Any way to re-create rkestate file?

Kevin_Thorpe · January 6, 2020, 12:17pm

Hi, I’ve been working on cluster deployment in a gitops style.As part of a refactor I managed to lose the rkestate file for the cluster I have deployed. RKE now tries to perform an upgrade and fails to get the certs from the cluster.

I thought I was being clever and re-created rkestate from the full-cluster-state configmap. This initially looked like it was going to work but then getting bad tls certificate on the etcd /health endpoints.

Is there a way to successfully re-create the rkestate file? I’ll stash it somewhere safe in future.

jpeake · January 10, 2020, 2:17pm

I think just running rke up using your cluster.yml file will recreate rkestate, as well as the kube config file.

goshkob · April 16, 2020, 9:36pm

I use this to regenerate rkestate and then get diff with my pre rkestate. they were exactly same (except a single \n at end of file). I have create my cluster with RKE 1.1.0 and extract using rancher 2.2.x instruction in this gist.

gist.github.com

https://gist.github.com/superseb/e9f2628d1033cb20e54f6ee268683a7a#rancher-v22x

restore-rkestate-file.md

# Recover cluster.rkestate file from controlplane node

## RKE

Run on `controlplane` node, uses any found `hyperkube` image

```
docker run --rm --net=host -v $(docker inspect kubelet --format '{{ range .Mounts }}{{ if eq .Destination "/etc/kubernetes" }}{{ .Source }}{{ end }}{{ end }}')/ssl:/etc/kubernetes/ssl:ro --entrypoint bash $(docker inspect $(docker images -q --filter=label=org.label-schema.vcs-url=https://github.com/rancher/hyperkube.git) --format='{{index .RepoTags 0}}' | tail -1) -c 'kubectl --kubeconfig /etc/kubernetes/ssl/kubecfg-kube-node.yaml -n kube-system get configmap full-cluster-state -o json | jq -r .data.\"full-cluster-state\" | jq -r .' > cluster.rkestate
```

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ferdinandosimonetti · June 25, 2021, 10:07am

Hello everybody, what about needing to retrieve worker nodes’ information too?
I managed to loose both cluster.yml and cluster.rkestate (don’t ask) and now we have to perform some rework on the cluster (i.e. moving every cluster node to a different network), so being able to use rke CLI tool would be great.
We have, of course, still access to kube_config_cluster.yml.

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Any way to re-create rkestate file?

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