Pass proxy variables to build environments

    if [[ -f Dockerfile ]]; then

      echo "Building Dockerfile-based application..."

      docker build -t "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG" .

      docker build \

        --build-arg HTTP_PROXY="$HTTP_PROXY" \

        --build-arg http_proxy="$http_proxy" \

        --build-arg HTTPS_PROXY="$HTTPS_PROXY" \

        --build-arg https_proxy="$https_proxy" \

        --build-arg FTP_PROXY="$FTP_PROXY" \

        --build-arg ftp_proxy="$ftp_proxy" \

        --build-arg NO_PROXY="$NO_PROXY" \

        --build-arg no_proxy="$no_proxy" \

        -t "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG" .

    else

      echo "Building Heroku-based application using gliderlabs/herokuish docker image..."

      docker run -i -e BUILDPACK_URL --name="$CI_CONTAINER_NAME" -v "$(pwd):/tmp/app:ro" gliderlabs/herokuish /bin/herokuish buildpack build

      docker run -i \

        -e BUILDPACK_URL \

        -e HTTP_PROXY \

        -e http_proxy \

        -e HTTPS_PROXY \

        -e https_proxy \

        -e FTP_PROXY \

        -e ftp_proxy \

        -e NO_PROXY \

        -e no_proxy \

        --name="$CI_CONTAINER_NAME" -v "$(pwd):/tmp/app:ro" gliderlabs/herokuish /bin/herokuish buildpack build

      docker commit "$CI_CONTAINER_NAME" "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG"

      docker rm "$CI_CONTAINER_NAME" >/dev/null

      echo ""