hotfix: Pass .Template to common lib for tpl context

- Updated exporter-controller.yaml to include .Template in the dict
  passed to the bjw-s.common.render.controllers include.
- This is to resolve a 'cannot retrieve Template.Basepath' error
  encountered with the tpl function in older Helm versions (like v3.10.0 in CI)
  when the tpl context does not contain the .Template object.

.github/workflows/ci.yaml

@@ -19,7 +19,16 @@ jobs:
       - name: Set up Helm
         uses: azure/setup-helm@v3
         with:
-          version: v3.10.0
+          version: v3.10.0 # Using a specific version, can be updated
+
+      - name: Add Helm repositories
+        run: |
+          helm repo add bjw-s https://bjw-s-labs.github.io/helm-charts/ --force-update
+          helm repo add prometheus-community https://prometheus-community.github.io/helm-charts --force-update
+          helm repo update
+
+      - name: Build Helm chart dependencies
+        run: helm dependency build ./charts/iperf3-monitor
 
       - name: Helm Lint
         run: helm lint ./charts/iperf3-monitor

charts/iperf3-monitor/templates/exporter-controller.yaml

@@ -45,7 +45,7 @@ Proceed with modifications only if the exporter controller is defined.
     {{- $_ := set $baseExporterEnv "IPERF_SERVER_NAMESPACE" (dict "valueFrom" (dict "fieldRef" (dict "fieldPath" "metadata.namespace"))) -}}
     {{- $_ := set $baseExporterEnv "IPERF_TEST_TIMEOUT" ($exporterControllerConfig.appConfig.testTimeout | default "10" | toString) -}}
     {{- $serverLabelSelectorDefault := printf "app.kubernetes.io/name=%s,app.kubernetes.io/instance=%s,app.kubernetes.io/component=server" $appName $release.Name -}}
-    {{- $serverLabelSelector := tpl ($exporterControllerConfig.appConfig.serverLabelSelector | default $serverLabelSelectorDefault) (dict "Release" $release "Chart" $chart "Values" $localValues) -}}
+    {{- $serverLabelSelector := tpl ($exporterControllerConfig.appConfig.serverLabelSelector | default $serverLabelSelectorDefault) . -}}
     {{- $_ := set $baseExporterEnv "IPERF_SERVER_LABEL_SELECTOR" $serverLabelSelector -}}
   {{- end -}}
 
@@ -124,6 +124,6 @@ Ensure defaultPodOptionsStrategy exists, as common lib expects it at the root of
 Call the common library's main render function for controllers.
 This function iterates through all controllers defined under $localValues.controllers
 (in our case, just "exporter") and renders them using their specified type and configuration.
-The context passed must mirror the global Helm context, including 'Values', 'Chart', 'Release', and 'Capabilities'.
+The context passed must mirror the global Helm context, including 'Values', 'Chart', 'Release', 'Capabilities', and 'Template'.
 */}}
-{{- include "bjw-s.common.render.controllers" (dict "Values" $localValues "Chart" $chart "Release" $release "Capabilities" .Capabilities) | nindent 0 -}}
+{{- include "bjw-s.common.render.controllers" (dict "Values" $localValues "Chart" $chart "Release" $release "Capabilities" .Capabilities "Template" .Template) | nindent 0 -}}

charts/iperf3-monitor/values.yaml

@@ -198,7 +198,8 @@ networkPolicy:
 
 # Dependency Configuration (for Prometheus Operator)
 dependencies:
-  # -- If true, install Prometheus operator dependency (used if serviceMonitor.enabled=true).
-  install: true
-  # -- If true, use TrueCharts Prometheus Operator instead of kube-prometheus-stack.
+  # -- Set to false by default. Set to true to install a Prometheus operator dependency (used if serviceMonitor.enabled=true).
+  # -- If false (default), and serviceMonitor.enabled is true, you must have a compatible Prometheus Operator already running in your cluster.
+  install: false
+  # -- If true, use TrueCharts Prometheus Operator instead of kube-prometheus-stack (used if dependencies.install is true).
   useTrueChartsPrometheusOperator: false