Expose nifi pod readiness and liveness probes in nifi-cluster helm ch…

…art (#364)

* expose nifi pod readiness and liveness config in nifi-cluster helm chart

* update changelog

* fix typo

CHANGELOG.md

@@ -2,14 +2,15 @@
 
 ### Added
 
+- [PR #345](https://github.com/konpyutaika/nifikop/pull/345) - **[Helm Chart]** Added option to include `NodePort` with custom hosts in `webProxyHosts`.
+- [PR #364](https://github.com/konpyutaika/nifikop/pull/364) - **[Helm Chart]** Added ability to configure NiFi Pod `ReadinessProbe` and `LivenessProbe` in the nifi-cluster chart.
 - [PR #367](https://github.com/konpyutaika/nifikop/pull/367) - **[Operator/NifiParameterContext]** Parameter context's secret update detection.
 
 ### Changed
 
 - [PR #340](https://github.com/konpyutaika/nifikop/pull/340) - **[Operator/NifiDataflow]** Updated the logic to stop the entire dataflow instead of just the processors when the parameter context reference is updated.
 - [PR #342](https://github.com/konpyutaika/nifikop/pull/342) - **[Operator/NifiCluster]** Updated the logic to retrieve theIP address from hostname with `curl` instead of `wget`.
 - [PR #341](https://github.com/konpyutaika/nifikop/pull/341) - **[Helm Chart]** Fixed `webProxyHosts` conversion to Yaml. Updated zookeeper dependency. Updated `ServiceMonitor` endpoints generation.
-- [PR #345](https://github.com/konpyutaika/nifikop/pull/345) - **[Helm Chart]** Added option to include `NodePort` with custom hosts in `webProxyHosts`.
 - [PR #349](https://github.com/konpyutaika/nifikop/pull/349) - **[Operator/NifiRegistryClient]** Set FlowRegistry type in RegistryClient creation.
 - [PR #350](https://github.com/konpyutaika/nifikop/pull/350) - **[Operator]** Remove optimistic lock on `Patch`.
 - [PR #352](https://github.com/konpyutaika/nifikop/pull/352) - **[Operator]** Changed default LogLevel of NiFi from `DEBUG` to `INFO`.

helm/nifi-cluster/README.md

@@ -54,6 +54,8 @@ A Helm chart for deploying NiFi clusters in Kubernetes
 | cluster.pod.annotations | object | `{}` | Annotations to apply to every pod |
 | cluster.pod.hostAliases | list | `[]` | host aliases to assign to each pod. See: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.23/#hostalias-v1-core |
 | cluster.pod.labels | object | `{}` | Labels to apply to every pod |
+| cluster.pod.livenessProbe | object | `nil` | The pod liveness probe override: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-liveness-command |
+| cluster.pod.readinessProbe | object | `nil` | The pod readiness probe override: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-readiness-probes |
 | cluster.propagateLabels | bool | `true` |  |
 | cluster.retryDurationMinutes | int | `10` | The number of minutes the operator should wait for the cluster to be successfully deployed before retrying |
 | cluster.service.annotations | object | `{}` | Annotations to apply to each nifi service |

helm/nifi-cluster/templates/nifi-cluster.yaml

@@ -27,6 +27,14 @@ spec:
     hostAliases:
     {{- toYaml .Values.cluster.pod.hostAliases | nindent 6}}
   {{- end }}
+  {{- if .Values.cluster.pod.livenessProbe -}}
+    livenessProbe:
+    {{- toYaml .Values.cluster.pod.livenessProbe | nindent 6}}
+  {{- end -}}
+  {{- if .Values.cluster.pod.readinessProbe -}}
+    readinessProbe:
+    {{- toYaml .Values.cluster.pod.readinessProbe | nindent 6}}
+  {{- end -}}
   singleUserConfiguration:
     {{- if .Values.cluster.singleUserConfiguration.enabled }}
     enabled: {{ .Values.cluster.singleUserConfiguration.enabled }}

helm/nifi-cluster/values.yaml

@@ -51,6 +51,10 @@ cluster:
     labels: {}
     # -- host aliases to assign to each pod. See: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.23/#hostalias-v1-core
     hostAliases: []
+    # -- (object) The pod readiness probe override: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-readiness-probes
+    readinessProbe: 
+    # -- (object) The pod liveness probe override: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-liveness-command
+    livenessProbe: 
 
   image: 
     repository: "apache/nifi"