I have a pod with the label app: jenkins-master on jenkins namespace.
I also want to create an nginx deployment.
(for reasons beyond the scope of this question, the nginx deployment will reside in a different namespace)
I want these two pods to be (softly) scheduled on the same node so I am using the following pod spec in the deployment manifest
spec:
affinity:
podAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: app
operator: In
values:
- jenkins-master
How should I syntactically set the namespace value to jenkins in the above snipper?
(or even better state that I want this to be applicable across all namespaces?
You can specify optional associated list of namespaces
spec:
affinity:
podAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: app
operator: In
values:
- jenkins-master
namespaces:
- namespacename1
- namespacename2
As documented here
namespaces
string array namespaces specifies which namespaces the labelSelector applies to (matches against); null or empty list means "this pod's namespace"