dosubot[bot] commented on issue #7529:
URL:
https://github.com/apache/incubator-devlake/issues/7529#issuecomment-2134901058
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To resolve the error related to linking `libgit2.so` when building the
backend Docker image, ensure that the `LD_LIBRARY_PATH` environment variable is
correctly set to include the directory where `libgit2.so` is installed. This is
done in the `devlake-base` stage of your Dockerfile.
Here is the relevant part of the Dockerfile that sets up the
`LD_LIBRARY_PATH`:
```dockerfile
FROM --platform=linux/amd64 debian:bullseye as debian-amd64
RUN apt-get -y update && apt -y upgrade &&\
apt-get install -y libssh2-1-dev libssl-dev zlib1g-dev
FROM golang:1.20.4-bullseye as builder
# Base dependencies
RUN apt-get -y update && apt -y upgrade &&\
apt-get install -y gcc binutils libfindbin-libs-perl cmake libssh2-1-dev
libssl-dev zlib1g-dev \
gcc-x86-64-linux-gnu binutils-x86-64-linux-gnu
COPY --from=debian-amd64 /usr/include /rootfs-amd64/usr/include
COPY --from=debian-amd64 /usr/lib/x86_64-linux-gnu
/rootfs-amd64/usr/lib/x86_64-linux-gnu
COPY --from=debian-amd64 /lib/x86_64-linux-gnu
/rootfs-amd64/lib/x86_64-linux-gnu
## Build libs/headers needed for gitextractor plugin
RUN \
mkdir -p /tmp/build/x86_64 && cd /tmp/build/x86_64 && \
wget https://github.com/libgit2/libgit2/archive/refs/tags/v1.3.2.tar.gz
-O - | tar -xz && \
cd libgit2-1.3.2 && \
mkdir build && cd build && \
cmake .. -DCMAKE_C_COMPILER=x86_64-linux-gnu-gcc -DBUILD_SHARED_LIBS=ON
-DCMAKE_SYSROOT=/rootfs-amd64 -DCMAKE_INSTALL_PREFIX=/usr/local/deps/x86_64 &&\
make -j install &&\
mkdir -p /tmp/deps &&\
cp *libgit2* /tmp/deps/ &&\
cp -r ../include /tmp/deps/include
FROM python:3.9-slim-bullseye
RUN apt -y update && apt -y upgrade && apt -y install tzdata make tar curl
gcc g++ pkg-config git \
libssh2-1 zlib1g libffi-dev \
default-libmysqlclient-dev \
libpq-dev
# Install Libs/Headers from previous stage
COPY --from=builder /tmp/deps/*.so* /usr/lib/
COPY --from=builder /tmp/deps/*.pc /usr/lib/x86_64-linux-gnu/pkgconfig/
COPY --from=builder /tmp/deps/include/ /usr/include/
ENV PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig
# Install Golang
RUN curl -L https://git.io/vQhTU | bash -s -- --version 1.20.4
RUN mv /root/go /go &&\
mv /root/.go /usr/local/go &&\
ln -sf /usr/local/go/bin/* /usr/bin
# Install Golang Tools
RUN export GOPATH=/go && \
go install github.com/vektra/mockery/v2@v2.20.0 && \
go install github.com/swaggo/swag/cmd/swag@v1.16.1
# Golang Env
ENV GOPATH=/go
# Make sure GOROOT is unset
ENV GOROOT=
ENV PATH=${GOPATH}/bin:${PATH}
# Python Poetry package manager
RUN curl -sSL https://install.python-poetry.org | python3 -
RUN ln -sf /root/.local/bin/poetry /usr/local/bin
```
Ensure that the `libgit2.so` files are correctly copied from the build stage
to the `/usr/lib` directory and that `ldconfig` is run to update the shared
library cache. This setup should resolve the linking error for `libgit2.so`
<sup>[[1]](https://github.com/apache/incubator-devlake/blob/main/backend/Dockerfile)</sup><sup>[[2]](https://github.com/apache/incubator-devlake/blob/main/devops/docker/lake-builder/Dockerfile)</sup>.
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