VNC-213 Add core dumps for Xvnc as CI artifacts

builder/common.sh

@@ -1,4 +1,7 @@
 VNC_PORT=8443
+core_dumps_dir_inside_container="/core_dumps"
+core_dumps_dir_on_host="run_test/core_dumps"
+core_dumps_dir_volume_option="-v ${PWD}/${core_dumps_dir_on_host}:/${core_dumps_dir_inside_container}"
 
 detect_build_dir() {
   if [ -n "$CI" ]; then

builder/startup/vnc_startup_barebones.sh

@@ -12,14 +12,62 @@ create_kasm_user() {
   echo -e "$VNC_PW\n$VNC_PW\n" | kasmvncpasswd -w -u "$VNC_USER"
 }
 
+wait_for_core_to_be_dumped() {
+  if [ "$vncserver_exit_code" -eq 0 ]; then
+    return
+  fi
+
+  local timeout=2
+  local elapsed=0
+  local interval=1
+  while [[ ! -f core && "$elapsed" -lt "$timeout" ]]; do
+    sleep $interval
+    elapsed=$(($elapsed + $interval))
+  done
+}
+
+copy_core_to_host() {
+  mkdir -p "$CORE_DUMP_DIR_INSIDE_CONTAINER"
+  cp core "$CORE_DUMP_DIR_INSIDE_CONTAINER"
+}
+
+allow_core_to_be_dumped() {
+  ulimit -c unlimited
+  cd "$HOME"
+}
+
+clean_up_old_core_dir() {
+  if [ -d "$CORE_DUMP_DIR_INSIDE_CONTAINER" ]; then
+    rm -r "$CORE_DUMP_DIR_INSIDE_CONTAINER"
+  fi
+}
+
+core_was_dumped() {
+  [ -f core ]
+}
+
+say_where_to_find_core_on_host() {
+  echo "Core dumped to $CORE_DUMP_DIR_ON_HOST"
+}
+
 config_dir="$HOME/.vnc"
 xstartup="$config_dir/xstartup"
 
 set_xterm_to_run
 create_kasm_user
 
+allow_core_to_be_dumped
+clean_up_old_core_dir
+set +e
 vncserver -select-de manual -websocketPort "$VNC_PORT"
 vncserver_exit_code=$?
+set -e
+
+wait_for_core_to_be_dumped
+if core_was_dumped; then
+  copy_core_to_host
+  say_where_to_find_core_on_host
+fi
 if [ "$RUN_TEST" = 1 ]; then
   exit "$vncserver_exit_code"
 fi

builder/test-apk-barebones

@@ -11,20 +11,27 @@ cd "$(dirname "$0")/.."
 . ./builder/common.sh
 os="${1:-alpine}"
 os_codename="${2:-321}"
+distro="${os}_${os_codename}"
 
 detect_build_dir
 detect_base_image
-docker build --build-arg KASMVNC_PACKAGE_DIR="${build_dir}/${os}_${os_codename}" \
+docker build --build-arg KASMVNC_PACKAGE_DIR="${build_dir}/${distro}" \
   --build-arg RUN_TEST="$run_test" \
   --build-arg BASE_IMAGE="$BASE_IMAGE" \
   -t kasmvnctester_barebones_${os}:$os_codename \
-  -f builder/dockerfile.${os}_${os_codename}.barebones.apk.test .
+  -f builder/dockerfile.${distro}.barebones.apk.test .
 echo
 
 detect_interactive
 docker run $interactive -p "443:$VNC_PORT" --rm -e "VNC_USER=foo" -e "VNC_PW=foobar" \
+  $core_dumps_dir_volume_option \
   -e "VNC_PORT=$VNC_PORT" \
   -e RUN_TEST="$run_test" \
+  -e CORE_DUMP_DIR_ON_HOST="$core_dumps_dir_on_host/${distro}" \
+  -e CORE_DUMP_DIR_INSIDE_CONTAINER="${core_dumps_dir_inside_container}/${distro}" \
+  --cap-add=SYS_PTRACE \
+  --cap-add=SYS_RESOURCE \
+  --ulimit core=-1 \
   $entrypoint_executable \
   kasmvnctester_barebones_${os}:$os_codename \
   $entrypoint_args

builder/test-barebones

@@ -19,6 +19,13 @@ write_gitlab_report() {
 	echo "$failure_report" > run_test/"${os}_${os_codename}.xml"
 }
 
