.travis.yml

sudo: required

services:
  - docker

branches:
  only:
  - master

env:
  # IMPORTANT! Add your docker slug here (commit once)
  - DOCKER_REPO_SLUG=qinmen/blog-client

script:
  # build latest image always
  - docker build -t $DOCKER_REPO_SLUG:$TRAVIS_BUILD_NUMBER .
  # build the tagged image
  - if [[ $TRAVIS_TAG = $TRAVIS_BRANCH ]]; then docker build -t $DOCKER_REPO_SLUG:$TRAVIS_BRANCH .; else true ; fi

after_success:
  # IMPORTANT! Add the environment variables in Travis Build Environment (one time!)
  - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
  # push to latest if master branch
  - if [[ $TRAVIS_BRANCH = master ]]; then docker push $DOCKER_REPO_SLUG:$TRAVIS_BUILD_NUMBER; else true; fi
  # push tag as well
  - if [[ $TRAVIS_TAG = $TRAVIS_BRANCH ]]; then docker push $DOCKER_REPO_SLUG:$TRAVIS_TAG; else true ; fi