修复第二次安装会报错的问题

init.py

 from install_docker import install_docker
 from install_runner import install_runner
 from set_env import init_env
-from set_proxy import set_linux_global_proxy, set_docker_service_proxy, set_docekr_container_proxy, \
-    set_gitlab_runner_git_proxy
 
 if __name__ == "__main__":
     HSCUSCODE = init_env()

install_runner.py

@@ -54,7 +54,7 @@ def register_huansi_runner(HSCUSCODE):
                        --tag-list huansi.{hscode}".format(hscode=HSCUSCODE))
     assert s1 == 0, "huansi_runner配置失败,如果要重新执行,不要再次执行init.py文件,请直接执行install_docker.py文件"
 
-
-if os.path.exists('/etc/gitlab-runner'):
+if __name__ == '__main__':
+    if os.path.exists('/etc/gitlab-runner'):
         install_runner()
         print("runner安装成功")