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docs: cert disconnected known issue (#3912)
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* docs: add known issue about cert renewal

* docs: add missing known issue

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Co-authored-by: Lenny Chen <[email protected]>
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lennessyy and lennessyy authored Sep 13, 2024
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Expand Up @@ -16,6 +16,8 @@ The following table lists all known issues that are currently active and affecti

| Description | Workaround | Publish Date | Product Component |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ | ---------------------------- |
| If an Edge host operating a cluster in connected mode loses connection to Palette, the cluster will not auto-renew its Public Key Infrastructure (PKI) certificates. When it re-establishes the connection to Palette, the Edge host will renew the certificates if the existing certificates have less than 30 days before expiry. | No workaround available. | Sep 14, 2024 | Edge |
| Using the Flannel Container Network Interface (CSI) pack together with a Red Hat Enterprise Linux (RHEL)-based provider image may lead to a pod becoming stuck during deployment. This is caused by an upstream issue with Flannel that was discovered in a K3s GitHub issue. Refer to [the K3s issue page](https://github.com/k3s-io/k3s/issues/5013) for more information. | No workaround is available | Sep 14, 2024 | Edge |
| Third-party binaries downloaded and used by the Palette CLI may become stale and incompatible with the CLI. | Refer to the [Incompatible Stale Palette CLI Binaries](../troubleshooting/automation.md#scenario---incompatible-stale-palette-cli-binaries) troubleshooting guide for workaround guidance. | September 11, 2024 | CLI |
| An issue with Edge hosts using [Trusted Boot](../clusters/edge/trusted-boot/trusted-boot.md) and encrypted drives occurs when TRIM is not enabled. As a result, Solid-State Drive and Nonvolatile Memory Express drives experience degraded performance and potentially cause cluster failures. This [issue](https://github.com/kairos-io/kairos/issues/2693) stems from [Kairos](https://kairos.io/) not passing through the `--allow-discards` flag to the `systemd-cryptsetup attach` command. | Check out the [Degreated Performance on Disk Drives](../troubleshooting/edge.md#scenario---degreated-performance-on-disk-drives) troubleshooting guide for guidance on workaround. | September 4, 2024 | Edge |
| The AWS CSI pack has a [Pod Disruption Budget](https://kubernetes.io/docs/tasks/run-application/configure-pdb/) (PDB) that allows for a maximum of one unavailable pod. This behavior causes an issue for single-node clusters as well as clusters with a single control plane node and a single worker node where the control plane lacks worker capability. [Operating System (OS) patch](../clusters/cluster-management/os-patching.md) updates may attempt to evict the CSI controller without success, resulting in the node remaining in the un-schedulable state. | If OS patching is enabled, allow the control plane nodes to have worker capability. For single-node clusters, turn off the OS patching feature. | September 4, 2024 | Cluster, Packs |
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