Build Static Linux Executable from macOS

Makefile

@@ -38,6 +38,7 @@ help:
 	@echo "test-rosetta-attach - attach onto the rosetta testing docker container for inspection"
 	@echo "linux_static - static build the harmony binary & bootnode along with the MCL & BLS libs (for linux)"
 	@echo "linux_static_quick - static build the harmony binary & bootnode more quickly without recompiling dependencies (for linux)"
+	@echo "linux_static_cross_build - cross-compile static Linux binaries for Harmony and Bootnode from macOS"
 	@echo "rpm_init - prepare the RPM build environment by creating directories, copying files, and generating the spec file and source tarball"
 	@echo "rpm_build - build an RPM package for x86_64 architecture using the spec file (<RPMBUILD>/SPECS/harmony.spec)"
 	@echo "rpm - build a harmony RPM pacakge"
@@ -166,6 +167,9 @@ linux_static:
 linux_static_quick:
 	bash ./scripts/go_executable_build.sh -s
 
+linux_static_cross_build:
+	bash ./scripts/linux_executable_from_macos.sh -s
+
 deb_init:
 	rm -rf $(DEBBUILD)
 	mkdir -p $(DEBBUILD)/$(PKGNAME)-$(VERSION)-$(RELEASE)/{etc/systemd/system,usr/sbin,etc/sysctl.d,etc/harmony}

scripts/linux_executable_from_macos.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+set -e  # Exit on first error
+
+# Define paths
+SCRIPT_DIR=$(dirname "$0")
+PROJECT_ROOT=$(realpath "$SCRIPT_DIR/..")
+HARMONY_DIR="$PROJECT_ROOT"
+DOCKER_IMAGE="harmony-one"  # Name of the Docker image
+OUTPUT_DIR="$HARMONY_DIR/bin/linux_static_bin"  # Folder for generated binaries
+
+echo "=== Paths ==="
+echo "SCRIPT_DIR: $SCRIPT_DIR"
+echo "PROJECT_ROOT: $PROJECT_ROOT"
+echo "HARMONY_DIR: $HARMONY_DIR"
+echo "OUTPUT_DIR: $OUTPUT_DIR"
+
+# Ensure output directory exists and clean old binaries
+mkdir -p "$OUTPUT_DIR"
+rm -f "$OUTPUT_DIR/harmony" "$OUTPUT_DIR/bootnode"
+
+# Check if Docker is running
+if ! docker info > /dev/null 2>&1; then
+    echo "Docker is not running. Please start Docker and try again."
+    exit 1
+fi
+
+# Build Docker image if not found
+if ! docker image inspect "$DOCKER_IMAGE" > /dev/null 2>&1; then
+    echo "Building Docker image '$DOCKER_IMAGE'..."
+    pushd "$PROJECT_ROOT/scripts/macos_docker"
+    docker build -t "$DOCKER_IMAGE" -f Dockerfile .
+    popd
+else
+    echo "Docker image '$DOCKER_IMAGE' already exists. Skipping build."
+fi
+
+# Run the container in the background
+echo "Running Docker container..."
+CONTAINER_ID=$(docker run -d "$DOCKER_IMAGE" tail -f /dev/null)
+trap 'docker stop "$CONTAINER_ID" > /dev/null; docker rm "$CONTAINER_ID" > /dev/null' EXIT  # Ensure cleanup on exit
+
+# Copy project files into the container
+echo "Copying project files to Docker container..."
+docker cp "$HARMONY_DIR/." "$CONTAINER_ID:/root/go/src/github.com/harmony-one/tmp"
+
+# Build binaries inside the container
+echo "Building Linux static binary..."
+docker exec "$CONTAINER_ID" bash -c "
+    set -e
+    cd /root/go/src/github.com/harmony-one
+    echo 'Current Directory: ' && pwd
+    rm -rf harmony
+    mv tmp harmony
+    cd harmony/bin && rm -rf *  # Clear previous binaries
+    cd ..
+    git config --global --add safe.directory /root/go/src/github.com/harmony-one/harmony
+    make linux_static
+"
+
+# Copy built binaries back to host machine
+echo "Copying binaries to output directory..."
+docker cp "$CONTAINER_ID:/root/go/src/github.com/harmony-one/harmony/bin/harmony" "$OUTPUT_DIR"
+docker cp "$CONTAINER_ID:/root/go/src/github.com/harmony-one/harmony/bin/bootnode" "$OUTPUT_DIR"
+
+# Validate build output
+if [ "$(ls -A "$OUTPUT_DIR")" ]; then
+    echo "✅ Build completed successfully. Binaries are in '$OUTPUT_DIR'."
+else
+    echo "❌ Build failed: No binaries found in '$OUTPUT_DIR'."
+    exit 1
+fi

