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fixes troubleshooting-kubeadm references to taint node-role.kubernetes.io/master (#19293)

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* fixes troubleshooting-kubeadm references to taint node-role.kubernetes.io/master

Signed-off-by: Marshall Ford <inbox@marshallford.me>

* revert ja,zsh langs

Signed-off-by: Marshall Ford <inbox@marshallford.me>
This commit is contained in:
Marshall Ford
2020-03-11 10:13:37 -05:00
committed by GitHub
parent 29075d47cf
commit c331ff47a7
1 changed files with 3 additions and 3 deletions
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content/en/docs/setup/production-environment/tools/kubeadm/troubleshooting-kubeadm.md
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@@ -307,17 +307,17 @@ The tracking issue for this problem is [here](https://github.com/kubernetes/kube
*Note: This [issue](https://github.com/kubernetes/kubeadm/issues/1358) only applies to tools that marshal kubeadm types (e.g. to a YAML configuration file). It will be fixed in kubeadm API v1beta2.* *Note: This [issue](https://github.com/kubernetes/kubeadm/issues/1358) only applies to tools that marshal kubeadm types (e.g. to a YAML configuration file). It will be fixed in kubeadm API v1beta2.*
By default, kubeadm applies the `role.kubernetes.io/master:NoSchedule` taint to control-plane nodes. By default, kubeadm applies the `node-role.kubernetes.io/master:NoSchedule` taint to control-plane nodes.
If you prefer kubeadm to not taint the control-plane node, and set `InitConfiguration.NodeRegistration.Taints` to an empty slice, If you prefer kubeadm to not taint the control-plane node, and set `InitConfiguration.NodeRegistration.Taints` to an empty slice,
the field will be omitted when marshalling. When the field is omitted, kubeadm applies the default taint. the field will be omitted when marshalling. When the field is omitted, kubeadm applies the default taint.
There are at least two workarounds: There are at least two workarounds:
1. Use the `role.kubernetes.io/master:PreferNoSchedule` taint instead of an empty slice. [Pods will get scheduled on masters](/docs/concepts/configuration/taint-and-toleration/), unless other nodes have capacity. 1. Use the `node-role.kubernetes.io/master:PreferNoSchedule` taint instead of an empty slice. [Pods will get scheduled on masters](/docs/concepts/configuration/taint-and-toleration/), unless other nodes have capacity.
2. Remove the taint after kubeadm init exits: 2. Remove the taint after kubeadm init exits:
```bash ```bash
kubectl taint nodes NODE_NAME role.kubernetes.io/master:NoSchedule- kubectl taint nodes NODE_NAME node-role.kubernetes.io/master:NoSchedule-
``` ```
## `/usr` is mounted read-only on nodes {#usr-mounted-read-only} ## `/usr` is mounted read-only on nodes {#usr-mounted-read-only}