相关疑难解决方法(0)

有没有办法只在ansible playbook中运行一个任务？

例如,在roles/hadoop_primary/tasks/hadoop_master.yml.我有"start hadoop job tracker services"任务.我可以运行那一项任务吗？

hadoop_master.yml文件:

---
# Playbook for  Hadoop master servers

- name: Install the namenode and jobtracker packages
  apt: name={{item}} force=yes state=latest
  with_items: 
   - hadoop-0.20-mapreduce-jobtracker
   - hadoop-hdfs-namenode
   - hadoop-doc
   - hue-plugins

- name: start hadoop jobtracker services
  service: name=hadoop-0.20-mapreduce-jobtracker state=started
  tags:
   debug