为什么命令模块挂起 psql 的 ansible？

Question

当我在我的剧本中发出这样的 psql 命令时：

- name: Run psql to pull in initial config data
  become_method: sudo
  become: yes
  become_user: postgres
  command: psql -U postgres -w eclaim < /opt/eclaim_revamp/sql_scripts/initial_config.sql

花很长时间才完成，看起来好像挂了，但是当我使用shell时，它可以通过：

- name: Run psql to pull in initial data
  become_method: sudo
  become: yes
  become_user: postgres
  shell: psql -U postgres -w eclaim < /opt/eclaim_revamp/sql_scripts/initial_sql_script.sql

谁能告诉我为什么？

Answer 1

来自documentation：

[The given command] will not be processed through the shell, so variables like $HOME and operations like "<", ">", "|", and "&" will not work (use the shell module if you need these features).

为什么命令模块挂起 psql 的 ansible？

Why does command module hang for ansible for psql?

postgresql

psql

ansible

ansible-playbook