fix(base-reth): add mold linker (#992)

Author: danyalprout

reth/Dockerfile

@@ -1,3 +1,5 @@
+ARG RUST_VERSION=1.93
+
 FROM golang:1.24 AS op
 
 RUN curl -sSfL 'https://just.systems/install.sh' | bash -s -- --to /usr/local/bin
@@ -13,16 +15,39 @@ RUN . /tmp/versions.env && git clone $OP_NODE_REPO --branch $OP_NODE_TAG --singl
 RUN . /tmp/versions.env && cd op-node && \
     make VERSION=$OP_NODE_TAG op-node
 
-FROM rust:1.88 AS reth-base
+FROM public.ecr.aws/docker/library/rust:${RUST_VERSION}-trixie AS rust-builder-base
 
 WORKDIR /app
 
-COPY versions.env /tmp/versions.env
+ARG MOLD_VERSION=2.40.4
+ARG MOLD_SHA256_AARCH64=c799b9ccae8728793da2186718fbe53b76400a9da396184fac0c64aa3298ec37
+ARG MOLD_SHA256_ARM=d82792748a81202423ddd2496fc8719404fe694493abdef691cc080392ee44bf
+ARG MOLD_SHA256_X86_64=4c999e19ffa31afa5aa429c679b665d5e2ca5a6b6832ad4b79668e8dcf3d8ec1
 
-RUN apt-get update && apt-get -y upgrade && \
-    apt-get install -y git libclang-dev pkg-config curl build-essential && \
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      git libclang-dev pkg-config curl build-essential cmake && \
     rm -rf /var/lib/apt/lists/*
 
+RUN set -eux; \
+    case "$(uname -m)" in \
+      x86_64) MOLD_ARCH=x86_64; MOLD_SHA256="${MOLD_SHA256_X86_64}" ;; \
+      aarch64|arm64) MOLD_ARCH=aarch64; MOLD_SHA256="${MOLD_SHA256_AARCH64}" ;; \
+      armv7l|armv6l) MOLD_ARCH=arm; MOLD_SHA256="${MOLD_SHA256_ARM}" ;; \
+      *) echo "unsupported architecture: $(uname -m)" >&2; exit 1 ;; \
+    esac; \
+    curl -fsSL "https://github.com/rui314/mold/releases/download/v${MOLD_VERSION}/mold-${MOLD_VERSION}-${MOLD_ARCH}-linux.tar.gz" -o /tmp/mold.tar.gz; \
+    echo "${MOLD_SHA256}  /tmp/mold.tar.gz" | sha256sum -c -; \
+    tar -xzf /tmp/mold.tar.gz -C /tmp; \
+    cp /tmp/mold-${MOLD_VERSION}-${MOLD_ARCH}-linux/bin/* /usr/local/bin/; \
+    rm -rf /tmp/mold*
+
+FROM rust-builder-base AS reth-base
+
+WORKDIR /app
+
+COPY versions.env /tmp/versions.env
+
 RUN . /tmp/versions.env && git clone $BASE_RETH_NODE_REPO . && \
     git checkout tags/$BASE_RETH_NODE_TAG && \
     bash -c '[ "$(git rev-parse HEAD)" = "$BASE_RETH_NODE_COMMIT" ]' || (echo "Commit hash verification failed" && exit 1)