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Added redis_data module (#3230) (#3410)

* Added redis_set module

Added redis_set module and unit tests for the new module.
Applied suggested changes and removed redis_del in favor of state
option.
Also added redis utility class that handles connection.

* Typos, added version and BOTMETA

* Fixed import error checking

* Fixed Unit tests

* Docfix and return consistency

* Added Check Mode

* Update plugins/modules/database/misc/redis_data.py

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit 424af85929)

Co-authored-by: Andreas Botzner <paginabianca66@gmail.com>
This commit is contained in:
patchback[bot] 2021-09-20 20:31:07 +02:00 committed by GitHub
parent d4637e9b1c
commit b495035923
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2
.github/BOTMETA.yml vendored
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@ -467,6 +467,8 @@ files:
maintainers: levonet maintainers: levonet
$modules/database/misc/redis_data_info.py: $modules/database/misc/redis_data_info.py:
maintainers: paginabianca maintainers: paginabianca
$modules/database/misc/redis_data.py:
maintainers: paginabianca
$modules/database/misc/riak.py: $modules/database/misc/riak.py:
maintainers: drewkerrigan jsmartin maintainers: drewkerrigan jsmartin
$modules/database/mssql/mssql_db.py: $modules/database/mssql/mssql_db.py:

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2021, Andreas Botzner <andreas at botzner dot com>
# 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 = '''
---
module: redis_data
short_description: Set key value pairs in Redis
version_added: 3.7.0
description:
- Set key value pairs in Redis database.
author: "Andreas Botzner (@paginabianca)"
options:
key:
description:
- Database key.
required: true
type: str
value:
description:
- Value that key should be set to.
required: false
type: str
expiration:
description:
- Expiration time in milliseconds.
Setting this flag will always result in a change in the database.
required: false
type: int
non_existing:
description:
- Only set key if it does not already exist.
required: false
type: bool
existing:
description:
- Only set key if it already exists.
required: false
type: bool
keep_ttl:
description:
- Retain the time to live associated with the key.
required: false
type: bool
state:
description:
- State of the key.
default: present
type: str
choices:
- present
- absent
extends_documentation_fragment:
- community.general.redis.documentation
seealso:
- module: community.general.redis_data_info
- module: community.general.redis
'''
EXAMPLES = '''
- name: Set key foo=bar on localhost with no username
community.general.redis_data:
login_host: localhost
login_password: supersecret
key: foo
value: bar
state: present
- name: Set key foo=bar if non existing with expiration of 30s
community.general.redis_data:
login_host: localhost
login_password: supersecret
key: foo
value: bar
non_existing: true
expiration: 30000
state: present
- name: Set key foo=bar if existing and keep current TTL
community.general.redis_data:
login_host: localhost
login_password: supersecret
key: foo
value: bar
existing: true
keep_ttl: true
- name: Set key foo=bar on redishost with custom ca-cert file
community.general.redis_data:
login_host: redishost
login_password: supersecret
login_user: someuser
validate_certs: true
ssl_ca_certs: /path/to/ca/certs
key: foo
value: bar
- name: Delete key foo on localhost with no username
community.general.redis_data:
login_host: localhost
login_password: supersecret
key: foo
state: absent
'''
RETURN = '''
