Skupper

Spec sheet

Product

Skupper is an application interconnect for building private networks across multiple sites and platforms.Read 4 Oct 2026 · skupper.io

Platforms

The current installation guide lists Kubernetes and local systems using Podman, Docker, or Linux.Read 4 Oct 2026 · skupper.io

Deployment

On Kubernetes, the controller can be installed using YAML, Helm charts, or an Operator; local-system sites require the CLI.Read 4 Oct 2026 · skupper.io

API

The site shows a declarative API with Site, Listener, and Connector resources for defining sites and service exposure.Read 4 Oct 2026 · skupper.io

Security

Skupper secures router connections with mutual TLS using a private, dedicated certificate authority, and uniquely identifies each router with its own certificate.Read 4 Oct 2026 · skupper.io

Support

The project directs users to its Google Groups mailing list for questions and GitHub issues for bugs and enhancement requests.Read 4 Oct 2026 · skupper.io

License

Skupper is an open-source project licensed under Apache License 2.0.Read 4 Oct 2026 · skupper.io

Connectivity

Skupper forwards local service traffic to remote clusters through a secure virtual application network.Read 4 Oct 2026 · skupper.io

Current release

The releases page identifies Skupper 2.2.2, released on 17 August 2026, as the latest release.Read 4 Oct 2026 · skupper.io

Exposure

The maker says Skupper networks are isolated from external access and application services are not exposed on the public internet.Read 4 Oct 2026 · skupper.io

Failover

Skupper reroutes traffic to available sites when a workload becomes unavailable, but it does not orchestrate failover for stateful applications that need ordered redirection.Read 4 Oct 2026 · skupper.io

Failover limit

Skupper does not provide orchestrated failover for stateful applications that require control over traffic redirection order; that orchestration must be implemented separately.Read 4 Oct 2026 · skupper.io

Isolation

Skupper creates isolated application-focused networks with logical service addresses.Read 4 Oct 2026 · skupper.io

Kubernetes installation

The controller can be installed from YAML manifests, Helm charts, or an Operator; cluster-scoped installation requires cluster-admin access.Read 4 Oct 2026 · skupper.io

Load balancing

Skupper balances new TCP connections across workloads in distinct sites and reroutes traffic when a workload becomes unavailable.Read 4 Oct 2026 · skupper.io

Load balancing strategies

Multi-key listeners support weighted distribution and priority-based failover across routing keys.Read 4 Oct 2026 · skupper.io

Management

Sites and service exposure can be managed through a CLI or declarative YAML workflows.Read 4 Oct 2026 · skupper.io

Network model

Skupper routers carry application messages between services at different sites, with routing patterns including anycast and multicast.Read 4 Oct 2026 · skupper.io

Routing

Skupper supports cross-site routing and can distribute requests among service instances according to capacity and configured link costs.Read 4 Oct 2026 · skupper.io

Use cases

The site lists remote resource access, platform migration, application resiliency, and highly distributed applications as use cases.Read 4 Oct 2026 · skupper.io

Where Specifiction places it

• Container Networking Software#19 of 287.1