CI: Docker push fix (#4)

* fix travis GO111MODULE for push type

* use vendored code

* use vendor for testing

* skip install

* use vendor

* Update .travis.yml

* Update .travis.yml

.travis.yml

@@ -1,22 +1,29 @@
 language: go
 
 go:
-- "1.12.5"
+- 1.12.x
+
+git:
+  depth: 1
 
 env:
-  - GO111MODULE=on
+  global:
+    - GO111MODULE=on
+
+install: skip
 
 jobs:
   include:
+
     - stage: unit-test
       script:
-      - make test
+      - go test -v -mod=vendor ./controllers/... -coverprofile coverage.txt
       - bash <(curl -s https://codecov.io/bash)
+
     - stage: publish-image
       if: type = push
-      env:
-        - IMG=orkaproj/instance-manager:$TRAVIS_BRANCH
       script:
       - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
+      - export IMG=orkaproj/instance-manager:$TRAVIS_BRANCH
       - make docker-build
       - make docker-push