old_value:
description: Value of key before setting.
returned: on_success if state is C(present) and key exists in database.
type: str
sample: 'old_value_of_key'
value:
description: Value key was set to.
returned: on success if state is C(present).
type: str
sample: 'new_value_of_key'
msg:
description: A short message.
returned: always
type: str
sample: 'Set key: foo to bar'
'''
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.community.general.plugins.module_utils.redis import (
fail_imports, redis_auth_argument_spec, RedisAnsible)
def main():
redis_auth_args = redis_auth_argument_spec()
module_args = dict(
key=dict(type='str', required=True, no_log=False),
value=dict(type='str', required=False),
expiration=dict(type='int', required=False),
non_existing=dict(type='bool', required=False),
existing=dict(type='bool', required=False),
keep_ttl=dict(type='bool', required=False),
state=dict(type='str', default='present',
choices=['present', 'absent']),
)
module_args.update(redis_auth_args)
module = AnsibleModule(
argument_spec=module_args,
supports_check_mode=True,
required_if=[('state', 'present', ('value',))],
mutually_exclusive=[['non_existing', 'existing'],
['keep_ttl', 'expiration']],)
fail_imports(module)
redis = RedisAnsible(module)
key = module.params['key']
value = module.params['value']
px = module.params['expiration']
nx = module.params['non_existing']
xx = module.params['existing']
keepttl = module.params['keep_ttl']
state = module.params['state']
set_args = {'name': key, 'value': value, 'px': px,
'nx': nx, 'xx': xx, 'keepttl': keepttl}
result = {'changed': False}
old_value = None
try:
old_value = redis.connection.get(key)
except Exception as e:
msg = 'Failed to get value of key: {0} with exception: {1}'.format(
key, str(e))
result['msg'] = msg
module.fail_json(**result)
if state == 'absent':
if module.check_mode:
if old_value is None:
msg = 'Key: {0} not present'.format(key)
result['msg'] = msg
module.exit_json(**result)
else:
msg = 'Deleted key: {0}'.format(key)
result['msg'] = msg
module.exit_json(**result)
try:
ret = redis.connection.delete(key)
if ret == 0:
msg = 'Key: {0} not present'.format(key)
result['msg'] = msg
module.exit_json(**result)
else:
msg = 'Deleted key: {0}'.format(key)
result['msg'] = msg
result['changed'] = True
module.exit_json(**result)
except Exception as e:
msg = 'Failed to delete key: {0} with exception: {1}'.format(
key, str(e))
result['msg'] = msg
module.fail_json(**result)
old_value = None
try:
old_value = redis.connection.get(key)
except Exception as e:
msg = 'Failed to get value of key: {0} with exception: {1}'.format(
key, str(e))
result['msg'] = msg
module.fail_json(**result)
result['old_value'] = old_value
if old_value == value and keepttl is not False and px is None:
msg = 'Key {0} already has desired value'.format(key)
result['msg'] = msg
result['value'] = value
module.exit_json(**result)
if module.check_mode:
result['msg'] = 'Set key: {0}'.format(key)
result['value'] = value
module.exit_json(**result)
try:
ret = redis.connection.set(**set_args)
if ret is None:
if nx:
msg = 'Could not set key: {0}. Key already present.'.format(
key)
else:
msg = 'Could not set key: {0}. Key not present.'.format(key)
result['msg'] = msg
module.fail_json(**result)
msg = 'Set key: {0}'.format(key)
result['msg'] = msg
result['changed'] = True
result['value'] = value
module.exit_json(**result)
except Exception as e:
msg = 'Failed to set key: {0} with exception: {2}'.format(key, str(e))
result['msg'] = msg
module.fail_json(**result)
if __name__ == '__main__':
main()

