feat: Add CI/CD pipeline with Docker build and K8s deployment

Add Dockerfile (multi-stage, python:3.11-slim + uv), K8s manifests
(Deployment + Service), and extend CI workflow with build-push-deploy
stages targeting Gitea registry and K3s.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

k8s/deployment.yaml

@@ -0,0 +1,55 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: haproxy-mcp
+  namespace: default
+  labels:
+    app: haproxy-mcp
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: haproxy-mcp
+  template:
+    metadata:
+      labels:
+        app: haproxy-mcp
+    spec:
+      imagePullSecrets:
+        - name: gitea-registry
+      containers:
+        - name: haproxy-mcp
+          image: gitea.anvil.it.com/kaffa/haproxy-mcp:latest
+          ports:
+            - containerPort: 8000
+              protocol: TCP
+          env:
+            - name: MCP_HOST
+              value: "0.0.0.0"
+            - name: MCP_PORT
+              value: "8000"
+            - name: HAPROXY_HOST
+              value: "10.253.100.107"
+            - name: HAPROXY_PORT
+              value: "9999"
+            - name: LOG_LEVEL
+              value: "INFO"
+          readinessProbe:
+            httpGet:
+              path: /mcp
+              port: 8000
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /mcp
+              port: 8000
+            initialDelaySeconds: 10
+            periodSeconds: 30
+          resources:
+            requests:
+              memory: "128Mi"
+              cpu: "100m"
+            limits:
+              memory: "256Mi"
+              cpu: "500m"

k8s/service.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: haproxy-mcp
+  namespace: default
+  labels:
+    app: haproxy-mcp
+spec:
+  type: ClusterIP
+  selector:
+    app: haproxy-mcp
+  ports:
+    - port: 8000
+      targetPort: 8000
+      protocol: TCP
+      name: mcp