workaround for LLVM tests, that are not compatible with root user

Author: alexbatashev

devops/containers/ubuntu2004_base.Dockerfile

@@ -2,6 +2,8 @@ FROM ubuntu:20.04
 
 ENV DEBIAN_FRONTEND=noninteractive
 
+USER root
+
 RUN apt update && apt install -yqq \
       build-essential \
       cmake \
@@ -10,3 +12,9 @@ RUN apt update && apt install -yqq \
       git \
       python3 \
       python3-distutils
+
+RUN adduser --disabled-password --gecos '' sycl
+
+COPY scripts/docker_entrypoint.sh /docker_entrypoint.sh
+
+ENTRYPOINT ["/docker_entrypoint.sh"]

devops/scripts/docker_entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+if [ -d "$GITHUB_WORKSPACE" ]; then
+  chown -R sycl:sycl $GITHUB_WORKSPACE
+  su sycl
+fi
+
+exec "$@"