template error

[simonq]

I get template error while templating string: unexpected '.' when running this task using ansible 1.8 (devel fa953e162e). Used to work with previous version I was running (1d04e4b3d2). Any thoughts?

- name: Get image id
  command: >
    docker inspect -f '{% raw %}{{ .Image }}{% endraw %}' nginx
  register: container_image

- name: Do something with image
  command: echo {{ container_image.stdout }}

[Michael DeHaan]

Sounds like there's a bug that should be filed - Can you please share the full ansible-playbook output from the above so we can see it in context though?

That message *may* be coming from Docker.

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[simonq]

Sorry for the late reply, forgot about this one. Anyway, after looking through some commits it seems this error message comes with b61a785:

in lib/ansible/utils/template.py;

        except TemplateSyntaxError, e:

            raise errors.AnsibleError("template error while templating string: %s" % str(e))

Removing those lines makes the playbook run without errors :)

[Michael DeHaan]

Removing the code that lets you know when there's a syntax error seems to be a bad thing :)

not sure what's up there to be honest, but I think pinning down what the error is is appropriate.

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[simonq]

So after putting some effort fixing the problem and doing some googling which led me to this thread I got it to work with the latest version.

Solution: change '{% raw %}{{ .Image }}{% endraw %}' to \{\{.Image\}\} 

I still would prefer using {% raw %} method since it looks nicer but at least it's working now :)

On Tuesday, 11 November 2014 22:58:23 UTC+1, simonq wrote:

[ma...@moduscreate.com]

I'm having the same issue. Also with a docker inspect command. It's worth noting that the command with the raw tags executes correctly, and it's only when acting upon the stdout that the TemplateSyntaxError is raised.

Example:
https://gist.github.com/ateoto/758b4a1f16793270e608

This works under Ansible 1.7.2

Should I file a issue on GH?

Thanks,
Matt

[Pavlo Baron]

I just had the same issue and solved it redirecting docker inspect output to a local file and cat'ing it from there. Is there a general fix for this meanwhile? Really looks like something is hanging around after docker inspect execution.