feat(helm): add topologySpreadConstraints to kmcp deployment

helm/kmcp/templates/deployment.yaml

@@ -79,6 +79,10 @@ spec:
       affinity:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      {{- with .Values.topologySpreadConstraints }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.tolerations }}
       tolerations:
         {{- toYaml . | nindent 8 }}

helm/kmcp/tests/__snapshot__/deployment_test.yaml.snap

@@ -555,6 +555,91 @@ should include tolerations when specified:
               operator: Equal
               value: value
           volumes: []
+should include topologySpreadConstraints when specified:
+  1: |
+    apiVersion: apps/v1
+    kind: Deployment
+    metadata:
+      labels:
+        app.kubernetes.io/instance: RELEASE-NAME
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: kmcp
+        control-plane: controller-manager
+        helm.sh/chart: kmcp-1.0.0
+      name: RELEASE-NAME-controller-manager
+      namespace: NAMESPACE
+    spec:
+      replicas: 1
+      selector:
+        matchLabels:
+          app.kubernetes.io/instance: RELEASE-NAME
+          app.kubernetes.io/name: kmcp
+          control-plane: controller-manager
+      template:
+        metadata:
+          annotations:
+            kubectl.kubernetes.io/default-container: manager
+          labels:
+            app.kubernetes.io/instance: RELEASE-NAME
+            app.kubernetes.io/name: kmcp
+            control-plane: controller-manager
+        spec:
+          containers:
+            - args:
+                - --leader-elect
+                - --health-probe-bind-address=:8081
+                - --metrics-bind-address=:8443
+              command:
+                - /manager
+              image: test-repo:v1.0.0
+              imagePullPolicy: IfNotPresent
+              livenessProbe:
+                httpGet:
+                  path: /healthz
+                  port: health
+                initialDelaySeconds: 15
+                periodSeconds: 20
+              name: manager
+              ports:
+                - containerPort: 8443
+                  name: metrics
+                  protocol: TCP
+                - containerPort: 8081
+                  name: health
+                  protocol: TCP
+              readinessProbe:
+                httpGet:
+                  path: /readyz
+                  port: health
+                initialDelaySeconds: 5
+                periodSeconds: 10
+              resources:
+                limits:
+                  cpu: 500m
+                  memory: 128Mi
+                requests:
+                  cpu: 10m
+                  memory: 64Mi
+              securityContext:
+                allowPrivilegeEscalation: false
+                capabilities:
+                  drop:
+                    - ALL
+              volumeMounts: []
+          securityContext:
+            runAsNonRoot: true
+            seccompProfile:
+              type: RuntimeDefault
+          serviceAccountName: RELEASE-NAME-controller-manager
+          terminationGracePeriodSeconds: 10
+          topologySpreadConstraints:
+            - labelSelector:
+                matchLabels:
+                  app.kubernetes.io/name: kmcp
+              maxSkew: 1
+              topologyKey: topology.kubernetes.io/zone
+              whenUnsatisfiable: DoNotSchedule
+          volumes: []
 should set custom replica count:
   1: |
     apiVersion: apps/v1

helm/kmcp/tests/deployment_test.yaml

@@ -116,6 +116,23 @@ tests:
           count: 1
       - matchSnapshot: {}
 
+  - it: should include topologySpreadConstraints when specified
+    template: deployment.yaml
+    set:
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: topology.kubernetes.io/zone
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              app.kubernetes.io/name: kmcp
+      image.repository: test-repo
+      image.tag: v1.0.0
+    asserts:
+      - hasDocuments:
+          count: 1
+      - matchSnapshot: {}
+
   - it: should set security context
     template: deployment.yaml
     set:

helm/kmcp/values.yaml

@@ -81,6 +81,9 @@ tolerations: []
 # Affinity
 affinity: {}
 
+# Topology Spread Constraints
+topologySpreadConstraints: []
+
 # Service account configuration
 serviceAccount:
   # Specifies whether a service account should be created