add docker

Dockerfile

@@ -0,0 +1,13 @@
+# build environment
+FROM node:18 as builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# production environment
+FROM nginx:alpine
+COPY --from=builder /app/build /usr/share/nginx/html
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

frontend-k8s.yaml

@@ -0,0 +1,31 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: examples-for-kids
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: examples-for-kids
+  template:
+    metadata:
+      labels:
+        app: examples-for-kids
+    spec:
+      containers:
+      - name: examples-for-kids
+        image: examples-for-kids:latest
+        ports:
+        - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: examples-for-kids-service
+spec:
+  type: NodePort
+  ports:
+  - port: 80
+    targetPort: 80
+  selector:
+    app: examples-for-kids