Projectsveltos
Deploy and manage add-ons and applications on a fleet of Kubernetes clusters
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Sveltos is an open-source controller that deploys and manages Kubernetes add-ons and applications across a fleet of clusters.
- for
- DevOps and platform engineers managing multi-cluster Kubernetes environments
- pricing
- open source
Key features
- Orchestrated Deployment Order — Deploy resources in a defined sequence using custom resources for predictable rollouts.
- Multitenancy — Use ClusterProfile and Profile CRDs for fleet-wide policies and namespace-scoped isolation.
- Templating — Define add-ons as templates and instantiate per-cluster with metadata-driven values.
- Event-Driven Framework — Trigger deployments from in-cluster or NATS events using Lua or CEL matching.
- Observability — Send notifications to Slack, Teams, Discord, Webex, Telegram, SMTP or Kubernetes events.
- Pull Mode for Restricted Environments — Deploy to air-gapped, edge or firewalled clusters with lightweight agents.
- Progressive Rollouts — Stage phased deployments from a single configuration without multiple profiles.
- Job-Based Checks — Run health-checking jobs inside clusters and use outcomes for verdicts.
Use cases
- Deploy a Helm chart to hundreds of clusters with per-cluster values
- Run edge-optimized agents that only watch needed resources
- Automate progressive rollouts of critical add-ons across cloud and on-prem clusters
Projectsveltos FAQ
Does Sveltos replace GitOps tools like ArgoCD or Flux?+
No, Sveltos complements them by taking manifests from GitOps controllers and distributing them across the fleet.
How does Sveltos target clusters?+
It uses label-based matching, so a single configuration applies to any cluster with matching labels.
Can Sveltos work in air-gapped or edge environments?+
Yes, its Pull Mode and lightweight agents are designed for restricted, edge, or firewalled clusters.
What formats are supported for add-ons?+
Sveltos supports Helm charts, raw YAML/JSON, Kustomize, Carvel ytt, and Jsonnet.
Where can I get community support?+
Join the #projectsveltos Slack channel or open issues on the GitHub repository.
Summarized by DevHunt from projectsveltos.github.io · Sep 27, 2026. Details may change; check the official site.
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