A Kubernetes resource quota limits the aggregate resource consumption of objects within a namespace. It provides a namespace-scoped boundary for managing shared cluster capacity and supports safer multitenancy. section 3.2.6
Namespaces form logical partitions of a cluster. Resource quotas operate within those partitions alongside RBAC, network policies, and namespace security resources, allowing tenant environments to be separated logically while sharing physical infrastructure. section 3.2.6
Use resource limits as one part of namespace-level cluster governance:
- Apply quotas at the namespace boundary rather than treating them as cluster-wide controls. section 3.2.6
- Combine quotas with RBAC, network policies, and namespace security resources when designing a safer multitenant cluster. section 3.2.6
- Distinguish Kubernetes resource quotas from Istio policy features such as rate limits and quotas, which govern service-mesh behavior. section 3.2.6 section 4.3



