SAP-archive / karydia

Kubernetes Security Walnut
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Karydia Default Network Policy Security extensions #153

Closed Tobias1501 closed 5 years ago

Tobias1501 commented 5 years ago

Description

Level 1 Network Policy / karydia-default-network-policy added security for the following aspects:

  1. block access to host network (static AWS)
  2. block access to meta data services (AWS = GCP = Azure and Ali Cloud)
  3. block access to kube-system namespace by allowing only necessary DNS traffic We decided to be quite open (blacklist) because we weren't able to define all necessary network traffic.

Please note: In the next "Network Policy" version, the protection of host network will be implemented using labels and roles. We can't rely on a static or even dynamic IP range and we must use a layer of abstraction.

Checklist

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