34 lines
878 B
Docker
34 lines
878 B
Docker
# Stage 1: Build the Go binary
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FROM golang:1.22-alpine AS builder
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# Set the Current Working Directory inside the container
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WORKDIR /app
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# Copy go mod and sum files
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# COPY go.mod go.sum ./
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# RUN go mod download
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# Copy the source code into the container
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COPY main.go .
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# Build the Go app
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# CGO_ENABLED=0 is needed for a static build
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# GOOS=linux is to specify the target OS
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# -a installs all packages to be rebuilt
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# -installsuffix cgo is used with CGO_ENABLED=0
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# -o main specifies the output file name
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
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# Stage 2: Create the final, minimal image
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FROM alpine:latest
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WORKDIR /root/
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# Copy the Pre-built binary file from the previous stage
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COPY --from=builder /app/main .
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# Expose port 8080 to the outside world
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EXPOSE 8080
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# Command to run the executable
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CMD ["./main"] |