Use prod command in dockerfile

.gitignore

@@ -23,3 +23,4 @@ npm-debug.log
 !template.env
 
 swagger-spec.json
+dist/

Dockerfile

@@ -15,8 +15,6 @@ RUN npm install
 # Bundle app source
 COPY . .
 
-
-
-CMD npm run start:dev
+CMD npm run start:prod
 
 EXPOSE 3000

src/app.module.ts

 import { Module } from '@nestjs/common';
-import { EmailModule } from 'email/email.module';
-import { ConfigModule } from 'configuration/config.module';
+import { EmailModule } from './email/email.module';
+import { ConfigModule } from './configuration/config.module';
 
 @Module({
   imports: [ConfigModule, EmailModule],

src/email/email.service.ts

 import { Injectable, Logger, InternalServerErrorException } from '@nestjs/common';
 import * as amqp from 'amqplib';
 import { ContactForm, Email, EmailWithoutFrom } from './email';
-import { ConfigService } from 'configuration/config.service';
-import { buildContactAdminEmail, buildContactUserEmail } from 'email-templates/contact';
+import { ConfigService } from '../configuration/config.service';
+import { buildContactAdminEmail, buildContactUserEmail } from '../email-templates/contact';
 import moment = require('moment');
 
 @Injectable()