opensips-cp: fix reimporting db schema

Author: dariusstefan

etc/opensips-cp/docker-entrypoint.d/00_config_db.sh

@@ -9,4 +9,19 @@ sed -i "s/localhost/${MYSQL_IP}/g" /var/www/html/opensips-cp/config/db.inc.php
 
 sed -i "s/127.0.0.1/${OPENSIPS_IP}/g" /var/www/html/opensips-cp/config/db_schema.mysql
 
-add_table /var/www/html/opensips-cp/config/db_schema.mysql
+exists=$(
+  mysql -N -s \
+    -h "$MYSQL_IP" -u "$MYSQL_USER" -p"$MYSQL_PASSWORD" -D "$MYSQL_DATABASE" \
+    -e "SELECT EXISTS(
+           SELECT 1 FROM information_schema.tables
+           WHERE table_schema='${MYSQL_DATABASE}'
+             AND table_name='ocp_tools_config'
+         );" || echo 0
+)
+
+if [[ "$exists" == "1" ]]; then
+  echo "Schema present. Skipping import."
+else
+  echo "Schema missing (at least ocp_tools_config). Importing..."
+  add_table "/var/www/html/opensips-cp/config/db_schema.mysql"
+fi