Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
CPU limits throttle and memory limits trigger OOM kills. How requests and limits contain noisy or hostile workloads, and how to enforce them cluster wide.
Wildcards, broad ClusterRoleBindings, system:masters and pod creation rights expand access more than they look. A review list from the Kubernetes docs.
Baseline blocks known privilege escalations. Restricted adds non-root, dropped capabilities and seccomp. Here is what each level checks and which to pick.
A get on the nodes/proxy subresource can reach the kubelet API and run commands in pods, bypassing audit and admission. Here is how to find and remove it.
Namespaces isolate names and scope policies, but not nodes or kernels. What else multi-team or multi-customer clusters need, per the Kubernetes docs.
Share a cluster between trusting teams, or use dedicated clusters for hostile tenants. A decision guide on the Kubernetes soft and hard tenancy ideas.
The default pull policy depends on whether you use a tag, latest, or a digest, and is fixed at creation. Here is what that means for patching.
How imagePullSecrets work, why they are namespace scoped, and how Kubernetes verifies credentials for images already on a node. A setup checklist.
If you run your own control plane, an etcd snapshot is your cluster backup. Learn what it holds, why it is sensitive, and how to prove a restore works.
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