Add retries

Author: MakisH

tools/tests/dockerfiles/ubuntu_2404/Dockerfile

@@ -238,15 +238,15 @@ USER precice
 WORKDIR /home/precice/dumux
 ENV PATH="/home/precice/dumux/dune-common/bin:${PATH}"
 # This cascade of git clones often led to HTTP 502. Adding some delay in between as a workaround.
-RUN git clone --depth 1 https://gitlab.dune-project.org/core/dune-common.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/core/dune-geometry.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/core/dune-grid.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/core/dune-istl.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/core/dune-localfunctions.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/extensions/dune-subgrid.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://gitlab.dune-project.org/extensions/dune-SPGrid.git -b releases/${DUNE_VERSION} && sleep 5
-RUN git clone --depth 1 https://git.iws.uni-stuttgart.de/dumux-repositories/dumux.git -b releases/${DUMUX_VERSION} && sleep 5
-RUN git clone -b cell_problems https://git.iws.uni-stuttgart.de/dumux-appl/dumux-phasefield.git
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/core/dune-common.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/core/dune-geometry.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/core/dune-grid.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/core/dune-istl.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/core/dune-localfunctions.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/extensions/dune-subgrid.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://gitlab.dune-project.org/extensions/dune-SPGrid.git -b releases/${DUNE_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone --depth 1 https://git.iws.uni-stuttgart.de/dumux-repositories/dumux.git -b releases/${DUMUX_VERSION} && sleep 5; done
+RUN for i in $(seq 1 3); do git clone -b cell_problems https://git.iws.uni-stuttgart.de/dumux-appl/dumux-phasefield.git; done
 # build core DUNE, DuMuX and the adapter
 ARG DUMUX_ADAPTER_PR
 ARG DUMUX_ADAPTER_REF