fix CI

.gitlab-ci.yml

 variables:
-  DOCKER_IMAGE: dpsim-dev-${CI_COMMIT_REF_NAME}
+  DOCKER_TAG_DEV: ${CI_COMMIT_REF_NAME}
+  DOCKER_IMAGE_DEV: villas/dpsim-dev
   GIT_SUBMODULE_STRATEGY: recursive
 
 stages:
@@ -11,7 +12,7 @@ stages:
 docker:
   stage: prepare
   script:
-    - docker build -t ${DOCKER_IMAGE} .
+    - docker build -t ${DOCKER_IMAGE_DEV}:${DOCKER_TAG_DEV} .
   tags:
     - shell
 
@@ -22,7 +23,7 @@ build:
     - cd Source/build
     - cmake ..
     - make
-  image: ${DOCKER_IMAGE}
+  image: ${DOCKER_IMAGE_DEV}:${DOCKER_TAG_DEV}
   artifacts:
     paths:
       - Source/build
@@ -33,7 +34,7 @@ docs:
   stage: docs
   script:
     - make docs
-  image: ${DOCKER_IMAGE}
+  image: ${DOCKER_IMAGE_DEV}:${DOCKER_TAG_DEV}
   artifacts:
     paths:
       - Documentation/html
@@ -46,6 +47,6 @@ test:
     PYTHONPATH: Source/build
   script:
     - python3 Examples/Python/ci.py
-  image: ${DOCKER_IMAGE}
+  image: ${DOCKER_IMAGE_DEV}:${DOCKER_TAG_DEV}
   tags:
     - docker

Dockerfile

-FROM fedora:latest
-MAINTAINER Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+FROM registry.fedoraproject.org/fedora:27
+
+LABEL \
+	org.label-schema.schema-version = "1.0" \
+	org.label-schema.name = "DPsim" \
+	org.label-schema.license = "GPL-3.0" \
+	org.label-schema.vendor = "Institute for Automation of Complex Power Systems, RWTH Aachen University" \
+	org.label-schema.author.name = "Steffen Vogel" \
+	org.label-schema.author.email = "stvogel@eonerc.rwth-aachen.de" \
+	org.label-schema.url = "http://fein-aachen.org/projects/dpsim/" \
+	org.label-schema.vcs-url = "https://git.rwth-aachen.de/acs/core/simulation/DPsim"
 
 ADD https://villas.fein-aachen.org/packages/villas.repo /etc/yum.repos.d/
 
 RUN dnf -y update
 
+# Toolchain
 RUN dnf -y install \
 	git \
 	gcc-c++ \
-	make \
-	cmake \
+	make cmake \
+	doxygen
+
+# Dependencies
+RUN dnf -y install \
 	eigen3-devel \
-	doxygen \
-	libxml2-devel \
-	python3-pandas \
-	python3-numpy \
-	python3-sphinx
+	villas-node-devel \
+	libcimpp-devel
 
-RUN dnf -y install villas-node-devel
+# Python Packages
+RUN pip install \
+	pandas \
+	numpy \
+	matplotlib \
+	sphinx