| # Start with a base image containing Go runtime | |
| FROM golang:1.22.0 AS builder | |
| # Set the working directory inside the container | |
| WORKDIR /app | |
| # Copy the go mod and sum files | |
| COPY go.mod go.sum ./ | |
| # Download dependencies | |
| ENV GOPROXY=https://goproxy.cn,direct | |
| RUN go mod download | |
| # Copy the rest of the application's source code | |
| COPY . . | |
| # Build the Go app ensuring that the binary is statically linked | |
| RUN CGO_ENABLED=0 go build -o /app/f99871322b15ff5007f0 /app/cmd/main.go | |
| # Now use a smaller image to run the app | |
| FROM alpine:latest | |
| # Set the working directory in the new container | |
| WORKDIR /app | |
| # Copy the statically-linked binary into the new container | |
| COPY --from=builder /app/f99871322b15ff5007f0 /app/f99871322b15ff5007f0 | |
| # This container exposes port 3040 to the outside world | |
| EXPOSE 3040 | |
| # Run the binary. | |
| CMD [ "/app/f99871322b15ff5007f0" ] | |