update schema for azure support

Signed-off-by: Henry Avetisyan <[email protected]>

servers/zms/schema/schema_update.md

@@ -0,0 +1,26 @@
+# ZMS Schema Update Instructions
+
+This document provides instructions on how to update the ZMS schema when new features are
+added to the Athenz service.
+
+Athenz Authors are using [MySQLWorkbenc](https://dev.mysql.com/downloads/workbench/) to
+manage the ZMS schema. The schema is stored in the `servers/zms/schema/zms_server.mwb` file
+and the corresponding SQL script is stored in the `servers/zms/schema/zms_server.sql` file.
+
+## Steps to Update the ZMS Schema
+
+1. Open the `zms_server.mwb` file in MySQLWorkbench.
+2. Make the necessary changes to the schema.
+3. Save the changes to the `zms_server.mwb` file.
+4. Export the SQL script by selecting `File` -> `Export` -> `Forward Engineer SQL CREATE Script..`.
+5. Specify `zms_server.sql` file as the value for the `Output SQL Script File` field. Make sure no
+   other options are selected on this page. Click `Continue`.
+6. On the next page, make sure `Export MySQL Table Objects` is selected and click `Continue`.
+7. Finally, click `Finish` to complete the export process.
+
+## Steps to Generate the Schema Update SQL Script
+
+1. Create a new file in the updates directory with the name `update-<date>.sql` where `<date>` is
+   the date is the current date (e.g. update-20240523.sql).
+2. Include the necessary SQL statements in the file to update an existing schema (e.g. `ALTER TABLE`, etc.).
+3. Include the update file as part of your PR.

servers/zms/schema/updates/update-20240523.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `zms_server`.`domain` ADD `azure_tenant` VARCHAR(128) NOT NULL DEFAULT '';
+ALTER TABLE `zms_server`.`domain` ADD `azure_client` VARCHAR(128) NOT NULL DEFAULT '';

servers/zms/schema/zms_server.sql

@@ -1,5 +1,5 @@
 -- MySQL Script generated by MySQL Workbench
--- Mon Mar 25 15:21:04 2024
+-- Thu May 23 10:22:50 2024
 -- Model: New Model    Version: 1.0
 -- MySQL Workbench Forward Engineering
 
@@ -51,6 +51,8 @@ CREATE TABLE IF NOT EXISTS `zms_server`.`domain` (
   `feature_flags` INT NOT NULL DEFAULT 0,
   `environment` VARCHAR(32) NOT NULL DEFAULT '',
   `resource_owner` VARCHAR(256) NOT NULL DEFAULT '',
+  `azure_tenant` VARCHAR(128) NOT NULL DEFAULT '',
+  `azure_client` VARCHAR(128) NOT NULL DEFAULT '',
   PRIMARY KEY (`domain_id`),
   UNIQUE INDEX `uq_name` (`name` ASC),
   INDEX `idx_modified` (`modified` ASC),