Add ubuntu container as CVMFS runner requires some ubuntu specific in…

…stalls

.github/workflows/CIBuild.yml

@@ -22,6 +22,10 @@ jobs:
           - os: Alma9
             file: doc/MaCh3DockerFiles/Alma9/Dockerfile
             tag: alma9latest
+          - os: Ubuntu22.04
+            file: doc/MaCh3DockerFiles/Ubuntu22/Dockerfile
+            tag: ubuntulatest
+
          # - os: Rocky9
          #   file: doc/MaCh3DockerFiles/Rocky9/Dockerfile
          #   tag: rocky9latest

.github/workflows/EventRates.yml

@@ -23,7 +23,7 @@ jobs:
 
     name: Build CI ${{ matrix.os }}
     container:
-      image: ghcr.io/dune/mach3:alma9latest
+      image: ghcr.io/dune/mach3:ubuntulatest
       options: --privileged -v /cvmfs:/cvmfs:shared
 
     steps:

doc/MaCh3DockerFiles/Ubuntu22.04/Dockerfile

@@ -0,0 +1,30 @@
+#To run use: docker build --secret id=tokens,src=tokens.txt -t mach3dune .
+FROM rootproject/root:6.32.02-ubuntu22.04 AS mach3_dune_build
+
+RUN apt update && apt upgrade -y
+RUN apt-get install -y nlohmann-json3-dev
+#MISC_SW
+RUN apt install -y --no-install-recommends \
+    vim less nano gdb csh tcsh ed quota python3 python3-dev python3-pip \
+    cvs procmail ca-certificates cmake ninja-build
+
+
+# Declare the build argument
+ARG MACH3_DUNE_VERSION
+ENV MACH3_DUNE_VERSION=${MACH3_DUNE_VERSION:-develop}
+
+ENV MACH3_DUNE_WORK_DIR=/opt/MaCh3DUNE/
+ENV MACH3_DUNE_INSTALL_DIR=${MACH3_DUNE_WORK_DIR}/build
+
+
+RUN --mount=type=ssh git clone https://github.com/DUNE/MaCh3_DUNE.git ${MACH3_DUNE_WORK_DIR}
+
+WORKDIR ${MACH3_DUNE_WORK_DIR}
+RUN git checkout ${MACH3_DUNE_VERSION}
+
+RUN mkdir -p ${MACH3_DUNE_INSTALL_DIR}
+WORKDIR ${MACH3_DUNE_INSTALL_DIR}
+
+RUN cmake ../
+
+RUN make -j && make install