Dockerfile

# Start from the latest golang base image
FROM golang:1.19 as builder

# Set the Current Working Directory inside the container
WORKDIR /app

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

# 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 from the current directory to the Working Directory inside the container
COPY . .

# Build the Go app
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o rodsmutator .

######## Start a new stage from scratch #######
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/rodsmutator .
COPY tls.crt .
COPY tls.key .

# Expose port 8080 to the outside
EXPOSE 8443

# Command to run the executable
ENTRYPOINT ["./rodsmutator"]