deploy to dockerHub on tags (#3011)

Author: flovilmart

.travis.yml

@@ -7,6 +7,7 @@ node_js:
 services:
   - postgresql
   - redis-server
+  - docker
 addons:
   postgresql: '9.5'
 before_script:
@@ -49,6 +50,13 @@ deploy:
     on:
       branch: master
       condition: "$BUILD_LEADER$BUILD_AGGREGATE_STATUS = YESothers_succeeded"
+  - provider: script
+    skip_cleanup: true
+    script: ./resources/docker-hub.sh
+    on:
+      tags: true
+      all_branches: true
+      condition: "$BUILD_LEADER$BUILD_AGGREGATE_STATUS = YESothers_succeeded"
   - provider: npm
     email:
       secure: 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

resources/docker-hub.sh

@@ -0,0 +1,3 @@
+docker login -e="$DOCKER_EMAIL" -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
+docker build -t parseplatform/parse-server:$TRAVIS_TAG .
+docker push parseplatform/parse-server:$TRAVIS_TAG