# Stage 1: Build the Go binary
FROM golang:1.22-alpine AS builder

# Set the working directory inside the container
WORKDIR /app

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

# Download and cache the Go modules
RUN go mod download

# Copy the source code into the container
COPY . .

# Build the Go binary for Linux
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o server

# Stage 2: Create the smallest possible image
FROM gcr.io/distroless/base-debian11

# Set the working directory inside the container
WORKDIR /app

# Copy the Go binary from the builder stage
COPY --from=builder /app/server .

# Expose the necessary port (replace with your server port)
EXPOSE 3000

# Command to run the binary
CMD ["./server"]