diff --git a/Dockerfile b/Dockerfile
index 959b432..c759fc4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 FROM node:18-bullseye
 LABEL maintainer="Emerson Rocha <rocha@ieee.org>"
 
+ARG UWAZI_GIT_RELEASE_REF=production
+
 # see https://github.com/nodejs/docker-node#how-to-use-this-image
 
 ## Install common software
@@ -26,7 +28,7 @@ RUN echo "deb [ signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg] http://rep
   && apt-get clean && \
   rm -rf /var/lib/apt/lists/*
 
-RUN git clone -b production --single-branch --depth=1 https://github.com/huridocs/uwazi.git /home/node/uwazi/ \
+RUN git clone -b "$UWAZI_GIT_RELEASE_REF" --single-branch --depth=1 https://github.com/huridocs/uwazi.git /home/node/uwazi/ \
   && chown node:node -R /home/node/uwazi/ \
   && cd /home/node/uwazi/ \
   && yarn install \
diff --git a/README.md b/README.md
index 26fdf26..d0d083b 100644
--- a/README.md
+++ b/README.md
@@ -34,16 +34,32 @@ cd uwazi-docker
 docker compose run -e IS_FIRST_RUN=true --rm uwazi # Install/Re-install from empty data
 
 ```
-<!-- docker compose run --rm uwazi-installer -->
+
+With very fast internet and disks, this step will take between 8 to 15 minutes.
 
 ### Run
 
 ```bash
-docker compose up -d uwazi # Run uwazi on background (automatic restart on reboot unless stopped)
+# Run uwazi on background (automatic restart on reboot unless stopped)
+docker compose up -d uwazi
 ```
 
 Open your browser at <http://localhost:3000/>. Initial user: `admin`, password: `change this password now`.
 
+#### `yarn migrate` and `yarn reindex`
+
+At installation step the `yarn migrate` and `yarn reindex` are always executed,
+however the database will be erased to a blank state.
+However, if for some you already have real data and not major database upgrade,
+in which MongoDB and ElasticSearch might need some minor custom steps outside of Uwazi control,
+this command will run once only the `yarn migrate` and `yarn reindex`.
+
+```bash
+docker compose run -e RUN_YARN_MIGRATE_REINDEX=true --rm uwazi
+```
+
+Just to be sure, if working with real data, **please backup the volumes first**.
+
 ### Basic docker commands
 
 ```bash
diff --git a/docker-compose.yml b/docker-compose.yml
index 45a0747..cfd58c9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,7 +13,9 @@ services:
       - UPLOADS_FOLDER=/data/uploaded_documents
       # - LOGS_DIR=/path/to/log
       - IS_FIRST_RUN=${IS_FIRST_RUN:-false}
-      - UWAZI_RELEASE_TAG=${UWAZI_RELEASE_TAG:-production}
+      - RUN_YARN_MIGRATE_REINDEX=${RUN_YARN_MIGRATE_REINDEX:-false}
+      - UWAZI_GIT_RELEASE_REF=${UWAZI_GIT_RELEASE_REF:-production}
+      - DB_INITIALIZATION_PATH=${DB_INITIALIZATION_PATH:-/home/node/uwazi/database/blank_state/uwazi_development}
     volumes:
       - uploaded_documents:/data/uploaded_documents
     depends_on:
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 05d8e7f..ee4c1ef 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -1,15 +1,16 @@
 #!/bin/bash
+DB_INITIALIZATION_PATH="${DB_INITIALIZATION_PATH:-"/home/node/uwazi/dump/uwazi_development"}"
 
+echo "uwazi-docker: UWAZI_GIT_RELEASE_REF: $UWAZI_GIT_RELEASE_REF"
 echo "uwazi-docker: IS_FIRST_RUN: $IS_FIRST_RUN"
+echo "uwazi-docker: RUN_YARN_MIGRATE_REINDEX: $RUN_YARN_MIGRATE_REINDEX"
+echo "uwazi-docker: DB_INITIALIZATION_PATH: $DB_INITIALIZATION_PATH"
 # DB_INITIALIZATION_PATH=/home/node/uwazi/blank_state/uwazi_development
-# DB_INITIALIZATION_PATH=/home/node/uwazi/dump/uwazi_development
-DB_INITIALIZATION_PATH=/home/node/uwazi/database/blank_state/uwazi_development
 
-set -x
-ls -lha /home/node/uwazi/
+# set -x
+# ls -lha /home/node/uwazi/
 # ls -lha /home/node/uwazi/dump
 
-
 if [ "$IS_FIRST_RUN" = "true" ] ; then
     echo "uwazi-docker: Enviroment variable IS_FIRST_RUN is true. Assuming need to install database from blank state"
 
@@ -25,10 +26,19 @@ if [ "$IS_FIRST_RUN" = "true" ] ; then
     yarn migrate
     yarn reindex
 
-    echo "uwazi-docker: If no fatal errors occurred, you will not need to use this command again"
+    echo "uwazi-docker: If no fatal errors occurred, you will never need to use this command again"
+    exit 0
+
+elif [ "$RUN_YARN_MIGRATE_REINDEX" = "true" ] ; then
+    echo "uwazi-docker: Applyng yarn reindex. This will use data from MongoDB to feed Elastic Search"
+    yarn migrate
+    yarn reindex
+
+    echo "uwazi-docker: If no fatal errors occurred, you will not need to use this command again unless data needs update to run with newer Uwazi or database version"
     exit 0
 else
-    echo "uwazi-docker: Enviroment variable IS_FIRST_RUN is not true. Assume MongoDB and Elastic Search provide already are intialized"
+    echo "uwazi-docker: Enviroment variable IS_FIRST_RUN/RUN_YARN_MIGRATE_REINDEX are not true."
+    echo "uwazi-docker: Assume MongoDB and Elastic Search provide already are intialized."
     echo "uwazi-docker: [protip] is possible to initialize (or reset o initial state) MongoDB and Elastic Search with enviroment variable IS_FIRST_RUN=true"
 fi