scripts/macos_docker/Dockerfile

@@ -0,0 +1,64 @@
+FROM ubuntu:22.04
+
+ARG TARGETARCH
+ARG GOLANG_VERSION="1.22.5"
+
+SHELL ["/bin/bash", "-c"]
+
+ENV GOPATH=/root/go
+ENV GO111MODULE=on
+ENV HMY_PATH=${GOPATH}/src/github.com/harmony-one
+ENV OPENSSL_DIR=/usr/lib/ssl
+ENV MCL_DIR=${HMY_PATH}/mcl
+ENV BLS_DIR=${HMY_PATH}/bls
+ENV CGO_CFLAGS="-I${BLS_DIR}/include -I${MCL_DIR}/include"
+ENV CGO_LDFLAGS="-L${BLS_DIR}/lib"
+ENV LD_LIBRARY_PATH=${BLS_DIR}/lib:${MCL_DIR}/lib
+ENV GIMME_GO_VERSION=${GOLANG_VERSION}
+ENV PATH="/root/bin:${PATH}"
+
+RUN apt update && apt upgrade -y && \
+	apt install libgmp-dev libssl-dev curl git \
+	psmisc dnsutils jq make gcc g++ bash tig tree sudo vim \
+	silversearcher-ag unzip emacs-nox nano bash-completion -y
+
+RUN mkdir ~/bin && \
+	curl -sL -o ~/bin/gimme \
+	https://raw.githubusercontent.com/travis-ci/gimme/master/gimme && \
+	chmod +x ~/bin/gimme
+
+RUN eval "$(~/bin/gimme ${GIMME_GO_VERSION})"
+
+#RUN git clone https://github.com/harmony-one/harmony.git ${HMY_PATH}/harmony
+
+RUN git clone https://github.com/harmony-one/mcl.git ${HMY_PATH}/mcl && \
+    echo "mcl repository cloned" && \
+    ls -la ${HMY_PATH}/mcl  # List the contents of the mcl directory
+
+RUN git clone https://github.com/harmony-one/bls.git ${HMY_PATH}/bls && \
+    echo "bls repository cloned" && \
+    ls -la ${HMY_PATH}/bls  # List the contents of the bls directory
+
+RUN git clone https://github.com/harmony-one/go-sdk.git ${HMY_PATH}/go-sdk
+
+RUN cd ${HMY_PATH}/bls && make -j8 BLS_SWAP_G=1
+
+RUN touch /root/.bash_profile && \
+	gimme ${GIMME_GO_VERSION} >> /root/.bash_profile && \
+	echo "GIMME_GO_VERSION='${GIMME_GO_VERSION}'" >> /root/.bash_profile && \
+	echo "GO111MODULE='on'" >> /root/.bash_profile && \
+	echo ". ~/.bash_profile" >> /root/.profile && \
+	echo ". ~/.bash_profile" >> /root/.bashrc
+
+ENV PATH="/root/.gimme/versions/go${GIMME_GO_VERSION}.linux.${TARGETARCH:-amd64}/bin:${GOPATH}/bin:${PATH}"
+
+RUN . ~/.bash_profile; \
+	go install golang.org/x/tools/cmd/goimports; \
+	go install golang.org/x/lint/golint ; \
+	go install github.com/rogpeppe/godef ; \
+	go install github.com/go-delve/delve/cmd/dlv; \
+	go install github.com/golang/mock/mockgen; \
+	go install github.com/stamblerre/gocode; \
+	go install golang.org/x/tools/...; \
+	go install honnef.co/go/tools/cmd/staticcheck/...
+