add tests for ownership

tests/05-ownership.test.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+function run_test {
+  # the suite name below will only be used when running this file directly, when
+  # running through "test.sh" it must be provided using the "--suite" option.
+  tinitialize "Docker-Kong test suite" "${BASH_SOURCE[0]}"
+
+  tchapter "ownership is root:kong"
+
+
+  for filename in \
+    /usr/local/share/lua/5.1/ \
+    /usr/local/share/lua/5.1/kong/plugins/ \
+    /usr/local/lib/lua/5.1/ \
+    /usr/local/lib/luarocks/rocks-5.1/
+  do
+    ttest "owenership $filename"
+    local USR
+    local GRP
+    USR=$(docker run -ti --rm "kong-$BASE" ls -ld $filename | awk '{print $3}')
+    GRP=$(docker run -ti --rm "kong-$BASE" ls -ld $filename | awk '{print $4}')
+    if [ "$USR:$GRP" == "root:kong" ]; then
+      tsuccess
+    else
+      tmessage "user and group set to $USR:$GRP"
+      tfailure
+    fi
+  done
+
+  tfinish
+}
+
+# No need to modify anything below this comment
+
+# shellcheck disable=SC1090  # do not follow source
+[[ "$T_PROJECT_NAME" == "" ]] && set -e && if [[ -f "${1:-$(dirname "$(realpath "$0")")/test.sh}" ]]; then source "${1:-$(dirname "$(realpath "$0")")/test.sh}"; else source "${1:-$(dirname "$(realpath "$0")")/run.sh}"; fi && set +e
+run_test