[CI] Add containter for Ubuntu 18.04

.github/workflows/sycl-containers.yaml

@@ -43,6 +43,10 @@ jobs:
     strategy:
       matrix:
         include:
+          - name: Build Ubuntu 18.04 Docker image
+            file: ubuntu2204_build
+            tag: latest
+            build_args: ""
           - name: Build Ubuntu 22.04 Docker image
             file: ubuntu2204_build
             tag: latest

devops/containers/ubuntu1804_build.Dockerfile

@@ -0,0 +1,89 @@
+FROM docker.io/nvidia/cuda:12.1.0-devel-ubuntu18.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+USER root
+
+# CUDA apt key rotation fix for older base images.
+RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
+
+# Install a recent enough CMake from Kitware's repository.
+RUN apt-get update -qq && \
+		apt-get install --no-install-recommends -yqq ca-certificates gpg wget && \
+		wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | \
+			gpg --dearmor - | tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null && \
+		echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ bionic main" | \
+			tee /etc/apt/sources.list.d/kitware.list >/dev/null && \
+		apt-get update -qq && \
+		apt-get install --no-install-recommends -yqq cmake
+
+# Ubuntu 18.04 ships with Python 3.6, but buildbot scripts need at least 3.8.
+RUN apt-get update -qq && \
+		apt-get install --no-install-recommends -yqq software-properties-common && \
+		add-apt-repository -y ppa:deadsnakes/ppa && \
+		apt-get update -qq && \
+		apt-get install --no-install-recommends -yqq \
+			python3.8 \
+			python3.8-dev \
+			python3.8-venv \
+			python3.8-distutils \
+			python3-pip && \
+		update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 10 && \
+		python3 --version
+
+# Install dependencies required to configure and build intel/llvm with
+# buildbot/configure.py and buildbot/compile.py.
+RUN apt-get update -qq && \
+		apt-get install --no-install-recommends -yqq \
+			git \
+			build-essential \
+			ccache \
+			python3-setuptools \
+			python3-psutil \
+			pkg-config \
+			ocl-icd-opencl-dev \
+			libffi-dev \
+			libxml2-dev \
+			libedit-dev \
+			libncurses5-dev \
+			unzip \
+			zip \
+			ninja-build && \
+		rm -rf /var/lib/apt/lists/*
+
+# Build libhwloc 2.3.0+ from sources (Ubuntu 18.04 ships with 1.11.6).
+RUN cd /tmp && \
+		wget -q https://www.open-mpi.org/software/hwloc/v2.3/downloads/hwloc-2.3.0.tar.gz && \
+		tar xzf hwloc-2.3.0.tar.gz && \
+		cd hwloc-2.3.0 && \
+		./configure --prefix=/usr/local --disable-static && \
+		make -j$(nproc) && \
+		make install && \
+		ldconfig && \
+		cd /tmp && \
+		rm -rf hwloc-2.3.0*
+
+# Build zstd 1.5.7 from sources with -fPIC flag (Ubuntu 18.04 ships with 1.3.3).
+RUN cd /tmp && \
+		wget -q https://github.com/facebook/zstd/releases/download/v1.5.7/zstd-1.5.7.tar.gz && \
+		tar xzf zstd-1.5.7.tar.gz && \
+		cd zstd-1.5.7 && \
+		CFLAGS="-fPIC" CXXFLAGS="-fPIC" make -j$(nproc) && \
+		make install PREFIX=/usr/local && \
+		cp /usr/local/include/zstd.h /usr/include/ && \
+		cp /usr/local/lib/libzstd.* /usr/lib/ 2>/dev/null || true && \
+		ldconfig && \
+		cd /tmp && \
+		rm -rf zstd-1.5.7*
+
+COPY scripts/create-sycl-user.sh /user-setup.sh
+RUN /user-setup.sh
+
+COPY scripts/docker_entrypoint.sh /docker_entrypoint.sh
+
+COPY actions/cached_checkout /actions/cached_checkout
+COPY actions/cleanup /actions/cleanup
+
+USER sycl
+
+ENTRYPOINT ["/docker_entrypoint.sh"]