Agrega autodiscovery de fichero Dockerfile a lint

  variables:

    LINT_IMAGE_NAME: hadolint/hadolint

    LINT_IMAGE_TAG: latest

    DOCKERFILE_PATH: Dockerfile

    DOCKERFILE_NAME: Dockerfile

  before_script:

    - >

      if [ -z "${DOCKERFILE_PATH}" ];

      then

        export DOCKERFILE_PATH="$(find -name '${DOCKERFILE_NAME}')";

      fi;

  script:

    - docker run --rm -i ${LINT_IMAGE_NAME}:${LINT_IMAGE_TAG} < ${DOCKERFILE_PATH}

    - >

      if [ -z "${DOCKERFILE_PATH}" ];

      then

        echo "Dockerfile with name '${DOCKERFILE_NAME}' not found in project!";

        exit 1;

      elif [ ! f "${DOCKERFILE_PATH}" ];

      then

        echo "Dockerfile '${DOCKERFILE_PATH}' is not a valid file!";

        exit 1;

      fi;

      docker run --rm -i ${LINT_IMAGE_NAME}:${LINT_IMAGE_TAG} < "${DOCKERFILE_PATH}";

  allow_failure: true

  rules:

    - if: $CI_MERGE_REQUEST_ID ||