Dockerfile

# Frontend build stage
FROM node:20-alpine AS frontend-builder

WORKDIR /app/web

COPY web/package*.json ./
RUN npm ci

COPY web/ ./
RUN npm run build

# Go build stage
FROM golang:1.22-alpine AS builder

RUN apk add --no-cache gcc musl-dev

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .

# Copy frontend build to embed location
COPY --from=frontend-builder /app/web/dist ./internal/frontend/dist

RUN CGO_ENABLED=1 GOOS=linux go build -a -ldflags '-linkmode external -extldflags "-static"' -o whatsbox ./cmd/server

# Runtime stage
FROM alpine:3.19

RUN apk add --no-cache ca-certificates tzdata

WORKDIR /app

COPY --from=builder /app/whatsbox .

# Create data directory
RUN mkdir -p /app/data

# Default environment variables
ENV PORT=3000 \
    HOST=0.0.0.0 \
    DATABASE_PATH=/app/data/whatsbox.db \
    WA_SESSION_PATH=/app/data/wa_session.db \
    TEMP_DIR=/app/data/temp \
    LOG_LEVEL=info \
    LOG_FORMAT=json

EXPOSE 3000

VOLUME ["/app/data"]

CMD ["./whatsbox"]