211 lines
8.1 KiB
Python
211 lines
8.1 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
# (c) 2015-2021, Felix Fontein <felix@fontein.de>
|
||
|
|
# (c) 2018 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: dependent
|
||
|
|
short_description: Composes a list with nested elements of other lists or dicts which can depend on previous loop variables
|
||
|
|
author: Felix Fontein (@felixfontein)
|
||
|
|
version_added: 3.1.0
|
||
|
|
description:
|
||
|
|
- "Takes the input lists and returns a list with elements that are lists, dictionaries,
|
||
|
|
or template expressions which evaluate to lists or dicts, composed of the elements of
|
||
|
|
the input evaluated lists and dictionaries."
|
||
|
|
options:
|
||
|
|
_raw:
|
||
|
|
description:
|
||
|
|
- A list where the elements are one-element dictionaries, mapping a name to a string, list, or dictionary.
|
||
|
|
The name is the index that is used in the result object. The value is iterated over as described below.
|
||
|
|
- If the value is a list, it is simply iterated over.
|
||
|
|
- If the value is a dictionary, it is iterated over and returned as if they would be processed by the
|
||
|
|
R(ansible.builtin.dict2items filter,ansible_collections.ansible.builtin.dict2items_filter).
|
||
|
|
- If the value is a string, it is evaluated as Jinja2 expressions which can access the previously chosen
|
||
|
|
elements with C(item.<index_name>). The result must be a list or a dictionary.
|
||
|
|
type: list
|
||
|
|
elements: dict
|
||
|
|
required: true
|
||
|
|
"""
|
||
|
|
|
||
|
|
EXAMPLES = """
|
||
|
|
- name: Install/remove public keys for active admin users
|
||
|
|
ansible.posix.authorized_key:
|
||
|
|
user: "{{ item.admin.key }}"
|
||
|
|
key: "{{ lookup('file', item.key.public_key) }}"
|
||
|
|
state: "{{ 'present' if item.key.active else 'absent' }}"
|
||
|
|
when: item.admin.value.active
|
||
|
|
with_community.general.dependent:
|
||
|
|
- admin: admin_user_data
|
||
|
|
- key: admin_ssh_keys[item.admin.key]
|
||
|
|
loop_control:
|
||
|
|
# Makes the output readable, so that it doesn't contain the whole subdictionaries and lists
|
||
|
|
label: "{{ [item.admin.key, 'active' if item.key.active else 'inactive', item.key.public_key] }}"
|
||
|
|
vars:
|
||
|
|
admin_user_data:
|
||
|
|
admin1:
|
||
|
|
name: Alice
|
||
|
|
active: true
|
||
|
|
admin2:
|
||
|
|
name: Bob
|
||
|
|
active: true
|
||
|
|
admin_ssh_keys:
|
||
|
|
admin1:
|
||
|
|
- private_key: keys/private_key_admin1.pem
|
||
|
|
public_key: keys/private_key_admin1.pub
|
||
|
|
active: true
|
||
|
|
admin2:
|
||
|
|
- private_key: keys/private_key_admin2.pem
|
||
|
|
public_key: keys/private_key_admin2.pub
|
||
|
|
active: true
|
||
|
|
- private_key: keys/private_key_admin2-old.pem
|
||
|
|
public_key: keys/private_key_admin2-old.pub
|
||
|
|
active: false
|
||
|
|
|
||
|
|
- name: Update DNS records
|
||
|
|
community.aws.route53:
|
||
|
|
zone: "{{ item.zone.key }}"
|
||
|
|
record: "{{ item.prefix.key ~ '.' if item.prefix.key else '' }}{{ item.zone.key }}"
|
||
|
|
type: "{{ item.entry.key }}"
|
||
|
|
ttl: "{{ item.entry.value.ttl | default(3600) }}"
|
||
|
|
value: "{{ item.entry.value.value }}"
|
||
|
|
state: "{{ 'absent' if (item.entry.value.absent | default(False)) else 'present' }}"
|
||
|
|
overwrite: true
|
||
|
|
loop_control:
|
||
|
|
# Makes the output readable, so that it doesn't contain the whole subdictionaries and lists
|
||
|
|
label: |-
|
||
|
|
{{ [item.zone.key, item.prefix.key, item.entry.key,
|
||
|
|
item.entry.value.ttl | default(3600),
|
||
|
|
item.entry.value.absent | default(False), item.entry.value.value] }}
|
||
|
|
with_community.general.dependent:
|
||
|
|
- zone: dns_setup
|
||
|
|
- prefix: item.zone.value
|
||
|
|
- entry: item.prefix.value
|
||
|
|
vars:
|
||
|
|
dns_setup:
|
||
|
|
example.com:
|
||
|
|
'':
|
||
|
|
A:
|
||
|
|
value:
|
||
|
|
- 1.2.3.4
|
||
|
|
AAAA:
|
||
|
|
value:
|
||
|
|
- "2a01:1:2:3::1"
|
||
|
|
'test._domainkey':
|
||
|
|
TXT:
|
||
|
|
ttl: 300
|
||
|
|
value:
|
||
|
|
- '"k=rsa; t=s; p=MIGfMA..."'
