30 lines
844 B
Docker
30 lines
844 B
Docker
# Start by building the application.
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FROM golang:1.21 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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# Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed
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RUN go mod download
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# Copy the source from the current directory to the Working Directory inside the container
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COPY . .
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# Build the Go app
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RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o main .
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# Start a new stage from scratch
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# Alternatively, you could use a very small base image like alpine, but scratch will be smaller
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FROM scratch
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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 the port the app runs on
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EXPOSE 8080
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# Command to run the executable
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CMD ["./main"] |