Jenkins配置从节点问题：ssh slave known_hosts ；/var/jenkins_home/.ssh/known_hosts No Known_happyzwh的专栏

仔细看日志，发现错误信息： 
/var/jenkins_home/.ssh/known_hosts [SSH] No Known Hosts file was found at /var/jenkins_home/.ssh/known_hosts. Please ensure one is created at this path and that Jenkins can read it. /var/jenkins_home/.ssh/known_hos