sealerio/sealer
Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) observed · 2026-08-28
Health v2 · maintenance only
34/100
- Activity 24
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 1952
- days_rel: n/a
- days_push: 456
- n_releases_24m: 0
Adoption not part of the score
2095 stars · 357 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Sealer is a CNCF CLI tool that packages a Kubernetes cluster together with all application dependencies (container images, YAML manifests, Helm charts) into a single ClusterImage built from a Kubefile. It then runs, shares, scales, and upgrades those clusters via a Clusterfile, similar to how Docker handles container images.
Use cases
- package a kubernetes cluster and apps into a single image
- deploy kubernetes in an air-gapped environment
- deliver distributed applications as one artifact
- install a k8s cluster offline in minutes
- scale or upgrade a kubernetes cluster declaratively
- share a full cluster image through a registry
When to avoid
- you only need plain container image builds (use Docker/BuildKit)
- you manage clusters with existing tools like kubeadm, kops, or Terraform and don't need image packaging
- you need managed Kubernetes rather than self-installed clusters
Facets
cli-tool · maturity active
deployment container-runtime infrastructure-as-code cli cloud-computing microservices self-hosted cli go cross-platform kubernetes clusterimage kubefile clusterfile application-delivery cncf air-gapped installer containers devops linux
1 source
- readme: https://github.com/sealerio/sealer · fetched 2026-08-28 · 417f5be3a740
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| sealerio/sealer | main | 34 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem