k8s-platform-ops

name	k8s-platform-ops
description	Operate a safe multi-tenant cluster: namespace-per-tenant with scoped RBAC (no workload cluster-admin), default-deny NetworkPolicies, resource quotas/LimitRanges, policy admission control, and tested PDB-respecting upgrades.

Kubernetes Platform Ops

Tenancy

Namespace per team/app; RBAC scoped to it. No workload gets cluster-admin.

Network

Default-deny pod-to-pod, then allow required flows. (Pairs with mesh mTLS.)

Fairness

ResourceQuota + LimitRange per namespace so no tenant starves the cluster.

Enforcement

Admission policy-as-code rejects privileged pods, missing limits, :latest. Preventive > detective.

Upgrades

Deprecated-API audit -> non-prod test -> drain respecting PDBs -> stay within version-skew -> rollback posture.