k8s: add frontend dockerfile + skaffold

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

kubernetes-manifests/frontend.yaml

@@ -0,0 +1,59 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  template:
+    metadata:
+      labels:
+        app: frontend
+    spec:
+      containers:
+        - name: server
+          image: frontend
+          ports:
+          - containerPort: 8080
+          env:
+          - name: PRODUCT_CATALOG_SERVICE_ADDR
+            value: "productcatalogservice:3550"
+          - name: CURRENCY_SERVICE_ADDR
+            value: "currencyservice:7000"
+          - name: CART_SERVICE_ADDR
+            value: "cartservice:7070"
+          - name: RECOMMENDATION_SERVICE_ADDR
+            value: "recommendationservice:8080"
+          - name: SHIPPING_SERVICE_ADDR
+            value: "shippingservice:50051"
+          - name: CHECKOUT_SERVICE_ADDR
+            value: "checkoutservice:5050"
+          resources:
+            requests:
+              cpu: 100m
+              memory: 64Mi
+            limits:
+              cpu: 200m
+              memory: 128Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+spec:
+  type: ClusterIP
+  selector:
+    app: frontend
+  ports:
+  - port: 80
+    targetPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend-external
+spec:
+  type: LoadBalancer
+  selector:
+    app: frontend
+  ports:
+  - port: 80
+    targetPort: 8080

skaffold.yaml

@@ -18,6 +18,8 @@ build:
     workspace: src/currencyservice
   - imageName: cartservice
     workspace: src/cartservice
+  - imageName: frontend
+    workspace: src/frontend
 deploy:
   kubectl:
     manifests:

src/frontend/Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:1.10-alpine as builder
+RUN apk add --no-cache ca-certificates git
+WORKDIR /go/src/frontend
+COPY . .
+
+# download known dependencies
+RUN go get -d github.com/google/uuid \
+    github.com/gorilla/mux \
+    google.golang.org/grpc \
+    google.golang.org/grpc/codes \
+    google.golang.org/grpc/status
+
+# other dependencies might not have listed above
+RUN go get -d ./...
+RUN go build -o /frontend .
+
+FROM alpine as release
+RUN apk add --no-cache ca-certificates
+WORKDIR /frontend
+COPY --from=builder /frontend /frontend/server
+COPY ./templates ./templates
+COPY ./static ./static
+EXPOSE 8080
+ENTRYPOINT ["/frontend/server"]