Dockerfile

# Multi-stage Dockerfile for MVG Observer
# Stage 1: Build the frontend
FROM node:24-alpine AS frontend-builder

WORKDIR /app

# Copy package files
COPY frontend/package.json frontend/pnpm-lock.yaml ./

# Install dependencies
RUN npm install -g pnpm && pnpm install --frozen-lockfile

# Copy frontend source
COPY frontend/app ./app
COPY frontend/public ./public
COPY frontend/vite.config.ts ./
COPY frontend/tsconfig.json ./
COPY frontend/tailwind.config.ts ./
COPY frontend/postcss.config.js ./

# Build the frontend
RUN pnpm build

# Stage 2: Build the backend
FROM golang:1.24-alpine AS backend-builder

WORKDIR /app

# Install build dependencies
RUN apk add --no-cache git

# Copy go mod files
COPY backend/go.mod backend/go.sum ./

# Download dependencies
RUN go mod download

# Copy backend source
COPY backend/ ./

# Copy the built frontend from the previous stage
COPY --from=frontend-builder /app/build ./build

# Build the Go binary with embedded static files
RUN GOOS=linux go build -ldflags="-w -s" -o mvg-observer .

# Stage 3: Final runtime image
FROM scratch

#WORKDIR /root/

# Copy the binary from builder stage
COPY --from=backend-builder /app/mvg-observer .

# Expose port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:8080/api/health || exit 1

# Run the binary
CMD ["./mvg-observer"]