1.21.14-do.0

Validated on 5 Jul 2022 • Last edited on 1 Dec 2022

DigitalOcean Kubernetes (DOKS) is a Kubernetes service with a fully managed control plane, high availability, and autoscaling. DOKS integrates with standard Kubernetes toolchains and DigitalOcean’s load balancers, volumes, CPU and GPU Droplets, API, and CLI.

  • Updates to system components:

    • Updated to kernel to Linux 5.10.120.
      • This is an upgrade from Linux 4.19 on earlier DOKS 1.21 patch versions. This upgrade is necessary to address a limitation in BPF program size on kernels prior to Linux 5.1 that can lead to degraded cluster state where worker nodes are unable to provision new network namespaces for pods.
    • Updated to Kubernetes v1.21.14

  • Changes to system components:

    • Disabled Cilium’s eBPF-based NodePort handling in favor of kube-proxy’s as it does not support graceful termination properly in v1.10. (This also disables the eBPF implementations for features depending on NodePort handling in Cilium in favor of kube-proxy, namely host IP and external IP processing.)

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