2024-09-16 12:38:41 +02:00
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####################################################################################################
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## Builder
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####################################################################################################
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FROM rust:latest AS builder
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RUN rustup target add x86_64-unknown-linux-musl
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RUN apt update && apt install -y musl-tools musl-dev
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RUN update-ca-certificates
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# Create appuser
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ENV USER=small-rust
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ENV 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 "${UID}" \
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"${USER}"
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WORKDIR /app
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COPY ./ .
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RUN cargo build --target x86_64-unknown-linux-musl --release
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####################################################################################################
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## Final image
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####################################################################################################
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FROM scratch
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# Import from builder.
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COPY --from=builder /etc/passwd /etc/passwd
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COPY --from=builder /etc/group /etc/group
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WORKDIR /app
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# Copy our build
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COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/small-rust ./
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# Use an unprivileged user.
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USER small-rust:small-rust
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CMD ["/app/small-rust"]
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2024-09-16 12:38:41 +02:00
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####################################################################################################
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## Alternatively use this builder (image size actually bigger)
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####################################################################################################
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#FROM rust:1-alpine3.19 AS builder
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#
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#RUN rustup update nightly; rustup default nightly;
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#
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## Create appuser
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#ENV USER=small-rust
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#ENV UID=10001
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#
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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 "${UID}" \
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# "${USER}"
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#
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#RUN apk add --no-cache musl-dev
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#
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#WORKDIR /app
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#
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#COPY ./ /app
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#
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#RUN cargo build --release
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#
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