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# (c) 2012, Jan-Piet Mens <jpmens(at)gmail.com>
# (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = """
name: env
author: Jan-Piet Mens (@jpmens) <jpmens(at)gmail.com>
version_added: "0.9"
short_description: Read the value of environment variables
description:
- Allows you to query the environment variables available on the
controller when you invoked Ansible.
options:
_terms:
description:
- Environment variable or list of them to lookup the values for.
required: True
default:
description: What return when the variable is undefined
type: raw
default: ''
version_added: '2.13'
notes:
- You can pass the C(Undefined) object as C(default) to force an undefined error
"""
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."
"""
RETURN = """
_list:
description:
- Values from the environment variables.
type: list
"""
from jinja2.runtime import Undefined
from ansible.errors import AnsibleUndefinedVariable
from ansible.plugins.lookup import LookupBase
from ansible.utils import py3compat
class LookupModule(LookupBase):
def run(self, terms, variables, **kwargs):
self.set_options(var_options=variables, direct=kwargs)
ret = []
d = self.get_option('default')
for term in terms:
var = term.split()[0]
val = py3compat.environ.get(var, d)
if isinstance(val, Undefined):
raise AnsibleUndefinedVariable('The "env" lookup, found an undefined variable: %s' % var)
ret.append(val)
return ret
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| __pycache__ | Folder | 0755 |
|
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| __init__.py | File | 4.6 KB | 0644 |
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| config.py | File | 5.75 KB | 0644 |
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| csvfile.py | File | 6.15 KB | 0644 |
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| dict.py | File | 2.2 KB | 0644 |
|
| env.py | File | 2.67 KB | 0644 |
|
| file.py | File | 2.93 KB | 0644 |
|
| fileglob.py | File | 2.96 KB | 0644 |
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| first_found.py | File | 8.52 KB | 0644 |
|
| indexed_items.py | File | 1.55 KB | 0644 |
|
| ini.py | File | 7.6 KB | 0644 |
|
| inventory_hostnames.py | File | 1.73 KB | 0644 |
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| items.py | File | 1.82 KB | 0644 |
|
| lines.py | File | 2.16 KB | 0644 |
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| list.py | File | 1.12 KB | 0644 |
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| nested.py | File | 2.64 KB | 0644 |
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| password.py | File | 17.67 KB | 0644 |
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| pipe.py | File | 2.93 KB | 0644 |
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| random_choice.py | File | 1.54 KB | 0644 |
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| sequence.py | File | 8.96 KB | 0644 |
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| subelements.py | File | 6.18 KB | 0644 |
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| template.py | File | 6.83 KB | 0644 |
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| together.py | File | 2.11 KB | 0644 |
|
| unvault.py | File | 1.93 KB | 0644 |
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| url.py | File | 8.8 KB | 0644 |
|
| varnames.py | File | 2.31 KB | 0644 |
|
| vars.py | File | 3.4 KB | 0644 |
|