call the postinstall

Author: albu-diku

Dockerfile.rocky9

@@ -935,8 +935,8 @@ RUN if [ -e "$MIG_ROOT/envhelp/scripts/expand_indexurls.py" ]; then \
     "$MIG_ROOT/envhelp/scripts/expand_indexurls.py" --staged; fi
 
 # In a per-feature requirements file future, we will have something generic
-# across the features here. For now, perform one-off logic to install the
-# migrid UX package we depend upon.
+# across the features here. For now, perform one-off logic to arrange for a
+# package of migrid UX that we can install; then do so.
 
 USER root
 ENV FEATURE_MIGUX="$MIG_ROOT/mig/install/requirements/migux-requirements.txt"
@@ -947,6 +947,9 @@ RUN if [ -e "$FEATURE_MIGUX" ]; then \
     fi
 USER $USER
 
+RUN if [ -e "$MIG_ROOT/mig/install/postinstall/migux-postinstall" ]; then \
+    "$MIG_ROOT/mig/install/postinstall/migux-postinstall"; fi
+
 # NOTE: we manually need to enable modern grid_webdavs.py here for now.
 #       Replace any existing symlink with one to the 3.x script.
 RUN rm -f ${MIG_ROOT}/mig/server/grid_webdavs.py ; \