bool and string evaluation gives mixed result if using curly brackets

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1

The snippet below evaluates to true, then false with myvar=false. How come? ansible version 2.2.1.0 on OSX High Sierra

2

You can't use double curly brackets in when, in when you are in template mode already so the double curly brackets is implied.

3

The problem is that when: “{{ something == ‘yes’ and myvar }}” yields the desired result e.g.:

ansible-playbook play.yml -c local -i 127.0.0.1, -e myvar=true -e something=“yes”

PLAY [do stuff with curlies] ***************************************************
changed: [127.0.0.1]

I will go ahead and use “myvar | bool” everywhere as that too works.

4

The problem is that when: "{{ something == 'yes' and myvar }}" yields the
desired result e.g.:

ansible-playbook play.yml -c local -i 127.0.0.1, -e myvar=true -e
something="yes"
PLAY [do stuff with curlies]
***************************************************
changed: [127.0.0.1]

That's just luck since Jinja doesn't support stacked curly brackets.

I will go ahead and use "myvar | bool" everywhere as that too works.

Variables values on the command line become strings so you would need to filter it with bool or check for the actual string.