feat: allow setting affinity for controller manager pod (#3157)

deploy/cloud/helm/platform/README.md

@@ -62,6 +62,7 @@ The Dynamo Platform Helm chart deploys the complete Dynamo Cloud infrastructure
 | dynamo-operator.namespaceRestriction.enabled | bool | `true` | Whether to restrict operator to specific namespaces |
 | dynamo-operator.namespaceRestriction.targetNamespace | string | `nil` | Target namespace for operator deployment (leave empty for current namespace) |
 | dynamo-operator.controllerManager.tolerations | list | `[]` | Node tolerations for controller manager pods |
+| dynamo-operator.controllerManager.affinity | list | `[]` | Affinity for controller manager pods |
 | dynamo-operator.controllerManager.manager.image.repository | string | `"nvcr.io/nvidia/ai-dynamo/kubernetes-operator"` | Official NVIDIA Dynamo operator image repository |
 | dynamo-operator.controllerManager.manager.image.tag | string | `""` | Image tag (leave empty to use chart default) |
 | dynamo-operator.controllerManager.manager.image.pullPolicy | string | `"IfNotPresent"` | Image pull policy - when to pull the image |

deploy/cloud/helm/platform/components/operator/templates/deployment.yaml

@@ -45,6 +45,10 @@ spec:
       tolerations:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      {{- with .Values.controllerManager.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
       - args: {{- toYaml .Values.controllerManager.kubeRbacProxy.args | nindent
           8 }}

deploy/cloud/helm/platform/values.yaml

@@ -41,6 +41,9 @@ dynamo-operator:
     # -- Node tolerations for controller manager pods
     tolerations: []
 
+    # -- Affinity for controller manager pods
+    affinity: []
+
     manager:
       # Container image configuration for the operator manager
       image:

docs/Makefile

@@ -52,7 +52,7 @@ HELM_DOCS ?= $(LOCALBIN)/helm-docs-$(HELM_DOCS_VERSION)
 helm-docs-install: $(HELM_DOCS) ## Download helm-docs locally if necessary
 $(HELM_DOCS): $(LOCALBIN)
 	@echo "📥 Downloading helm-docs $(HELM_DOCS_VERSION)..."
-	@ARCH=$$(uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/'); \
+	@ARCH=$$(uname -m); \
 	OS=$$(uname -s | tr '[:upper:]' '[:lower:]'); \
 	curl -sSL "https://github.com/norwoodj/helm-docs/releases/download/v$(HELM_DOCS_VERSION)/helm-docs_$(HELM_DOCS_VERSION)_$${OS}_$${ARCH}.tar.gz" | \
 	tar xz -C $(LOCALBIN) helm-docs && \