git2go static compile environment on Amazon Linux with docker

Dockerfile

FROM lambdalinux/baseimage-amzn:latest

CMD ["/sbin/my_init"]

RUN yum update -y && yum install -y yum-plugin-ovl && yum install -y \
  gcc \
	make \
	cmake \
	git \
	libcurl-devel \
	openssl-static \
	zlib-devel \
	libssh2-devel \
  wget \
  tar

ENV GOLANG_VERSION=1.7
ENV LIBSSH2_VERSION=1.8.0
ENV GOLANG_DOWNLOAD_URL=https://s3.cn-north-1.amazonaws.com.cn/strikingly-morpheus/public/go$GOLANG_VERSION.linux-amd64.tar.gz \
  GOLANG_DOWNLOAD_SHA256=702ad90f705365227e902b42d91dd1a40e48ca7f67a2f4b2fd052aaa4295cd95 \
	LIBGIT=/libgit2 \
  LIBGIT_BRANCH=maint/v0.24 \
	LIBGIT_BUILD=/libgit2/build

RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
	&& echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - \
	&& tar -C /usr/local -xzf golang.tar.gz \
	&& rm golang.tar.gz

ENV GOPATH /go
ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH

# libssh2 version need > 1.6.0, compile it with both static and dynamic version for link libgit2
RUN curl -fSL "https://www.libssh2.org/download/libssh2-$LIBSSH2_VERSION.tar.gz" -o libssh2.tar.gz \
  && tar -C /tmp -xzf libssh2.tar.gz \
	&& mkdir -p "/tmp/libssh2-$LIBSSH2_VERSION/bin" && cd "/tmp/libssh2-$LIBSSH2_VERSION/bin" \
	&& cmake .. \
		-DBUILD_SHARED_LIBS=OFF \
		-DCMAKE_INSTALL_PREFIX=/usr \
	&& cmake --build . \
	&& cmake --build . --target install \
	&& rm -rf * \
	&& cmake .. \
		-DBUILD_SHARED_LIBS=ON \
		-DCMAKE_INSTALL_PREFIX=/usr \
	&& cmake --build . \
	&& cmake --build . --target install

# Install gb and static compile libgit2
RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && chmod -R 777 "$GOPATH" \
  && go get github.com/constabulary/gb/... \
  && git clone -b "$LIBGIT_BRANCH" https://github.com/libgit2/libgit2.git $LIBGIT \
	&& mkdir -p $LIBGIT_BUILD && cd $LIBGIT_BUILD && cmake .. \
		-DTHREADSAFE=ON \
		-DBUILD_CLAR=OFF \
		-DBUILD_SHARED_LIBS=OFF \
		-DCMAKE_BUILD_TYPE=RelWithDebInfo \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_C_FLAGS=-fPIC \
  && cmake --build . \
  && cmake --build . --target install

RUN echo "/usr/lib64" >> /etc/ld.so.conf.d/libssh2.conf \
 && echo "/usr/lib" >> /etc/ld.so.conf.d/libgit2.conf

# Get LD falgs from pkg-config --static --libs $LIBGIT_BUILD/libgit2.pc
# Use pre-compiled static libssh2.a here
ENV CGO_ENABLED=1 \
  CGO_LDFLAGS="-Wl,-z,relro -L/usr/lib -L/usr/lib64 -lgit2 -lcurl /usr/lib64/libssh2.a -lrt -lssl -lcrypto -ldl -lgssapi_krb5 -lkrb5 -lcom_err -lk5crypto -lz" \
  CGO_CFLAGS="-I/libgit2/include -I/usr/include" \
	PKG_CONFIG_PATH="/usr/lib64/pkgconfig:/usr/lib/pkgconfig"