CODEWITHSUNDEEP
ansible
Karl
Karl

Reputation: 3113

How can I use jinja2 to join with quotes in Ansible?

I have an ansible list value:

hosts = ["site1", "site2", "site3"]

if I try this:

hosts | join(", ")

I get:

site1, site2, site3

But I want to get:

"site1", "site2", "site3"

Upvotes: 11

Views: 11272

Answers (4)

udondan
udondan

Reputation: 59989

The best solution seems to be

hosts | map('quote') | join(', ')

You can also use the join including the quotes, and ensure the whole expression is surrounded with quotes, to get the left and right outer quote. But this will leave empty quotes, in case the list is empty. Depending on your scenario:

"{{ hosts | join('", "') }}"

or

'"' + hosts | join('", "') + '"'

or

"'\"' + hosts | join('\", \"') + '\"'"

Upvotes: 12

sebo
sebo

Reputation: 1

From a json file file_name.json array like this

"hosts": [
    "site1",
    "site2",
    "site3"
]

Set_fact from a json file

- name: Set variables from parameters file
  set_fact:
    vars_from_json: "{{ lookup('file', 'file_name.json') | from_json }}"

Use join with double quote and comma, and wrap all around in double quote

- name: Create host list
  set_fact:    
    host_list: "{{ '\"' + vars_from_json.hosts | join('\"'', ''\"') + '\"' }}"

Upvotes: 0

Danny Staple
Danny Staple

Reputation: 7332

Ansible has a to_json, to_nice_json, or a to_yaml in it's filters:

{{ some_variable | to_json }}
{{ some_variable | to_yaml }}

Useful if you are outputting a JSON/YAML or even (it's a bit cheeky, but JSON mostly works) a python config file (ie Django settings).

For reference: https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters.html#filters-for-formatting-data

Upvotes: 4

Notabee
Notabee

Reputation: 71

The previous answer leaves "" if the list is empty. There is another approach that may be more robust, e.g. for assigning the joined list as a string to a different variable (example with single quotes):

{{ hosts | map("regex_replace","(.+)","\'\\1\'") | join(',')}}

Upvotes: 4

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