Add docker-compose for the SonarQube

  If `docker-compose up -d` occurred error as follow

  ERROR: for sonar_db_1  UnixHTTPConnectionPool(host='localhost', port=None):
  Read timed out. (read timeout=120) ...

  We need to execute the below command and restart the docker

  $ export DOCKER_CLIENT_TIMEOUT=120
  $ export COMPOSE_HTTP_TIMEOUT=120

  ref: docker/compose#3927

sonar/docker-compose.yml

@@ -0,0 +1,43 @@
+version: "2"
+
+services:
+  sonarqube:
+    image: sonarqube:8.2-community
+    depends_on:
+      - db
+    ports:
+      - "9000:9000"
+    networks:
+      - sonarnet
+    environment:
+      SONAR_JDBC_URL: jdbc:postgresql://db:5432/sonar
+      SONAR_JDBC_USERNAME: sonar
+      SONAR_JDBC_PASSWORD: sonar
+    volumes:
+      - sonarqube_data:/opt/sonarqube/data
+      - sonarqube_extensions:/opt/sonarqube/extensions
+      - sonarqube_logs:/opt/sonarqube/logs
+      - sonarqube_temp:/opt/sonarqube/temp
+  db:
+    image: postgres
+    networks:
+      - sonarnet
+    environment:
+      POSTGRES_USER: sonar
+      POSTGRES_PASSWORD: sonar
+    volumes:
+      - postgresql:/var/lib/postgresql
+      # This needs explicit mapping due to https://github.com/docker-library/postgres/blob/4e48e3228a30763913ece952c611e5e9b95c8759/Dockerfile.template#L52
+      - postgresql_data:/var/lib/postgresql/data
+
+networks:
+  sonarnet:
+    driver: bridge
+
+volumes:
+  sonarqube_data:
+  sonarqube_extensions:
+  sonarqube_logs:
+  sonarqube_temp:
+  postgresql:
+  postgresql_data: