75d1905998Create a separate step in the Docker image to install the dependencies. This makes local dev a bunch faster, because Docker doesn't redownload all the dependencies each time you make a small file changes.
35 lines
869 B
Docker
35 lines
869 B
Docker
FROM golang:1.24-alpine AS builder
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WORKDIR /app
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# Copy go mod files first and download dependencies
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# This creates a separate layer that only invalidates when dependencies change
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COPY go.mod go.sum ./
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RUN go mod download
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# Copy the rest of the source code
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COPY . .
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ARG GO_BUILD_TAGS
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RUN go build ${GO_BUILD_TAGS:+-tags="$GO_BUILD_TAGS"} -o /build/registry ./cmd/registry
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FROM alpine:latest
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WORKDIR /app
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COPY --from=builder /build/registry .
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COPY --from=builder /app/data/seed.json /app/data/seed.json
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# Create a non-privileged user that the app will run under.
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# See https://docs.docker.com/go/dockerfile-user-best-practices/
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ARG UID=10001
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RUN adduser \
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--disabled-password \
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--gecos "" \
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--home "/nonexistent" \
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--shell "/sbin/nologin" \
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--no-create-home \
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--uid "${UID}" \
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appuser
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USER appuser
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EXPOSE 8080
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ENTRYPOINT ["./registry"]
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