diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ac674b47a19647cfdd77b78afaffe15402e75296..adca4977b0bd309930c2575a0ad888d9784e592e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@
 
 # If you want to use DinD for your Docker-build jobs, you can use our privileged shared
 # GitLab-runners. This allows to directly build the image yourself as per https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#use-docker-in-docker-workflow-with-docker-executor
-build docker image with dind:
+build docker image conda scipy with dind:
   stage: build
   tags: 
   - docker-privileged
@@ -35,8 +35,46 @@ build docker image with dind:
   script:
     - docker info
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
-    - docker build --pull -t "$CI_REGISTRY_IMAGE" .
+    - docker build --pull -t "$CI_REGISTRY_IMAGE" ./ROOT_conda_built_scipy
     - docker push "$CI_REGISTRY_IMAGE"
+    
+ 
+ 
+ 
+ build docker image conda base with dind:
+  stage: build
+  tags: 
+  - docker-privileged
+  # Use specific version of the official docker client image (as well as the docker-in-docker image) as recommended by
+  # https://about.gitlab.com/2019/07/31/docker-in-docker-with-docker-19-dot-03/
+  image: docker:19.03.1
+  services:
+  # To obtain a Docker daemon, request a Docker-in-Docker service
+  - docker:19.03.1-dind
+  # Note about internal IPs Clash
+  # If the internal private network assigned to the dind service clashes with any service/host used on the job,
+  # you can specify a different IP subnet to avoid the clash. Useful command to inspect the assigned IP range
+  # is `docker network inspect bridge`. 
+  # To effectively assign a different IP subnet, replace the previous service definition with the following:
+  #  services:
+  #  # To obtain a Docker daemon, request a Docker-in-Docker service
+  #  - name: docker:19.03.1-dind
+  #    # Add to the dockerd command a specific bridge Ip, in this case the range 10.200.0.1/24 (to be adapted)
+  #    command: ["--bip=10.200.0.1/24"]
+  variables:
+      # As of GitLab 12.5, privileged runners at CERN mount a /certs/client docker volume that enables use of TLS to
+      # communicate with the docker daemon. This avoids a warning about the docker service possibly not starting
+      # successfully.
+      # See https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#tls-enabled
+      DOCKER_TLS_CERTDIR: "/certs"
+      # Note that we do not need to set DOCKER_HOST when using the official docker client image: it automatically
+      # defaults to tcp://docker:2376 upon seeing the TLS certificate directory.
+      #DOCKER_HOST: tcp://docker:2376/
+  script:
+    - docker info
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+    - docker build --pull -t "$CI_REGISTRY_IMAGE":conda ./ROOT_conda_minimal
+    - docker push "$CI_REGISTRY_IMAGE":conda
 
 # Features
 # * Allows your job to have access to the host, as it runs in privileged mode
@@ -45,3 +83,5 @@ build docker image with dind:
 # Limitations
 # * Privileged runners take around 1-2 minutes to spawn a VM for your job and do not cache Docker-images
 # * These runners will not be available during Openstack Nova API downtime
+
+
diff --git a/Dockerfile b/ROOT_conda_built_scipy/Dockerfile
similarity index 100%
rename from Dockerfile
rename to ROOT_conda_built_scipy/Dockerfile
diff --git a/ROOT_conda_minimal/Dockerfile b/ROOT_conda_minimal/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..9007bd1b6af20ea9e5c5b4964178bc1ff648529e
--- /dev/null
+++ b/ROOT_conda_minimal/Dockerfile
@@ -0,0 +1,41 @@
+FROM jupyter/base-notebook:latest
+WORKDIR /
+ENV DEBIAN_FRONTEND=noninteractive
+USER root
+
+#Upload the new kernel into the jupyter dir
+COPY kernel.json /opt/conda/share/jupyter/kernels/python3/kernel.json
+
+#install the prerequisites (option always yes activated)
+RUN apt-get update \
+    && apt-get upgrade -y \
+    && apt-get install -y python3 python3-dev git curl python3-pip \                                           
+    && apt-get --yes install \
+    dpkg-dev  \
+    cmake \
+    g++ \
+    gcc \
+    binutils\
+    libx11-dev\
+    libxpm-dev\
+    libxft-dev\
+    libxext-dev\
+    libssl-dev\
+    nano
+
+#    ========================== \
+#    Installing ROOT \
+#    ========================== 
+RUN conda install root -c conda-forge
+#RUN conda activate root_env
+
+WORKDIR /home/jovyan/work/
+
+
+ENV ROOTSYS=/installdir
+ENV PATH $ROOTSYS/bin:$PATH
+ENV PYTHONPATH=$ROOTSYS/lib:$PYTHONPATH
+ENV LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
+ENV CLING_STANDARD_PCH=none
+
+#CMD [ "conda" "activate" "root_env" ]
diff --git a/ROOT_conda_minimal/kernel.json b/ROOT_conda_minimal/kernel.json
new file mode 100644
index 0000000000000000000000000000000000000000..a00704d68ffb0003ff9ba8a7a6a2483ff8dff7df
--- /dev/null
+++ b/ROOT_conda_minimal/kernel.json
@@ -0,0 +1,15 @@
+{
+ "argv": [
+  "/opt/conda/bin/python",
+  "-m",
+  "ipykernel_launcher",
+  "-f",
+  "{connection_file}"
+ ],
+ "display_name": "Python 3",
+ "language": "python",
+ "env": {
+   "PYTHONPATH": "${PYTHONPATH}:/installdir/lib",
+   "LD_LIBRARY_PATH": "/installdir/lib"
+ }
+}
\ No newline at end of file