Karmada
karmada.io
What it is
Karmada manages cloud-native applications across multiple Kubernetes clusters and clouds without requiring changes to the applications. It supports public and private cloud, on-premises, edge, and self-built environments that meet Kubernetes specifications. Cluster connections can use Push mode through a Kubernetes API server or Pull mode through an in-cluster agent. Scheduling policies cover cluster affinity, taints and tolerations, topology spread, and replicated or divided placement. OverridePolicy allows per-cluster changes to images, arguments, commands, and plain-text configuration. Karmada can move replicas after a cluster failure, including migration that avoids service replicas dropping to zero. Through karmada-apiserver, teams can create, update, delete, and query resources across member clusters. Its components export Prometheus metrics; integrations described include Submariner networking and ErieCanal service governance. Installation options include CLI tools, Helm, an operator, binaries, or source. The CLI initialization requires escalated privileges to store shared configuration under /etc/karmada by default. Karmada is open source and free, with customer-managed control plane; it manages clusters but does not provision them.
Spec sheet
- Purpose
- Karmada manages cloud-native applications across multiple Kubernetes clusters and clouds without requiring application changes.Read 9 Oct 2026 · karmada.io
- Audience
- Karmada supports public cloud, private cloud, and self-built clusters that comply with Kubernetes specifications.Read 9 Oct 2026 · karmada.io
- Integrations
- The documentation describes cross-cluster networking with Submariner and service governance integration with ErieCanal.Read 9 Oct 2026 · karmada.io
- Security
- Karmada introduced Cosign image verification starting with the v1.7.0 release, and its security guide documents TLS settings for components.Read 9 Oct 2026 · karmada.io
- Cluster connections
- Clusters can connect in Push mode through their Kubernetes API server or Pull mode through an agent deployed in the cluster.Read 9 Oct 2026 · karmada.io
- Failover
- Karmada can migrate replicas after cluster failure and supports migration without service replicas dropping to zero.Read 9 Oct 2026 · karmada.io
- Installation
- Karmada can be installed on a user's cluster using CLI tools, Helm, an operator, binaries, or from source.Read 9 Oct 2026 · karmada.io
- Installation requirement
- The documented CLI initialization requires escalated privileges to store shared configuration under /etc/karmada by default.Read 9 Oct 2026 · karmada.io
- Monitoring
- Karmada exports Prometheus metrics from components including karmada-apiserver, controller manager, scheduler, agent, webhook, and descheduler.Read 9 Oct 2026 · karmada.io
- Overrides
- OverridePolicy supports per-cluster differences for container images, arguments, commands, and plain-text configuration.Read 9 Oct 2026 · karmada.io
- Project status
- The official site identifies Karmada as a CNCF graduated project.Read 9 Oct 2026 · karmada.io
- Resource management
- Karmada provides unified create, update, delete, and query operations across member clusters through karmada-apiserver.Read 9 Oct 2026 · karmada.io
- Scheduling
- Scheduling policies include cluster affinity, taints and tolerations, topology spread constraints, and replicated or divided replica placement.Read 9 Oct 2026 · karmada.io
- Security limitation
- The security guide says its recommendations are for reference and should be adapted to users’ circumstances and requirements.Read 9 Oct 2026 · karmada.io
Plans and prices
Strong points and limits
Strong points
- Supports Push and Pull cluster connections
- Policies cover affinity, tolerations, topology, and replica placement
- Can migrate replicas after cluster failure
- Offers unified resource operations across member clusters
- Free and open source
Limits
- Does not provision clusters
- CLI initialization needs escalated privileges by default
- Security recommendations must be adapted to local requirements
Who it suits
Karmada suits teams coordinating workloads across Kubernetes-compliant public, private, on-premises, edge, or self-built clusters. It is for operators who want centralized resource management and policy-based placement without changing applications.
Verdict
Karmada brings multi-cluster scheduling, overrides, and resource operations under a customer-managed control plane. Its scope is cluster management rather than provisioning, and CLI initialization has a default privileged configuration step.
Where Specifiction places it
- Kubernetes Management Platforms#10 of 297.9
- Cloud Orchestration Software#10 of 277.8
- Container Management Software#13 of 287.9
- Multi-Cloud Management Software#12 of 257.8