connection config in spring app:
spring:
  application:
    name: payment-sender
  cloud:
    config:
      uri: http://config:8888
      fail-fast: true
  data:
      mongodb:
        host: localhost
        username: user
        password: ${MONGODB_PASSWORD}
        database: piggymetrics
        port: 27017

server:
  context-path: /payments
  port: 6000



docker compose :

version: '2.1'
services:

  payment-mongodb:
    environment:
        MONGODB_PASSWORD: user
    build : mongodb/.
    image : mongodb-micro
    restart: always
    ports:
          - 27017:27017
    logging:
      options:
        max-size: "10m"
        max-file: "10"

  payment-sender:
          build : payment-sender/.
          image : payment-sender
          restart: always
          ports:
                - 6000:6000
          links:
                - payment-mongodb
          logging:
            options:
              max-size: "10m"
              max-file: "10"