37 lines
746 B
Docker
37 lines
746 B
Docker
# Pin specific version for stability
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# Use separate stage for building image
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# Use debian for easier build utilities
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FROM golang:1.19-bullseye-slim AS build
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WORKDIR /app
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# Copy only files required to install dependencies (better layer caching)
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COPY go.mod go.sum ./
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RUN go mod download
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COPY . .
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# Compile application during build rather than at runtime
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# Add flags to statically link binary
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RUN go build \
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-ldflags="-linkmode external -extldflags -static" \
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-tags netgo \
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-o api-golang
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# Use separate stage for deployable image
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FROM scratch
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# Set gin mode
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ENV GIN_MODE=release
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WORKDIR /
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# Copy the binary from the build stage
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COPY --from=build /app/api-golang api-golang
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# Indicate expected port
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EXPOSE 8080
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CMD ["/api-golang"]
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