command output not registered

Archives Ansible Project
1

In the following example echo_out.stdout is properly populated with “hello” but cat_testfile.stdout and tail_testfile are both empty. My real use case is to do a pass/fail test on an external command that dumps it’s output to a file.

  • command: echo hello

register: echo_out

  • command: cat /tmp/testfile

register: cat_testfile

  • command: tail /tmp/testfile

register: cat_testfile

2

Resolved. my testfile (output from my external command) contained control characters that caused Ansible’s logging to silently fail. I’m guessing it was corrupting the JSON output. The control character was ^[ part of color coding the output.