Check file exists and create a symlink

问题

I want to do something like that:

if file A exists or there is no symlink B, I want to create a symlink B -> A.

For now I have:

 B:
   file:
    - symlink:
       - target: A
    - exists:
        - name: A

But this is bad it checks not the thing I want. How can I achive this simple thing in salt ?

回答1:

We can use file.directory_exists

{% if not salt['file.directory_exists' ]('/symlink/path/A') %}
symlink:
  file.symlink:
    - name: /path/to/A
    - target: /symlink/path/A
{% endif %}

回答2:

You should use Dan Garthwaite's excellent answer here as a basis for how to check for the existence of a file. I have modified his solution to answer your question.

{% if 1 == salt['cmd.retcode']('test -f /path/to/A') %}
/path/to/A:
  file.symlink:
    - target: /symlink/path/A
{% endif %}

来源：https://stackoverflow.com/questions/22673022/check-file-exists-and-create-a-symlink