Elimina variables de prueba

RUNNER_OUTPUT_LIMIT=40960

RUNNER_EXECUTOR=docker

RUNNER_DOCKER_IMAGE=alpine

RUNNER_DOCKER_VOLUMES=/var/run/docker.sock:/var/run/docker.sock

RUNNER_DOCKER_EXTRA_HOSTS=gitlab-ce:127.0.0.1

RUNNER_DOCKER_TLS_VERIFY=false

RUNNER_DOCKER_PRIVILEGED=true

RUNNER_DOCKER_DISABLE_CACHE=true

      - RUNNER_OUTPUT_LIMIT

      - RUNNER_EXECUTOR

      - DOCKER_IMAGE=${RUNNER_DOCKER_IMAGE}

      - DOCKER_VOLUMES=${RUNNER_DOCKER_VOLUMES}

      - DOCKER_EXTRA_HOSTS=${RUNNER_DOCKER_EXTRA_HOSTS}

      - DOCKER_TLS_VERIFY=${RUNNER_DOCKER_TLS_VERIFY}

      - DOCKER_PRIVILEGED=${RUNNER_DOCKER_PRIVILEGED}

      - DOCKER_DISABLE_CACHE=${RUNNER_DOCKER_DISABLE_CACHE}