ensure upgradability for postgres database

abra.sh

@@ -5,4 +5,12 @@ function make_last_user_admin()
 {
     export DATABASE_URL="postgresql://${POSTGRES_USER}:$(cat /run/secrets/db_password)@db/${POSTGRES_DB}"
     SECRET_KEY_BASE=$(rake secret) rails runner "User.last.update(is_admin: true)"
+}
+
+# only run when upgrading from 0.6.0+v2.25.2 and earlier to 1.0.0+v2.25.2 and later
+function set_new_db_password()
+{
+    echo "setting new password for db user..."
+	psql -U $POSTGRES_USER -c "ALTER USER $POSTGRES_USER PASSWORD '$(cat /run/secrets/db_password)';"
+    echo "done"
 }