chore: Add telemetry support for Helm (#610)

* chore: Generated commit to update templated files since the last template run up to stackabletech/operator-templating@1ba8fc4

Reference-to: stackabletech/operator-templating@1ba8fc4 (Telemetry support for Helm)

* chore(helm): Add default telemetry values

* chore(helm): Disable fileLog by default, set maxFiles to 6

---------

Co-authored-by: Techassi <[email protected]>

Author: stackable-bot

Diff for: deploy/helm/airflow-operator/templates/_telemetry.tpl

@@ -0,0 +1,59 @@
+{{/*
+Create a list of telemetry related env vars.
+*/}}
+{{- define "telemetry.envVars" -}}
+{{- with .Values.telemetry }}
+{{- if not .consoleLog.enabled }}
+- name: CONSOLE_LOG_DISABLED
+  value: "true"
+{{- end }}
+{{- if .consoleLog.level }}
+- name: CONSOLE_LOG_LEVEL
+  value: {{ .consoleLog.level }}
+{{ end }}
+{{- if .consoleLog.format }}
+- name: CONSOLE_LOG_FORMAT
+  value: {{ .consoleLog.format }}
+{{ end }}
+{{- if .fileLog.enabled }}
+- name: FILE_LOG_DIRECTORY
+  value: /stackable/logs/{{ include "operator.appname" $ }}
+{{- end }}
+{{- if .fileLog.level }}
+- name: FILE_LOG_LEVEL
+  value: {{ .fileLog.level }}
+{{- end }}
+{{- if .fileLog.rotationPeriod }}
+- name: FILE_LOG_ROTATION_PERIOD
+  value: {{ .fileLog.rotationPeriod }}
+{{- end }}
+{{- if .fileLog.maxFiles }}
+- name: FILE_LOG_MAX_FILES
+  value: {{ .fileLog.maxFiles }}
+{{- end }}
+{{- if .otelLogExporter.enabled }}
+- name: OTEL_LOG_EXPORTER_ENABLED
+  value: "true"
+{{- end }}
+{{- if .otelLogExporter.level }}
+- name: OTEL_LOG_EXPORTER_LEVEL
+  value: {{ .otelLogExporter.level }}
+{{- end }}
+{{- if .otelLogExporter.endpoint }}
+- name: OTEL_EXPORTER_OTLP_LOGS_ENDPOINT
+  value: {{ .otelLogExporter.endpoint }}
+{{- end }}
+{{- if .otelTraceExporter.enabled }}
+- name: OTEL_TRACE_EXPORTER_ENABLED
+  value: "true"
+{{- end }}
+{{- if .otelTraceExporter.level }}
+- name: OTEL_TRACE_EXPORTER_LEVEL
+  value: {{ .otelTraceExporter.level }}
+{{- end }}
+{{- if .otelTraceExporter.endpoint }}
+- name: OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+  value: {{ .otelTraceExporter.endpoint }}
+{{- end }}
+{{- end }}
+{{- end }}

Diff for: deploy/helm/airflow-operator/templates/deployment.yaml

@@ -51,6 +51,7 @@ spec:
             - name: KUBERNETES_CLUSTER_DOMAIN
               value: {{ .Values.kubernetesClusterDomain | quote }}
             {{- end }}
+            {{- include "telemetry.envVars" . | nindent 12 }}
       volumes:
         - name: config-spec
           configMap:

Diff for: deploy/helm/airflow-operator/values.yaml

@@ -45,3 +45,17 @@ affinity: {}
 # When running on a non-default Kubernetes cluster domain, the cluster domain can be configured here.
 # See the https://docs.stackable.tech/home/stable/guides/kubernetes-cluster-domain guide for details.
 # kubernetesClusterDomain: my-cluster.local
+
+# See all available options and detailed explanations about the concept here:
+# https://docs.stackable.tech/home/stable/concepts/telemetry/
+telemetry:
+  consoleLog:
+    enabled: true
+  fileLog:
+    enabled: false
+    rotationPeriod: hourly
+    maxFiles: 6
+  otelLogExporter:
+    enabled: false
+  otelTraceExporter:
+    enabled: false