helm-charts/charts/library/common/test-chart/unittests/pod/field_affinity_test.yaml

---
# yaml-language-server: $schema=https://raw.githubusercontent.com/helm-unittest/helm-unittest/main/schema/helm-testsuite.json
suite: pod affinity
templates:
  - common.yaml
values:
  - ../_values/controllers_main_default_container.yaml
tests:
  - it: affinity is not present by default
    documentSelector: &DeploymentSelector
      path: $[?(@.kind == "Deployment")].metadata.name
      value: RELEASE-NAME
    asserts:
      - notExists:
          path: spec.template.spec.affinity

  - it: affinity can be set with defaultPodOption
    set:
      defaultPodOptions:
        affinity:
          nodeAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
              nodeSelectorTerms:
                - matchExpressions:
                    - key: topology.kubernetes.io/zone
                      operator: In
                      values:
                        - antarctica-east1
                        - antarctica-west1
    documentSelector: *DeploymentSelector
    asserts:
      - equal:
          path: spec.template.spec.affinity
          value:
            nodeAffinity:
              requiredDuringSchedulingIgnoredDuringExecution:
                nodeSelectorTerms:
                  - matchExpressions:
                      - key: topology.kubernetes.io/zone
                        operator: In
                        values:
                          - antarctica-east1
                          - antarctica-west1

  - it: affinity can be set with defaultPodOption and overridden on pod level
    set:
      defaultPodOptions:
        affinity:
          nodeAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
              nodeSelectorTerms:
                - matchExpressions:
                    - key: topology.kubernetes.io/zone
                      operator: In
                      values:
                        - antarctica-east1
                        - antarctica-west1
      controllers:
        main:
          pod:
            affinity:
              nodeAffinity:
                requiredDuringSchedulingIgnoredDuringExecution:
                  nodeSelectorTerms:
                    - matchExpressions:
                        - key: topology.kubernetes.io/zone
                          operator: In
                          values:
                            - asia-east1
                            - asia-west1
    documentSelector: *DeploymentSelector
    asserts:
      - equal:
          path: spec.template.spec.affinity
          value:
            nodeAffinity:
              requiredDuringSchedulingIgnoredDuringExecution:
                nodeSelectorTerms:
                  - matchExpressions:
                      - key: topology.kubernetes.io/zone
                        operator: In
                        values:
                          - asia-east1
                          - asia-west1

  - it: affinity can be configured with templated valued
    set:
      controllers:
        main:
          pod:
            affinity:
              podAntiAffinity:
                requiredDuringSchedulingIgnoredDuringExecution:
                  - labelSelector:
                      matchExpressions:
                        - key: app
                          operator: In
                          values:
                            - "{{ .Release.Name }}"
                    topologyKey: kubernetes.io/hostname
    documentSelector: *DeploymentSelector
    asserts:
      - equal:
          path: spec.template.spec.affinity
          value:
            podAntiAffinity:
              requiredDuringSchedulingIgnoredDuringExecution:
                - labelSelector:
                    matchExpressions:
                      - key: app
                        operator: In
                        values:
                          - RELEASE-NAME
                  topologyKey: kubernetes.io/hostname