Warchant

version: "3"

services:
  sonarqube:
    image: sonarqube
    expose:
      - 9000
    ports:
      - "127.0.0.1:9000:9000"
    networks:

ceduliocezar

TL;DR

After installing Docker, follow three steps:
Step 1:
Run: docker network create mynet

Step 2:
Run: docker run --name sonar-postgres -e POSTGRES_USER=sonar -e POSTGRES_PASSWORD=sonar -d -p 5432:5432 --net mynet postgres

Step 3:
Run: docker run --name sonarqube -p 9000:9000 -e SONARQUBE_JDBC_USERNAME=sonar -e SONARQUBE_JDBC_PASSWORD=sonar -e SONARQUBE_JDBC_URL=jdbc:postgresql://sonar-postgres:5432/sonar -d --net mynet sonarqube:5.6