Test with both Kafka 0.10 and 0.11 in CI

Author: dasch

.circleci/config.yml

@@ -10,7 +10,7 @@ jobs:
       - run: bundle install --path vendor/bundle
       - run: bundle exec rspec
       - run: bundle exec rubocop
-  functional:
+  kafka-0.10:
     docker:
       - image: circleci/ruby:2.4.1-node
         environment:
@@ -38,9 +38,38 @@ jobs:
       - checkout
       - run: bundle install --path vendor/bundle
       - run: bundle exec rspec --profile --tag functional spec/functional
+  kafka-0.11:
+    docker:
+      - image: circleci/ruby:2.4.1-node
+        environment:
+          LOG_LEVEL: DEBUG
+      - image: wurstmeister/zookeeper
+      - image: wurstmeister/kafka:0.11.0.1
+        environment:
+          KAFKA_ADVERTISED_HOST_NAME: localhost
+          KAFKA_ADVERTISED_PORT: 9092
+          KAFKA_PORT: 9092
+          KAFKA_ZOOKEEPER_CONNECT: localhost:2181
+      - image: wurstmeister/kafka:0.11.0.1
+        environment:
+          KAFKA_ADVERTISED_HOST_NAME: localhost
+          KAFKA_ADVERTISED_PORT: 9093
+          KAFKA_PORT: 9093
+          KAFKA_ZOOKEEPER_CONNECT: localhost:2181
+      - image: wurstmeister/kafka:0.11.0.1
+        environment:
+          KAFKA_ADVERTISED_HOST_NAME: localhost
+          KAFKA_ADVERTISED_PORT: 9094
+          KAFKA_PORT: 9094
+          KAFKA_ZOOKEEPER_CONNECT: localhost:2181
+    steps:
+      - checkout
+      - run: bundle install --path vendor/bundle
+      - run: bundle exec rspec --profile --tag functional spec/functional
 workflows:
   version: 2
   test:
     jobs:
       - unit
-      - functional
+      - kafka-0.10
+      - kafka-0.11