# Stage 1: Build the Go binary
FROM golang:1.24.4-alpine AS builder

# Set working directory inside the build container
WORKDIR /app

# Copy Go module files and source code
COPY go.mod ./
RUN go mod download

COPY . .

# Build the Go binary statically
RUN CGO_ENABLED=0 GOOS=linux go build -o docker-api-proxy .

# Stage 2: Run binary in minimal container
FROM scratch

# Copy binary from builder
COPY --from=builder /app/docker-api-proxy /usr/local/bin/docker-api-proxy

# Run binary
ENTRYPOINT ["docker-api-proxy"]

# Default port
EXPOSE 80