Toleration Trait

This trait sets Tolerations over Integration pods. Tolerations allow (but do not require) the pods to schedule onto nodes with matching taints. See https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/ for more details.

The toleration should be expressed in a similar manner that of taints, i.e., Key[=Value]:Effect[:Seconds], where values in square brackets are optional.

For examples:

node-role.kubernetes.io/master:NoSchedule
node.kubernetes.io/network-unavailable:NoExecute:3000
disktype=ssd:PreferNoSchedule

It’s disabled by default.

This trait is available in the following profiles: Kubernetes, Knative, OpenShift.

Configuration

Trait properties can be specified when running any integration with the CLI:

$ kamel run --trait toleration.[key]=[value] --trait toleration.[key2]=[value2] integration.yaml

The following configuration options are available:

Property Type Description

Property	Type	Description
`toleration.enabled`	`bool`	Can be used to enable or disable a trait. All traits share this common property.
`toleration.taints`	`[]string`	The list of taints to tolerate, in the form `Key[=Value]:Effect[:Seconds]`

toleration.enabled

bool

Can be used to enable or disable a trait. All traits share this common property.

toleration.taints

[]string

The list of taints to tolerate, in the form Key[=Value]:Effect[:Seconds]

Examples

To tolerate the integration pod(s) to be scheduled on the master node:

$ kamel run -t toleration.taints="node-role.kubernetes.io/master:NoSchedule" ...

To tolerate the integration pod(s) executing on a node with network not available for 300 seconds:
```
$ kamel run -t toleration.taints="node.kubernetes.io/network-unavailable:NoExecute:300" ...
```
To tolerate the integration pod(s) to be scheduled on a node with a disk of SSD type:
```
$ kamel run -t toleration.taints="disktype=ssd:PreferNoSchedule" ...
```