https://github.com/detiber/reproducer

https://github.com/detiber/reproducer

Last synced: 7 days ago
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• Host: GitHub
• URL: https://github.com/detiber/reproducer
• Owner: detiber
• Created: 2021-01-20T16:27:57.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2021-01-20T16:28:58.000Z (almost 4 years ago)
• Last Synced: 2024-11-07T20:54:57.762Z (about 2 months ago)
• Language: Starlark
• Size: 22.5 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Reproducer

## Prerequisites

### Standalone tools

- [kind](https://kind.sigs.k8s.io/) (v0.8.0+, Tested with v0.9.0)

- [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) (tested with v1.18.8)

- [tilt](https://tilt.dev) (v0.17.8+, tested with v0.17.9)

## Setup

- Bring up a new kind cluster

```sh

kind create cluster

```

- Start tilt

```sh

tilt up

```

## Bring up the worker VM

```sh

kubectl create -f deploy/kind/worker.yaml

```

## What is expected

Worker vm is created and has an interface attached to a macvtap network via l2 connectivity

## What happens

virt-launcher pod fails to create with the following error:

```sh

  Warning  Failed          12s   kubelet, kind-control-plane  Error: failed to generate container "3059716e18ca6af8de9c131d0fb190fc24f6ef2079b0215a62907e0138c910bc" spec: failed to generate spec: lstat /dev/tap14: no such file or director

```

- Shelling into the kind container (`docker exec -it kind-control-plane bash`), /dev/tap14 does not exist

- On the host machine, /dev/tap14 is present

It appears that either macvtap-cni is creating the tap device on the physical host rather than in the kind-control-plane container where the kubelet (and the device plugin) are running.

## Teardown

```sh

kind delete cluster

```