Improve Taints and Tolerations example

This commit is contained in:
Léopold Jacquot
2020-11-19 22:17:34 +01:00
committed by GitHub
parent 11d11a6adc
commit 937ddcea5a
@@ -32,15 +32,15 @@ You add a taint to a node using [kubectl taint](/docs/reference/generated/kubect
For example, For example,
```shell ```shell
kubectl taint nodes node1 key=value:NoSchedule kubectl taint nodes node1 key1=value1:NoSchedule
``` ```
places a taint on node `node1`. The taint has key `key`, value `value`, and taint effect `NoSchedule`. places a taint on node `node1`. The taint has key `key1`, value `value1`, and taint effect `NoSchedule`.
This means that no pod will be able to schedule onto `node1` unless it has a matching toleration. This means that no pod will be able to schedule onto `node1` unless it has a matching toleration.
To remove the taint added by the command above, you can run: To remove the taint added by the command above, you can run:
```shell ```shell
kubectl taint nodes node1 key=value:NoSchedule- kubectl taint nodes node1 key1=value1:NoSchedule-
``` ```
You specify a toleration for a pod in the PodSpec. Both of the following tolerations "match" the You specify a toleration for a pod in the PodSpec. Both of the following tolerations "match" the
@@ -49,15 +49,15 @@ to schedule onto `node1`:
```yaml ```yaml
tolerations: tolerations:
- key: "key" - key: "key1"
operator: "Equal" operator: "Equal"
value: "value" value: "value1"
effect: "NoSchedule" effect: "NoSchedule"
``` ```
```yaml ```yaml
tolerations: tolerations:
- key: "key" - key: "key1"
operator: "Exists" operator: "Exists"
effect: "NoSchedule" effect: "NoSchedule"
``` ```
@@ -80,7 +80,7 @@ There are two special cases:
An empty `key` with operator `Exists` matches all keys, values and effects which means this An empty `key` with operator `Exists` matches all keys, values and effects which means this
will tolerate everything. will tolerate everything.
An empty `effect` matches all effects with key `key`. An empty `effect` matches all effects with key `key1`.
{{< /note >}} {{< /note >}}