FROM golang:1.21-alpine AS builder
Set the working directory
WORKDIR /app
Copy go.mod
COPY go.mod go.sum ./
Download dependencies and generate go.sum
RUN go mod download && go mod tidy
Copy the rest of the application code
COPY . .
Build the application
RUN go build -o myapp
Second stage: create the runtime image
FROM alpine:latest
Set the working directory
WORKDIR /root/
Copy the built application from the builder stage
COPY –from=builder /app/myapp .
Expose port 8080 to the outside world
EXPOSE 8080
Command to run the executable
CMD [“./myapp”]
