Add parameter to `ec2` module to control instance shutdown behavior (stop|terminate)

lib/ansible/modules/cloud/amazon/ec2.py

@@ -203,6 +203,13 @@ options:
     required: false
     default: no
     choices: [ "yes", "no" ]
+  instance_initiated_shutdown_behavior:
+    version_added: "2.2"
+    description:
+    - Set whether AWS will Stop or Terminate an instance on shutdown
+    required: false
+    default: 'stop'
+    choices: [ "stop", "terminate" ]
   state:
     version_added: "1.3"
     description:
@@ -889,6 +896,7 @@ def create_instances(module, ec2, vpc, override_count=None):
     termination_protection = module.boolean(module.params.get('termination_protection'))
     network_interfaces = module.params.get('network_interfaces')
     spot_launch_group = module.params.get('spot_launch_group')
+    instance_initiated_shutdown_behavior = module.params.get('instance_initiated_shutdown_behavior')
 
     # group_id and group_name are exclusive of each other
     if group_id and group_name:
@@ -1040,6 +1048,9 @@ def create_instances(module, ec2, vpc, override_count=None):
                       private_ip_address = private_ip,
                     ))
 
+                # Spot instances do not support start/stop thereby not having the option to change shutdown behavior
+                params['instance_initiated_shutdown_behavior'] = instance_initiated_shutdown_behavior
+
                 res = ec2.run_instances(**params)
                 instids = [ i.id for i in res.instances ]
                 while True:
@@ -1074,6 +1085,12 @@ def create_instances(module, ec2, vpc, override_count=None):
                         module.fail_json(
                             msg="placement_group parameter requires Boto version 2.3.0 or higher.")
 
+                if boto_supports_param_in_spot_request(ec2, 'instance_initiated_shutdown_behavior'):
+                    params['instance_initiated_shutdown_behavior'] = instance_initiated_shutdown_behavior
+                elif instance_initiated_shutdown_behavior:
+                    module.fail_json(
+                        msg="instance_initiated_shutdown_behavior parameter is not supported by your Boto version.")
+
                 if spot_launch_group and isinstance(spot_launch_group, basestring):
                     params['launch_group'] = spot_launch_group
 
@@ -1435,6 +1452,7 @@ def main():
             source_dest_check = dict(type='bool', default=True),
             termination_protection = dict(type='bool', default=False),
             state = dict(default='present', choices=['present', 'absent', 'running', 'restarted', 'stopped']),
+            instance_initiated_shutdown_behavior=dict(default='stop', choices=['stop', 'terminate']),
             exact_count = dict(type='int', default=None),
             count_tag = dict(),
             volumes = dict(type='list'),