Support tagged release deployments

.travis.yml

@@ -1,13 +1,17 @@
 language: generic
 sudo: required
+
 services:
 - docker
+
 script:
 - make verify build test images
+
 deploy:
   provider: script
   script: build/deploy.sh
   skip_cleanup: true
   on:
     repo: munnerz/keepalived-cloud-provider
+    tags: true
     branch: master

build/deploy.sh

@@ -5,5 +5,10 @@ export REGISTRY=quay.io/munnerz/
 
 docker login -e="${QUAY_EMAIL}" -u "${QUAY_USERNAME}" -p "${QUAY_PASSWORD}" quay.io
 
-echo "Pushing images with sha tag."
-make push
+if [ "${TRAVIS_TAG}" = "" ]; then
+    echo "Pushing images with sha tag."
+    make push
+else
+    echo "Pushing images with release tag."
+    make push MUTABLE_TAG=latest VERSION="${TRAVIS_TAG}"
+fi