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[k8s] Fail to ssh into the head node on k8s #4461

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alex000kim opened this issue Dec 11, 2024 · 1 comment
Open

[k8s] Fail to ssh into the head node on k8s #4461

alex000kim opened this issue Dec 11, 2024 · 1 comment
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help wanted Extra attention is needed k8s Kubernetes related items

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@alex000kim
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The cluster launches and executes the task sucessfully:

sky launch -c test --cloud kubernetes -- echo hi

I fail to ssh into it:

$ ssh test
Bad stdio forwarding specification '2600:1f16:cf3:2521:cf7c::8:22'
Connection closed by UNKNOWN port 65535
@romilbhardwaj
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Thanks for the report @alex000kim! Looks like this is related to running on a k8s cluster with ipv6. Two steps for us:

  1. Replicate on our end.
  2. Fix our proxycommand script to have socat/kubectl port-forward work with ipv6.

@romilbhardwaj romilbhardwaj changed the title Fail to ssh into the head node on k8s [k8s] Fail to ssh into the head node on k8s Dec 11, 2024
@romilbhardwaj romilbhardwaj added k8s Kubernetes related items help wanted Extra attention is needed labels Dec 11, 2024
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@romilbhardwaj @alex000kim