New sts_assume_role module

cloud/amazon/sts_assume_role.py

@@ -0,0 +1,166 @@
+#!/usr/bin/python
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = '''
+---
+module: sts_assume_role 
+short_description: assume a role in AWS account and obtain temporary credentials.
+description:
+    - call AWS STS (Security Token Service) to assume a role in AWS account and obtain temporary credentials. This module has a dependency on python-boto.
+      For details on base AWS API reference http://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html
+version_added: "1.7"
+options:
+  role_arn:
+    description:
+      - The Amazon Resource Name (ARN) of the role that the caller is assuming (http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_Identifiers.html#Identifiers_ARNs) 
+    required: true
+    aliases: []
+  role_session_name:
+    description:
+      - Name of the role's session - will be used by CloudTrail
+    required: true
+    aliases: []
+  policy:
+    description:
+      - Supplemental policy to use in addition to assumed role's policies. 
+    required: false
+    default: null
+    aliases: []
+  duration_seconds:
+    description:
+      - The duration, in seconds, of the role session. The value can range from 900 seconds (15 minutes) to 3600 seconds (1 hour). By default, the value is set to 3600 seconds. 
+    required: false
+    default: null
+    aliases: []
+  external_id:
+    description:
+      - A unique identifier that is used by third parties to assume a role in their customers' accounts. 
+    required: false
+    default: null
+    aliases: []
+  mfa_serial_number:
+    description:
+      - he identification number of the MFA device that is associated with the user who is making the AssumeRole call. 
+    required: false
+    default: null
+    aliases: []
+  mfa_token:
+    description:
+      - The value provided by the MFA device, if the trust policy of the role being assumed requires MFA. 
+    required: false
+    default: null
+    aliases: []
+
+author: Boris Ekelchik
+extends_documentation_fragment: aws
+'''
+
+EXAMPLES = '''
+# Basic example of assuming a role
+tasks:
+- name: assume a role in account 123456789012
+  sts_assume_role: role_arn="arn:aws:iam::123456789012:role/someRole" session_name="someRoleSession"
+
+- name: display temporary credentials
+  debug: "temporary credentials for the assumed role are {{ ansible_temp_credentials }}"
+  
+- name: use temporary credentials for tagging an instance in account 123456789012 
+  ec2_tag: resource=i-xyzxyz01 region=us-west-1 state=present
+    args:
+      aws_access_key: "{{ ansible_temp_credentials.access_key }}"
+      aws_secret_key: "{{ ansible_temp_credentials.secret_key }}"
+      security_token: "{{ ansible_temp_credentials.session_token }}"
+    
+      tags:
+        Test: value
+'''
+
+import sys
+import time
+
+try:
+    import boto.sts
+    
+except ImportError:
+    print "failed=True msg='boto required for this module'"
+    sys.exit(1)
+
+def sts_connect(module):
+
+    """ Return an STS connection"""
+
+    region, ec2_url, boto_params = get_aws_connection_info(module)
+
+    # If we have a region specified, connect to its endpoint.
+    if region:
+        try:
+            sts = connect_to_aws(boto.sts, region, **boto_params)
+        except boto.exception.NoAuthHandlerFound, e:
+            module.fail_json(msg=str(e))
+    # Otherwise, no region so we fallback to connect_sts method
+    else:
+        try:
+            sts = boto.connect_sts(**boto_params)
+        except boto.exception.NoAuthHandlerFound, e:
+            module.fail_json(msg=str(e))
+
+
+    return sts
+
+def assumeRole():
+    data = sts.assume_role()
+    return data
+
+def main():
+    argument_spec = ec2_argument_spec()
+    argument_spec.update(dict(
+            role_arn = dict(required=True),
+            role_session_name = dict(required=True),
+            duraction_seconds = dict(),
+            external_id = dict(),
+            policy = dict(),
+            mfa_serial_number = dict(),
+            mfa_token = dict(),
+        )
+    )
+    module = AnsibleModule(argument_spec=argument_spec)
+
+    role_arn = module.params.get('role_arn')
+    role_session_name = module.params.get('role_session_name')
+    policy = module.params.get('policy')
+    duraction_seconds = module.params.get('duraction_seconds')
+    external_id = module.params.get('external_id')
+    mfa_serial_number = module.params.get('mfa_serial_number')
+    mfa_token = module.params.get('mfa_token')
+  
+    sts = sts_connect(module)
+    
+    temp_credentials = {}
+    
+    try:
+        temp_credentials = sts.assume_role(role_arn, role_session_name, policy, duraction_seconds,
+                                           external_id, mfa_serial_number, mfa_token).credentials.__dict__
+    except boto.exception.BotoServerError, e:
+        module.fail_json(msg='Unable to assume role {0}, error: {1}'.format(role_arn, e))
+    result = dict(changed=False, ansible_facts=dict(ansible_temp_credentials=temp_credentials))
+
+    module.exit_json(**result)
+    
+# import module snippets
+from ansible.module_utils.basic import *
+from ansible.module_utils.ec2 import *
+
+main()