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k3d upstream DNS

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Dominik Chilla 2021-05-08 18:43:57 +02:00
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@ -130,6 +130,22 @@ Error: Kubernetes cluster unreachable
$ kubectl config view --raw > ~/kubeconfig-k3d.yaml
$ export KUBECONFIG=~/kubeconfig-k3d.yaml
```
If you need to change the upstream DNS-resolver:
```
kubectl -n kube-system edit configmap coredns
```
Find the line containing
```
forward . /etc/resolv.conf
```
and change the content to
```
forward . ipaddr.of.your.dns-resolver
```
Finally redeploy the CoreDNS deployment with:
`kubectl -n kube-system rollout restart deployment coredns`
**Note:** If you restart the cluster (`k3d cluster stop your-cluster` and `k3d cluster start your-cluster`), the changes will be gone!
# Namespaces and resource limits <a name="user-content-namespaces-limits"></a>
```