kusion.kusionstack.io
Application specification
AppConfiguration lets developers describe an application workload and its resource dependencies without supplying environment-specific values.Read 4 Oct 2026 · kusionstack.io
Cloud secret integrations
The secrets guide documents external secret-store support for AWS, Alibaba Cloud, and Viettel Cloud.Read 4 Oct 2026 · kusionstack.io
Configuration model
AppConfiguration brings workload, accessory, pipeline, and dependency concepts together in an infrastructure-independent declarative specification.Read 4 Oct 2026 · kusionstack.io
Extensibility
Kusion describes itself as a lightweight, pure client-side solution with APIs for integration and automation and an expanding model ecosystem.Read 4 Oct 2026 · kusionstack.io
Installation
The Kusion CLI installation page lists macOS, Linux, and Windows installation methods.Read 4 Oct 2026 · kusionstack.io
Pipeline customization
Kusion provides a built-in delivery pipeline and supports customized pipeline steps implemented as plugins managed by platform owners.Read 4 Oct 2026 · kusionstack.io
Project status
The project overview calls Kusion an early project that is being iterated on quickly.Read 4 Oct 2026 · kusionstack.io
Reusable modules
Kusion modules are reusable building blocks made by platform engineers to standardize deployments and enable developer self-service.Read 4 Oct 2026 · kusionstack.io
Supported infrastructure
The overview says Kusion currently applies operations to Kubernetes, Terraform, and on-premises infrastructures.Read 4 Oct 2026 · kusionstack.io
Workflow
The documented workflow has Write, Generate, and Apply steps, with a three-way diff preview before changes are applied.Read 4 Oct 2026 · kusionstack.io

Plans and prices

Kusion Free Open source platform orchestrator · project page provides a Helm installation command Read 4 Oct 2026 · kusion.kusionstack.io

Every Kusion plan and price →

Strong points and limits

Strong points

  • Three-way diff preview appears before changes are applied.
  • Reusable modules can standardize deployments.
  • Pipeline steps can be customized with plugins.
  • CLI installation methods cover macOS, Linux, and Windows.

Limits

  • The project describes itself as early and rapidly iterated.
  • Current operations cover Kubernetes, Terraform, and on-premises infrastructure.

Who it suits

Kusion is aimed at application developers and platform engineers maintaining application infrastructure. It suits teams seeking reusable deployment modules and a declarative workflow across supported infrastructure.

Verdict

Kusion offers a declarative, client-side approach to application infrastructure with reusable modules and a preview step. Teams should weigh its early project status and listed infrastructure scope.

Where Specifiction places it

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