travis file to build and package the helm chart

.tavis.yml

---
language: python

env:
  global:
    - HELM_URL=https://storage.googleapis.com/kubernetes-helm
    - HELM_TGZ=helm-v2.4.2-linux-amd64.tar.gz
    - REPO_DIR=/home/travis/build/inyee786/test-helm
    - YAMLLINT_VERSION=1.8.1
    - HARBOR_CHART_URL=https://{***domain***}/chartrepo
    - HARBOR_PROJECT_NAME=maya
    - CHART_FOLDER=charts

install:
  # Installing Helm
  - wget ${HELM_URL}/${HELM_TGZ}
  - tar xzfv ${HELM_TGZ}
  - PATH=`pwd`/linux-amd64/:$PATH
  - helm init --client-only
  - helm repo update
  # helm plugin to push helm chart
  - helm plugin install https://github.com/chartmuseum/helm-push --version v0.7.1
  # Installig pip deps
  - sudo pip install yamllint=="${YAMLLINT_VERSION}"

script:
  # Check charts format
  - >
     for dir in `ls ${REPO_DIR}/${CHART_FOLDER}`; do
      helm lint ${REPO_DIR}/${CHART_FOLDER}/$dir
      if [ $? != 0 ]; then
       travis_terminate 1
      fi
     done
  # Check YAML styling
  - yamllint -c .yamllint.yml -s .travis.yml .yamllint.yml
  - yamllint -c .yamllint.yml -s $(find . -type f -name "Chart.yaml")
  - yamllint -c .yamllint.yml -s $(find . -type f -name "values.yaml")

after_success:
  - >
    if [ $TRAVIS_BRANCH = 'master' ] && [ $TRAVIS_PULL_REQUEST = 'false' ]; then
      # Temporary dir for storing new packaged charts and index files
      BUILD_DIR=$(mktemp -d)

      # Push temporary directory to the stack
      pushd $BUILD_DIR

      # Iterate over all charts are package them push it to Harbor
      for dir in `ls ${REPO_DIR}/${CHART_FOLDER}`; do
       helm dep update ${REPO_DIR}/${CHART_FOLDER}/$dir
       helm package ${REPO_DIR}/${CHART_FOLDER}/$dir
       helm push --username ${HARBOR_USERNAME} --password ${HARBOR_PASSWORD}  ${REPO_DIR}/${CHART_FOLDER}/$dir ${HARBOR_CHART_URL}/maya
       if [ $? != 0 ]; then
        travis_terminate 1
       fi
      done

      # Pop temporary directory from the stack
      popd

    fi