Escaping double curly braces in Ansible

Question

How to escape double curly braces in Ansible 1.9.2?

For instance, how can I escape double curly braces in the following shell command?

- name: Test 
         


        

Answer 1

Tried on with ansible 2.1.1.0

{%raw%}...{%endraw%} block seems the clear way

- name: list container images and name date on the server
  shell: docker ps --format {%raw%}"{{.Image}} {{.Names}}"{%endraw%}

Only need to escape leading '{{'

tasks:
- name: list container images and names
  shell: docker ps --format "{{'{{'}}.Image}} {{'{{'}}.Names}}"

No harm to escap the tailing '}}', except more difficult to read.

tasks:
- name: list container images and names
  shell: docker ps --format "{{'{{'}}.Image{{'}}'}} {{'{{'}}.Names{{'}}'}}"

Backslash '\' seems do not work