build: add dockerfile and k8s manifests

deploy/Dockerfile

@@ -0,0 +1,13 @@
+# Build stage
+FROM golang:1.24-alpine AS builder
+WORKDIR /app
+COPY ./ .
+RUN go build -o metrics-counter .
+
+# Runtime stage
+FROM alpine:latest
+WORKDIR /app
+COPY --from=builder /app/metrics-counter .
+EXPOSE 8080
+
+CMD ["./metrics-counter"]

deploy/k8s/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: metrics-counter
+  namespace: metrics-counter
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: metrics-counter
+  template:
+    metadata:
+      labels:
+        app: metrics-counter
+    spec:
+      containers:
+      - name: metrics-counter
+        image: docker.io/sigthror/metrics-counter:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 8080
+        resources:
+          requests:
+            memory: "64Mi"
+            cpu: "50m"
+          limits:
+            memory: "128Mi"
+            cpu: "100m"

deploy/k8s/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: metrics-counter

deploy/k8s/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: metrics-counter
+  namespace: metrics-counter
+spec:
+  selector:
+    app: metrics-counter
+  ports:
+    - protocol: TCP
+      port: 8080
+      targetPort: 8080