add TypeORM postgres config and migration runner.

backend/src/config/index.ts

@@ -1,11 +1,28 @@
-import { registerAs } from '@nestjs/config';
 import { AppConfig } from '../types/AppConfig';
+import { PostgresConfig } from '../types/Config';
 import { NodeEnv } from '../types/NodeEnv';
 
 const env = (key: string): string => process.env[key] || '';
 
 const envInt = (key: string): number => parseInt(env(key), 10);
 
+const isEnabled = (key: string): boolean => env(key) === 'true';
+
+export const getPostgresConfig = (): PostgresConfig => {
+    return {
+        type: 'postgres',
+        url: `postgres://${env('POSTGRES_USER')}:${env('POSTGRES_PASSWORD')}@${env('POSTGRES_HOST')}:${env('POSTGRES_PORT')}/${env('POSTGRES_DB')}`,
+        host: env('POSTGRES_HOST'),
+        username: env('POSTGRES_USER'),
+        password: env('POSTGRES_PASSWORD'),
+        port: envInt('POSTGRES_PORT'),
+        database: env('POSTGRES_DB'),
+        entities: [__dirname + '/../modules/**/entities/*{.ts,.js}'],
+        migrations: [__dirname + '/../database/migrations/*{.ts,.js}'],
+        migrationsRun: isEnabled('POSTGRES_MIGRATIONS_RUN')
+    };
+};
+
 export const getAppConfig = (): AppConfig => {
     const rawOrigins = env('CORS_ORIGINS');
 
@@ -18,5 +35,3 @@ export const getAppConfig = (): AppConfig => {
             .filter(Boolean)
     };
 };
-
-export default registerAs('app', getAppConfig);