feat(template/helm): Allow Pod priorityClassName to be configured (#551)

* chore(template): Disable yamllint for comments-indentation

* chore: Disable yamllint for comments-indentation

* feat(template/helm): Allow Pod priority, priorityClassName, and preemptionPolicy to be configured

Part of stackabletech/issues#765

* fix(template/helm): Remove priority and preemptionPolicy.

Note: These should be configured in a PriorityClass and the admission controller will stop you setting these on the pod directly.

Author: NickLarsenNZ

.yamllint.yaml

@@ -13,6 +13,7 @@ rules:
     check-keys: false
   comments:
     min-spaces-from-content: 1  # Needed due to https://github.com/adrienverge/yamllint/issues/443
+  comments-indentation: disable # This is generally useless and interferes with commented example values
 
 yaml-files:
   - '*.yaml'

template/.yamllint.yaml

@@ -12,3 +12,4 @@ rules:
     min-spaces-from-content: 1  # Needed due to https://github.com/adrienverge/yamllint/issues/443
   indentation:
     indent-sequences: consistent
+  comments-indentation: disable # This is generally useless and interferes with commented example values

template/deploy/helm/[[operator]]/templates/deployment.yaml.j2

@@ -104,6 +104,9 @@ spec:
       tolerations:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      {{- with .Values.priorityClassName }}
+      priorityClassName: {{ . }}
+      {{- end }}
 {[% else %}]
 # Templated Deployment disabled for this operator
 {[% endif %}]