Experiment (#285)

* Use docker to start mongodb

modified:   .travis.yml

* Add mongodb 3.4 and 3.6 to the travisci build matrix

* Deploy only if $MAVEN_DEPLOY == true

.travis.yml

@@ -11,23 +11,16 @@ notifications:
     on_success: always
   slack:
     secure: "IeoyrbTPjPtopkmTFbcCzgy+9q8MMzhla9lXhZYdqsbn19KKe4UKNp0Cu0SY601ss586Lw4jsegvba6LFF3bi3j4aK0ZITtGJ4PYGvYByh3O7zi4Y0K2RUeYU1CfTIl18QBHcAIjQSmKLJPnyN9Y5Y4/4KhfWTqXy7tvkB36Oys="
-
-addons:
-  apt:
-    sources:
-      - mongodb-3.4-trusty
-    packages:
-      - mongodb-org-server
 
 cache:
   directories:
      - '$HOME/.m2'
 
 services:
-   - mongodb
    - docker
 
 before_install:
+    - docker run -d -p 27017:27017 mongo:$MONGO
     - ./bin/before-deploy.sh
 
 install: true
@@ -36,12 +29,16 @@ before_script:
    - git submodule update --init --recursive
 
 script:
-   - mvn clean install -DskipITs=false
+   - docker ps
+   - mvn clean verify -DskipITs=false
 
 after_success:
-   - ./bin/maven-deploy.sh
+   - if [[ "$MAVEN_DEPLOY" == true ]]; then ./bin/maven-deploy.sh; fi
 
 env:
+  matrix:
+    - MONGO=3.4
+    - MONGO=3.6 MAVEN_DEPLOY=true
   global:
     - secure: "rlLQCDykTqV7/EC+kTCw5JpYbuZwk0Neq5q1kRQ6hjcUYRdgjPJretVg+1e5+GcGOH4/Z/aOGdQrk1HtPW6tE+ePIUDAUwuLX2+6AUt2FqIqumYoJxYR7rsw+THkjiPaopB7qmWOUJ1vec7QCEiaGexYcjs3j6mv//SbnUksY2w="
     - secure: "t4tS+6EAC9nuE9SOKMfooux34usyPY2oBt0/737A2o9y3LXgy/jt0hyx09W4Gc1ZHq8QYoEiwHU40rlo2KWcxPKK/e4U/dZ1ne5OBJLKt5dhGr/PwaO0rVa7039zgQRn1VN+ayx92AfQCZMyA7iTrVDrM/2lxvDww0UYyZmViaA="