相关疑难解决方法(0)

当ansible变量不是寄存器/未定义时,我正在寻找一种执行任务的方法,例如

-- name: some task
   command:  sed -n '5p' "{{app.dirs.includes}}/BUILD.info" | awk '{print  $2}'
   when: (! deployed_revision) AND ( !deployed_revision.stdout )
   register: deployed_revision