AnderGI / Actividad17

Microservices app using Docker containers

Spring boot microservices architecture template

How to use it

Inside ./production there is a folder which contains the docker-compose.yml the init and dbdata folder. Inside that folder execute

docker-compose up

What is being used

- Microservices
- Eureka Server
- Spring Cloud Gateway
- Docker containers
- Docker networks
- Docker-compose

Docker compose template file

Service download

Important

All services are downloaded at the same time

Image rebuilding

Important

Every time the codebase of any microservice is changed a new image has to be built and pushed to

Relathionship with application.properties of the microservices

Important

Container name should be equal to the one in application.properties

Porst

Note

External port : Internal port (the one that is being used inside the docker network)

mysql image

Note

Create passwd for root user, create sa user and create database (for that database sa user will be granted all permissions)

Volumes

Important

Volumes will map our own folders and files inside ./compose with the ones inside the containers Init will have executable sql scripts. They will be executed in order.

Example

version: "3.8"
services:
  eureka:
    image: andergi/eureka:latest
    container_name: eureka
    mem_limit: 700m
    ports:
      - "8761:8761"
    networks:
      - "alumnos"
  gateway:
    image: andergi/gateway:latest
    container_name: gateway
    mem_limit: 700m
    ports:
      - "8090:8090"
    depends_on:
      - "eureka"
    deploy:
      restart_policy:
        condition: on-failure
        delay: 5s
        max_attempts: 5
        window: 120s
    networks:
      - "alumnos"
  mysql:
    image: mysql:latest
    container_name: mysql
    environment:
      - MYSQL_ROOT_PASSWORD=tiger
      - MYSQL_DATABASE=alumnos
      - MYSQL_USER=sa
      - MYSQL_PASSWORD=tiger
    volumes:
      - ./init:/docker-entrypoint-initdb.d
      - ./dbdata:/var/lib/mysql
    ports:
      - "3307:3306"
    networks:
      - "alumnos"
  modulos:
    image: andergi/modulos:latest
    container_name: modulos
    mem_limit: 700m
    ports:
      - "8010:8010"
    depends_on:
      - "mysql"
      - "eureka"
    networks:
      - "alumnos"
  alumnos:
    image: andergi/alumnos:latest
    container_name: alumnos
    mem_limit: 700m
    ports:
      - "8005:8005"
    depends_on:
      - "mysql"
      - "eureka"
    deploy:
      restart_policy:
        condition: on-failure
        delay: 5s
        max_attempts: 5
        window: 120s
    networks:
      - "alumnos"
  notas:
    image: andergi/notas:latest
    container_name: notas
    mem_limit: 700m
    ports:
      - "8015:8015"
    depends_on:
      - "mysql"
      - "eureka"
    networks:
      - "alumnos"
networks:
  alumnos:

SQL Server application.properties configuration

spring.datasource.url=jdbc:sqlserver://localhost:1234;databaseName=music;trustServerCertificate=true
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.username=sa
spring.datasource.password=tiger
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true
spring.jpa.database-platform=org.hibernate.dialect.SQLServerDialect

MySql application.properties configuration

spring.datasource.url=jdbc:mysql://mysql:3306/music
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect
spring.datasource.username=sa
spring.datasource.password=tiger
spring.jpa.hibernate.ddl-auto=none
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true