diff --git a/services/metabase/README.md b/services/metabase/README.md
new file mode 100644
index 00000000..1992c563
--- /dev/null
+++ b/services/metabase/README.md
@@ -0,0 +1,8 @@
+## How to deploy first time
+
+Before deploying metabase first time, make sure that postgres is configured:
+1. Generate SQL commands via `make configure_metabase.sql`
+2. Execute SQL commands from the script in psql shell
+    * you can get one via adminer or by directly connecting to container and executing `psql -U <user> -d <db>`
+
+This can be automated via https://github.com/ITISFoundation/osparc-ops-environments/issues/827
diff --git a/services/metabase/configure_metabase.sql.template b/services/metabase/configure_metabase.sql.template
index 0446927e..8bd32989 100644
--- a/services/metabase/configure_metabase.sql.template
+++ b/services/metabase/configure_metabase.sql.template
@@ -1,7 +1,19 @@
 CREATE USER ${METABASE_POSTGRES_USER} WITH PASSWORD '${METABASE_POSTGRES_PASSWORD}';
 
--- relies on readonly role aldready existing in the database
-GRANT ${POSTGRES_DB}_readonly TO ${METABASE_POSTGRES_USER};
+/*
+Access to simcore database
+*/
+
+GRANT CONNECT ON DATABASE ${POSTGRES_DB} TO ${METABASE_POSTGRES_USER};
+
+-- https://stackoverflow.com/questions/17338621/what-does-grant-usage-on-schema-do-exactly
+GRANT USAGE ON SCHEMA public TO ${METABASE_POSTGRES_USER};
+
+GRANT SELECT ON TABLE ${METABASE_POSTGRES_ALLOWED_SIMCORE_TABLES} TO ${METABASE_POSTGRES_USER};
+
+/*
+Metabase database to store its data
+*/
 
 CREATE DATABASE ${METABASE_POSTGRES_DB}
     WITH OWNER ${METABASE_POSTGRES_USER};