# clastix/kamaji

Kamaji is the Hosted Control Plane Manager for Kubernetes.

Repository: https://github.com/clastix/kamaji
Canonical: https://ross.abutalabs.com/products/kamaji
Homepage: https://kamaji.clastix.io
Language: Go
License: Apache-2.0
License Family: permissive
Topics: kubernetes, k8s, cluster, kubernetes-cluster, managed-kubernetes, multi-cluster, kubernetes-multitenancy, kubernetes-in-kubernetes, virtual-cluster, multi-tenancy, aws, azure, baremetal, cloud-native, gcp, openstack, hard-multitenancy
Last push: 2026-08-26T20:54:10+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 1721, "days_push": 7, "days_rel": 9, "gap_med": 7.0, "n_releases_24m": 67}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2013, forks 212 (observed 2026-08-28T04:06:05.356487+00:00)

## What it is
Kamaji is a Kubernetes operator that manages hosted Kubernetes control planes, running control plane components as pods inside a management cluster instead of on dedicated machines. It exposes TenantControlPlane and Datastore CRDs to provision, scale, and upgrade many isolated Kubernetes clusters cheaply and quickly.

## Use cases
- run multiple isolated kubernetes clusters on one management cluster
- build a kubernetes-as-a-service platform
- provide hard multi-tenancy with dedicated control planes per tenant
- reduce cost of running many kubernetes control planes
- provision tenant clusters in seconds with fast version upgrades
- manage control planes across bare metal, AWS, Azure, GCP, and OpenStack
- integrate cluster api providers for automated tenant cluster lifecycle

## When to choose
- you operate many kubernetes clusters and want to cut control plane infrastructure costs
- you need strict tenant isolation with dedicated control planes rather than namespace-level multitenancy
- you want unmodified upstream Kubernetes with kubeadm-based bootstrapping
- you need infrastructure-agnostic worker nodes across hybrid and multi-cloud environments

## When to avoid
- you only need a single kubernetes cluster
- you want namespace-level soft multitenancy like vcluster-style lightweight virtual clusters
- you cannot run a management cluster with CNI, CSI, and LoadBalancer support
- you prefer fully managed offerings like EKS, GKE, or AKS without self-managed control planes

## Facets
- artifact type: service
- maturity: active
- function: container-orchestration, deployment, microservices, configuration-management, self-hosted
- domain: cloud-computing, infrastructure-as-code, self-hosted, microservices
- platform: go, cloud, self-hosted
- tags: hosted-control-plane, multi-tenancy, tenant-control-plane, kubernetes-in-kubernetes, cluster-api, etcd, kubeadm, multi-cluster, virtual-cluster, containers, devops, kubernetes, docker, linux

## Member repositories
- clastix/kamaji (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:05.356487+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:00:54.772348+00:00, confidence not recorded.
  - readme: https://github.com/clastix/kamaji (fetched 2026-08-28T04:06:05.356487+00:00, sha 4cb5131b8e06)
  - homepage: https://kamaji.clastix.io (fetched 2026-08-29T10:41:00.333298+00:00, sha 5c6042400ccb)
  - site_page: https://kamaji.clastix.io/getting-started (fetched 2026-08-29T10:41:00.336086+00:00, sha 30413ab05f48)
  - site_page: https://kamaji.clastix.io/getting-started/kamaji-kind (fetched 2026-08-29T10:41:00.337743+00:00, sha 370041681342)
  - site_page: https://kamaji.clastix.io/getting-started/kamaji-generic (fetched 2026-08-29T10:41:00.339754+00:00, sha 0119394865e3)
  - site_page: https://kamaji.clastix.io/getting-started/kamaji-aws (fetched 2026-08-29T10:41:00.341798+00:00, sha f063fc1f131e)
  - site_page: https://kamaji.clastix.io/getting-started/kamaji-azure (fetched 2026-08-29T10:41:00.343784+00:00, sha ddce0e984177)
  - site_page: https://kamaji.clastix.io/reference/versioning (fetched 2026-08-29T10:41:00.345688+00:00, sha 9d1d6a6dc316)
- Data as of 2026-08-30T08:39:29.467469+00:00.