ENH: Allow setting of pylib version

.docker/Dockerfile

@@ -9,10 +9,11 @@ RUN apt-get update && \
 	 tox \
 	 -y
 COPY .docker/wait-for-it.sh /wait-for-it.sh
-ADD https://gitlab.com/api/v4/projects/13656973/repository/branches/dev \
+ARG PYLIB=dev
+ADD https://gitlab.com/api/v4/projects/13656973/repository/commits/${PYLIB} \
 	pylib_version.json
 RUN git clone https://gitlab.com/caosdb/caosdb-pylib.git && \
-   cd caosdb-pylib && pip3 install .
+   cd caosdb-pylib && git checkout ${PYLIB} && pip3 install .
 COPY . /git
 RUN rm -r /git/.git && mv /git/.docker/pycaosdb.ini /git 
 WORKDIR /git

.gitlab-ci.yml

@@ -123,6 +123,7 @@ build-testenv:
       - docker login -u indiscale -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
         # use here general latest or specific branch latest...
       - docker build 
+        --build-arg PYLIB=${PYLIB}
         --file .docker/Dockerfile
         -t $CI_REGISTRY_IMAGE:latest .
       - docker push $CI_REGISTRY_IMAGE:latest