use 16.04 latest docker image for forums

.travis.yml

-sudo: false
+sudo: required
+services:
+  - docker
 
 language: ruby
 
@@ -8,20 +10,8 @@ rvm:
 cache: bundler
 
 before_install:
-  - gem update bundler # Ensure we use the latest version of bundler. Travis' default version of outdated.
+  - docker-compose -f docker-compose-travis.yml up -d
+  - docker exec forum_testing chmod +x /edx/app/forum/cs_comments_service/.travis/run_tests.sh
 
-  # Run Elasticsearch as a daemon
-  - curl -O https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.13.zip
-  - unzip elasticsearch-0.90.13.zip
-  - elasticsearch-0.90.13/bin/elasticsearch
-  - sleep 10
-
-  # Run MongoDB as a daemon
-  - curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.12.tgz
-  - tar -zxf mongodb-linux-x86_64-3.0.12.tgz
-  - export PATH=mongodb-linux-x86_64-3.0.12/bin:$PATH
-  - mkdir -p ./mongo/db
-  - mkdir -p ./mongo/log
-  - mongod --fork --dbpath ./mongo/db --logpath ./mongo/log/mongodb.log --storageEngine wiredTiger
-
-script: bundle exec rspec
+script:
+  - docker exec forum_testing /edx/app/forum/cs_comments_service/.travis/run_tests.sh

.travis/run_tests.sh

+#!/bin/bash -xe
+. /edx/app/forum/forum_env
+. /edx/app/forum/ruby_env
+
+gem update bundler # Ensure we use the latest version of bundler. Travis' default version of outdated.
+
+# install java
+curl -L -C - -b "oraclelicense=accept-securebackup-cookie" -O http://download.oracle.com/otn-pub/java/jdk/8u111-b14/jdk-8u111-linux-x64.tar.gz
+tar -xvzf jdk-8u111-linux-x64.tar.gz -C /opt
+export JAVA_HOME=/opt/jdk1.8.0_111/
+export PATH=/opt/jdk1.8.0_111/bin:$PATH
+
+# Run Elasticsearch as a daemon
+curl -O https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.13.zip
+unzip elasticsearch-0.90.13.zip
+elasticsearch-0.90.13/bin/elasticsearch
+sleep 10
+
+# Run MongoDB as a daemon
+curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.12.tgz
+tar -zxf mongodb-linux-x86_64-3.0.12.tgz
+export PATH=mongodb-linux-x86_64-3.0.12/bin:$PATH
+mkdir -p ./mongo/db
+mkdir -p ./mongo/log
+mongod --fork --dbpath ./mongo/db --logpath ./mongo/log/mongodb.log --storageEngine wiredTiger
+
+bundle exec rspec

docker-compose-travis.yml

+# This is only currently used by Travis for testing
+version: "2"
+
+services:
+  forum:
+    image: edxops/forums:latest
+
+    container_name: forum_testing
+    volumes:
+      - .:/edx/app/forum/cs_comments_service
+      - $HOME/.gem:/edx/app/forum/.gem
+    command: tail -f /dev/null