change naming convention for env files

Author: dominicarrojado

src/app.module.ts

@@ -9,7 +9,7 @@ import { configValidationSchema } from './config.schema';
 @Module({
   imports: [
     ConfigModule.forRoot({
-      envFilePath: [`.env.stage.${process.env.STAGE}`],
+      envFilePath: [`stage.${process.env.STAGE}.env`],
       validationSchema: configValidationSchema,
     }),
     TypeOrmModule.forRootAsync({

src/config.schema.ts

@@ -2,6 +2,7 @@ import * as Joi from 'joi';
 
 export const configValidationSchema = Joi.object({
   STAGE: Joi.string().required(),
+  PORT: Joi.number().required(),
   DB_HOST: Joi.string().required(),
   DB_PORT: Joi.number().default(5432).required(),
   DB_USERNAME: Joi.string().required(),

.env.stage.dev stage.dev.env

@@ -1,4 +1,4 @@
-PORT=5000
+PORT=3000
 DB_HOST=db
 DB_PORT=5432
 DB_USERNAME=postgres