Add isolated Luau rule engine service

deploy/helm/ai-spel-rule-engine/Chart.yaml

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+apiVersion: v2
+name: ai-spel-rule-engine
+description: Isolated, sandboxed Luau proposal evaluator
+type: application
+version: 0.1.0
+appVersion: "0.1.0"

deploy/helm/ai-spel-rule-engine/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  minReadySeconds: {{ .Values.deployment.minReadySeconds }}
+  progressDeadlineSeconds: {{ .Values.deployment.progressDeadlineSeconds }}
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: {{ .Values.deployment.maxUnavailable }}
+      maxSurge: {{ .Values.deployment.maxSurge }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ .Chart.Name }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ .Chart.Name }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      automountServiceAccountToken: false
+      {{- with .Values.image.pullSecretName }}
+      imagePullSecrets:
+        - name: {{ . | quote }}
+      {{- end }}
+      containers:
+        - name: rule-engine
+          image: "{{ .Values.image.repository }}:{{ .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: health
+              containerPort: 8080
+          env:
+            - name: HEALTH_ADDR
+              value: "0.0.0.0:8080"
+            - name: NATS_URL
+              value: {{ .Values.nats.url | quote }}
+            - name: NATS_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.nats.secretName }}
+                  key: {{ .Values.nats.usernameKey }}
+            - name: NATS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.nats.secretName }}
+                  key: {{ .Values.nats.passwordKey }}
+            - name: NATS_QUEUE_GROUP
+              value: {{ .Values.nats.queueGroup | quote }}
+            - name: RULE_MAX_CONCURRENCY
+              value: {{ .Values.runtime.maxConcurrency | quote }}
+          readinessProbe:
+            httpGet:
+              path: /health/ready
+              port: health
+            periodSeconds: 5
+            timeoutSeconds: 2
+            failureThreshold: 3
+          livenessProbe:
+            httpGet:
+              path: /health/live
+              port: health
+            periodSeconds: 10
+            timeoutSeconds: 2
+            failureThreshold: 3
+          resources: {{- toYaml .Values.resources | nindent 12 }}
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            runAsNonRoot: true
+            capabilities:
+              drop: ["ALL"]
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name }}
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: {{ .Chart.Name }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+  ports:
+    - name: health
+      port: {{ .Values.service.port }}
+      targetPort: health
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ .Release.Name }}
+spec:
+  minAvailable: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ .Chart.Name }}
+      app.kubernetes.io/instance: {{ .Release.Name }}

deploy/helm/ai-spel-rule-engine/templates/networkpolicy.yaml

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+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ .Release.Name }}
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: {{ .Chart.Name }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  policyTypes: [Egress]
+  egress:
+    - to:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/instance: ai-spel-nats
+      ports:
+        - protocol: TCP
+          port: 4222
+    - to:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: kube-system
+          podSelector:
+            matchLabels:
+              k8s-app: kube-dns
+      ports:
+        - protocol: UDP
+          port: 53
+        - protocol: TCP
+          port: 53

deploy/helm/ai-spel-rule-engine/templates/pdb.yaml

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+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ .Release.Name }}
+spec:
+  minAvailable: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ .Chart.Name }}
+      app.kubernetes.io/instance: {{ .Release.Name }}

deploy/helm/ai-spel-rule-engine/values.yaml

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+image:
+  repository: harbor.k3s.k0.nu/ai-spel/rule-engine
+  pullPolicy: Always
+  pullSecretName: harbor-pull
+replicaCount: 2
+deployment:
+  maxUnavailable: 0
+  maxSurge: 1
+  minReadySeconds: 5
+  progressDeadlineSeconds: 600
+service:
+  port: 8080
+nats:
+  url: nats://ai-spel-nats:4222
+  secretName: ai-spel-rule-engine-nats
+  usernameKey: username
+  passwordKey: password
+  queueGroup: ai-spel-rule-engine
+runtime:
+  maxConcurrency: 8
+resources:
+  requests:
+    cpu: 100m
+    memory: 128Mi
+  limits:
+    cpu: 1
+    memory: 384Mi