How to escape single quotes in ansible assertions?

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1

I need to check this console output:

Kurento Media Server version: 6.16.0

Found modules:

‘core’ version 6.16.0

‘elements’ version 6.16.0

‘filters’ version 6.16.0

This assertion works:

  • name: KURENTO-MEDIA-SERVER - Assert

tags: kurento-media-server-check
assert:
that:

  • “‘Kurento Media Server version: {{ kurento_media_server_version }}’ in kms_result.stdout”
    quiet: yes

But I would like to add the ‘core’ and others too, but cannot figure out, how to escape the wrapping quotes for ‘core’, ‘filters’ and ‘elements’ in that string.

2

Any hint? Yaml single quote escaping https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters.html#id8 does not work in this case

so

  • “‘’‘core’’ version {{ kurento_media_server_version }}’ in kms_result.stdout”

fails

3

Single quoted strings are easier, but here’s both:

---
- name: Quoting Quotes Tests
  hosts: localhost
  gather_facts: no
  vars:
    kurento_media_server_version: 6.16.0
    kms_result:
      stdout: |
        Kurento Media Server version: 6.16.0
        Found modules:
          'core' version 6.16.0
          'elements' version 6.16.0
          'filters' version 6.16.0
  tasks:
    - name: data dump
      assert:
        that: "{{ item }}"
      loop:
        - "'Kurento Media Server version: {{ kurento_media_server_version }}' in kms_result.stdout"
        - '"Kurento Media Server version: {{ kurento_media_server_version }}" in kms_result.stdout'
        - '"''core'' version {{ kurento_media_server_version }}" in kms_result.stdout'
        - '"''elements'' version {{ kurento_media_server_version }}" in kms_result.stdout'
        - '"''filters'' version {{ kurento_media_server_version }}" in kms_result.stdout'
        - "\"'core' version {{ kurento_media_server_version }}\" in kms_result.stdout"
        - "\"'elements' version {{ kurento_media_server_version }}\" in kms_result.stdout"
        - "\"'filters' version {{ kurento_media_server_version }}\" in kms_result.stdout"
4

Wow, many thanks. I would have bet that I exactly did try all these steps to no avail, but indeed - it works.

Thanks!

5

I assume kms_result is the registered output from a prior task, thus stdout_lines will exist and be a list of the individual lines. You can assert as many things as you like in a single “that” parameter. It accepts a list. Read the documentation.

https://docs.ansible.com/ansible/latest/collections/ansible/builtin/assert_module.html

  • assert:
    that:
  • “Kurento Media Server version: {{ kurento_media_server_version }}” in kms_result.stdout_lines
  • “‘core’ version {{ kurento_media_server_version }}” in kms_result.stdout_lines
  • “‘elements’ version {{ kurento_media_server_version }}” in kms_result.stdout_lines
  • “‘filters’ version {{ kurento_media_server_version }}” in kms_result.stdout_lines
6

Yes, thanks. The issue is resolved. My bad

7

You can also avoid the moustaches in some cases:

- assert:
    that:
      - "Kurento Media Server version: " ~
kurento_media_server_version in kms_result.stdout_lines
      - "'core' version " ~ kurento_media_server_version in
kms_result.stdout_lines
      - "'elements' version" ~ kurento_media_server_version in
kms_result.stdout_lines
      - "'filters' version" ~ kurento_media_server_version in
kms_result.stdout_lines