+create_core_dumps_dir_writeable_by_container() {
+  mkdir -p "$core_dumps_dir_on_host"
+  if [[ -n "$CI" && $(id -u) = 0 ]]; then
+    chown 1000:1000 "$core_dumps_dir_on_host"
+  fi
+}
+
 saved_options=("$@")
 . ./builder/process_test_options.sh
 . ./builder/common.sh
@@ -33,7 +40,7 @@ if [ "$run_test" != 1 ]; then
    exit $?
 fi
 
-mkdir -p run_test
+create_core_dumps_dir_writeable_by_container
 if ! builder/test-${package_format}-barebones "${saved_options[@]}" 2>&1 | \
    tee run_test/"${os_fullname}.log"; then
    create_gitlab_report "$(tail -1 run_test/${os_fullname}.log)"

builder/test-deb-barebones

@@ -15,6 +15,7 @@ cd "$(dirname "$0")/.."
 . ./builder/common.sh
 os="${1:-debian}"
 os_codename="${2:-buster}"
+distro="${os}_${os_codename}"
 
 detect_build_dir
 detect_base_image
@@ -22,13 +23,19 @@ docker build --build-arg KASMVNC_PACKAGE_DIR="${build_dir}/${os_codename}" \
   --build-arg RUN_TEST="$run_test" \
   --build-arg BASE_IMAGE="$BASE_IMAGE" \
   -t kasmvnctester_barebones_${os}:$os_codename \
-  -f builder/dockerfile.${os}_${os_codename}.barebones.deb.test .
+  -f builder/dockerfile.${distro}.barebones.deb.test .
 echo
 
 detect_interactive
 docker run $interactive -p "443:$VNC_PORT" --rm -e "VNC_USER=foo" -e "VNC_PW=foobar" \
+  $core_dumps_dir_volume_option \
   -e "VNC_PORT=$VNC_PORT" \
   -e RUN_TEST="$run_test" \
+  -e CORE_DUMP_DIR_ON_HOST="$core_dumps_dir_on_host/${distro}" \
+  -e CORE_DUMP_DIR_INSIDE_CONTAINER="${core_dumps_dir_inside_container}/${distro}" \
+  --cap-add=SYS_PTRACE \
+  --cap-add=SYS_RESOURCE \
+  --ulimit core=-1 \
   $entrypoint_executable \
   kasmvnctester_barebones_${os}:$os_codename \
   $entrypoint_args

builder/test-rpm-barebones

@@ -7,17 +7,24 @@ cd "$(dirname "$0")/.."
 . ./builder/common.sh
 os="${1:-oracle}"
 os_codename="${2:-8}"
+distro="${os}_${os_codename}"
 
 detect_build_dir
-docker build --build-arg KASMVNC_PACKAGE_DIR="${build_dir}/${os}_${os_codename}" \
+docker build --build-arg KASMVNC_PACKAGE_DIR="${build_dir}/${distro}" \
   --build-arg RUN_TEST="$run_test" \
   -t kasmvnctester_barebones_${os}:$os_codename \
-  -f builder/dockerfile.${os}_${os_codename}.barebones.rpm.test .
+  -f builder/dockerfile.${distro}.barebones.rpm.test .
 
 detect_interactive
 docker run $interactive -p "443:$VNC_PORT" --rm -e "VNC_USER=foo" -e "VNC_PW=foobar" \
+  $core_dumps_dir_volume_option \
   -e "VNC_PORT=$VNC_PORT" \
   -e RUN_TEST="$run_test" \
+  -e CORE_DUMP_DIR_ON_HOST="$core_dumps_dir_on_host/${distro}" \
+  -e CORE_DUMP_DIR_INSIDE_CONTAINER="${core_dumps_dir_inside_container}/${distro}" \
+  --cap-add=SYS_PTRACE \
+  --cap-add=SYS_RESOURCE \
+  --ulimit core=-1 \
   $entrypoint_executable \
   kasmvnctester_barebones_${os}:$os_codename \
   $entrypoint_args