Update helm chart to all adding topologySpreadConstraints

Signed-off-by: Lidor Ettinger <lidor.ettinger@gmail.com>

deploy/helm/clickhouse-operator/README.md

@@ -52,6 +52,7 @@ For upgrade please install CRDs separately:
 | podAnnotations | object | `{"clickhouse-operator-metrics/port":"9999","clickhouse-operator-metrics/scrape":"true","prometheus.io/port":"8888","prometheus.io/scrape":"true"}` | annotations to add to the clickhouse-operator pod, look `kubectl explain pod.spec.annotations` for details |
 | podLabels | object | `{}` | labels to add to the clickhouse-operator pod |
 | podSecurityContext | object | `{}` |  |
+| topologySpreadConstraints | list | `[]` | Topology spread constraints rely on node labels to identify the topology domain(s) that each Node is in. # Ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/ # |
 | rbac.create | bool | `true` | specifies whether cluster roles and cluster role bindings should be created |
 | secret.create | bool | `true` | create a secret with operator credentials |
 | secret.password | string | `"clickhouse_operator_password"` | operator credentials password |

deploy/helm/clickhouse-operator/templates/generated/Deployment-clickhouse-operator.yaml

@@ -193,3 +193,4 @@ spec:
       affinity: {{ toYaml .Values.affinity | nindent 8 }}
       tolerations: {{ toYaml .Values.tolerations | nindent 8 }}
       securityContext: {{ toYaml .Values.podSecurityContext | nindent 8 }}
+      topologySpreadConstraints: {{ toYaml .Values.topologySpreadConstraints | nindent 8 }}

deploy/helm/clickhouse-operator/values.yaml

@@ -114,6 +114,9 @@ affinity: {}
 # podSecurityContext - operator deployment SecurityContext, look `kubectl explain pod.spec.securityContext` for details
 
 podSecurityContext: {}
+# topologySpreadConstraints - topologySpreadConstraints affinity for scheduler pod assignment, look `kubectl explain pod.spec.topologySpreadConstraints` for details
+
+topologySpreadConstraints: []
 serviceMonitor:
   # serviceMonitor.enabled -- ServiceMonitor Custom resource is created for a (prometheus-operator)[https://github.com/prometheus-operator/prometheus-operator]
   enabled: false

dev/generate_helm_chart.sh

@@ -190,6 +190,7 @@ function update_deployment_resource() {
   yq e -i '.spec.template.spec.affinity |= "{{ toYaml .Values.affinity | nindent 8 }}"' "${file}"
   yq e -i '.spec.template.spec.tolerations |= "{{ toYaml .Values.tolerations | nindent 8 }}"' "${file}"
   yq e -i '.spec.template.spec.securityContext |= "{{ toYaml .Values.podSecurityContext | nindent 8 }}"' "${file}"
+  yq e -i '.spec.template.spec.topologySpreadConstraints |= "{{ toYaml .Values.topologySpreadConstraints | nindent 8 }}"' "${file}"
 
   for cm in $(yq e '.spec.template.spec.volumes[].configMap.name' "${file}"); do
     local prefix='{{ include \"altinity-clickhouse-operator.fullname\" . }}'