fixing Keycloak Auth

docker/services/postgres/01-init-keycloak-schema.sql

@@ -0,0 +1,31 @@
+-- ===================================================================
+-- PostgreSQL Initialization Script for Keycloak
+-- ===================================================================
+-- This script creates a separate schema for Keycloak data within the
+-- meldestelle database, providing isolation and better organization.
+--
+-- Execution: Automatically executed by PostgreSQL on first startup
+-- via docker-entrypoint-initdb.d mechanism.
+-- ===================================================================
+
+-- Create Keycloak schema if it doesn't exist
+CREATE SCHEMA IF NOT EXISTS keycloak;
+
+-- Grant all privileges on the schema to the meldestelle user
+GRANT ALL PRIVILEGES ON SCHEMA keycloak TO meldestelle;
+
+-- Grant usage on the schema
+GRANT USAGE ON SCHEMA keycloak TO meldestelle;
+
+-- Set default privileges for future tables in the keycloak schema
+ALTER DEFAULT PRIVILEGES IN SCHEMA keycloak GRANT ALL ON TABLES TO meldestelle;
+ALTER DEFAULT PRIVILEGES IN SCHEMA keycloak GRANT ALL ON SEQUENCES TO meldestelle;
+ALTER DEFAULT PRIVILEGES IN SCHEMA keycloak GRANT ALL ON FUNCTIONS TO meldestelle;
+
+-- Log successful schema creation
+DO $$
+BEGIN
+    RAISE NOTICE 'Keycloak schema created successfully';
+    RAISE NOTICE 'Schema: keycloak';
+    RAISE NOTICE 'Owner: meldestelle';
+END $$;