fix: modify owner of files on mounted volumes

Author: furushchev

docker.sh

@@ -109,10 +109,13 @@ sudo -E apt-get -y -qq update
 sudo -E apt-get -y -qq install apt-utils build-essential curl git lsb-release python-pip python-setuptools wget
 
 # add user for testing
-adduser --disabled-password --gecos "" travis
-adduser travis sudo
-chown -R travis:travis $HOME
-echo "travis ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers
+id travis 1>/dev/null 2>&1
+if [ $? -ne 0 ]; then
+    sudo -E adduser --disabled-password --gecos "" travis
+    sudo -E adduser travis sudo
+    sudo -E chown -R travis:travis $HOME
+fi
+echo "travis ALL=(ALL) NOPASSWD:ALL" | sudo -E tee -a /etc/sudoers
 
 # check display
 sudo -E apt-get -y -qq install mesa-utils
@@ -125,4 +128,4 @@ export USE_TRAVIS=true
 travis_time_end
 
 # run tests
-su travis -c 'cd $CI_SOURCE_PATH; source .travis/travis.sh'
+sudo -E su travis -c 'cd $CI_SOURCE_PATH; source .travis/travis.sh'

travis.sh

@@ -91,7 +91,12 @@ if [ "$USE_DOCKER" = true ]; then
   fi
 
   docker pull $DOCKER_IMAGE || true
-  docker run -v $HOME:$HOME \
+  docker run -i\
+    -v $HOME:$HOME \
+    -v /etc/group:/etc/group:ro \
+    -v /etc/passwd:/etc/passwd:ro \
+    -v /etc/shadow:/etc/shadow:ro \
+    -v /etc/sudoers.d:/etc/sudoers.d:ro \
     $DOCKER_XSERVER_OPTIONS \
     -e TRAVIS_BRANCH -e TRAVIS_COMMIT -e TRAVIS_JOB_ID -e TRAVIS_OS_NAME -e TRAVIS_PULL_REQUEST -e TRAVIS_REPO_SLUG \
     -e CI_SOURCE_PATH -e HOME -e REPOSITORY_NAME \