Update circle.yml to request docker to run.

circle.yml

@@ -1,27 +1,28 @@
 ---
 machine:
-  post:
-    - go version
-    - go version | grep 1.7.1 || (sudo rm -rf /usr/local/go && wget https://storage.googleapis.com/golang/go1.7.1.linux-amd64.tar.gz && sudo tar -C /usr/local -xzf go1.7.1.linux-amd64.tar.gz)
-    - go version
+    services:
+        - docker
+    post:
+        - go version
+        - go version | grep 1.7.1 || (sudo rm -rf /usr/local/go && wget https://storage.googleapis.com/golang/go1.7.1.linux-amd64.tar.gz && sudo tar -C /usr/local -xzf go1.7.1.linux-amd64.tar.gz)
+        - go version
 
 dependencies:
-  pre:
-      - git config --global url."git@github.com:".insteadOf "https://github.com/"
-      - mkdir -p ${HOME}/.go_workspace/src/github.com/influxdata
-      - ln -sf ${HOME}/mrfusion ${HOME}/.go_workspace/src/github.com/influxdata
-      - cd ${HOME}/.go_workspace/src/github.com/influxdata/mrfusion  && make
+    pre:
+        - git config --global url."git@github.com:".insteadOf "https://github.com/"
+        - mkdir -p ${HOME}/.go_workspace/src/github.com/influxdata
+        - ln -sf ${HOME}/mrfusion ${HOME}/.go_workspace/src/github.com/influxdata
+        - cd ${HOME}/.go_workspace/src/github.com/influxdata/mrfusion  && make
 
 test:
-  override:
-    - make test
+    override:
+        - make test
 
 deployment:
-  heroku:
-    branch: develop
+    heroku:
+        branch: develop
     commands:
-      - make docker
-      - docker login -e $HEROKU_EMAIL -u $HEROKU_EMAIL -p $HEROKU_PASS registry.heroku.com
-      - docker tag mrfusion registry.heroku.com/mrfusion-acc/web
-      - docker push registry.heroku.com/mrfusion-acc/web
-
+        - make docker
+        - docker login -e $HEROKU_EMAIL -u $HEROKU_EMAIL -p $HEROKU_PASS registry.heroku.com
+        - docker tag mrfusion registry.heroku.com/mrfusion-acc/web
+        - docker push registry.heroku.com/mrfusion-acc/web