Ordering matters. `rust:1.96-slim` ships with toolchain 1.96 already installed under one identifier, but rust-toolchain.toml (channel = 1.96.0) can prompt rustup to resolve to a distinct pinned toolchain. `rustup target add` runs BEFORE rust-toolchain.toml lands, so it adds musl to the wrong toolchain — cargo's later build picks up the workspace pin and can't find core for the target. Move the COPY of rust-toolchain.toml before the rustup target add so the target lands on the toolchain cargo actually uses. Matches server.Dockerfile's known-working structure.
40 lines
1.8 KiB
Docker
40 lines
1.8 KiB
Docker
# The secret broker: its own minimal image, its own process boundary.
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# Shares the builder pattern with the server image; ships ONLY the broker
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# binary.
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FROM rust:1.96-slim AS builder
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ARG TARGETARCH
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# git + cmake are needed for the clawhdf5 git dependency (fetched via the git
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# CLI — libgit2 chokes on Gitea smart-HTTP) and its zlib-ng C build (cmake).
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends musl-tools git cmake make pkg-config \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /src
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COPY Cargo.toml Cargo.lock rust-toolchain.toml ./
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COPY crates ./crates
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COPY tools ./tools
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COPY images/seccomp ./images/seccomp
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COPY migrations ./migrations
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COPY .sqlx ./.sqlx
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# Install the musl target AFTER rust-toolchain.toml is in place, so rustup adds
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# it to the toolchain the workspace pins (channel 1.96.0), not the base image's
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# default. Doing this before the COPY installs into a toolchain cargo won't
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# actually use, and the build then fails with E0463 (no core for musl).
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RUN case "$TARGETARCH" in \
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arm64) echo aarch64-unknown-linux-musl > /rust-target ;; \
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*) echo x86_64-unknown-linux-musl > /rust-target ;; \
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esac \
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&& rustup target add "$(cat /rust-target)"
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ENV SQLX_OFFLINE=true
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# Fetch git deps with the system git (libgit2 fails against Gitea smart-HTTP);
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# build the zlib-ng C dep with the musl cross compiler for the static target.
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ENV CARGO_NET_GIT_FETCH_WITH_CLI=true \
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CC_x86_64_unknown_linux_musl=musl-gcc \
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CC_aarch64_unknown_linux_musl=musl-gcc
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RUN cargo build --release --target "$(cat /rust-target)" -p clawmates-broker \
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&& cp "target/$(cat /rust-target)/release/clawmates-broker" /clawmates-broker
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FROM scratch
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COPY --from=builder /clawmates-broker /clawmates-broker
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USER 10001:10001
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ENTRYPOINT ["/clawmates-broker"]
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