Fixing directory creation and downstream issues

Dockerfile.runtime

@@ -117,19 +117,14 @@ RUN           echo "umask 0700" > /etc/profile.d/dbdbdp; \
 RUN           adduser --system --no-create-home --home /nonexistent --gecos "in dockerfile user" \
                 --uid 2000 \
                 dubo-dubon-duponey; \
-              mkdir -p /boot; \
-              mkdir -p /config; \
-              mkdir -p /data; \
-              mkdir -p /certs; \
-              chown -R 2000:root /boot; \
-              chown -R 2000:root /config; \
-              chown -R 2000:root /data; \
-              chown -R 2000:root /certs; \
               epoch="$(date --date "$BUILD_CREATED" +%s)"; \
-              touch --no-dereference --date="@$epoch" /boot; \
-              touch --no-dereference --date="@$epoch" /config; \
-              touch --no-dereference --date="@$epoch" /data; \
-              touch --no-dereference --date="@$epoch" /certs;
+              for i in /boot /certs \
+                  "$XDG_DATA_HOME" "$XDG_CONFIG_HOME" "$XDG_STATE_HOME" "$XDG_CACHE_HOME" \
+                  "$XDG_RUNTIME_DIR" "$XDG_DATA_DIRS" "$XDG_CONFIG_DIRS"; do
+                mkdir -p "$i"; \
+                chown -R 2000:root "$i"; \
+                touch --no-dereference --date="@$epoch" "$i"; \
+              done
 
 # Fix timestamp on files altered by user creation and ca-certificates to fix reproducibility
 # NOTE: this is somewhat problematic. BUILD_CREATED could be older than the Debian image it is using.