用blueocean构建项目时提示权限不足

错误日志如下

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.39/images/create?fromImage=gradle&tag=jdk8: dial unix /var/run/docker.sock: connect: permission denied

即运行jenkins的用户没有执行docker的权限

需要将此用户加入jenkins组中(用户为www)

usermod -G docker www

并且重新启动jenkins

service tomcat restart