basic frontend (#3)

Co-authored-by: aovantsev <aovantsev@avito.ru>
Reviewed-on: #3

Dockerfile

@@ -1,5 +1,5 @@
-# Build stage
-FROM golang:1.21-alpine AS builder
+# Build stage for Go backend
+FROM golang:1.21-alpine AS go-builder
 
 WORKDIR /app
 
@@ -9,12 +9,30 @@ COPY go.mod go.sum ./
 # Download dependencies
 RUN go mod download
 
-# Copy source code
-COPY . .
+# Copy source code and environment files
+COPY *.go ./
+COPY .env* ./
 
 # Build the application
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
 
+# Build stage for React frontend
+FROM node:18-alpine AS frontend-builder
+
+WORKDIR /app/frontend
+
+# Copy package files
+COPY frontend/package*.json ./
+
+# Install dependencies (including dev dependencies for build)
+RUN npm ci
+
+# Copy source code
+COPY frontend/ ./
+
+# Build the React app
+RUN npm run build
+
 # Final stage
 FROM alpine:latest
 
@@ -23,8 +41,14 @@ RUN apk --no-cache add ca-certificates
 
 WORKDIR /root/
 
-# Copy the binary from builder stage
-COPY --from=builder /app/main .
+# Copy the Go binary from go-builder stage
+COPY --from=go-builder /app/main .
+
+# Copy environment files from go-builder stage
+COPY --from=go-builder /app/.env* ./
+
+# Copy the React build from frontend-builder stage
+COPY --from=frontend-builder /app/frontend/build ./frontend/build
 
 # Expose port
 EXPOSE 8080