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knowledge/technology/tools/Ansible/lookups/ansible.builtin.env.md
JMARyA c5cd492449
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2023-12-04 11:02:23 +01:00

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ansible.builtin.env

Allows you to query the environment variables available on the controller when you invoked Ansible.

Examples

- name: Basic usage
  ansible.builtin.debug:
    msg: "'{{ lookup('ansible.builtin.env', 'HOME') }}' is the HOME environment variable."

- name: Before 2.13, how to set default value if the variable is not defined.
        This cannot distinguish between USR undefined and USR=''.
  ansible.builtin.debug:
    msg: "{{ lookup('ansible.builtin.env', 'USR')|default('nobody', True) }} is the user."

- name: Example how to set default value if the variable is not defined, ignores USR=''
  ansible.builtin.debug:
    msg: "{{ lookup('ansible.builtin.env', 'USR', default='nobody') }} is the user."

- name: Set default value to Undefined, if the variable is not defined
  ansible.builtin.debug:
    msg: "{{ lookup('ansible.builtin.env', 'USR', default=Undefined) }} is the user."

- name: Set default value to undef(), if the variable is not defined
  ansible.builtin.debug:
    msg: "{{ lookup('ansible.builtin.env', 'USR', default=undef()) }} is the user."