|
||
|
|
example.org:
|
||
|
|
'www':
|
||
|
|
A:
|
||
|
|
value:
|
||
|
|
- 1.2.3.4
|
||
|
|
- 5.6.7.8
|
||
|
|
"""
|
||
|
|
|
||
|
|
RETURN = """
|
||
|
|
_list:
|
||
|
|
description:
|
||
|
|
- A list composed of dictionaries whose keys are the variable names from the input list.
|
||
|
|
type: list
|
||
|
|
elements: dict
|
||
|
|
sample:
|
||
|
|
- key1: a
|
||
|
|
key2: test
|
||
|
|
- key1: a
|
||
|
|
key2: foo
|
||
|
|
- key1: b
|
||
|
|
key2: bar
|
||
|
|
"""
|
||
|
|
|
||
|
|
from ansible.errors import AnsibleLookupError
|
||
|
|
from ansible.module_utils.common._collections_compat import Mapping, Sequence
|
||
|
|
from ansible.module_utils.six import string_types
|
||
|
|
from ansible.plugins.lookup import LookupBase
|
||
|
|
from ansible.template import Templar
|
||
|
|
|
||
|
|
|
||
|
|
class LookupModule(LookupBase):
|
||
|
|
def __evaluate(self, expression, templar, variables):
|
||
|
|
"""Evaluate expression with templar.
|
||
|
|
|
||
|
|
``expression`` is the expression to evaluate.
|
||
|
|
``variables`` are the variables to use.
|
||
|
|
"""
|
||
|
|
templar.available_variables = variables or {}
|
||
|
|
return templar.template("{0}{1}{2}".format("{{", expression, "}}"), cache=False)
|
||
|
|
|
||
|
|
def __process(self, result, terms, index, current, templar, variables):
|
||
|
|
"""Fills ``result`` list with evaluated items.
|
||
|
|
|
||
|
|
``result`` is a list where the resulting items are placed.
|
||
|
|
``terms`` is the parsed list of terms
|
||
|
|
``index`` is the current index to be processed in the list.
|
||
|
|
``current`` is a dictionary where the first ``index`` values are filled in.
|
||
|
|
``variables`` are the variables currently available.
|
||
|
|
"""
|
||
|
|
# If we are done, add to result list:
|
||
|
|
if index == len(terms):
|
||
|
|
result.append(current.copy())
|
||
|
|
return
|
||
|
|
|
||
|
|
key, expression, values = terms[index]
|
||
|
|
|
||
|
|
if expression is not None:
|
||
|
|
# Evaluate expression in current context
|
||
|
|
vars = variables.copy()
|
||
|
|
vars['item'] = current.copy()
|
||
|
|
try:
|
||
|
|
values = self.__evaluate(expression, templar, variables=vars)
|
||
|
|
except Exception as e:
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'Caught "{error}" while evaluating {key!r} with item == {item!r}'.format(
|
||
|
|
error=e, key=key, item=current))
|
||
|
|
|
||
|
|
if isinstance(values, Mapping):
|
||
|
|
for idx, val in sorted(values.items()):
|
||
|
|
current[key] = dict([('key', idx), ('value', val)])
|
||
|
|
self.__process(result, terms, index + 1, current, templar, variables)
|
||
|
|
elif isinstance(values, Sequence):
|
||
|
|
for elt in values:
|
||
|
|
current[key] = elt
|
||
|
|
self.__process(result, terms, index + 1, current, templar, variables)
|
||
|
|
else:
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'Did not obtain dictionary or list while evaluating {key!r} with item == {item!r}, but {type}'.format(
|
||
|
|
key=key, item=current, type=type(values)))
|
||
|
|
|
||
|
|
def run(self, terms, variables=None, **kwargs):
|
||
|
|
"""Generate list."""
|
||
|
|
result = []
|
||
|
|
if len(terms) > 0:
|
||
|
|
templar = Templar(loader=self._templar._loader)
|
||
|
|
data = []
|
||
|
|
vars_so_far = set()
|
||
|
|
for index, term in enumerate(terms):
|
||
|
|
if not isinstance(term, Mapping):
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'Parameter {index} must be a dictionary, got {type}'.format(
|
||
|
|
index=index, type=type(term)))
|
||
|
|
if len(term) != 1:
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'Parameter {index} must be a one-element dictionary, got {count} elements'.format(
|
||
|
|
index=index, count=len(term)))
|
||
|
|
k, v = list(term.items())[0]
|
||
|
|
if k in vars_so_far:
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'The variable {key!r} appears more than once'.format(key=k))
|
||
|
|
vars_so_far.add(k)
|
||
|
|
if isinstance(v, string_types):
|
||
|
|
data.append((k, v, None))
|
||
|
|
elif isinstance(v, (Sequence, Mapping)):
|
||
|
|
data.append((k, None, v))
|
||
|
|
else:
|
||
|
|
raise AnsibleLookupError(
|
||
|
|
'Parameter {key!r} (index {index}) must have a value of type string, dictionary or list, got type {type}'.format(
|
||
|
|
index=index, key=k, type=type(v)))
|
||
|
|
self.__process(result, data, 0, {}, templar, variables)
|
||
|
|
return result
|