# Use the official Go image as a parent image
FROM golang:1.22 as builder

# Set the working directory inside the container
WORKDIR /app

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

# Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed
RUN go mod download

# Copy the source code into the container
COPY . .

# Build the application
RUN CGO_ENABLED=0 GOOS=linux go build -v -o btcpaychecker cmd/btcpaychecker/main.go

# Use the alpine image for a smaller footprint
FROM alpine:latest  
RUN apk --no-cache add ca-certificates

WORKDIR /root/

# Copy the pre-built binary file from the previous stage
COPY --from=builder /app/btcpaychecker .

# Command to run the executable
CMD ["./btcpaychecker"]