Backport ec2_eip_facts module for EIP support

This means that EIP support no longer requires Ansible 2.6
The local fact module has been named ec2_elasticip_facts
to avoid conflict with the ec2_eip_facts module whenever
the Ansible 2.6 upgrade takes place.

Signed-off-by: Elliot Murphy <statik@users.noreply.github.com>

library/ec2_elasticip_facts.py

@@ -0,0 +1,122 @@
+#!/usr/bin/python
+# Copyright (c) 2017 Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+#
+# backported from Ansible 2.6. This can be removed and replaced with the
+# ec2_eip_facts module after upgrading to Ansible 2.6
+
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+
+DOCUMENTATION = '''
+---
+module: ec2_elasticip_facts
+short_description: List EC2 EIP details
+description:
+    - List details of EC2 Elastic IP addresses.
+version_added: "2.6"
+author: "Brad Macpherson (@iiibrad)"
+options:
+  filters:
+    description:
+      - A set of filters to use. Each filter is a name:value pair. The value
+        may be a list or a single element.
+    required: false
+    default: {}
+extends_documentation_fragment:
+    - aws
+    - ec2
+'''
+
+EXAMPLES = '''
+# Note: These examples do not set authentication details or the AWS region,
+# see the AWS Guide for details.
+
+# List all EIP addresses in the current region.
+- ec2_elasticip_facts:
+  register: regional_eip_addresses
+
+# List all EIP addresses for a VM.
+- ec2_elasticip_facts:
+    filters:
+       instance-id: i-123456789
+  register: my_vm_eips
+
+- debug: msg="{{ my_vm_eips.addresses | json_query(\"[?private_ip_address=='10.0.0.5']\") }}"
+
+# List all EIP addresses for several VMs.
+- ec2_elasticip_facts:
+    filters:
+       instance-id:
+         - i-123456789
+         - i-987654321
+  register: my_vms_eips
+
+'''
+
+
+RETURN = '''
+addresses:
+  description: Properties of all Elastic IP addresses matching the provided filters. Each element is a dict with all the information related to an EIP.
+  returned: on success
+  type: list
+  sample: [{
+        "allocation_id": "eipalloc-64de1b01",
+        "association_id": "eipassoc-0fe9ce90d6e983e97",
+        "domain": "vpc",
+        "instance_id": "i-01020cfeb25b0c84f",
+        "network_interface_id": "eni-02fdeadfd4beef9323b",
+        "network_interface_owner_id": "0123456789",
+        "private_ip_address": "10.0.0.1",
+        "public_ip": "54.81.104.1",
+        "tags": {
+            "Name": "test-vm-54.81.104.1"
+        }
+    }]
+
+'''
+
+from ansible.module_utils.aws.core import AnsibleAWSModule
+from ansible.module_utils.ec2 import (ansible_dict_to_boto3_filter_list,
+                                      boto3_tag_list_to_ansible_dict,
+                                      camel_dict_to_snake_dict)
+try:
+    from botocore.exceptions import (BotoCoreError, ClientError)
+except ImportError:
+    pass  # caught by imported AnsibleAWSModule
+
+
+def get_eips_details(module):
+    connection = module.client('ec2')
+    filters = module.params.get("filters")
+    try:
+        response = connection.describe_addresses(
+            Filters=ansible_dict_to_boto3_filter_list(filters)
+        )
+    except (BotoCoreError, ClientError) as e:
+        module.fail_json_aws(
+            e,
+            msg="Error retrieving EIPs")
+
+    addresses = camel_dict_to_snake_dict(response)['addresses']
+    for address in addresses:
+        if 'tags' in address:
+            address['tags'] = boto3_tag_list_to_ansible_dict(address['tags'])
+    return addresses
+
+
+def main():
+    module = AnsibleAWSModule(
+        argument_spec=dict(
+            filters=dict(type='dict', default={})
+        ),
+        supports_check_mode=True
+    )
+
+    module.exit_json(changed=False, addresses=get_eips_details(module))
+
+
+if __name__ == '__main__':
+    main()

requirements.txt

@@ -1 +1 @@
-ansible==2.6.11
+ansible==2.5.2

roles/cloud-ec2/tasks/prompts.yml

@@ -56,7 +56,7 @@
 
 - block:
   - name: Get existing available Elastic IPs
-    ec2_eip_facts:
+    ec2_elasticip_facts:
     register: raw_eip_addresses
 
   - set_fact: