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fix(doc): Fix Affinity trait examples formatting #1631

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Jul 21, 2020
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fix(doc): Fix Affinity trait examples formatting #1631

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15 changes: 11 additions & 4 deletions docs/modules/traits/pages/affinity.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -56,19 +56,26 @@ integration pod(s) should not be co-located with.
== Examples

* To schedule the integration pod(s) on a specific node using the https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#interlude-built-in-node-labels[built-in node label] `kubernetes.io/hostname`:
+
[source,shell]
$ kamel run -t affinity.node-affinity-labels="kubernetes.io/hostname in(node-66-50.hosted.k8s.tld)" ...

* To schedule a single integration pod per node (using the `Exists` operator):
+
[source,shell]
$ kamel run -t affinity.pod-anti-affinity-labels="camel.apache.org/integration" ...

* To co-locate the integration pod(s) with other integration pod(s):
+
[source,shell]
$ kamel run -t affinity.pod-affinity-labels="camel.apache.org/integration in(it1, it2)" ...

The labels options follow the requirements from https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors[Label selectors]. They can be multi-valuated, then the requirements list is ANDed, e.g., to schedule a single integration pod per node AND not co-located with the Camel K operator pod(s):
[source,shell]
$ kamel run -t affinity.pod-anti-affinity-labels="camel.apache.org/integration" -t affinity.pod-anti-affinity-labels="camel.apache.org/component=operator" ...
The `*-labels` options follow the requirements from https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors[Label selectors].
They can be multi-valuated, then the requirements list is ANDed, e.g., to schedule a single integration pod per node AND not co-located with the Camel K operator pod(s):

More information can be found in the official Kubernetes documentation about https://kubernetes.io/docs/concepts/configuration/assign-pod-node/[Assigning Pods to Nodes].
[source,shell]
----
$ kamel run -t affinity.pod-anti-affinity-labels="camel.apache.org/integration" -t affinity.pod-anti-affinity-labels="camel.apache.org/component=operator" ...
----

More information can be found in the official Kubernetes documentation about https://kubernetes.io/docs/concepts/configuration/assign-pod-node/[Assigning Pods to Nodes].