push image on branch release 2.1

Signed-off-by: runzexia <runzexia@yunify.com>

.travis.yml

@@ -29,8 +29,13 @@ install:
   - go get golang.org/x/lint/golint
 
 deploy:
-  skip_cleanup: true
-  provider: script
-  script: bash hack/docker_build.sh 
-  on:
-    branch: master
+  - skip_cleanup: true
+    provider: script
+    script: bash hack/docker_build.sh
+    on:
+      branch: master
+  - skip_cleanup: true
+    provider: script
+    script: bash hack/docker_build.sh
+    on:
+      branch: release-2.1

hack/docker_build.sh

@@ -13,6 +13,10 @@ elif [[ $TRAVIS_EVENT_TYPE == "cron" ]]; then
     TAG=dev-$(date +%Y%m%d)
 fi
 
+if [[ $TRAVIS_BRANCH == "release-2.1" ]]; then
+    TAG=release-2.1
+fi
+
 
 docker build -f build/ks-apigateway/Dockerfile -t $REPO/ks-apigateway:$TAG .
 docker build -f build/ks-apiserver/Dockerfile -t $REPO/ks-apiserver:$TAG .