WIP: Resolve "upgrade backend-modules"

Closes #2 (closed)

assets/docker-entrypoint

@@ -179,8 +179,8 @@ register_service() {
 }
 
 deploy_module() {
-  if [ "${SELF_DEPLOY}" == "false" ]; then
-    echo "=== okapi-setup skipped because of SELF_DEPLOY=false ==="
+  if [ "${SELF_INTRODUCE}" == "false" ]; then
+    echo "=== okapi-setup skipped because of SELF_INTRODUCE=false ==="
     return 0
   fi