Technology Tales

Adventures & experiences in contemporary technology

Fixing an Ansible warning about boolean type conversion

27th October 2022

My primary use for Ansible is doing system updates using the inbuilt apt module. Recently, I updated my main system to Linux Mint 21 and a few things like Ansible stopped working. Removing instances that I had added with pip3 sorted the problem but I then ran playbooks manually only for various warning messages to appear that I had not noticed before. What follows below is one of these.

[WARNING]: The value True (type bool) in a string field was converted to u'True' (type string). If this does not look like what you expect, quote the entire value to ensure it does not change.

The message is not so clear in some ways, not least because it had me looking for a boolean value of True when it should have been yes. A search on the web revealed something about the apt module that surprised me.: the value of the upgrade parameter is a string when others like it take boolean values of yes or no. Thus, I had passed a bareword of yes when it should have been declared in quotes as “yes”. To my mind, this is an inconsistency but I have changed things anyway to get rid of the message.

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