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./database/misc/redis_data.py

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# -*- coding: utf-8 -*-
#
# Copyright: (c) 2021, Andreas Botzner <andreas at botzner dot com>
# 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
import pytest
import json
from redis import __version__
from ansible_collections.community.general.plugins.modules.database.misc import redis_data
from ansible_collections.community.general.tests.unit.plugins.modules.utils import set_module_args
HAS_REDIS_USERNAME_OPTION = True
if tuple(map(int, __version__.split('.'))) < (3, 4, 0):
HAS_REDIS_USERNAME_OPTION = False
def test_redis_data_without_arguments(capfd):
set_module_args({})
with pytest.raises(SystemExit) as results:
redis_data.main()
out, err = capfd.readouterr()
assert not err
assert json.loads(out)['failed']
@pytest.mark.skipif(not HAS_REDIS_USERNAME_OPTION, reason="Redis version < 3.4.0")
def test_redis_data_key(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'value': 'baz',
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value='bar')
mocker.patch('redis.Redis.set', return_value=True)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['old_value'] == 'bar'
assert json.loads(out)['value'] == 'baz'
assert json.loads(out)['msg'] == 'Set key: foo'
assert json.loads(out)['changed'] is True
@pytest.mark.skipif(not HAS_REDIS_USERNAME_OPTION, reason="Redis version < 3.4.0")
def test_redis_data_existing_key_nx(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'value': 'baz',
'non_existing': True,
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value='bar')
mocker.patch('redis.Redis.set', return_value=None)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['old_value'] == 'bar'
assert 'value' not in json.loads(out)
assert json.loads(
out)['msg'] == 'Could not set key: foo. Key already present.'
assert json.loads(out)['changed'] is False
assert json.loads(out)['failed'] is True
@pytest.mark.skipif(not HAS_REDIS_USERNAME_OPTION, reason="Redis version < 3.4.0")
def test_redis_data_non_existing_key_xx(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'value': 'baz',
'existing': True,
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value=None)
mocker.patch('redis.Redis.set', return_value=None)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['old_value'] is None
assert 'value' not in json.loads(out)
assert json.loads(
out)['msg'] == 'Could not set key: foo. Key not present.'
assert json.loads(out)['changed'] is False
assert json.loads(out)['failed'] is True
@pytest.mark.skipif(not HAS_REDIS_USERNAME_OPTION, reason="Redis version < 3.4.0")
def test_redis_data_delete_present_key(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'state': 'absent'})
mocker.patch('redis.Redis.get', return_value='bar')
mocker.patch('redis.Redis.delete', return_value=1)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Deleted key: foo'
assert json.loads(out)['changed'] is True
@pytest.mark.skipif(not HAS_REDIS_USERNAME_OPTION, reason="Redis version < 3.4.0")
def test_redis_data_delete_absent_key(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'state': 'absent'})
mocker.patch('redis.Redis.delete', return_value=0)
mocker.patch('redis.Redis.get', return_value=None)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Key: foo not present'
assert json.loads(out)['changed'] is False
@pytest.mark.skipif(HAS_REDIS_USERNAME_OPTION, reason="Redis version > 3.4.0")
def test_redis_data_fail_username(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_user': 'root',
'login_password': 'secret',
'key': 'foo',
'value': 'baz',
'_ansible_check_mode': False})
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['failed']
assert json.loads(
out)['msg'] == 'The option `username` in only supported with redis >= 3.4.0.'
def test_redis_data_key_no_username(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'value': 'baz',
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value='bar')
mocker.patch('redis.Redis.set', return_value=True)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['old_value'] == 'bar'
assert json.loads(out)['value'] == 'baz'
assert json.loads(out)['msg'] == 'Set key: foo'
assert json.loads(out)['changed'] is True
def test_redis_delete_key_no_username(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'absent',
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value='bar')
mocker.patch('redis.Redis.delete', return_value=1)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Deleted key: foo'
assert json.loads(out)['changed'] is True
def test_redis_delete_key_non_existent_key(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'absent',
'_ansible_check_mode': False})
mocker.patch('redis.Redis.get', return_value=None)
mocker.patch('redis.Redis.delete', return_value=0)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Key: foo not present'
assert json.loads(out)['changed'] is False
def test_redis_set_key_check_mode_nochange(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'present',
'value': 'bar',
'_ansible_check_mode': True})
mocker.patch('redis.Redis.get', return_value='bar')
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Key foo already has desired value'
assert json.loads(out)['value'] == 'bar'
assert not json.loads(out)['changed']
assert json.loads(out)['old_value'] == 'bar'
def test_redis_set_key_check_mode_delete_nx(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'present',
'value': 'baz',
'_ansible_check_mode': True})
mocker.patch('redis.Redis.get', return_value=None)
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Set key: foo'
assert json.loads(out)['value'] == 'baz'
assert json.loads(out)['old_value'] is None
def test_redis_set_key_check_mode_delete(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'present',
'value': 'baz',
'_ansible_check_mode': True})
mocker.patch('redis.Redis.get', return_value='bar')
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Set key: foo'
assert json.loads(out)['value'] == 'baz'
assert json.loads(out)['old_value'] == 'bar'
def test_redis_set_key_check_mode(capfd, mocker):
set_module_args({'login_host': 'localhost',
'login_password': 'secret',
'key': 'foo',
'state': 'present',
'value': 'baz',
'_ansible_check_mode': True})
mocker.patch('redis.Redis.get', return_value='bar')
with pytest.raises(SystemExit):
redis_data.main()
out, err = capfd.readouterr()
print(out)
assert not err
assert json.loads(out)['msg'] == 'Set key: foo'
assert json.loads(out)['value'] == 'baz'
assert json.loads(out)['old_value'] == 'bar'