mar-755-KK / Dockerfile
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# 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" ]