Update travis ci

.travis.yml

@@ -1,10 +1,11 @@
-language: go
+dist: trusty
 
-services:
-  - docker
-
-install: "docker build -t opencv:latest -t opencv:latest ."
-
-after_success:
-  - docker login -u"$DOCKERHUB_USERNAME" -p"$DOCKERHUB_PASSWORD"
-  - docker push iamkai/opencv-docker-golang:latest
+jobs:
+  include:
+    - stage: build docker image
+      script:
+      - echo "$DOCKERHUB_PASSWORD" | docker login -u "$DOCKERHUB_USERNAME" --password-stdin
+      - docker build -t opencv-docker-golang .
+      - docker images
+      - docker tag opencv-docker-golang $DOCKER_USERNAME/opencv-docker-golang
+      - docker push $DOCKER_USERNAME/opencv-docker-golang

Dockerfile

@@ -35,9 +35,7 @@ RUN curl -Lo opencv.zip https://github.com/opencv/opencv/archive/${OPENCV_VERSIO
     make preinstall && make install && \
     cd /go && rm -rf opencv*
 
-FROM golang:1.14.2-alpine3.11
-
-#final stage
+# Final stage
 FROM golang:1.14.2-alpine3.11 as opencv
 RUN apk --no-cache add ca-certificates gcc
 COPY --from=builder /usr/local/lib64 /usr/local/lib64