Affinity Configuration

Affinity Configuration Properties describes the properties for configuring the External Diameter Gateway affinity properties.

Table 1. Affinity Configuration Properties
Property Default Description
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution The scheduler tries to find a node that meets the rule. If a matching node is not available, the scheduler schedules the Pod.
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution.podAffinityTerm.labelSelector.matchExpressions.operator In Match the pod according to set based operator match expressions.
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution.podAffinityTerm.labelSelector.matchExpressions.values 
- proc
- publ
- ckpt 
- tralb-proc
- tralb-publ
- trart
- tradr
- network-enabler
 Match the pod according to set based value match expressions.
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution.podAffinityTerm.labelSelector.matchLabels.app diameter-gateway Match the pod according to the label.
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution.podAffinityTerm.labelSelector.matchLabels.app.kubernetes.io/instance Match the pod according to the unique name identifying the instance of an application.
gateway.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution.podAffinityTerm.topologyKey "kubernetes.io/hostname" Match the pod according to the key for the node label used to denote the domain.
The following Helm values file excerpt shows the configuration default values (where defaults exist) for these properties:
gateway:
  affinity:
    podAntiAffinity:
      preferredDuringSchedulingIgnoredDuringExecution:
        - weight: 100
          podAffinityTerm:
            labelSelector:
              matchLabels:
                app: diameter-gateway
                app.kubernetes.io/instance: <instance>
            topologyKey: "kubernetes.io/hostname"
        - weight: 100
          podAffinityTerm:
            labelSelector:
              matchExpressions:
                - key: mtx-type
                  operator: In
                  values:
                    - proc
                    - publ
                    - ckpt
                    - tralb-proc
                    - tralb-publ
                    - trart
                    - tradr
                    - network-enabler
            topologyKey: "kubernetes.io/hostname"