Dockerfile.dev

# Dockerfile.dev is a stripped down version of Dockerfile that is used for development purposes.
# It minimizes number of installs and builds to speed up the development process.
# Run this on local host only.
# Generated image is larger than production image. Do not use this for production.

FROM --platform=${BUILDPLATFORM:-amd64} node:24 AS build_dev

# Install zig toolchain
# Required by @chainsafe/lodestar-z's `prepare` script in dev builds
ARG TARGETARCH
ARG ZIG_VERSION=0.16.0
RUN case "${TARGETARCH}" in \
  amd64) ZIG_ARCH=x86_64; ZIG_SHA256=70e49664a74374b48b51e6f3fdfbf437f6395d42509050588bd49abe52ba3d00 ;; \
  arm64) ZIG_ARCH=aarch64; ZIG_SHA256=ea4b09bfb22ec6f6c6ceac57ab63efb6b46e17ab08d21f69f3a48b38e1534f17 ;; \
  *) echo "unsupported TARGETARCH=${TARGETARCH}" && exit 1 ;; \
  esac && \
  curl -fsSL "https://ziglang.org/download/${ZIG_VERSION}/zig-${ZIG_ARCH}-linux-${ZIG_VERSION}.tar.xz" -o /tmp/zig.tar.xz && \
  echo "${ZIG_SHA256}  /tmp/zig.tar.xz" | sha256sum -c - && \
  tar -xJf /tmp/zig.tar.xz -C /opt && \
  ln -s /opt/zig-${ZIG_ARCH}-linux-${ZIG_VERSION}/zig /usr/local/bin/zig && \
  rm /tmp/zig.tar.xz && \
  zig version

WORKDIR /usr/app

# Enable corepack for pnpm support
RUN corepack enable

# Copy dependency manifests first for optimal layer caching.
# Only changes to package.json or lockfile will invalidate the install layer,
# source code changes will only invalidate the build layer.
COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
COPY packages/api/package.json packages/api/
COPY packages/beacon-node/package.json packages/beacon-node/
COPY packages/cli/package.json packages/cli/
COPY packages/config/package.json packages/config/
COPY packages/db/package.json packages/db/
COPY packages/era/package.json packages/era/
COPY packages/fork-choice/package.json packages/fork-choice/
COPY packages/logger/package.json packages/logger/
COPY packages/params/package.json packages/params/
COPY packages/reqresp/package.json packages/reqresp/
COPY packages/spec-test-util/package.json packages/spec-test-util/
COPY packages/state-transition/package.json packages/state-transition/
COPY packages/test-utils/package.json packages/test-utils/
COPY packages/types/package.json packages/types/
COPY packages/utils/package.json packages/utils/
COPY packages/validator/package.json packages/validator/

RUN pnpm install --frozen-lockfile

# Copy source code and build
COPY . .

RUN pnpm build

# Declare COMMIT arg after install+build layers to avoid cache invalidation
ARG COMMIT
RUN cd packages/cli && GIT_COMMIT=${COMMIT} pnpm write-git-data

ENV NODE_OPTIONS=--max-old-space-size=8192

ENTRYPOINT ["node", "./packages/cli/bin/lodestar"]