DevOps - Golang, Java & Docker

This script will create and compile a golang code, create a mangodb, use nginx as loadbalance with a java app on docker.
The script focuses on docker compose and docker file to perform this task on docker. If you need the complete code please check https://github.com/Lloyduct 

root@ip-172-31-1-150:~# cd trivago/
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# ls
docker-compose.yml  go-Dockerfile  golang-webserver  hosts  java-Dockerfile  nginx.conf  target
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# cat docker-compose.yml
version: '3.4'

services:
  nginx:
   container_name: e-bot7
   image: nginx:alpine
   restart: always
   ports:
        - "80:80"
   volumes:
        - ./src:/etc/nginx/default.conf
  - ./src:/usr/share/nginx/html
        - ./src:/etc/nginx/htpasswd

   links:
        - nginx
        - mongoDB

   depends_on:
      - nginx
        - mongoDB
 mongodb:
    image: mongo:4.0.8
    container_name: mongodb
    restart: unless-stopped
    command: mongod --auth
    environment:
      MONGO_INITDB_ROOT_USERNAME: admin
      MONGO_INITDB_ROOT_PASSWORD: e-bot7!
      MONGO_INITDB_DATABASE: nginxdb
      MONGODB_DATA_DIR: /data/db
      MONDODB_LOG_DIR: /dev/null
    volumes:
      - ./src:/data/db
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# cat go-Dockerfile
FROM golang:1.12.0-alpine3.9
MAINTAINER Lloyd
COPY . golang-webserver /home/ubuntu/trivago/
COPY . hosts /
ENV HOSTNAME  golang-webserver
EXPOSE 8080

CMD ["/home/ubuntu/trivago/golang-webserver"]
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# cat hosts
127.0.0.1   localhost
172.17.0.7  golang-webserver
172.17.0.8  java-webserver
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# cat java-Dockerfile
FROM openjdk:12-alpine

MAINTAINER Lloyd
RUN addgroup -g 1000 -S www-data \
 && adduser -u 1000 -D -S -G www-data www-data
COPY target/java-webserver.jar /home/ubuntu/trivago/target/java-webserver.jar
COPY . hosts /
ENV HOSTNAME  java-webserver
EXPOSE 8080

CMD ["java", "-jar", "/home/ubuntu/trivago/target/java-webserver.jar"]
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago#
root@ip-172-31-1-150:~/trivago# cat nginx.conf
worker_processes 1;

events { worker_connections 1024; }
http {
    upstream backend {
        server java-webserver weight=3;
        server golang-webserver;
    }

    server {
        listen 80;
        location /java-webserver {
          proxy_pass http://java-webserver:8080/;

        }
        location /golang-webserver {
          proxy_pass http://golang-webserver:8080;
        }
    }
}
root@ip-172-31-1-150:~/trivago#

environment:
      USER_NAME: "admin"
      PASSWORD: "e-bot7"
      BASIC_AUTH_USERNAME=admin \
    -e BASIC_AUTH_PASSWORD=password \