Feat: Add "extraManifests" template

Feat: Condition the requirement of the organizationURL parameter to the creation of the provided k8s secret
Fix: Remove template from extraManifests generation
Quality: Code quality
Fix: Helm syntax

src/helm/azure-pipelines-agent/templates/NOTES.txt

@@ -1,4 +1,8 @@
+{{- if (.Values.secret.create) -}}
 Check your Azure DevOps portal at to manage the Azure Pipelines Agent ({{ .Values.pipelines.organizationURL | quote | required "A value for .Values.pipelines.organizationURL is required" }}/_settings/agentpools).
+{{- else -}}
+Secret creation disabled, remember to create/update the secret {{ include "azure-pipelines-agent.secretName" . | quote }} and that the fields personalAccessToken and organizationURL are required
+{{- end -}}
 
 {{- if and (.Values.autoscaling.enabled) (.Capabilities.APIVersions.Has "keda.sh/v1alpha1") -}}
 Your cluster is KEDA enabled, your pipelines agents will scale based on your usage. When you won't use them, they will be automatically removed.

src/helm/azure-pipelines-agent/templates/extra-manifests.yaml

@@ -0,0 +1,4 @@
+{{ range .Values.extraManifests }}
+{{- toYaml . }}
+---
+{{ end }}

src/helm/azure-pipelines-agent/values.yaml

@@ -131,3 +131,16 @@ extraVolumeMounts: []
 #     image: busybox
 #     command: ["/bin/sh", "-c", "echo Hello World"]
 initContainers: []
+
+## Extra manifests to deploy as an array
+extraManifests:
+  []
+
+  # - apiVersion: v1
+  #   kind: Secret
+  #   metadata:
+  #   labels:
+  #     name: azure-pipeline-secret
+  #   data:
+  #     personalAccessToken: "value"
+  #     organizationURL: "value"