Get http:///var/run/docker.sock/v1.19/images/json: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?问题解决
执行：service docker restart
Cannot connect to the Docker daemon. Is ‘docker -d’ running on this host?
执行：docker -d
docker: relocation error: docker: symbol dm_task_get_info_with_deferred_remove, version Base not defined in file libdevmapper.so.1.02 with link time reference
执行：yum upgrade device-mapper-libs
