![]() TLS should be enabled for every component that supports it to prevent traffic sniffing, verify the identity of the server, and (for mutual TLS) verify the identity of the client. This valuable cargo needs protecting from accidental leakage and malicious intent: when it's accessed, when it's at rest, and when it's being transported across the network. It has an overall view of every container and pod running on the cluster, can schedule new pods (which can include containers with root access to their parent node), and can read all the secrets stored in the cluster. ![]() Use Linux Security Features and PodSecurityPolicies Enable RBAC with Least Privilege, Disable ABAC, and Monitor Logs Starting with the control plane, building up through workload and network security, and finishing with a projection into the future of security, here is a list of handy tips to help harden your clusters and increase their resilience if compromised. Kubernetes security has come a long way since the project's inception, but still contains some gotchas.
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