* Introduce new "required_by' argument_spec option
This PR introduces a new **required_by** argument_spec option which allows you to say *"if parameter A is set, parameter B and C are required as well"*.
- The difference with **required_if** is that it can only add dependencies if a parameter is set to a specific value, not when it is just defined.
- The difference with **required_together** is that it has a commutative property, so: *"Parameter A and B are required together, if one of them has been defined"*.
As an example, we need this for the complex options that the xml module provides. One of the issues we often see is that users are not using the correct combination of options, and then are surprised that the module does not perform the requested action(s).
This would be solved by adding the correct dependencies, and mutual exclusives. For us this is important to get this shipped together with the new xml module in Ansible v2.4. (This is related to bugfix https://github.com/ansible/ansible/pull/28657)
```python
module = AnsibleModule(
argument_spec=dict(
path=dict(type='path', aliases=['dest', 'file']),
xmlstring=dict(type='str'),
xpath=dict(type='str'),
namespaces=dict(type='dict', default={}),
state=dict(type='str', default='present', choices=['absent',
'present'], aliases=['ensure']),
value=dict(type='raw'),
attribute=dict(type='raw'),
add_children=dict(type='list'),
set_children=dict(type='list'),
count=dict(type='bool', default=False),
print_match=dict(type='bool', default=False),
pretty_print=dict(type='bool', default=False),
content=dict(type='str', choices=['attribute', 'text']),
input_type=dict(type='str', default='yaml', choices=['xml',
'yaml']),
backup=dict(type='bool', default=False),
),
supports_check_mode=True,
required_by=dict(
add_children=['xpath'],
attribute=['value', 'xpath'],
content=['xpath'],
set_children=['xpath'],
value=['xpath'],
),
required_if=[
['count', True, ['xpath']],
['print_match', True, ['xpath']],
],
required_one_of=[
['path', 'xmlstring'],
['add_children', 'content', 'count', 'pretty_print', 'print_match', 'set_children', 'value'],
],
mutually_exclusive=[
['add_children', 'content', 'count', 'print_match','set_children', 'value'],
['path', 'xmlstring'],
],
)
```
* Rebase and fix conflict
* Add modules that use required_by functionality
* Update required_by schema
* Fix rebase issue
Trying to associate an already-associated ElasticIP was failing.
This is however supported by the `boto` method that is used
under the hood, `associate_address`:
To quote `boto` documentation:
```
This option to allow an Elastic IP address that is already
associated with another networkinterface or instance to be
re-associated with the specified instance or interface.
```
This defaults to False, both per backwards-compatibility
and to mirror the boto default value.
Fixes#27385
* Return correct changed status when EIP is reused
When reusing an existing EIP, the changed status
should be False, not True.
* If public_ip is given and it exists, return it
Ensure EIP allocation returns existing public_ip correctly
Changes to the metadata format were approved here:
https://github.com/ansible/proposals/issues/54
* Update documentation to the new metadata format
* Changes to metadata-tool to account for new metadata
* Add GPL license header
* Add upgrade subcommand to upgrade metadata version
* Change default metadata to the new format
* Fix exclusion of non-modules from the metadata report
* Fix ansible-doc for new module metadata
* Exclude metadata version from ansible-doc output
* Fix website docs generation for the new metadata
* Update metadata schema in valiate-modules test
* Update the metadata in all modules to the new version
* Change example syntax on supervisorctl module
* Change example syntax or _ec2_ami_search module
* Change example syntax on cloudformation module
* Change example syntax on ec2 module
* Change example syntax on ec2_facts module
* Change example syntax on ec2_eip module
* Change example syntax on rds module
* Change example syntax on route53 module
* Change example syntax on s3 module
* Change example syntax on digital_ocean module
* Change example syntax on docker_service module
* Change example syntax on cloudformation module
* Change example syntax on gc_storage module
* Change example syntax on gce module
* Change example syntax on gce_mig module
* Change example syntax on _glance_image module
* Change example syntax on _keystone_user module
* Change example syntax on _nova_keypair module
* Change example syntax on _quantum_floating module
* Change example syntax on _quantum_floating_ip_associate module
* Change example syntax on _quantum_network module
* Change example syntax on _quantum_router module
* Change example syntax on _quantum_router_gateway module
* Change example syntax on _quantum_router_interface module
* Change example syntax on _quantum_subnet module
* SQUASH _quantum_subnet
* Add missing quotes
* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing compile time errors IRT error exception handling for Python 3.5.
This does not need to be compatible with Python2.4 b/c Boto is Python 2.6 and above.
If an EC2 instance is already associated with an EIP address, we use
that, rather than allocating a new EIP address and associating it with
that.
Fixes#35.