We shouldn't allow any arbitrary secret file to be updated in the
leap process, but instead ensuring the file present in
J/K/L will be properly updated to the end of the process.
If you had set the variable in those playbooks, you would
naturally CREATE a new file, alongside the existing user_secrets,
with the risks of:
- Having different values
- Having precedence issues depending on the file name
Change-Id: I2873318e2f1fd34673e95f8eb77a0001d649df1e