Merge pull request #2 from aktionskarten/chore/buildDockerfile

Chore/build dockerfile

.travis.yml

@@ -1,4 +1,6 @@
-language: node_js
+jobs:
+  include:
+    - language: node_js
       node_js:
         - "10"
       env:
@@ -19,3 +21,11 @@ install:
         - unzip -q test_data.zip -d test_data
       script:
         - xvfb-run --server-args="-screen 0 1024x768x24" npm test
+    - language: ruby
+      services:
+        - docker
+      before_install:
+        - docker build -t kombinat451/tileserver-gl .
+      script:
+        - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
+        - docker push kombinat451/tileserver-gl